./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-atomic/read_write_lock-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 023d838f 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/pthread-atomic/read_write_lock-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3e2f466b16db44ce2fec1aabf9e70b4ab734ef2801c32e66d10c5bcbcceb5301 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:05:14,356 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:05:14,434 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 22:05:14,440 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:05:14,440 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:05:14,472 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:05:14,473 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:05:14,473 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:05:14,474 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:05:14,474 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:05:14,475 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 22:05:14,475 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 22:05:14,475 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:05:14,476 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:05:14,480 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:05:14,481 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:05:14,482 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 22:05:14,482 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:05:14,482 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:05:14,483 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:05:14,483 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:05:14,484 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 22:05:14,484 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 22:05:14,485 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 22:05:14,485 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:05:14,485 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 22:05:14,485 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:05:14,486 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:05:14,486 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:05:14,486 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:05:14,486 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:05:14,486 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:05:14,487 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 22:05:14,487 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 22:05:14,488 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:05:14,489 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:05:14,489 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 22:05:14,489 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 22:05:14,490 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:05:14,490 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 22:05:14,490 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 22:05:14,491 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 22:05:14,491 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 22:05:14,491 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 22:05:14,492 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e2f466b16db44ce2fec1aabf9e70b4ab734ef2801c32e66d10c5bcbcceb5301 [2024-11-10 22:05:14,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:05:14,742 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:05:14,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:05:14,749 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:05:14,750 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:05:14,751 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/read_write_lock-2.i [2024-11-10 22:05:16,260 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:05:16,496 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:05:16,497 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/read_write_lock-2.i [2024-11-10 22:05:16,522 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a8b327b9/758900894b2645db8a976cd63eac9e1b/FLAGe0d6e32a7 [2024-11-10 22:05:16,828 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a8b327b9/758900894b2645db8a976cd63eac9e1b [2024-11-10 22:05:16,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:05:16,831 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:05:16,832 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:05:16,833 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:05:16,837 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:05:16,837 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:05:16" (1/1) ... [2024-11-10 22:05:16,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38e4138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:05:16, skipping insertion in model container [2024-11-10 22:05:16,838 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:05:16" (1/1) ... [2024-11-10 22:05:16,887 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:05:17,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:05:17,267 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:05:17,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:05:17,355 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:05:17,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:05:17 WrapperNode [2024-11-10 22:05:17,356 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:05:17,357 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:05:17,357 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:05:17,358 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:05:17,365 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:05:17" (1/1) ... [2024-11-10 22:05:17,381 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:05:17" (1/1) ... [2024-11-10 22:05:17,407 INFO L138 Inliner]: procedures = 172, calls = 31, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 100 [2024-11-10 22:05:17,409 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:05:17,409 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:05:17,410 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:05:17,410 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:05:17,419 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:05:17" (1/1) ... [2024-11-10 22:05:17,420 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:05:17" (1/1) ... [2024-11-10 22:05:17,424 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:05:17" (1/1) ... [2024-11-10 22:05:17,446 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]. [2024-11-10 22:05:17,447 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:05:17" (1/1) ... [2024-11-10 22:05:17,447 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:05:17" (1/1) ... [2024-11-10 22:05:17,455 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:05:17" (1/1) ... [2024-11-10 22:05:17,456 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:05:17" (1/1) ... [2024-11-10 22:05:17,459 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:05:17" (1/1) ... [2024-11-10 22:05:17,461 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:05:17" (1/1) ... [2024-11-10 22:05:17,467 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:05:17,468 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:05:17,468 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:05:17,468 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:05:17,469 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:05:17" (1/1) ... [2024-11-10 22:05:17,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:05:17,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:05:17,511 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) [2024-11-10 22:05:17,519 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 [2024-11-10 22:05:17,566 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-10 22:05:17,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 22:05:17,567 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2024-11-10 22:05:17,567 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2024-11-10 22:05:17,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 22:05:17,567 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-10 22:05:17,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:05:17,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:05:17,568 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2024-11-10 22:05:17,569 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2024-11-10 22:05:17,571 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 22:05:17,691 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:05:17,692 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:05:17,842 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 22:05:17,842 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:05:17,952 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:05:17,952 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:05:17,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:05:17 BoogieIcfgContainer [2024-11-10 22:05:17,953 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:05:17,955 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 22:05:17,955 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 22:05:17,959 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 22:05:17,960 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:05:16" (1/3) ... [2024-11-10 22:05:17,960 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29c1cacf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:05:17, skipping insertion in model container [2024-11-10 22:05:17,961 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:05:17" (2/3) ... [2024-11-10 22:05:17,961 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29c1cacf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:05:17, skipping insertion in model container [2024-11-10 22:05:17,961 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:05:17" (3/3) ... [2024-11-10 22:05:17,962 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock-2.i [2024-11-10 22:05:17,979 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 22:05:17,980 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-10 22:05:17,980 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 22:05:18,054 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-10 22:05:18,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 56 transitions, 140 flow [2024-11-10 22:05:18,159 INFO L124 PetriNetUnfolderBase]: 0/52 cut-off events. [2024-11-10 22:05:18,159 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 22:05:18,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 52 events. 0/52 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 125 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-10 22:05:18,161 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 56 transitions, 140 flow [2024-11-10 22:05:18,165 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 50 transitions, 121 flow [2024-11-10 22:05:18,173 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:05:18,179 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;@3e4a1d53, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:05:18,180 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-10 22:05:18,197 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:05:18,197 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2024-11-10 22:05:18,197 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:05:18,197 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:05:18,198 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-10 22:05:18,198 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 22:05:18,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:05:18,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1495544843, now seen corresponding path program 1 times [2024-11-10 22:05:18,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:05:18,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919603326] [2024-11-10 22:05:18,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:05:18,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:05:18,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:05:18,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:05:18,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:05:18,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919603326] [2024-11-10 22:05:18,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919603326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:05:18,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:05:18,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 22:05:18,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518343341] [2024-11-10 22:05:18,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:05:18,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:05:18,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:05:18,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:05:18,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:05:18,558 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 56 [2024-11-10 22:05:18,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 50 transitions, 121 flow. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2024-11-10 22:05:18,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:05:18,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 56 [2024-11-10 22:05:18,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:05:24,936 INFO L124 PetriNetUnfolderBase]: 64590/88976 cut-off events. [2024-11-10 22:05:24,936 INFO L125 PetriNetUnfolderBase]: For 6412/6412 co-relation queries the response was YES. [2024-11-10 22:05:25,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181649 conditions, 88976 events. 64590/88976 cut-off events. For 6412/6412 co-relation queries the response was YES. Maximal size of possible extension queue 2261. Compared 569056 event pairs, 23709 based on Foata normal form. 0/83103 useless extension candidates. Maximal degree in co-relation 164063. Up to 46087 conditions per place. [2024-11-10 22:05:25,623 INFO L140 encePairwiseOnDemand]: 41/56 looper letters, 77 selfloop transitions, 7 changer transitions 0/86 dead transitions. [2024-11-10 22:05:25,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 86 transitions, 376 flow [2024-11-10 22:05:25,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:05:25,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:05:25,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 110 transitions. [2024-11-10 22:05:25,636 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6547619047619048 [2024-11-10 22:05:25,638 INFO L175 Difference]: Start difference. First operand has 63 places, 50 transitions, 121 flow. Second operand 3 states and 110 transitions. [2024-11-10 22:05:25,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 86 transitions, 376 flow [2024-11-10 22:05:25,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 86 transitions, 354 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-11-10 22:05:25,808 INFO L231 Difference]: Finished difference. Result has 60 places, 56 transitions, 176 flow [2024-11-10 22:05:25,810 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=60, PETRI_TRANSITIONS=56} [2024-11-10 22:05:25,814 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, -3 predicate places. [2024-11-10 22:05:25,814 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 56 transitions, 176 flow [2024-11-10 22:05:25,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2024-11-10 22:05:25,815 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:05:25,815 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:05:25,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 22:05:25,815 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 22:05:25,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:05:25,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1875148156, now seen corresponding path program 1 times [2024-11-10 22:05:25,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:05:25,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934730449] [2024-11-10 22:05:25,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:05:25,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:05:25,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:05:25,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:05:25,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:05:25,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934730449] [2024-11-10 22:05:25,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934730449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:05:25,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:05:25,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:05:25,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177799711] [2024-11-10 22:05:25,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:05:25,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:05:25,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:05:25,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:05:25,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:05:25,945 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 56 [2024-11-10 22:05:25,946 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 56 transitions, 176 flow. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2024-11-10 22:05:25,946 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:05:25,946 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 56 [2024-11-10 22:05:25,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:05:28,856 INFO L124 PetriNetUnfolderBase]: 37862/53298 cut-off events. [2024-11-10 22:05:28,856 INFO L125 PetriNetUnfolderBase]: For 15409/15419 co-relation queries the response was YES. [2024-11-10 22:05:28,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118488 conditions, 53298 events. 37862/53298 cut-off events. For 15409/15419 co-relation queries the response was YES. Maximal size of possible extension queue 1258. Compared 327814 event pairs, 8659 based on Foata normal form. 3187/54918 useless extension candidates. Maximal degree in co-relation 16535. Up to 29793 conditions per place. [2024-11-10 22:05:29,181 INFO L140 encePairwiseOnDemand]: 41/56 looper letters, 93 selfloop transitions, 11 changer transitions 18/124 dead transitions. [2024-11-10 22:05:29,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 124 transitions, 584 flow [2024-11-10 22:05:29,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:05:29,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:05:29,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 152 transitions. [2024-11-10 22:05:29,187 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6785714285714286 [2024-11-10 22:05:29,187 INFO L175 Difference]: Start difference. First operand has 60 places, 56 transitions, 176 flow. Second operand 4 states and 152 transitions. [2024-11-10 22:05:29,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 124 transitions, 584 flow [2024-11-10 22:05:29,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 124 transitions, 570 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:05:29,231 INFO L231 Difference]: Finished difference. Result has 63 places, 58 transitions, 225 flow [2024-11-10 22:05:29,231 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=225, PETRI_PLACES=63, PETRI_TRANSITIONS=58} [2024-11-10 22:05:29,232 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 0 predicate places. [2024-11-10 22:05:29,232 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 58 transitions, 225 flow [2024-11-10 22:05:29,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2024-11-10 22:05:29,233 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:05:29,233 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:05:29,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 22:05:29,234 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 22:05:29,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:05:29,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1875148157, now seen corresponding path program 1 times [2024-11-10 22:05:29,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:05:29,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349482137] [2024-11-10 22:05:29,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:05:29,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:05:29,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:05:29,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:05:29,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:05:29,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349482137] [2024-11-10 22:05:29,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349482137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:05:29,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:05:29,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:05:29,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597334607] [2024-11-10 22:05:29,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:05:29,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:05:29,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:05:29,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:05:29,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:05:29,321 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 56 [2024-11-10 22:05:29,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 58 transitions, 225 flow. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2024-11-10 22:05:29,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:05:29,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 56 [2024-11-10 22:05:29,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:05:31,635 INFO L124 PetriNetUnfolderBase]: 33255/47009 cut-off events. [2024-11-10 22:05:31,635 INFO L125 PetriNetUnfolderBase]: For 18294/18297 co-relation queries the response was YES. [2024-11-10 22:05:31,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109272 conditions, 47009 events. 33255/47009 cut-off events. For 18294/18297 co-relation queries the response was YES. Maximal size of possible extension queue 1139. Compared 286550 event pairs, 5718 based on Foata normal form. 1271/48271 useless extension candidates. Maximal degree in co-relation 36396. Up to 23329 conditions per place. [2024-11-10 22:05:31,928 INFO L140 encePairwiseOnDemand]: 41/56 looper letters, 93 selfloop transitions, 15 changer transitions 12/122 dead transitions. [2024-11-10 22:05:31,929 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 122 transitions, 623 flow [2024-11-10 22:05:31,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:05:31,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:05:31,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 146 transitions. [2024-11-10 22:05:31,934 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6517857142857143 [2024-11-10 22:05:31,934 INFO L175 Difference]: Start difference. First operand has 63 places, 58 transitions, 225 flow. Second operand 4 states and 146 transitions. [2024-11-10 22:05:31,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 122 transitions, 623 flow [2024-11-10 22:05:31,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 122 transitions, 616 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:05:31,952 INFO L231 Difference]: Finished difference. Result has 66 places, 62 transitions, 298 flow [2024-11-10 22:05:31,953 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=298, PETRI_PLACES=66, PETRI_TRANSITIONS=62} [2024-11-10 22:05:31,954 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 3 predicate places. [2024-11-10 22:05:31,955 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 62 transitions, 298 flow [2024-11-10 22:05:31,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2024-11-10 22:05:31,955 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:05:31,955 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:05:31,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 22:05:31,956 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 22:05:31,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:05:31,956 INFO L85 PathProgramCache]: Analyzing trace with hash -479533268, now seen corresponding path program 1 times [2024-11-10 22:05:31,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:05:31,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125231262] [2024-11-10 22:05:31,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:05:31,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:05:31,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:05:32,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:05:32,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:05:32,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125231262] [2024-11-10 22:05:32,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125231262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:05:32,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:05:32,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:05:32,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601598374] [2024-11-10 22:05:32,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:05:32,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:05:32,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:05:32,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:05:32,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:05:32,018 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 56 [2024-11-10 22:05:32,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 62 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2024-11-10 22:05:32,019 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:05:32,019 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 56 [2024-11-10 22:05:32,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:05:34,441 INFO L124 PetriNetUnfolderBase]: 34383/48450 cut-off events. [2024-11-10 22:05:34,442 INFO L125 PetriNetUnfolderBase]: For 33134/33137 co-relation queries the response was YES. [2024-11-10 22:05:34,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116857 conditions, 48450 events. 34383/48450 cut-off events. For 33134/33137 co-relation queries the response was YES. Maximal size of possible extension queue 1192. Compared 294064 event pairs, 22814 based on Foata normal form. 996/49437 useless extension candidates. Maximal degree in co-relation 38216. Up to 38824 conditions per place. [2024-11-10 22:05:34,674 INFO L140 encePairwiseOnDemand]: 43/56 looper letters, 75 selfloop transitions, 11 changer transitions 6/94 dead transitions. [2024-11-10 22:05:34,674 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 94 transitions, 566 flow [2024-11-10 22:05:34,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:05:34,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:05:34,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2024-11-10 22:05:34,676 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6190476190476191 [2024-11-10 22:05:34,676 INFO L175 Difference]: Start difference. First operand has 66 places, 62 transitions, 298 flow. Second operand 3 states and 104 transitions. [2024-11-10 22:05:34,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 94 transitions, 566 flow [2024-11-10 22:05:34,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 94 transitions, 534 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-10 22:05:34,722 INFO L231 Difference]: Finished difference. Result has 68 places, 60 transitions, 312 flow [2024-11-10 22:05:34,722 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=312, PETRI_PLACES=68, PETRI_TRANSITIONS=60} [2024-11-10 22:05:34,723 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 5 predicate places. [2024-11-10 22:05:34,723 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 60 transitions, 312 flow [2024-11-10 22:05:34,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2024-11-10 22:05:34,724 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:05:34,724 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:05:34,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 22:05:34,725 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 22:05:34,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:05:34,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1786440296, now seen corresponding path program 1 times [2024-11-10 22:05:34,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:05:34,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803195083] [2024-11-10 22:05:34,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:05:34,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:05:34,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:05:34,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:05:34,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:05:34,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803195083] [2024-11-10 22:05:34,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803195083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:05:34,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:05:34,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:05:34,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173093125] [2024-11-10 22:05:34,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:05:34,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:05:34,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:05:34,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:05:34,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-10 22:05:34,840 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 56 [2024-11-10 22:05:34,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 60 transitions, 312 flow. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) [2024-11-10 22:05:34,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:05:34,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 56 [2024-11-10 22:05:34,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:05:37,817 INFO L124 PetriNetUnfolderBase]: 22974/32717 cut-off events. [2024-11-10 22:05:37,817 INFO L125 PetriNetUnfolderBase]: For 23625/23628 co-relation queries the response was YES. [2024-11-10 22:05:37,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78670 conditions, 32717 events. 22974/32717 cut-off events. For 23625/23628 co-relation queries the response was YES. Maximal size of possible extension queue 705. Compared 188148 event pairs, 3416 based on Foata normal form. 351/33059 useless extension candidates. Maximal degree in co-relation 37446. Up to 14907 conditions per place. [2024-11-10 22:05:38,106 INFO L140 encePairwiseOnDemand]: 42/56 looper letters, 110 selfloop transitions, 14 changer transitions 14/140 dead transitions. [2024-11-10 22:05:38,107 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 140 transitions, 747 flow [2024-11-10 22:05:38,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 22:05:38,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 22:05:38,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 180 transitions. [2024-11-10 22:05:38,108 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45918367346938777 [2024-11-10 22:05:38,108 INFO L175 Difference]: Start difference. First operand has 68 places, 60 transitions, 312 flow. Second operand 7 states and 180 transitions. [2024-11-10 22:05:38,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 140 transitions, 747 flow [2024-11-10 22:05:38,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 140 transitions, 717 flow, removed 5 selfloop flow, removed 2 redundant places. [2024-11-10 22:05:38,239 INFO L231 Difference]: Finished difference. Result has 70 places, 56 transitions, 271 flow [2024-11-10 22:05:38,239 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=271, PETRI_PLACES=70, PETRI_TRANSITIONS=56} [2024-11-10 22:05:38,240 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 7 predicate places. [2024-11-10 22:05:38,240 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 56 transitions, 271 flow [2024-11-10 22:05:38,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) [2024-11-10 22:05:38,241 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:05:38,241 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:05:38,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 22:05:38,242 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 22:05:38,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:05:38,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1980634885, now seen corresponding path program 1 times [2024-11-10 22:05:38,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:05:38,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309471380] [2024-11-10 22:05:38,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:05:38,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:05:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:05:38,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:05:38,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:05:38,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309471380] [2024-11-10 22:05:38,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309471380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:05:38,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:05:38,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:05:38,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739203067] [2024-11-10 22:05:38,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:05:38,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:05:38,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:05:38,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:05:38,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-10 22:05:38,314 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 56 [2024-11-10 22:05:38,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 56 transitions, 271 flow. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) [2024-11-10 22:05:38,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:05:38,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 56 [2024-11-10 22:05:38,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:05:40,223 INFO L124 PetriNetUnfolderBase]: 22921/32603 cut-off events. [2024-11-10 22:05:40,224 INFO L125 PetriNetUnfolderBase]: For 20574/20577 co-relation queries the response was YES. [2024-11-10 22:05:40,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79441 conditions, 32603 events. 22921/32603 cut-off events. For 20574/20577 co-relation queries the response was YES. Maximal size of possible extension queue 727. Compared 188229 event pairs, 2468 based on Foata normal form. 235/32829 useless extension candidates. Maximal degree in co-relation 40243. Up to 18926 conditions per place. [2024-11-10 22:05:40,330 INFO L140 encePairwiseOnDemand]: 44/56 looper letters, 85 selfloop transitions, 11 changer transitions 53/151 dead transitions. [2024-11-10 22:05:40,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 151 transitions, 783 flow [2024-11-10 22:05:40,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 22:05:40,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 22:05:40,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 198 transitions. [2024-11-10 22:05:40,332 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4419642857142857 [2024-11-10 22:05:40,332 INFO L175 Difference]: Start difference. First operand has 70 places, 56 transitions, 271 flow. Second operand 8 states and 198 transitions. [2024-11-10 22:05:40,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 151 transitions, 783 flow [2024-11-10 22:05:40,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 151 transitions, 741 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-10 22:05:40,477 INFO L231 Difference]: Finished difference. Result has 74 places, 54 transitions, 248 flow [2024-11-10 22:05:40,477 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=248, PETRI_PLACES=74, PETRI_TRANSITIONS=54} [2024-11-10 22:05:40,478 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 11 predicate places. [2024-11-10 22:05:40,478 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 54 transitions, 248 flow [2024-11-10 22:05:40,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) [2024-11-10 22:05:40,478 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:05:40,478 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:05:40,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 22:05:40,479 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 22:05:40,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:05:40,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1363632620, now seen corresponding path program 1 times [2024-11-10 22:05:40,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:05:40,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998148934] [2024-11-10 22:05:40,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:05:40,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:05:40,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:05:40,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:05:40,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:05:40,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998148934] [2024-11-10 22:05:40,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998148934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:05:40,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:05:40,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:05:40,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098224549] [2024-11-10 22:05:40,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:05:40,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:05:40,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:05:40,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:05:40,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-10 22:05:40,540 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 56 [2024-11-10 22:05:40,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 54 transitions, 248 flow. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) [2024-11-10 22:05:40,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:05:40,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 56 [2024-11-10 22:05:40,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:05:41,736 INFO L124 PetriNetUnfolderBase]: 18266/25913 cut-off events. [2024-11-10 22:05:41,736 INFO L125 PetriNetUnfolderBase]: For 15327/15330 co-relation queries the response was YES. [2024-11-10 22:05:41,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61566 conditions, 25913 events. 18266/25913 cut-off events. For 15327/15330 co-relation queries the response was YES. Maximal size of possible extension queue 533. Compared 141637 event pairs, 2687 based on Foata normal form. 333/26237 useless extension candidates. Maximal degree in co-relation 60706. Up to 14165 conditions per place. [2024-11-10 22:05:41,842 INFO L140 encePairwiseOnDemand]: 45/56 looper letters, 96 selfloop transitions, 10 changer transitions 15/123 dead transitions. [2024-11-10 22:05:41,842 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 123 transitions, 614 flow [2024-11-10 22:05:41,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 22:05:41,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 22:05:41,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 165 transitions. [2024-11-10 22:05:41,843 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42091836734693877 [2024-11-10 22:05:41,843 INFO L175 Difference]: Start difference. First operand has 74 places, 54 transitions, 248 flow. Second operand 7 states and 165 transitions. [2024-11-10 22:05:41,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 123 transitions, 614 flow [2024-11-10 22:05:41,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 123 transitions, 576 flow, removed 5 selfloop flow, removed 7 redundant places. [2024-11-10 22:05:41,956 INFO L231 Difference]: Finished difference. Result has 67 places, 48 transitions, 179 flow [2024-11-10 22:05:41,956 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=179, PETRI_PLACES=67, PETRI_TRANSITIONS=48} [2024-11-10 22:05:41,957 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 4 predicate places. [2024-11-10 22:05:41,957 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 48 transitions, 179 flow [2024-11-10 22:05:41,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) [2024-11-10 22:05:41,958 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:05:41,958 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:05:41,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 22:05:41,958 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 22:05:41,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:05:41,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1363632621, now seen corresponding path program 1 times [2024-11-10 22:05:41,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:05:41,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502750649] [2024-11-10 22:05:41,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:05:41,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:05:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:05:42,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:05:42,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:05:42,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502750649] [2024-11-10 22:05:42,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502750649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:05:42,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:05:42,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:05:42,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602048105] [2024-11-10 22:05:42,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:05:42,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:05:42,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:05:42,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:05:42,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-10 22:05:42,092 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 56 [2024-11-10 22:05:42,092 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 48 transitions, 179 flow. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) [2024-11-10 22:05:42,092 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:05:42,093 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 56 [2024-11-10 22:05:42,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:05:43,523 INFO L124 PetriNetUnfolderBase]: 18402/26092 cut-off events. [2024-11-10 22:05:43,523 INFO L125 PetriNetUnfolderBase]: For 11185/11188 co-relation queries the response was YES. [2024-11-10 22:05:43,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60875 conditions, 26092 events. 18402/26092 cut-off events. For 11185/11188 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 143641 event pairs, 1727 based on Foata normal form. 223/26306 useless extension candidates. Maximal degree in co-relation 39274. Up to 15291 conditions per place. [2024-11-10 22:05:43,601 INFO L140 encePairwiseOnDemand]: 49/56 looper letters, 71 selfloop transitions, 5 changer transitions 42/120 dead transitions. [2024-11-10 22:05:43,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 120 transitions, 577 flow [2024-11-10 22:05:43,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 22:05:43,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 22:05:43,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 162 transitions. [2024-11-10 22:05:43,603 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.413265306122449 [2024-11-10 22:05:43,603 INFO L175 Difference]: Start difference. First operand has 67 places, 48 transitions, 179 flow. Second operand 7 states and 162 transitions. [2024-11-10 22:05:43,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 120 transitions, 577 flow [2024-11-10 22:05:43,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 120 transitions, 545 flow, removed 1 selfloop flow, removed 7 redundant places. [2024-11-10 22:05:43,738 INFO L231 Difference]: Finished difference. Result has 67 places, 46 transitions, 157 flow [2024-11-10 22:05:43,738 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=157, PETRI_PLACES=67, PETRI_TRANSITIONS=46} [2024-11-10 22:05:43,738 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 4 predicate places. [2024-11-10 22:05:43,739 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 46 transitions, 157 flow [2024-11-10 22:05:43,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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) [2024-11-10 22:05:43,739 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:05:43,739 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:05:43,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 22:05:43,740 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 22:05:43,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:05:43,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1220495968, now seen corresponding path program 1 times [2024-11-10 22:05:43,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:05:43,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687545113] [2024-11-10 22:05:43,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:05:43,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:05:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:05:43,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:05:43,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:05:43,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687545113] [2024-11-10 22:05:43,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687545113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:05:43,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:05:43,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:05:43,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997623252] [2024-11-10 22:05:43,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:05:43,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:05:43,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:05:43,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:05:43,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-10 22:05:43,831 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 56 [2024-11-10 22:05:43,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 46 transitions, 157 flow. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 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) [2024-11-10 22:05:43,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:05:43,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 56 [2024-11-10 22:05:43,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:05:44,793 INFO L124 PetriNetUnfolderBase]: 15112/21311 cut-off events. [2024-11-10 22:05:44,794 INFO L125 PetriNetUnfolderBase]: For 9161/9164 co-relation queries the response was YES. [2024-11-10 22:05:44,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49271 conditions, 21311 events. 15112/21311 cut-off events. For 9161/9164 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 112086 event pairs, 756 based on Foata normal form. 119/21421 useless extension candidates. Maximal degree in co-relation 48341. Up to 8471 conditions per place. [2024-11-10 22:05:44,864 INFO L140 encePairwiseOnDemand]: 49/56 looper letters, 77 selfloop transitions, 6 changer transitions 32/117 dead transitions. [2024-11-10 22:05:44,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 117 transitions, 538 flow [2024-11-10 22:05:44,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 22:05:44,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 22:05:44,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 158 transitions. [2024-11-10 22:05:44,865 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4030612244897959 [2024-11-10 22:05:44,865 INFO L175 Difference]: Start difference. First operand has 67 places, 46 transitions, 157 flow. Second operand 7 states and 158 transitions. [2024-11-10 22:05:44,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 117 transitions, 538 flow [2024-11-10 22:05:44,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 117 transitions, 518 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-10 22:05:44,885 INFO L231 Difference]: Finished difference. Result has 63 places, 40 transitions, 128 flow [2024-11-10 22:05:44,885 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=128, PETRI_PLACES=63, PETRI_TRANSITIONS=40} [2024-11-10 22:05:44,886 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, 0 predicate places. [2024-11-10 22:05:44,886 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 40 transitions, 128 flow [2024-11-10 22:05:44,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 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) [2024-11-10 22:05:44,887 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:05:44,887 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:05:44,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 22:05:44,887 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 22:05:44,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:05:44,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1220509842, now seen corresponding path program 1 times [2024-11-10 22:05:44,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:05:44,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216678381] [2024-11-10 22:05:44,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:05:44,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:05:44,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:05:44,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:05:44,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:05:44,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216678381] [2024-11-10 22:05:44,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216678381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:05:44,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:05:44,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:05:44,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415792079] [2024-11-10 22:05:44,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:05:44,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:05:44,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:05:44,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:05:44,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-10 22:05:44,956 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 56 [2024-11-10 22:05:44,956 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 40 transitions, 128 flow. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 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) [2024-11-10 22:05:44,956 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:05:44,956 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 56 [2024-11-10 22:05:44,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:05:45,593 INFO L124 PetriNetUnfolderBase]: 12176/17184 cut-off events. [2024-11-10 22:05:45,593 INFO L125 PetriNetUnfolderBase]: For 5587/5590 co-relation queries the response was YES. [2024-11-10 22:05:45,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39034 conditions, 17184 events. 12176/17184 cut-off events. For 5587/5590 co-relation queries the response was YES. Maximal size of possible extension queue 374. Compared 88410 event pairs, 701 based on Foata normal form. 113/17288 useless extension candidates. Maximal degree in co-relation 6428. Up to 7308 conditions per place. [2024-11-10 22:05:45,632 INFO L140 encePairwiseOnDemand]: 50/56 looper letters, 0 selfloop transitions, 0 changer transitions 97/97 dead transitions. [2024-11-10 22:05:45,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 97 transitions, 437 flow [2024-11-10 22:05:45,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 22:05:45,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 22:05:45,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 138 transitions. [2024-11-10 22:05:45,633 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3520408163265306 [2024-11-10 22:05:45,633 INFO L175 Difference]: Start difference. First operand has 63 places, 40 transitions, 128 flow. Second operand 7 states and 138 transitions. [2024-11-10 22:05:45,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 97 transitions, 437 flow [2024-11-10 22:05:45,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 97 transitions, 415 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-11-10 22:05:45,639 INFO L231 Difference]: Finished difference. Result has 53 places, 0 transitions, 0 flow [2024-11-10 22:05:45,639 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=53, PETRI_TRANSITIONS=0} [2024-11-10 22:05:45,640 INFO L277 CegarLoopForPetriNet]: 63 programPoint places, -10 predicate places. [2024-11-10 22:05:45,640 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 0 transitions, 0 flow [2024-11-10 22:05:45,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 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) [2024-11-10 22:05:45,642 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2024-11-10 22:05:45,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2024-11-10 22:05:45,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2024-11-10 22:05:45,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2024-11-10 22:05:45,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 16 remaining) [2024-11-10 22:05:45,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 16 remaining) [2024-11-10 22:05:45,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 16 remaining) [2024-11-10 22:05:45,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 16 remaining) [2024-11-10 22:05:45,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2024-11-10 22:05:45,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2024-11-10 22:05:45,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2024-11-10 22:05:45,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2024-11-10 22:05:45,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2024-11-10 22:05:45,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2024-11-10 22:05:45,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2024-11-10 22:05:45,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2024-11-10 22:05:45,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 22:05:45,645 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:05:45,650 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 22:05:45,650 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 22:05:45,659 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:05:45 BasicIcfg [2024-11-10 22:05:45,659 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 22:05:45,660 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 22:05:45,660 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 22:05:45,660 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 22:05:45,661 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:05:17" (3/4) ... [2024-11-10 22:05:45,662 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 22:05:45,665 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure reader [2024-11-10 22:05:45,665 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure writer [2024-11-10 22:05:45,669 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2024-11-10 22:05:45,669 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-10 22:05:45,669 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-10 22:05:45,669 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-10 22:05:45,746 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 22:05:45,746 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 22:05:45,746 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 22:05:45,747 INFO L158 Benchmark]: Toolchain (without parser) took 28915.61ms. Allocated memory was 161.5MB in the beginning and 11.3GB in the end (delta: 11.2GB). Free memory was 102.1MB in the beginning and 9.6GB in the end (delta: -9.5GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2024-11-10 22:05:45,747 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 161.5MB. Free memory is still 124.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:05:45,748 INFO L158 Benchmark]: CACSL2BoogieTranslator took 524.01ms. Allocated memory is still 161.5MB. Free memory was 101.5MB in the beginning and 79.6MB in the end (delta: 21.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-10 22:05:45,748 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.57ms. Allocated memory is still 161.5MB. Free memory was 79.6MB in the beginning and 77.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 22:05:45,749 INFO L158 Benchmark]: Boogie Preprocessor took 57.71ms. Allocated memory is still 161.5MB. Free memory was 77.5MB in the beginning and 75.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 22:05:45,749 INFO L158 Benchmark]: IcfgBuilder took 485.53ms. Allocated memory is still 161.5MB. Free memory was 75.4MB in the beginning and 53.0MB in the end (delta: 22.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-10 22:05:45,750 INFO L158 Benchmark]: TraceAbstraction took 27704.14ms. Allocated memory was 161.5MB in the beginning and 11.3GB in the end (delta: 11.2GB). Free memory was 51.8MB in the beginning and 9.6GB in the end (delta: -9.5GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2024-11-10 22:05:45,750 INFO L158 Benchmark]: Witness Printer took 86.79ms. Allocated memory is still 11.3GB. Free memory was 9.6GB in the beginning and 9.6GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 22:05:45,751 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 161.5MB. Free memory is still 124.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 524.01ms. Allocated memory is still 161.5MB. Free memory was 101.5MB in the beginning and 79.6MB in the end (delta: 21.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.57ms. Allocated memory is still 161.5MB. Free memory was 79.6MB in the beginning and 77.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.71ms. Allocated memory is still 161.5MB. Free memory was 77.5MB in the beginning and 75.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 485.53ms. Allocated memory is still 161.5MB. Free memory was 75.4MB in the beginning and 53.0MB in the end (delta: 22.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 27704.14ms. Allocated memory was 161.5MB in the beginning and 11.3GB in the end (delta: 11.2GB). Free memory was 51.8MB in the beginning and 9.6GB in the end (delta: -9.5GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. * Witness Printer took 86.79ms. Allocated memory is still 11.3GB. Free memory was 9.6GB in the beginning and 9.6GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 711]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 711]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 740]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 740]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 82 locations, 16 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 27.6s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 26.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 770 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 770 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 83 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2036 IncrementalHoareTripleChecker+Invalid, 2119 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 83 mSolverCounterUnsat, 0 mSDtfsCounter, 2036 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=312occurred in iteration=4, InterpolantAutomatonStates: 57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 460 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-10 22:05:45,785 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE