./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound100.c --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for ERROR reachability
Using default analysis
Version 3061b6dc
Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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/nla-digbench-scaling/geo3-ll_valuebound100.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 dd2c24b3e442770905ace3d5178f7b94d29cd68a7eab246761229ae0bb40880c
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m
[2024-11-18 13:43:20,677 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-18 13:43:20,728 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-18 13:43:20,734 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-18 13:43:20,735 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-18 13:43:20,756 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-18 13:43:20,757 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-18 13:43:20,757 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-18 13:43:20,758 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-18 13:43:20,759 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-18 13:43:20,759 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-18 13:43:20,760 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-18 13:43:20,760 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-18 13:43:20,760 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-18 13:43:20,760 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-18 13:43:20,762 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-18 13:43:20,762 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-18 13:43:20,762 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-18 13:43:20,762 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-18 13:43:20,762 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-18 13:43:20,763 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-18 13:43:20,765 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-18 13:43:20,766 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-18 13:43:20,766 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-18 13:43:20,766 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-18 13:43:20,766 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-18 13:43:20,766 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-18 13:43:20,766 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-18 13:43:20,767 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-18 13:43:20,767 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-18 13:43:20,767 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-18 13:43:20,767 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-18 13:43:20,767 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-18 13:43:20,767 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-18 13:43:20,767 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-18 13:43:20,768 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-18 13:43:20,768 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-18 13:43:20,768 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-18 13:43:20,768 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-18 13:43:20,768 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-18 13:43:20,768 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-18 13:43:20,769 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-18 13:43:20,769 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 -> dd2c24b3e442770905ace3d5178f7b94d29cd68a7eab246761229ae0bb40880c
[2024-11-18 13:43:20,943 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-18 13:43:20,960 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-18 13:43:20,962 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-18 13:43:20,964 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-18 13:43:20,964 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-18 13:43:20,965 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound100.c
[2024-11-18 13:43:22,139 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-18 13:43:22,298 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-18 13:43:22,298 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound100.c
[2024-11-18 13:43:22,325 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e562427d/b0b179a654704493aa253c90bd3dd82f/FLAG1a8cf9231
[2024-11-18 13:43:22,339 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e562427d/b0b179a654704493aa253c90bd3dd82f
[2024-11-18 13:43:22,341 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-18 13:43:22,342 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-18 13:43:22,343 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-18 13:43:22,343 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-18 13:43:22,349 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-18 13:43:22,350 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:43:22" (1/1) ...
[2024-11-18 13:43:22,350 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@103d31b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:22, skipping insertion in model container
[2024-11-18 13:43:22,350 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:43:22" (1/1) ...
[2024-11-18 13:43:22,382 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-18 13:43:22,530 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/nla-digbench-scaling/geo3-ll_valuebound100.c[524,537]
[2024-11-18 13:43:22,546 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-18 13:43:22,555 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-18 13:43:22,565 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/nla-digbench-scaling/geo3-ll_valuebound100.c[524,537]
[2024-11-18 13:43:22,572 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-18 13:43:22,585 INFO  L204         MainTranslator]: Completed translation
[2024-11-18 13:43:22,585 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:22 WrapperNode
[2024-11-18 13:43:22,586 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-18 13:43:22,586 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-18 13:43:22,587 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-18 13:43:22,587 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-18 13:43:22,593 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:22" (1/1) ...
[2024-11-18 13:43:22,597 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:22" (1/1) ...
[2024-11-18 13:43:22,609 INFO  L138                Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 48
[2024-11-18 13:43:22,610 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-18 13:43:22,610 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-18 13:43:22,610 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-18 13:43:22,610 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-18 13:43:22,617 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:22" (1/1) ...
[2024-11-18 13:43:22,618 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:22" (1/1) ...
[2024-11-18 13:43:22,619 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:22" (1/1) ...
[2024-11-18 13:43:22,626 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].
[2024-11-18 13:43:22,626 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:22" (1/1) ...
[2024-11-18 13:43:22,627 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:22" (1/1) ...
[2024-11-18 13:43:22,628 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:22" (1/1) ...
[2024-11-18 13:43:22,630 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:22" (1/1) ...
[2024-11-18 13:43:22,631 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:22" (1/1) ...
[2024-11-18 13:43:22,632 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:22" (1/1) ...
[2024-11-18 13:43:22,633 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-18 13:43:22,634 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-18 13:43:22,634 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-18 13:43:22,634 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-18 13:43:22,635 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:22" (1/1) ...
[2024-11-18 13:43:22,640 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-18 13:43:22,650 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 13:43:22,661 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)
[2024-11-18 13:43:22,664 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
[2024-11-18 13:43:22,697 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-18 13:43:22,697 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-18 13:43:22,697 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-18 13:43:22,697 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-18 13:43:22,697 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-18 13:43:22,698 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-18 13:43:22,698 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-11-18 13:43:22,699 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-11-18 13:43:22,744 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-18 13:43:22,750 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-18 13:43:22,892 INFO  L?                        ?]: Removed 8 outVars from TransFormulas that were not future-live.
[2024-11-18 13:43:22,892 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-18 13:43:22,904 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-18 13:43:22,904 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-18 13:43:22,904 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:43:22 BoogieIcfgContainer
[2024-11-18 13:43:22,904 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-18 13:43:22,906 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-18 13:43:22,907 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-18 13:43:22,910 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-18 13:43:22,910 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:43:22" (1/3) ...
[2024-11-18 13:43:22,911 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6890f6fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:43:22, skipping insertion in model container
[2024-11-18 13:43:22,911 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:22" (2/3) ...
[2024-11-18 13:43:22,911 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6890f6fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:43:22, skipping insertion in model container
[2024-11-18 13:43:22,912 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:43:22" (3/3) ...
[2024-11-18 13:43:22,913 INFO  L112   eAbstractionObserver]: Analyzing ICFG geo3-ll_valuebound100.c
[2024-11-18 13:43:22,926 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-18 13:43:22,927 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-18 13:43:22,981 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-18 13:43:22,986 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;@225b5ac2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-18 13:43:22,986 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-18 13:43:22,989 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 26 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2024-11-18 13:43:22,994 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2024-11-18 13:43:22,994 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 13:43:22,994 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 13:43:22,995 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 13:43:22,999 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 13:43:22,999 INFO  L85        PathProgramCache]: Analyzing trace with hash -1024559358, now seen corresponding path program 1 times
[2024-11-18 13:43:23,005 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 13:43:23,006 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353216615]
[2024-11-18 13:43:23,006 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 13:43:23,006 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 13:43:23,090 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 13:43:23,143 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2024-11-18 13:43:23,143 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 13:43:23,143 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353216615]
[2024-11-18 13:43:23,144 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353216615] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 13:43:23,144 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975724865]
[2024-11-18 13:43:23,145 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 13:43:23,145 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 13:43:23,145 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 13:43:23,147 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)
[2024-11-18 13:43:23,148 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-18 13:43:23,193 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 13:43:23,195 INFO  L255         TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-18 13:43:23,198 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 13:43:23,210 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2024-11-18 13:43:23,211 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-18 13:43:23,211 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975724865] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 13:43:23,211 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-18 13:43:23,211 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-18 13:43:23,213 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474173541]
[2024-11-18 13:43:23,213 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 13:43:23,216 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-18 13:43:23,217 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 13:43:23,234 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-18 13:43:23,235 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-18 13:43:23,236 INFO  L87              Difference]: Start difference. First operand  has 26 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand  has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2024-11-18 13:43:23,249 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 13:43:23,249 INFO  L93              Difference]: Finished difference Result 49 states and 67 transitions.
[2024-11-18 13:43:23,249 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-18 13:43:23,250 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25
[2024-11-18 13:43:23,250 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 13:43:23,255 INFO  L225             Difference]: With dead ends: 49
[2024-11-18 13:43:23,255 INFO  L226             Difference]: Without dead ends: 22
[2024-11-18 13:43:23,258 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-18 13:43:23,260 INFO  L432           NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 13:43:23,260 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 13:43:23,272 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2024-11-18 13:43:23,281 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22.
[2024-11-18 13:43:23,282 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 22 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-11-18 13:43:23,283 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions.
[2024-11-18 13:43:23,284 INFO  L78                 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 25
[2024-11-18 13:43:23,284 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 13:43:23,284 INFO  L471      AbstractCegarLoop]: Abstraction has 22 states and 25 transitions.
[2024-11-18 13:43:23,284 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3)
[2024-11-18 13:43:23,284 INFO  L276                IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions.
[2024-11-18 13:43:23,285 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2024-11-18 13:43:23,285 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 13:43:23,285 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 13:43:23,297 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-18 13:43:23,486 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2024-11-18 13:43:23,486 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 13:43:23,487 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 13:43:23,487 INFO  L85        PathProgramCache]: Analyzing trace with hash -1201662840, now seen corresponding path program 1 times
[2024-11-18 13:43:23,487 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 13:43:23,487 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490274088]
[2024-11-18 13:43:23,487 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 13:43:23,487 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 13:43:23,519 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-18 13:43:23,521 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [915107641]
[2024-11-18 13:43:23,521 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 13:43:23,521 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 13:43:23,521 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 13:43:23,522 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)
[2024-11-18 13:43:23,523 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-18 13:43:23,563 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 13:43:23,564 INFO  L255         TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 19 conjuncts are in the unsatisfiable core
[2024-11-18 13:43:23,568 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 13:43:23,844 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-18 13:43:23,845 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-18 13:43:23,926 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-11-18 13:43:23,926 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 13:43:23,926 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490274088]
[2024-11-18 13:43:23,927 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-18 13:43:23,927 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915107641]
[2024-11-18 13:43:23,927 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [915107641] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-18 13:43:23,927 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-18 13:43:23,927 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10
[2024-11-18 13:43:23,927 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980684186]
[2024-11-18 13:43:23,927 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 13:43:23,928 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-18 13:43:23,928 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 13:43:23,929 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-18 13:43:23,929 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2024-11-18 13:43:23,929 INFO  L87              Difference]: Start difference. First operand 22 states and 25 transitions. Second operand  has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2024-11-18 13:43:27,971 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2024-11-18 13:43:27,984 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 13:43:27,984 INFO  L93              Difference]: Finished difference Result 32 states and 36 transitions.
[2024-11-18 13:43:27,985 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-18 13:43:27,985 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25
[2024-11-18 13:43:27,985 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 13:43:27,986 INFO  L225             Difference]: With dead ends: 32
[2024-11-18 13:43:27,986 INFO  L226             Difference]: Without dead ends: 29
[2024-11-18 13:43:27,987 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2024-11-18 13:43:27,988 INFO  L432           NwaCegarLoop]: 21 mSDtfsCounter, 4 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time
[2024-11-18 13:43:27,989 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 80 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time]
[2024-11-18 13:43:27,989 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 29 states.
[2024-11-18 13:43:27,995 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29.
[2024-11-18 13:43:27,997 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 29 states, 19 states have (on average 1.105263157894737) internal successors, (21), 20 states have internal predecessors, (21), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2024-11-18 13:43:27,997 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions.
[2024-11-18 13:43:27,998 INFO  L78                 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 25
[2024-11-18 13:43:27,999 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 13:43:27,999 INFO  L471      AbstractCegarLoop]: Abstraction has 29 states and 32 transitions.
[2024-11-18 13:43:27,999 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2024-11-18 13:43:28,000 INFO  L276                IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions.
[2024-11-18 13:43:28,000 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2024-11-18 13:43:28,001 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 13:43:28,001 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 13:43:28,013 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-18 13:43:28,202 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,SelfDestructingSolverStorable1
[2024-11-18 13:43:28,202 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 13:43:28,203 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 13:43:28,203 INFO  L85        PathProgramCache]: Analyzing trace with hash -202357475, now seen corresponding path program 1 times
[2024-11-18 13:43:28,204 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 13:43:28,204 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861987459]
[2024-11-18 13:43:28,204 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 13:43:28,204 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 13:43:28,233 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-18 13:43:28,235 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1943354632]
[2024-11-18 13:43:28,235 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 13:43:28,236 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 13:43:28,236 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 13:43:28,237 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-18 13:43:28,238 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-18 13:43:28,309 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 13:43:28,310 INFO  L255         TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 28 conjuncts are in the unsatisfiable core
[2024-11-18 13:43:28,312 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 13:43:28,564 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-11-18 13:43:28,564 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-18 13:43:41,083 WARN  L286               SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 15 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-11-18 13:43:49,186 WARN  L873   $PredicateComparison]: unable to prove that (or (= (mod (+ (* 18446744073709551615 |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* |c_ULTIMATE.start_main_~y~0#1| 18446744073709551615 |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~az~0#1|)) 18446744073709551616) 0) (not (= (mod (+ (* 18446744073709551615 |c_ULTIMATE.start_main_~x~0#1|) |c_ULTIMATE.start_main_~a~0#1| (* |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_main_~z~0#1|) (* |c_ULTIMATE.start_main_~y~0#1| 18446744073709551615 |c_ULTIMATE.start_main_~az~0#1|)) 18446744073709551616) 0))) is different from true
[2024-11-18 13:43:57,644 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 2 not checked.
[2024-11-18 13:43:57,644 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 13:43:57,644 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861987459]
[2024-11-18 13:43:57,645 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-18 13:43:57,645 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943354632]
[2024-11-18 13:43:57,645 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1943354632] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-18 13:43:57,645 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-18 13:43:57,645 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 16
[2024-11-18 13:43:57,646 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451765379]
[2024-11-18 13:43:57,646 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-18 13:43:57,646 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2024-11-18 13:43:57,647 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 13:43:57,647 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2024-11-18 13:43:57,648 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=170, Unknown=2, NotChecked=26, Total=240
[2024-11-18 13:43:57,649 INFO  L87              Difference]: Start difference. First operand 29 states and 32 transitions. Second operand  has 16 states, 16 states have (on average 1.75) internal successors, (28), 14 states have internal predecessors, (28), 7 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8)
[2024-11-18 13:44:06,166 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2024-11-18 13:44:18,251 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2024-11-18 13:44:22,262 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2024-11-18 13:44:26,267 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2024-11-18 13:44:30,273 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2024-11-18 13:44:34,281 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2024-11-18 13:44:38,304 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []
[2024-11-18 13:44:38,307 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 13:44:38,308 INFO  L93              Difference]: Finished difference Result 45 states and 52 transitions.
[2024-11-18 13:44:38,308 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2024-11-18 13:44:38,308 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 1.75) internal successors, (28), 14 states have internal predecessors, (28), 7 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 32
[2024-11-18 13:44:38,308 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 13:44:38,310 INFO  L225             Difference]: With dead ends: 45
[2024-11-18 13:44:38,310 INFO  L226             Difference]: Without dead ends: 40
[2024-11-18 13:44:38,311 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 46 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 20.7s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=4, NotChecked=32, Total=342
[2024-11-18 13:44:38,311 INFO  L432           NwaCegarLoop]: 17 mSDtfsCounter, 19 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 13 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 45 IncrementalHoareTripleChecker+Unchecked, 28.4s IncrementalHoareTripleChecker+Time
[2024-11-18 13:44:38,311 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 165 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 140 Invalid, 7 Unknown, 45 Unchecked, 28.4s Time]
[2024-11-18 13:44:38,312 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 40 states.
[2024-11-18 13:44:38,318 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40.
[2024-11-18 13:44:38,318 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 40 states, 27 states have (on average 1.037037037037037) internal successors, (28), 28 states have internal predecessors, (28), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8)
[2024-11-18 13:44:38,319 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions.
[2024-11-18 13:44:38,319 INFO  L78                 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 32
[2024-11-18 13:44:38,319 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 13:44:38,319 INFO  L471      AbstractCegarLoop]: Abstraction has 40 states and 44 transitions.
[2024-11-18 13:44:38,320 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 1.75) internal successors, (28), 14 states have internal predecessors, (28), 7 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8)
[2024-11-18 13:44:38,320 INFO  L276                IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions.
[2024-11-18 13:44:38,320 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 54
[2024-11-18 13:44:38,321 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 13:44:38,321 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 13:44:38,327 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-18 13:44:38,521 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 13:44:38,522 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 13:44:38,522 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 13:44:38,522 INFO  L85        PathProgramCache]: Analyzing trace with hash 1917692232, now seen corresponding path program 2 times
[2024-11-18 13:44:38,522 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 13:44:38,522 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429443174]
[2024-11-18 13:44:38,522 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-18 13:44:38,523 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 13:44:38,587 INFO  L227   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-18 13:44:38,587 INFO  L228   tOrderPrioritization]: Conjunction of SSA is unknown
[2024-11-18 13:44:38,592 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [13225382]
[2024-11-18 13:44:38,592 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-18 13:44:38,592 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 13:44:38,592 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 13:44:38,593 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-18 13:44:38,609 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-18 13:44:38,760 INFO  L227   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-18 13:44:38,760 INFO  L228   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-18 13:44:38,761 INFO  L255         TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 40 conjuncts are in the unsatisfiable core
[2024-11-18 13:44:38,764 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 13:44:39,288 INFO  L134       CoverageAnalysis]: Checked inductivity of 70 backedges. 7 proven. 42 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2024-11-18 13:44:39,288 INFO  L311         TraceCheckSpWp]: Computing backward predicates...