./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/drift_tenth.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 803cd42f
Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/drift_tenth.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 cbe9305dfa705c6adeb45241a85cbda41a40d96daaf057706b199b2a64bbcd77
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m
[2024-11-21 23:06:38,717 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-21 23:06:38,775 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-21 23:06:38,779 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-21 23:06:38,780 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-21 23:06:38,805 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-21 23:06:38,805 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-21 23:06:38,807 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-21 23:06:38,807 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-21 23:06:38,808 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-21 23:06:38,808 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-21 23:06:38,808 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-21 23:06:38,808 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-21 23:06:38,809 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-21 23:06:38,809 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-21 23:06:38,809 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-21 23:06:38,809 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-21 23:06:38,810 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-21 23:06:38,810 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-21 23:06:38,811 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-21 23:06:38,811 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-21 23:06:38,811 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-21 23:06:38,812 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-21 23:06:38,812 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-21 23:06:38,812 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-21 23:06:38,812 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-21 23:06:38,813 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-21 23:06:38,813 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-21 23:06:38,813 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-21 23:06:38,813 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-21 23:06:38,814 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-21 23:06:38,814 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-21 23:06:38,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-21 23:06:38,814 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-21 23:06:38,815 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-21 23:06:38,815 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-21 23:06:38,815 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-21 23:06:38,815 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-21 23:06:38,816 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-21 23:06:38,816 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-21 23:06:38,816 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-21 23:06:38,818 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-21 23:06:38,818 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/ultimate/releaseScripts/default/UAutomizer-linux/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cbe9305dfa705c6adeb45241a85cbda41a40d96daaf057706b199b2a64bbcd77
[2024-11-21 23:06:39,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-21 23:06:39,056 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-21 23:06:39,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-21 23:06:39,060 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-21 23:06:39,060 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-21 23:06:39,061 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/drift_tenth.c
[2024-11-21 23:06:40,276 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-21 23:06:40,421 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-21 23:06:40,422 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/drift_tenth.c
[2024-11-21 23:06:40,427 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ff912b33/a482525f6d4f4963af619270a39a8b40/FLAGc007a1299
[2024-11-21 23:06:40,835 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ff912b33/a482525f6d4f4963af619270a39a8b40
[2024-11-21 23:06:40,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-21 23:06:40,839 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-21 23:06:40,840 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-21 23:06:40,841 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-21 23:06:40,845 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-21 23:06:40,846 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:06:40" (1/1) ...
[2024-11-21 23:06:40,847 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27e61c8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:06:40, skipping insertion in model container
[2024-11-21 23:06:40,847 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:06:40" (1/1) ...
[2024-11-21 23:06:40,862 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-21 23:06:41,020 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/drift_tenth.c[348,361]
[2024-11-21 23:06:41,031 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-21 23:06:41,037 INFO L200 MainTranslator]: Completed pre-run
[2024-11-21 23:06:41,046 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/drift_tenth.c[348,361]
[2024-11-21 23:06:41,047 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-21 23:06:41,060 INFO L204 MainTranslator]: Completed translation
[2024-11-21 23:06:41,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:06:41 WrapperNode
[2024-11-21 23:06:41,060 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-21 23:06:41,061 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-21 23:06:41,061 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-21 23:06:41,062 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-21 23:06:41,067 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:06:41" (1/1) ...
[2024-11-21 23:06:41,072 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:06:41" (1/1) ...
[2024-11-21 23:06:41,083 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 30
[2024-11-21 23:06:41,084 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-21 23:06:41,084 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-21 23:06:41,084 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-21 23:06:41,085 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-21 23:06:41,092 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:06:41" (1/1) ...
[2024-11-21 23:06:41,092 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:06:41" (1/1) ...
[2024-11-21 23:06:41,093 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:06:41" (1/1) ...
[2024-11-21 23:06:41,102 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].
[2024-11-21 23:06:41,102 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:06:41" (1/1) ...
[2024-11-21 23:06:41,102 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:06:41" (1/1) ...
[2024-11-21 23:06:41,104 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:06:41" (1/1) ...
[2024-11-21 23:06:41,106 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:06:41" (1/1) ...
[2024-11-21 23:06:41,107 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:06:41" (1/1) ...
[2024-11-21 23:06:41,108 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:06:41" (1/1) ...
[2024-11-21 23:06:41,109 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-21 23:06:41,109 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-21 23:06:41,109 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-21 23:06:41,110 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-21 23:06:41,110 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:06:41" (1/1) ...
[2024-11-21 23:06:41,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-21 23:06:41,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-21 23:06:41,136 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-21 23:06:41,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-21 23:06:41,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-21 23:06:41,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-21 23:06:41,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-21 23:06:41,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-21 23:06:41,234 INFO L238 CfgBuilder]: Building ICFG
[2024-11-21 23:06:41,237 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-21 23:06:41,324 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live.
[2024-11-21 23:06:41,325 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-21 23:06:41,335 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-21 23:06:41,336 INFO L316 CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-21 23:06:41,336 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:06:41 BoogieIcfgContainer
[2024-11-21 23:06:41,336 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-21 23:06:41,338 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-21 23:06:41,338 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-21 23:06:41,341 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-21 23:06:41,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 11:06:40" (1/3) ...
[2024-11-21 23:06:41,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6585c36f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 11:06:41, skipping insertion in model container
[2024-11-21 23:06:41,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:06:41" (2/3) ...
[2024-11-21 23:06:41,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6585c36f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 11:06:41, skipping insertion in model container
[2024-11-21 23:06:41,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:06:41" (3/3) ...
[2024-11-21 23:06:41,344 INFO L112 eAbstractionObserver]: Analyzing ICFG drift_tenth.c
[2024-11-21 23:06:41,360 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-21 23:06:41,360 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-21 23:06:41,413 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-21 23:06:41,418 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@4d86357c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-21 23:06:41,418 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-21 23:06:41,421 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 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)
[2024-11-21 23:06:41,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-21 23:06:41,425 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-21 23:06:41,425 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-21 23:06:41,426 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 23:06:41,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 23:06:41,429 INFO L85 PathProgramCache]: Analyzing trace with hash 889605037, now seen corresponding path program 1 times
[2024-11-21 23:06:41,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 23:06:41,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558215114]
[2024-11-21 23:06:41,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 23:06:41,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 23:06:41,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 23:06:41,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-21 23:06:41,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 23:06:41,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558215114]
[2024-11-21 23:06:41,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558215114] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 23:06:41,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 23:06:41,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 23:06:41,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987305698]
[2024-11-21 23:06:41,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 23:06:41,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 23:06:41,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 23:06:41,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 23:06:41,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 23:06:41,590 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 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) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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)
[2024-11-21 23:06:41,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 23:06:41,613 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions.
[2024-11-21 23:06:41,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-21 23:06:41,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6
[2024-11-21 23:06:41,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 23:06:41,621 INFO L225 Difference]: With dead ends: 22
[2024-11-21 23:06:41,621 INFO L226 Difference]: Without dead ends: 10
[2024-11-21 23:06:41,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 23:06:41,627 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 1 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-21 23:06:41,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 17 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-21 23:06:41,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states.
[2024-11-21 23:06:41,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9.
[2024-11-21 23:06:41,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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)
[2024-11-21 23:06:41,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions.
[2024-11-21 23:06:41,654 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6
[2024-11-21 23:06:41,654 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-21 23:06:41,654 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions.
[2024-11-21 23:06:41,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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)
[2024-11-21 23:06:41,654 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions.
[2024-11-21 23:06:41,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-11-21 23:06:41,654 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-21 23:06:41,655 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-21 23:06:41,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-21 23:06:41,655 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 23:06:41,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 23:06:41,655 INFO L85 PathProgramCache]: Analyzing trace with hash 265180975, now seen corresponding path program 1 times
[2024-11-21 23:06:41,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 23:06:41,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859525573]
[2024-11-21 23:06:41,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 23:06:41,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 23:06:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 23:06:41,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-21 23:06:41,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 23:06:41,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859525573]
[2024-11-21 23:06:41,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859525573] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-21 23:06:41,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477855595]
[2024-11-21 23:06:41,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 23:06:41,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-21 23:06:41,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-21 23:06:41,707 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-21 23:06:41,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-21 23:06:41,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 23:06:41,756 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-21 23:06:41,759 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-21 23:06:41,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-21 23:06:41,820 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-21 23:06:41,851 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-21 23:06:41,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477855595] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-21 23:06:41,852 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-21 23:06:41,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7
[2024-11-21 23:06:41,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061411238]
[2024-11-21 23:06:41,853 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-21 23:06:41,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-21 23:06:41,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 23:06:41,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-21 23:06:41,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2024-11-21 23:06:41,854 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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)
[2024-11-21 23:06:41,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 23:06:41,873 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions.
[2024-11-21 23:06:41,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-21 23:06:41,874 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8
[2024-11-21 23:06:41,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 23:06:41,874 INFO L225 Difference]: With dead ends: 19
[2024-11-21 23:06:41,874 INFO L226 Difference]: Without dead ends: 15
[2024-11-21 23:06:41,875 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2024-11-21 23:06:41,875 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-21 23:06:41,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 22 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-21 23:06:41,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states.
[2024-11-21 23:06:41,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15.
[2024-11-21 23:06:41,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 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)
[2024-11-21 23:06:41,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions.
[2024-11-21 23:06:41,878 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8
[2024-11-21 23:06:41,879 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-21 23:06:41,879 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions.
[2024-11-21 23:06:41,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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)
[2024-11-21 23:06:41,879 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions.
[2024-11-21 23:06:41,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2024-11-21 23:06:41,879 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-21 23:06:41,879 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1]
[2024-11-21 23:06:41,886 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-21 23:06:42,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-21 23:06:42,081 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 23:06:42,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 23:06:42,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1745754443, now seen corresponding path program 2 times
[2024-11-21 23:06:42,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 23:06:42,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898167360]
[2024-11-21 23:06:42,082 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-21 23:06:42,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 23:06:42,104 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-21 23:06:42,104 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-21 23:06:42,217 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-21 23:06:42,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-21 23:06:42,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898167360]
[2024-11-21 23:06:42,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898167360] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-21 23:06:42,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1990371385]
[2024-11-21 23:06:42,218 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-21 23:06:42,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-21 23:06:42,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-21 23:06:42,220 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-21 23:06:42,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-21 23:06:42,262 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-21 23:06:42,263 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-21 23:06:42,265 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-21 23:06:42,266 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-21 23:06:42,301 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-21 23:06:42,303 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-21 23:06:42,372 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-21 23:06:42,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1990371385] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-21 23:06:42,373 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-21 23:06:42,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13
[2024-11-21 23:06:42,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739301668]
[2024-11-21 23:06:42,375 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-21 23:06:42,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-11-21 23:06:42,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-21 23:06:42,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-11-21 23:06:42,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156
[2024-11-21 23:06:42,377 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 13 states have internal predecessors, (27), 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)
[2024-11-21 23:06:42,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 23:06:42,425 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions.
[2024-11-21 23:06:42,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-11-21 23:06:42,426 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 13 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14
[2024-11-21 23:06:42,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 23:06:42,426 INFO L225 Difference]: With dead ends: 31
[2024-11-21 23:06:42,427 INFO L226 Difference]: Without dead ends: 27
[2024-11-21 23:06:42,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156
[2024-11-21 23:06:42,430 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-21 23:06:42,430 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 14 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-21 23:06:42,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states.
[2024-11-21 23:06:42,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27.
[2024-11-21 23:06:42,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 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)
[2024-11-21 23:06:42,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions.
[2024-11-21 23:06:42,437 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 14
[2024-11-21 23:06:42,437 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-21 23:06:42,437 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions.
[2024-11-21 23:06:42,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.076923076923077) internal successors, (27), 13 states have internal predecessors, (27), 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)
[2024-11-21 23:06:42,437 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions.
[2024-11-21 23:06:42,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2024-11-21 23:06:42,438 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-21 23:06:42,438 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1]
[2024-11-21 23:06:42,446 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-21 23:06:42,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2
[2024-11-21 23:06:42,639 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 23:06:42,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 23:06:42,640 INFO L85 PathProgramCache]: Analyzing trace with hash -95702975, now seen corresponding path program 3 times
[2024-11-21 23:06:42,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-21 23:06:42,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409277909]
[2024-11-21 23:06:42,640 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-21 23:06:42,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-21 23:06:42,658 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s)
[2024-11-21 23:06:42,658 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat
[2024-11-21 23:06:42,658 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-21 23:06:42,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-21 23:06:42,688 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-21 23:06:42,690 INFO L325 BasicCegarLoop]: Counterexample is feasible
[2024-11-21 23:06:42,691 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-21 23:06:42,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-21 23:06:42,695 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1]
[2024-11-21 23:06:42,715 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-21 23:06:42,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 11:06:42 BoogieIcfgContainer
[2024-11-21 23:06:42,719 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-21 23:06:42,719 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-21 23:06:42,719 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-21 23:06:42,720 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-21 23:06:42,720 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:06:41" (3/4) ...
[2024-11-21 23:06:42,722 INFO L145 WitnessPrinter]: No result that supports witness generation found
[2024-11-21 23:06:42,723 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-21 23:06:42,726 INFO L158 Benchmark]: Toolchain (without parser) took 1884.77ms. Allocated memory was 138.4MB in the beginning and 192.9MB in the end (delta: 54.5MB). Free memory was 68.3MB in the beginning and 127.6MB in the end (delta: -59.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-21 23:06:42,726 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 138.4MB. Free memory is still 89.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-21 23:06:42,727 INFO L158 Benchmark]: CACSL2BoogieTranslator took 220.15ms. Allocated memory was 138.4MB in the beginning and 192.9MB in the end (delta: 54.5MB). Free memory was 68.1MB in the beginning and 162.1MB in the end (delta: -94.1MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB.
[2024-11-21 23:06:42,727 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.68ms. Allocated memory is still 192.9MB. Free memory was 162.1MB in the beginning and 161.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-21 23:06:42,727 INFO L158 Benchmark]: Boogie Preprocessor took 24.47ms. Allocated memory is still 192.9MB. Free memory was 161.1MB in the beginning and 159.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-21 23:06:42,727 INFO L158 Benchmark]: RCFGBuilder took 226.91ms. Allocated memory is still 192.9MB. Free memory was 159.0MB in the beginning and 148.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2024-11-21 23:06:42,728 INFO L158 Benchmark]: TraceAbstraction took 1380.87ms. Allocated memory is still 192.9MB. Free memory was 147.5MB in the beginning and 127.6MB in the end (delta: 19.8MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB.
[2024-11-21 23:06:42,728 INFO L158 Benchmark]: Witness Printer took 3.74ms. Allocated memory is still 192.9MB. Free memory is still 127.6MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-21 23:06:42,729 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.16ms. Allocated memory is still 138.4MB. Free memory is still 89.2MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 220.15ms. Allocated memory was 138.4MB in the beginning and 192.9MB in the end (delta: 54.5MB). Free memory was 68.1MB in the beginning and 162.1MB in the end (delta: -94.1MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 22.68ms. Allocated memory is still 192.9MB. Free memory was 162.1MB in the beginning and 161.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 24.47ms. Allocated memory is still 192.9MB. Free memory was 161.1MB in the beginning and 159.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 226.91ms. Allocated memory is still 192.9MB. Free memory was 159.0MB in the beginning and 148.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* TraceAbstraction took 1380.87ms. Allocated memory is still 192.9MB. Free memory was 147.5MB in the beginning and 127.6MB in the end (delta: 19.8MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB.
* Witness Printer took 3.74ms. Allocated memory is still 192.9MB. Free memory is still 127.6MB. There was no memory consumed. 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
- UnprovableResult [Line: 6]: Unable to prove that a call to reach_error is unreachable
Unable to prove that a call to reach_error is unreachable
Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 17, overapproximation of someBinaryArithmeticFLOAToperation at line 15.
Possible FailurePath:
[L10] float tick = 1.f / 10.f;
[L11] float time = 0.f;
[L12] int i;
[L14] i = 0
VAL [i=0]
[L14] COND TRUE i < 10
[L15] time += tick
VAL [i=0]
[L14] i++
VAL [i=1]
[L14] COND TRUE i < 10
[L15] time += tick
VAL [i=1]
[L14] i++
VAL [i=2]
[L14] COND TRUE i < 10
[L15] time += tick
VAL [i=2]
[L14] i++
VAL [i=3]
[L14] COND TRUE i < 10
[L15] time += tick
VAL [i=3]
[L14] i++
VAL [i=4]
[L14] COND TRUE i < 10
[L15] time += tick
VAL [i=4]
[L14] i++
VAL [i=5]
[L14] COND TRUE i < 10
[L15] time += tick
VAL [i=5]
[L14] i++
VAL [i=6]
[L14] COND TRUE i < 10
[L15] time += tick
VAL [i=6]
[L14] i++
VAL [i=7]
[L14] COND TRUE i < 10
[L15] time += tick
VAL [i=7]
[L14] i++
VAL [i=8]
[L14] COND TRUE i < 10
[L15] time += tick
VAL [i=8]
[L14] i++
VAL [i=9]
[L14] COND TRUE i < 10
[L15] time += tick
VAL [i=9]
[L14] i++
VAL [i=10]
[L14] COND FALSE !(i < 10)
[L17] CALL __VERIFIER_assert(time != 1.0)
[L6] COND TRUE !(cond)
[L6] reach_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 53 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 22 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=3, InterpolantAutomatonStates: 21, 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 65 ConstructedInterpolants, 0 QuantifiedInterpolants, 139 SizeOfPredicates, 0 NumberOfNonLiveVariables, 81 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 0/51 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
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2024-11-21 23:06:42,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/drift_tenth.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 cbe9305dfa705c6adeb45241a85cbda41a40d96daaf057706b199b2a64bbcd77
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m
[2024-11-21 23:06:44,558 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-21 23:06:44,621 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-21 23:06:44,629 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-21 23:06:44,631 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-21 23:06:44,657 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-21 23:06:44,661 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-21 23:06:44,661 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-21 23:06:44,662 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-21 23:06:44,662 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-21 23:06:44,663 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-21 23:06:44,663 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-21 23:06:44,664 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-21 23:06:44,664 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-21 23:06:44,665 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-21 23:06:44,665 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-21 23:06:44,666 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-21 23:06:44,666 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-21 23:06:44,666 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-21 23:06:44,666 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-21 23:06:44,667 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-21 23:06:44,670 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-21 23:06:44,670 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-21 23:06:44,670 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-21 23:06:44,670 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-11-21 23:06:44,670 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-21 23:06:44,670 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-21 23:06:44,670 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-21 23:06:44,671 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-21 23:06:44,671 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-21 23:06:44,671 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-21 23:06:44,671 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-21 23:06:44,671 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-21 23:06:44,671 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-21 23:06:44,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-21 23:06:44,672 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-21 23:06:44,672 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-21 23:06:44,672 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-21 23:06:44,672 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF
[2024-11-21 23:06:44,672 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-21 23:06:44,673 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-21 23:06:44,674 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-21 23:06:44,675 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-21 23:06:44,675 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-21 23:06:44,675 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/ultimate/releaseScripts/default/UAutomizer-linux/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cbe9305dfa705c6adeb45241a85cbda41a40d96daaf057706b199b2a64bbcd77
[2024-11-21 23:06:44,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-21 23:06:44,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-21 23:06:44,944 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-21 23:06:44,945 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-21 23:06:44,945 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-21 23:06:44,946 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/drift_tenth.c
[2024-11-21 23:06:46,183 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-21 23:06:46,343 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-21 23:06:46,344 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/drift_tenth.c
[2024-11-21 23:06:46,353 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d347e102a/bc0eb5f73e114fd89c26698b252a2a5b/FLAG5bc8ab9ac
[2024-11-21 23:06:46,368 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d347e102a/bc0eb5f73e114fd89c26698b252a2a5b
[2024-11-21 23:06:46,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-21 23:06:46,371 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-21 23:06:46,374 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-21 23:06:46,374 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-21 23:06:46,379 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-21 23:06:46,380 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:06:46" (1/1) ...
[2024-11-21 23:06:46,380 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@556e63a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:06:46, skipping insertion in model container
[2024-11-21 23:06:46,381 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:06:46" (1/1) ...
[2024-11-21 23:06:46,396 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-21 23:06:46,533 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/drift_tenth.c[348,361]
[2024-11-21 23:06:46,547 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-21 23:06:46,559 INFO L200 MainTranslator]: Completed pre-run
[2024-11-21 23:06:46,570 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/drift_tenth.c[348,361]
[2024-11-21 23:06:46,573 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-21 23:06:46,588 INFO L204 MainTranslator]: Completed translation
[2024-11-21 23:06:46,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:06:46 WrapperNode
[2024-11-21 23:06:46,589 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-21 23:06:46,590 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-21 23:06:46,590 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-21 23:06:46,590 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-21 23:06:46,596 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:06:46" (1/1) ...
[2024-11-21 23:06:46,603 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:06:46" (1/1) ...
[2024-11-21 23:06:46,618 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 31
[2024-11-21 23:06:46,618 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-21 23:06:46,619 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-21 23:06:46,620 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-21 23:06:46,620 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-21 23:06:46,627 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:06:46" (1/1) ...
[2024-11-21 23:06:46,628 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:06:46" (1/1) ...
[2024-11-21 23:06:46,630 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:06:46" (1/1) ...
[2024-11-21 23:06:46,653 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].
[2024-11-21 23:06:46,653 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:06:46" (1/1) ...
[2024-11-21 23:06:46,653 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:06:46" (1/1) ...
[2024-11-21 23:06:46,658 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:06:46" (1/1) ...
[2024-11-21 23:06:46,662 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:06:46" (1/1) ...
[2024-11-21 23:06:46,663 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:06:46" (1/1) ...
[2024-11-21 23:06:46,664 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:06:46" (1/1) ...
[2024-11-21 23:06:46,666 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-21 23:06:46,668 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-21 23:06:46,669 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-21 23:06:46,669 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-21 23:06:46,670 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:06:46" (1/1) ...
[2024-11-21 23:06:46,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-21 23:06:46,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-21 23:06:46,699 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-21 23:06:46,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-21 23:06:46,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-21 23:06:46,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-21 23:06:46,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-21 23:06:46,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-21 23:06:46,795 INFO L238 CfgBuilder]: Building ICFG
[2024-11-21 23:06:46,798 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-21 23:06:47,059 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live.
[2024-11-21 23:06:47,060 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-21 23:06:47,069 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-21 23:06:47,069 INFO L316 CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-21 23:06:47,069 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:06:47 BoogieIcfgContainer
[2024-11-21 23:06:47,069 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-21 23:06:47,072 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-21 23:06:47,073 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-21 23:06:47,075 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-21 23:06:47,075 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 11:06:46" (1/3) ...
[2024-11-21 23:06:47,076 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29aaba4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 11:06:47, skipping insertion in model container
[2024-11-21 23:06:47,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:06:46" (2/3) ...
[2024-11-21 23:06:47,076 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29aaba4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 11:06:47, skipping insertion in model container
[2024-11-21 23:06:47,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:06:47" (3/3) ...
[2024-11-21 23:06:47,078 INFO L112 eAbstractionObserver]: Analyzing ICFG drift_tenth.c
[2024-11-21 23:06:47,091 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-21 23:06:47,092 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-21 23:06:47,144 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-21 23:06:47,149 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@530e5fa7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-21 23:06:47,150 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-21 23:06:47,154 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 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)
[2024-11-21 23:06:47,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-21 23:06:47,159 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-21 23:06:47,159 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-21 23:06:47,159 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 23:06:47,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 23:06:47,165 INFO L85 PathProgramCache]: Analyzing trace with hash 889605037, now seen corresponding path program 1 times
[2024-11-21 23:06:47,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-21 23:06:47,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1762796742]
[2024-11-21 23:06:47,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 23:06:47,175 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-21 23:06:47,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-21 23:06:47,178 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-21 23:06:47,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2024-11-21 23:06:47,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 23:06:47,248 INFO L255 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-21 23:06:47,250 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-21 23:06:47,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-21 23:06:47,285 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-21 23:06:47,285 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-21 23:06:47,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1762796742]
[2024-11-21 23:06:47,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1762796742] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-21 23:06:47,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-21 23:06:47,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-21 23:06:47,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749696098]
[2024-11-21 23:06:47,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-21 23:06:47,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-21 23:06:47,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-21 23:06:47,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-21 23:06:47,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-21 23:06:47,311 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 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) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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)
[2024-11-21 23:06:47,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 23:06:47,425 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions.
[2024-11-21 23:06:47,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-21 23:06:47,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6
[2024-11-21 23:06:47,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 23:06:47,442 INFO L225 Difference]: With dead ends: 22
[2024-11-21 23:06:47,443 INFO L226 Difference]: Without dead ends: 10
[2024-11-21 23:06:47,445 INFO L431 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
[2024-11-21 23:06:47,449 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 1 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-21 23:06:47,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 17 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-21 23:06:47,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states.
[2024-11-21 23:06:47,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9.
[2024-11-21 23:06:47,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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)
[2024-11-21 23:06:47,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions.
[2024-11-21 23:06:47,471 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6
[2024-11-21 23:06:47,471 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-21 23:06:47,472 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions.
[2024-11-21 23:06:47,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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)
[2024-11-21 23:06:47,472 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions.
[2024-11-21 23:06:47,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-11-21 23:06:47,472 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-21 23:06:47,472 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-21 23:06:47,476 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0
[2024-11-21 23:06:47,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-21 23:06:47,673 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 23:06:47,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 23:06:47,674 INFO L85 PathProgramCache]: Analyzing trace with hash 265180975, now seen corresponding path program 1 times
[2024-11-21 23:06:47,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-21 23:06:47,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [893952939]
[2024-11-21 23:06:47,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-21 23:06:47,674 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-21 23:06:47,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-21 23:06:47,676 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-21 23:06:47,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2024-11-21 23:06:47,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-21 23:06:47,734 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-21 23:06:47,735 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-21 23:06:47,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-21 23:06:47,767 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-21 23:06:47,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-21 23:06:47,806 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2024-11-21 23:06:47,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [893952939]
[2024-11-21 23:06:47,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [893952939] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-21 23:06:47,807 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-21 23:06:47,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6
[2024-11-21 23:06:47,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655500500]
[2024-11-21 23:06:47,807 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-21 23:06:47,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-21 23:06:47,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2024-11-21 23:06:47,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-21 23:06:47,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-11-21 23:06:47,809 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 23:06:47,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-21 23:06:47,913 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions.
[2024-11-21 23:06:47,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-21 23:06:47,915 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8
[2024-11-21 23:06:47,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-21 23:06:47,915 INFO L225 Difference]: With dead ends: 19
[2024-11-21 23:06:47,915 INFO L226 Difference]: Without dead ends: 15
[2024-11-21 23:06:47,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42
[2024-11-21 23:06:47,916 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 3 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-21 23:06:47,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 14 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-21 23:06:47,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states.
[2024-11-21 23:06:47,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15.
[2024-11-21 23:06:47,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 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)
[2024-11-21 23:06:47,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions.
[2024-11-21 23:06:47,921 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8
[2024-11-21 23:06:47,921 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-21 23:06:47,921 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions.
[2024-11-21 23:06:47,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-21 23:06:47,921 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions.
[2024-11-21 23:06:47,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2024-11-21 23:06:47,922 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-21 23:06:47,922 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1]
[2024-11-21 23:06:47,925 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0
[2024-11-21 23:06:48,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-21 23:06:48,122 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-21 23:06:48,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-21 23:06:48,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1745754443, now seen corresponding path program 2 times
[2024-11-21 23:06:48,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-11-21 23:06:48,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2007730250]
[2024-11-21 23:06:48,123 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-21 23:06:48,124 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-11-21 23:06:48,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-11-21 23:06:48,125 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-11-21 23:06:48,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2024-11-21 23:06:48,215 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-21 23:06:48,216 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-21 23:06:48,219 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-21 23:06:48,220 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-21 23:06:54,275 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-21 23:06:54,275 INFO L311 TraceCheckSpWp]: Computing backward predicates...