./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops-crafted-1/loopv3.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 1d5fa637
Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/loops-crafted-1/loopv3.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dde080b2b1290163775d8fea1546e1b21e5d1f7776ff175b316d8ca2be5d0863 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1
--- Real Ultimate output ---
This is Ultimate 0.2.4-dev-1d5fa63-m
[2024-09-13 08:50:51,885 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-09-13 08:50:51,938 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-09-13 08:50:51,942 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-09-13 08:50:51,943 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-09-13 08:50:51,967 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-09-13 08:50:51,968 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-09-13 08:50:51,968 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-09-13 08:50:51,968 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-09-13 08:50:51,970 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-09-13 08:50:51,970 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-09-13 08:50:51,970 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-09-13 08:50:51,971 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-09-13 08:50:51,971 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-09-13 08:50:51,972 INFO L153 SettingsManager]: * Use SBE=true
[2024-09-13 08:50:51,972 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-09-13 08:50:51,973 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-09-13 08:50:51,973 INFO L153 SettingsManager]: * sizeof long=4
[2024-09-13 08:50:51,973 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-09-13 08:50:51,973 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-09-13 08:50:51,973 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-09-13 08:50:51,974 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-09-13 08:50:51,975 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-09-13 08:50:51,975 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-09-13 08:50:51,975 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-09-13 08:50:51,975 INFO L153 SettingsManager]: * sizeof long double=12
[2024-09-13 08:50:51,976 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-09-13 08:50:51,977 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-09-13 08:50:51,977 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-09-13 08:50:51,977 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-09-13 08:50:51,977 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-09-13 08:50:51,977 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-09-13 08:50:51,977 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-13 08:50:51,978 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-09-13 08:50:51,978 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-09-13 08:50:51,978 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-09-13 08:50:51,978 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-09-13 08:50:51,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-09-13 08:50:51,978 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-09-13 08:50:51,978 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-09-13 08:50:51,979 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-09-13 08:50:51,979 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-09-13 08:50:51,979 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dde080b2b1290163775d8fea1546e1b21e5d1f7776ff175b316d8ca2be5d0863
Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1
[2024-09-13 08:50:52,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-09-13 08:50:52,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-09-13 08:50:52,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-09-13 08:50:52,211 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-09-13 08:50:52,211 INFO L274 PluginConnector]: CDTParser initialized
[2024-09-13 08:50:52,212 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loops-crafted-1/loopv3.c
[2024-09-13 08:50:53,386 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-09-13 08:50:53,511 INFO L384 CDTParser]: Found 1 translation units.
[2024-09-13 08:50:53,512 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops-crafted-1/loopv3.c
[2024-09-13 08:50:53,517 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/91f77e523/53cbed43d15145689b7e7cc9fc89dddb/FLAGd9012f7e9
[2024-09-13 08:50:53,526 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/91f77e523/53cbed43d15145689b7e7cc9fc89dddb
[2024-09-13 08:50:53,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-09-13 08:50:53,529 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-09-13 08:50:53,530 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-09-13 08:50:53,530 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-09-13 08:50:53,537 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-09-13 08:50:53,538 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 08:50:53" (1/1) ...
[2024-09-13 08:50:53,538 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cf98552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 08:50:53, skipping insertion in model container
[2024-09-13 08:50:53,538 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 08:50:53" (1/1) ...
[2024-09-13 08:50:53,565 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-09-13 08:50:53,680 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops-crafted-1/loopv3.c[456,469]
[2024-09-13 08:50:53,688 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-09-13 08:50:53,694 INFO L200 MainTranslator]: Completed pre-run
[2024-09-13 08:50:53,703 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops-crafted-1/loopv3.c[456,469]
[2024-09-13 08:50:53,706 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-09-13 08:50:53,718 INFO L204 MainTranslator]: Completed translation
[2024-09-13 08:50:53,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 08:50:53 WrapperNode
[2024-09-13 08:50:53,719 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-09-13 08:50:53,720 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-09-13 08:50:53,720 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-09-13 08:50:53,720 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-09-13 08:50:53,725 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 08:50:53" (1/1) ...
[2024-09-13 08:50:53,729 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 08:50:53" (1/1) ...
[2024-09-13 08:50:53,733 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0
[2024-09-13 08:50:53,733 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-09-13 08:50:53,734 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-09-13 08:50:53,734 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-09-13 08:50:53,734 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-09-13 08:50:53,743 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 08:50:53" (1/1) ...
[2024-09-13 08:50:53,743 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 08:50:53" (1/1) ...
[2024-09-13 08:50:53,744 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 08:50:53" (1/1) ...
[2024-09-13 08:50:53,751 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].
[2024-09-13 08:50:53,752 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 08:50:53" (1/1) ...
[2024-09-13 08:50:53,752 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 08:50:53" (1/1) ...
[2024-09-13 08:50:53,753 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 08:50:53" (1/1) ...
[2024-09-13 08:50:53,755 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 08:50:53" (1/1) ...
[2024-09-13 08:50:53,756 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 08:50:53" (1/1) ...
[2024-09-13 08:50:53,756 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 08:50:53" (1/1) ...
[2024-09-13 08:50:53,757 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-09-13 08:50:53,758 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-09-13 08:50:53,758 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-09-13 08:50:53,758 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-09-13 08:50:53,759 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 08:50:53" (1/1) ...
[2024-09-13 08:50:53,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-13 08:50:53,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-13 08:50:53,781 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)
[2024-09-13 08:50:53,783 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
[2024-09-13 08:50:53,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-09-13 08:50:53,818 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2024-09-13 08:50:53,818 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2024-09-13 08:50:53,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-09-13 08:50:53,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2024-09-13 08:50:53,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2024-09-13 08:50:53,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-09-13 08:50:53,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-09-13 08:50:53,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-09-13 08:50:53,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-09-13 08:50:53,868 INFO L242 CfgBuilder]: Building ICFG
[2024-09-13 08:50:53,870 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-09-13 08:50:53,983 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live.
[2024-09-13 08:50:53,983 INFO L291 CfgBuilder]: Performing block encoding
[2024-09-13 08:50:54,002 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-09-13 08:50:54,002 INFO L318 CfgBuilder]: Removed 1 assume(true) statements.
[2024-09-13 08:50:54,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 08:50:54 BoogieIcfgContainer
[2024-09-13 08:50:54,003 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-09-13 08:50:54,006 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-09-13 08:50:54,006 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-09-13 08:50:54,009 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-09-13 08:50:54,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.09 08:50:53" (1/3) ...
[2024-09-13 08:50:54,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68fab45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.09 08:50:54, skipping insertion in model container
[2024-09-13 08:50:54,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 08:50:53" (2/3) ...
[2024-09-13 08:50:54,011 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68fab45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.09 08:50:54, skipping insertion in model container
[2024-09-13 08:50:54,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 08:50:54" (3/3) ...
[2024-09-13 08:50:54,012 INFO L112 eAbstractionObserver]: Analyzing ICFG loopv3.c
[2024-09-13 08:50:54,024 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-09-13 08:50:54,024 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-09-13 08:50:54,061 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-09-13 08:50:54,066 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;@5a753f7d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-13 08:50:54,066 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-09-13 08:50:54,069 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 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)
[2024-09-13 08:50:54,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-09-13 08:50:54,074 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-13 08:50:54,075 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-13 08:50:54,075 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-13 08:50:54,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 08:50:54,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1532805614, now seen corresponding path program 1 times
[2024-09-13 08:50:54,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-13 08:50:54,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732496884]
[2024-09-13 08:50:54,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 08:50:54,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-13 08:50:54,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 08:50:54,199 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-09-13 08:50:54,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 08:50:54,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-13 08:50:54,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-13 08:50:54,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732496884]
[2024-09-13 08:50:54,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732496884] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-13 08:50:54,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-13 08:50:54,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-13 08:50:54,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980760322]
[2024-09-13 08:50:54,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-13 08:50:54,216 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-13 08:50:54,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-13 08:50:54,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-13 08:50:54,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-13 08:50:54,233 INFO L87 Difference]: Start difference. First operand has 19 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 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 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)
[2024-09-13 08:50:54,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-13 08:50:54,275 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions.
[2024-09-13 08:50:54,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-09-13 08:50:54,280 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
[2024-09-13 08:50:54,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-13 08:50:54,286 INFO L225 Difference]: With dead ends: 31
[2024-09-13 08:50:54,286 INFO L226 Difference]: Without dead ends: 13
[2024-09-13 08:50:54,289 INFO L433 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
[2024-09-13 08:50:54,291 INFO L434 NwaCegarLoop]: 5 mSDtfsCounter, 13 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-13 08:50:54,291 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 7 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-13 08:50:54,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states.
[2024-09-13 08:50:54,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13.
[2024-09-13 08:50:54,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 8 states have (on average 1.25) internal successors, (10), 8 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)
[2024-09-13 08:50:54,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions.
[2024-09-13 08:50:54,320 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 11
[2024-09-13 08:50:54,321 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-13 08:50:54,321 INFO L474 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions.
[2024-09-13 08:50:54,321 INFO L475 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)
[2024-09-13 08:50:54,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 08:50:54,321 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions.
[2024-09-13 08:50:54,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-09-13 08:50:54,322 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-13 08:50:54,322 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-13 08:50:54,322 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-09-13 08:50:54,323 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-13 08:50:54,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 08:50:54,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1819097124, now seen corresponding path program 1 times
[2024-09-13 08:50:54,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-13 08:50:54,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029334021]
[2024-09-13 08:50:54,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 08:50:54,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-13 08:50:54,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 08:50:54,458 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-09-13 08:50:54,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 08:50:54,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-13 08:50:54,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-13 08:50:54,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029334021]
[2024-09-13 08:50:54,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029334021] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-13 08:50:54,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-13 08:50:54,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-13 08:50:54,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520927633]
[2024-09-13 08:50:54,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-13 08:50:54,477 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-13 08:50:54,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-13 08:50:54,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-13 08:50:54,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-09-13 08:50:54,478 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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)
[2024-09-13 08:50:54,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-13 08:50:54,522 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions.
[2024-09-13 08:50:54,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-09-13 08:50:54,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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 11
[2024-09-13 08:50:54,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-13 08:50:54,524 INFO L225 Difference]: With dead ends: 21
[2024-09-13 08:50:54,524 INFO L226 Difference]: Without dead ends: 15
[2024-09-13 08:50:54,525 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2024-09-13 08:50:54,527 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 23 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-13 08:50:54,527 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 5 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-13 08:50:54,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states.
[2024-09-13 08:50:54,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14.
[2024-09-13 08:50:54,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-09-13 08:50:54,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions.
[2024-09-13 08:50:54,537 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11
[2024-09-13 08:50:54,537 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-13 08:50:54,537 INFO L474 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions.
[2024-09-13 08:50:54,537 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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)
[2024-09-13 08:50:54,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 08:50:54,538 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions.
[2024-09-13 08:50:54,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2024-09-13 08:50:54,539 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-13 08:50:54,539 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-13 08:50:54,539 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-09-13 08:50:54,540 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-13 08:50:54,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 08:50:54,540 INFO L85 PathProgramCache]: Analyzing trace with hash 576571423, now seen corresponding path program 1 times
[2024-09-13 08:50:54,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-13 08:50:54,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443219099]
[2024-09-13 08:50:54,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 08:50:54,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-13 08:50:54,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 08:50:54,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-09-13 08:50:54,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 08:50:54,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-13 08:50:54,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-13 08:50:54,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443219099]
[2024-09-13 08:50:54,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443219099] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-13 08:50:54,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90995074]
[2024-09-13 08:50:54,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 08:50:54,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-13 08:50:54,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-13 08:50:54,660 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)
[2024-09-13 08:50:54,662 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-09-13 08:50:54,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 08:50:54,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-09-13 08:50:54,705 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-13 08:50:54,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-13 08:50:54,760 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-13 08:50:54,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-13 08:50:54,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90995074] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-13 08:50:54,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-13 08:50:54,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11
[2024-09-13 08:50:54,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238658078]
[2024-09-13 08:50:54,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-13 08:50:54,807 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-09-13 08:50:54,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-13 08:50:54,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-09-13 08:50:54,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110
[2024-09-13 08:50:54,811 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 9 states have internal predecessors, (19), 4 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2024-09-13 08:50:54,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-13 08:50:54,908 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions.
[2024-09-13 08:50:54,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-09-13 08:50:54,908 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 9 states have internal predecessors, (19), 4 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13
[2024-09-13 08:50:54,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-13 08:50:54,909 INFO L225 Difference]: With dead ends: 26
[2024-09-13 08:50:54,909 INFO L226 Difference]: Without dead ends: 20
[2024-09-13 08:50:54,910 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=151, Unknown=0, NotChecked=0, Total=240
[2024-09-13 08:50:54,910 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 54 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-13 08:50:54,911 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 6 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-13 08:50:54,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states.
[2024-09-13 08:50:54,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20.
[2024-09-13 08:50:54,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 states have internal predecessors, (20), 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)
[2024-09-13 08:50:54,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions.
[2024-09-13 08:50:54,919 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 13
[2024-09-13 08:50:54,920 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-13 08:50:54,920 INFO L474 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions.
[2024-09-13 08:50:54,920 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 9 states have internal predecessors, (19), 4 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2024-09-13 08:50:54,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 08:50:54,922 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions.
[2024-09-13 08:50:54,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2024-09-13 08:50:54,922 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-13 08:50:54,922 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-13 08:50:54,935 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-09-13 08:50:55,123 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
[2024-09-13 08:50:55,123 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-13 08:50:55,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 08:50:55,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1110535272, now seen corresponding path program 2 times
[2024-09-13 08:50:55,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-13 08:50:55,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911759270]
[2024-09-13 08:50:55,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 08:50:55,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-13 08:50:55,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 08:50:55,254 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-09-13 08:50:55,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 08:50:55,270 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-13 08:50:55,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-13 08:50:55,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911759270]
[2024-09-13 08:50:55,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911759270] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-13 08:50:55,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538902567]
[2024-09-13 08:50:55,271 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-09-13 08:50:55,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-13 08:50:55,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-13 08:50:55,276 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)
[2024-09-13 08:50:55,281 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-09-13 08:50:55,322 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-09-13 08:50:55,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-09-13 08:50:55,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-09-13 08:50:55,324 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-13 08:50:55,413 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-13 08:50:55,414 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-13 08:50:55,498 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-13 08:50:55,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538902567] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-13 08:50:55,498 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-13 08:50:55,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20
[2024-09-13 08:50:55,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538322400]
[2024-09-13 08:50:55,499 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-13 08:50:55,499 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2024-09-13 08:50:55,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-13 08:50:55,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2024-09-13 08:50:55,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=231, Unknown=0, NotChecked=0, Total=380
[2024-09-13 08:50:55,501 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand has 20 states, 20 states have (on average 1.85) internal successors, (37), 18 states have internal predecessors, (37), 4 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2024-09-13 08:50:55,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-13 08:50:55,705 INFO L93 Difference]: Finished difference Result 38 states and 53 transitions.
[2024-09-13 08:50:55,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2024-09-13 08:50:55,705 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.85) internal successors, (37), 18 states have internal predecessors, (37), 4 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19
[2024-09-13 08:50:55,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-13 08:50:55,707 INFO L225 Difference]: With dead ends: 38
[2024-09-13 08:50:55,707 INFO L226 Difference]: Without dead ends: 32
[2024-09-13 08:50:55,707 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=329, Invalid=601, Unknown=0, NotChecked=0, Total=930
[2024-09-13 08:50:55,708 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 92 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-13 08:50:55,708 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 6 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-13 08:50:55,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2024-09-13 08:50:55,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32.
[2024-09-13 08:50:55,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 27 states have internal predecessors, (38), 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)
[2024-09-13 08:50:55,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions.
[2024-09-13 08:50:55,715 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 42 transitions. Word has length 19
[2024-09-13 08:50:55,715 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-13 08:50:55,715 INFO L474 AbstractCegarLoop]: Abstraction has 32 states and 42 transitions.
[2024-09-13 08:50:55,715 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.85) internal successors, (37), 18 states have internal predecessors, (37), 4 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2024-09-13 08:50:55,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 08:50:55,716 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions.
[2024-09-13 08:50:55,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2024-09-13 08:50:55,716 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-13 08:50:55,716 INFO L216 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-13 08:50:55,729 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-09-13 08:50:55,920 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-13 08:50:55,921 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-13 08:50:55,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 08:50:55,921 INFO L85 PathProgramCache]: Analyzing trace with hash 2050716858, now seen corresponding path program 3 times
[2024-09-13 08:50:55,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-13 08:50:55,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030465927]
[2024-09-13 08:50:55,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 08:50:55,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-13 08:50:55,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 08:50:56,108 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-09-13 08:50:56,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 08:50:56,118 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-13 08:50:56,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-13 08:50:56,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030465927]
[2024-09-13 08:50:56,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030465927] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-13 08:50:56,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104583826]
[2024-09-13 08:50:56,119 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-09-13 08:50:56,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-13 08:50:56,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-13 08:50:56,121 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)
[2024-09-13 08:50:56,121 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-09-13 08:50:56,159 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s)
[2024-09-13 08:50:56,160 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-09-13 08:50:56,160 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-09-13 08:50:56,161 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-13 08:50:56,333 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-13 08:50:56,333 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-13 08:50:56,554 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-13 08:50:56,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104583826] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-13 08:50:56,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-13 08:50:56,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 38
[2024-09-13 08:50:56,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320524224]
[2024-09-13 08:50:56,555 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-13 08:50:56,555 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 38 states
[2024-09-13 08:50:56,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-13 08:50:56,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants.
[2024-09-13 08:50:56,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=581, Invalid=825, Unknown=0, NotChecked=0, Total=1406
[2024-09-13 08:50:56,557 INFO L87 Difference]: Start difference. First operand 32 states and 42 transitions. Second operand has 38 states, 38 states have (on average 1.9210526315789473) internal successors, (73), 36 states have internal predecessors, (73), 4 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2024-09-13 08:50:57,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-13 08:50:57,017 INFO L93 Difference]: Finished difference Result 62 states and 95 transitions.
[2024-09-13 08:50:57,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states.
[2024-09-13 08:50:57,018 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 1.9210526315789473) internal successors, (73), 36 states have internal predecessors, (73), 4 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31
[2024-09-13 08:50:57,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-13 08:50:57,021 INFO L225 Difference]: With dead ends: 62
[2024-09-13 08:50:57,021 INFO L226 Difference]: Without dead ends: 56
[2024-09-13 08:50:57,022 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1007 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1268, Invalid=2392, Unknown=0, NotChecked=0, Total=3660
[2024-09-13 08:50:57,023 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 119 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-13 08:50:57,023 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 13 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-13 08:50:57,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states.
[2024-09-13 08:50:57,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56.
[2024-09-13 08:50:57,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 51 states have (on average 1.4509803921568627) internal successors, (74), 51 states have internal predecessors, (74), 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)
[2024-09-13 08:50:57,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 78 transitions.
[2024-09-13 08:50:57,048 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 78 transitions. Word has length 31
[2024-09-13 08:50:57,049 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-13 08:50:57,049 INFO L474 AbstractCegarLoop]: Abstraction has 56 states and 78 transitions.
[2024-09-13 08:50:57,049 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 1.9210526315789473) internal successors, (73), 36 states have internal predecessors, (73), 4 states have call successors, (5), 5 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2024-09-13 08:50:57,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 08:50:57,050 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions.
[2024-09-13 08:50:57,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56
[2024-09-13 08:50:57,051 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-13 08:50:57,051 INFO L216 NwaCegarLoop]: trace histogram [22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-13 08:50:57,064 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-09-13 08:50:57,252 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-13 08:50:57,252 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-13 08:50:57,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 08:50:57,253 INFO L85 PathProgramCache]: Analyzing trace with hash -2057550754, now seen corresponding path program 4 times
[2024-09-13 08:50:57,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-13 08:50:57,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986076743]
[2024-09-13 08:50:57,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 08:50:57,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-13 08:50:57,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 08:50:57,741 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-09-13 08:50:57,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 08:50:57,749 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-13 08:50:57,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-13 08:50:57,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986076743]
[2024-09-13 08:50:57,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986076743] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-13 08:50:57,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885854240]
[2024-09-13 08:50:57,750 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-09-13 08:50:57,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-13 08:50:57,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-13 08:50:57,751 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-13 08:50:57,753 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-09-13 08:50:57,786 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-09-13 08:50:57,786 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-09-13 08:50:57,787 WARN L260 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 51 conjuncts are in the unsatisfiable core
[2024-09-13 08:50:57,788 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-13 08:50:58,356 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-13 08:50:58,356 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-13 08:50:58,608 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 484 trivial. 0 not checked.
[2024-09-13 08:50:58,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885854240] provided 1 perfect and 1 imperfect interpolant sequences
[2024-09-13 08:50:58,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2024-09-13 08:50:58,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [26, 28] total 55
[2024-09-13 08:50:58,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114639456]
[2024-09-13 08:50:58,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-13 08:50:58,609 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-09-13 08:50:58,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-13 08:50:58,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-09-13 08:50:58,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=390, Invalid=2580, Unknown=0, NotChecked=0, Total=2970
[2024-09-13 08:50:58,611 INFO L87 Difference]: Start difference. First operand 56 states and 78 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 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)
[2024-09-13 08:50:58,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-13 08:50:58,654 INFO L93 Difference]: Finished difference Result 56 states and 78 transitions.
[2024-09-13 08:50:58,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-09-13 08:50:58,655 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 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 55
[2024-09-13 08:50:58,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-13 08:50:58,655 INFO L225 Difference]: With dead ends: 56
[2024-09-13 08:50:58,655 INFO L226 Difference]: Without dead ends: 0
[2024-09-13 08:50:58,656 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 81 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 770 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=394, Invalid=2686, Unknown=0, NotChecked=0, Total=3080
[2024-09-13 08:50:58,657 INFO L434 NwaCegarLoop]: 5 mSDtfsCounter, 1 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-13 08:50:58,657 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 18 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-13 08:50:58,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-09-13 08:50:58,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-09-13 08:50:58,658 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)
[2024-09-13 08:50:58,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-09-13 08:50:58,658 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55
[2024-09-13 08:50:58,658 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-13 08:50:58,658 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-09-13 08:50:58,658 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 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)
[2024-09-13 08:50:58,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 08:50:58,659 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-09-13 08:50:58,659 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-09-13 08:50:58,661 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-09-13 08:50:58,673 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-09-13 08:50:58,861 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-13 08:50:58,864 INFO L408 BasicCegarLoop]: Path program histogram: [4, 1, 1]
[2024-09-13 08:50:58,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-09-13 08:50:59,073 INFO L165 ceAbstractionStarter]: Computing trace abstraction results
[2024-09-13 08:50:59,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.09 08:50:59 BoogieIcfgContainer
[2024-09-13 08:50:59,083 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-09-13 08:50:59,084 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-09-13 08:50:59,084 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-09-13 08:50:59,084 INFO L274 PluginConnector]: Witness Printer initialized
[2024-09-13 08:50:59,084 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 08:50:54" (3/4) ...
[2024-09-13 08:50:59,086 INFO L139 WitnessPrinter]: Generating witness for correct program
[2024-09-13 08:50:59,088 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init
[2024-09-13 08:50:59,088 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure main
[2024-09-13 08:50:59,088 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert
[2024-09-13 08:50:59,090 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges
[2024-09-13 08:50:59,090 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges
[2024-09-13 08:50:59,090 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-09-13 08:50:59,090 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-09-13 08:50:59,153 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.graphml
[2024-09-13 08:50:59,154 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml
[2024-09-13 08:50:59,154 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-09-13 08:50:59,154 INFO L158 Benchmark]: Toolchain (without parser) took 5625.39ms. Allocated memory was 134.2MB in the beginning and 239.1MB in the end (delta: 104.9MB). Free memory was 62.7MB in the beginning and 92.6MB in the end (delta: -30.0MB). Peak memory consumption was 76.3MB. Max. memory is 16.1GB.
[2024-09-13 08:50:59,154 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 134.2MB. Free memory was 102.4MB in the beginning and 102.3MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-09-13 08:50:59,154 INFO L158 Benchmark]: CACSL2BoogieTranslator took 188.95ms. Allocated memory was 134.2MB in the beginning and 199.2MB in the end (delta: 65.0MB). Free memory was 62.4MB in the beginning and 162.5MB in the end (delta: -100.2MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB.
[2024-09-13 08:50:59,154 INFO L158 Benchmark]: Boogie Procedure Inliner took 14.09ms. Allocated memory is still 199.2MB. Free memory was 162.5MB in the beginning and 161.5MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-13 08:50:59,155 INFO L158 Benchmark]: Boogie Preprocessor took 23.28ms. Allocated memory is still 199.2MB. Free memory was 161.5MB in the beginning and 160.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-09-13 08:50:59,157 INFO L158 Benchmark]: RCFGBuilder took 245.11ms. Allocated memory is still 199.2MB. Free memory was 160.4MB in the beginning and 147.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2024-09-13 08:50:59,157 INFO L158 Benchmark]: TraceAbstraction took 5077.39ms. Allocated memory was 199.2MB in the beginning and 239.1MB in the end (delta: 39.8MB). Free memory was 147.9MB in the beginning and 96.8MB in the end (delta: 51.0MB). Peak memory consumption was 89.8MB. Max. memory is 16.1GB.
[2024-09-13 08:50:59,157 INFO L158 Benchmark]: Witness Printer took 69.93ms. Allocated memory is still 239.1MB. Free memory was 96.8MB in the beginning and 92.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2024-09-13 08:50:59,158 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.09ms. Allocated memory is still 134.2MB. Free memory was 102.4MB in the beginning and 102.3MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 188.95ms. Allocated memory was 134.2MB in the beginning and 199.2MB in the end (delta: 65.0MB). Free memory was 62.4MB in the beginning and 162.5MB in the end (delta: -100.2MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 14.09ms. Allocated memory is still 199.2MB. Free memory was 162.5MB in the beginning and 161.5MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 23.28ms. Allocated memory is still 199.2MB. Free memory was 161.5MB in the beginning and 160.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 245.11ms. Allocated memory is still 199.2MB. Free memory was 160.4MB in the beginning and 147.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* TraceAbstraction took 5077.39ms. Allocated memory was 199.2MB in the beginning and 239.1MB in the end (delta: 39.8MB). Free memory was 147.9MB in the beginning and 96.8MB in the end (delta: 51.0MB). Peak memory consumption was 89.8MB. Max. memory is 16.1GB.
* Witness Printer took 69.93ms. Allocated memory is still 239.1MB. Free memory was 96.8MB in the beginning and 92.6MB in the end (delta: 4.2MB). 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: 14]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.8s, OverallIterations: 6, TraceHistogramMax: 22, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 303 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 302 mSDsluCounter, 55 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 33 mSDsCounter, 114 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 344 IncrementalHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 114 mSolverCounterUnsat, 22 mSDtfsCounter, 344 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 341 GetRequests, 177 SyntacticMatches, 2 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2028 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=5, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 258 NumberOfCodeBlocks, 235 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 362 ConstructedInterpolants, 0 QuantifiedInterpolants, 1392 SizeOfPredicates, 7 NumberOfNonLiveVariables, 327 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 14 InterpolantComputations, 3 PerfectInterpolantSequences, 484/1803 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: 23]: Loop Invariant
Derived loop invariant: (((i % 4) == 0) && (50000001 <= SIZE))
- ProcedureContractResult [Line: 20]: Procedure Contract for main
Derived contract for procedure main. Requires: (50000001 <= SIZE) Ensures: (50000001 <= SIZE)
- ProcedureContractResult [Line: 12]: Procedure Contract for __VERIFIER_assert
Derived contract for procedure __VERIFIER_assert. Requires: ((1 <= \old(cond)) && (50000001 <= SIZE)) Ensures: ((1 <= \old(cond)) && (50000001 <= SIZE))
RESULT: Ultimate proved your program to be correct!
[2024-09-13 08:50:59,177 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