./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_41-pt_rwlock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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/goblint-regression/04-mutex_41-pt_rwlock.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 fef1217f8a35a342f6e4927c3581e159c4208b83ce3f67c4227091859235df56 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 06:33:07,228 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 06:33:07,287 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 06:33:07,292 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 06:33:07,293 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 06:33:07,316 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 06:33:07,317 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 06:33:07,317 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 06:33:07,317 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 06:33:07,317 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 06:33:07,318 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 06:33:07,318 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 06:33:07,318 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 06:33:07,318 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 06:33:07,319 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 06:33:07,319 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 06:33:07,319 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 06:33:07,319 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 06:33:07,319 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 06:33:07,319 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 06:33:07,319 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 06:33:07,319 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 06:33:07,320 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 06:33:07,320 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 06:33:07,320 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 06:33:07,320 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 06:33:07,320 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 06:33:07,320 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 06:33:07,320 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 06:33:07,320 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 06:33:07,320 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 06:33:07,320 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 06:33:07,320 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 06:33:07,321 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 06:33:07,321 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:33:07,321 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 06:33:07,321 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 06:33:07,321 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 06:33:07,321 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 06:33:07,321 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 06:33:07,321 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 06:33:07,322 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 06:33:07,322 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 06:33:07,322 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 06:33:07,322 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 06:33:07,322 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> fef1217f8a35a342f6e4927c3581e159c4208b83ce3f67c4227091859235df56 [2025-03-09 06:33:07,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 06:33:07,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 06:33:07,540 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 06:33:07,542 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 06:33:07,542 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 06:33:07,543 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_41-pt_rwlock.i [2025-03-09 06:33:08,688 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2b6ded10/6380fde7cbc54d54901904f3fe0213d1/FLAG2426be637 [2025-03-09 06:33:08,955 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 06:33:08,955 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_41-pt_rwlock.i [2025-03-09 06:33:08,965 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2b6ded10/6380fde7cbc54d54901904f3fe0213d1/FLAG2426be637 [2025-03-09 06:33:09,264 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2b6ded10/6380fde7cbc54d54901904f3fe0213d1 [2025-03-09 06:33:09,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 06:33:09,267 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 06:33:09,267 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 06:33:09,267 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 06:33:09,270 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 06:33:09,271 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:33:09" (1/1) ... [2025-03-09 06:33:09,271 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53b94d1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:09, skipping insertion in model container [2025-03-09 06:33:09,271 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:33:09" (1/1) ... [2025-03-09 06:33:09,289 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 06:33:09,514 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:33:09,528 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 06:33:09,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:33:09,612 INFO L204 MainTranslator]: Completed translation [2025-03-09 06:33:09,613 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:09 WrapperNode [2025-03-09 06:33:09,613 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 06:33:09,614 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 06:33:09,614 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 06:33:09,614 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 06:33:09,619 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:09" (1/1) ... [2025-03-09 06:33:09,626 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:09" (1/1) ... [2025-03-09 06:33:09,636 INFO L138 Inliner]: procedures = 263, calls = 19, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2025-03-09 06:33:09,637 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 06:33:09,637 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 06:33:09,637 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 06:33:09,637 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 06:33:09,642 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:09" (1/1) ... [2025-03-09 06:33:09,642 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:09" (1/1) ... [2025-03-09 06:33:09,644 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:09" (1/1) ... [2025-03-09 06:33:09,653 INFO L175 MemorySlicer]: Split 11 memory accesses to 1 slices as follows [11]. 100 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [11]. The 0 writes are split as follows [0]. [2025-03-09 06:33:09,654 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:09" (1/1) ... [2025-03-09 06:33:09,654 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:09" (1/1) ... [2025-03-09 06:33:09,657 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:09" (1/1) ... [2025-03-09 06:33:09,658 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:09" (1/1) ... [2025-03-09 06:33:09,659 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:09" (1/1) ... [2025-03-09 06:33:09,660 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:09" (1/1) ... [2025-03-09 06:33:09,661 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 06:33:09,661 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 06:33:09,661 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 06:33:09,661 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 06:33:09,662 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:09" (1/1) ... [2025-03-09 06:33:09,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:33:09,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:33:09,683 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) [2025-03-09 06:33:09,685 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 [2025-03-09 06:33:09,701 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockReadLock [2025-03-09 06:33:09,701 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockWriteLock [2025-03-09 06:33:09,701 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockUnlock [2025-03-09 06:33:09,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 06:33:09,701 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-09 06:33:09,701 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-09 06:33:09,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 06:33:09,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 06:33:09,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 06:33:09,702 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-09 06:33:09,796 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 06:33:09,798 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 06:33:09,886 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-09 06:33:09,887 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 06:33:09,979 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 06:33:09,982 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 06:33:09,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:33:09 BoogieIcfgContainer [2025-03-09 06:33:09,982 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 06:33:09,984 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 06:33:09,984 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 06:33:09,987 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 06:33:09,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 06:33:09" (1/3) ... [2025-03-09 06:33:09,988 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a63b36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:33:09, skipping insertion in model container [2025-03-09 06:33:09,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:33:09" (2/3) ... [2025-03-09 06:33:09,988 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a63b36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:33:09, skipping insertion in model container [2025-03-09 06:33:09,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:33:09" (3/3) ... [2025-03-09 06:33:09,989 INFO L128 eAbstractionObserver]: Analyzing ICFG 04-mutex_41-pt_rwlock.i [2025-03-09 06:33:09,999 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 06:33:10,000 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_41-pt_rwlock.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-03-09 06:33:10,000 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-09 06:33:10,077 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-09 06:33:10,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 27 places, 23 transitions, 53 flow [2025-03-09 06:33:10,133 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2025-03-09 06:33:10,137 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-09 06:33:10,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 22 events. 0/22 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 31 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2025-03-09 06:33:10,142 INFO L82 GeneralOperation]: Start removeDead. Operand has 27 places, 23 transitions, 53 flow [2025-03-09 06:33:10,144 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 20 transitions, 43 flow [2025-03-09 06:33:10,151 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 06:33:10,161 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;@537ac06, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 06:33:10,162 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-03-09 06:33:10,169 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 06:33:10,170 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2025-03-09 06:33:10,170 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 06:33:10,170 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:10,170 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-09 06:33:10,171 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-09 06:33:10,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:10,175 INFO L85 PathProgramCache]: Analyzing trace with hash 24864772, now seen corresponding path program 1 times [2025-03-09 06:33:10,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:10,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069750209] [2025-03-09 06:33:10,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:10,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:10,244 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 06:33:10,260 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 06:33:10,261 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:10,261 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:10,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:10,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:10,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069750209] [2025-03-09 06:33:10,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069750209] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:33:10,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:33:10,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:33:10,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737804021] [2025-03-09 06:33:10,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:33:10,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:33:10,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:10,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:33:10,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:33:10,460 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 23 [2025-03-09 06:33:10,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 20 transitions, 43 flow. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2025-03-09 06:33:10,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:10,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 23 [2025-03-09 06:33:10,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:33:10,538 INFO L124 PetriNetUnfolderBase]: 25/77 cut-off events. [2025-03-09 06:33:10,539 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 06:33:10,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 77 events. 25/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 240 event pairs, 5 based on Foata normal form. 6/80 useless extension candidates. Maximal degree in co-relation 135. Up to 34 conditions per place. [2025-03-09 06:33:10,541 INFO L140 encePairwiseOnDemand]: 18/23 looper letters, 13 selfloop transitions, 3 changer transitions 7/28 dead transitions. [2025-03-09 06:33:10,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 28 transitions, 103 flow [2025-03-09 06:33:10,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:33:10,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:33:10,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 52 transitions. [2025-03-09 06:33:10,550 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5652173913043478 [2025-03-09 06:33:10,552 INFO L175 Difference]: Start difference. First operand has 24 places, 20 transitions, 43 flow. Second operand 4 states and 52 transitions. [2025-03-09 06:33:10,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 28 transitions, 103 flow [2025-03-09 06:33:10,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 28 transitions, 102 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:33:10,558 INFO L231 Difference]: Finished difference. Result has 24 places, 15 transitions, 38 flow [2025-03-09 06:33:10,559 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=38, PETRI_PLACES=24, PETRI_TRANSITIONS=15} [2025-03-09 06:33:10,561 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, 0 predicate places. [2025-03-09 06:33:10,562 INFO L471 AbstractCegarLoop]: Abstraction has has 24 places, 15 transitions, 38 flow [2025-03-09 06:33:10,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2025-03-09 06:33:10,562 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:33:10,562 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-09 06:33:10,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 06:33:10,563 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-09 06:33:10,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:33:10,564 INFO L85 PathProgramCache]: Analyzing trace with hash 24730877, now seen corresponding path program 1 times [2025-03-09 06:33:10,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:33:10,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869662946] [2025-03-09 06:33:10,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:33:10,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:33:10,575 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 06:33:10,581 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 06:33:10,581 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:33:10,581 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:33:10,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:33:10,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:33:10,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869662946] [2025-03-09 06:33:10,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869662946] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:33:10,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:33:10,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:33:10,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709791324] [2025-03-09 06:33:10,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:33:10,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:33:10,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:33:10,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:33:10,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:33:10,638 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 23 [2025-03-09 06:33:10,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 15 transitions, 38 flow. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2025-03-09 06:33:10,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:33:10,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 23 [2025-03-09 06:33:10,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:33:10,681 INFO L124 PetriNetUnfolderBase]: 15/50 cut-off events. [2025-03-09 06:33:10,681 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-03-09 06:33:10,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 50 events. 15/50 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 119 event pairs, 10 based on Foata normal form. 12/61 useless extension candidates. Maximal degree in co-relation 94. Up to 29 conditions per place. [2025-03-09 06:33:10,681 INFO L140 encePairwiseOnDemand]: 19/23 looper letters, 0 selfloop transitions, 0 changer transitions 18/18 dead transitions. [2025-03-09 06:33:10,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 18 transitions, 78 flow [2025-03-09 06:33:10,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:33:10,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:33:10,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2025-03-09 06:33:10,682 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4891304347826087 [2025-03-09 06:33:10,683 INFO L175 Difference]: Start difference. First operand has 24 places, 15 transitions, 38 flow. Second operand 4 states and 45 transitions. [2025-03-09 06:33:10,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 18 transitions, 78 flow [2025-03-09 06:33:10,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 18 transitions, 68 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:33:10,683 INFO L231 Difference]: Finished difference. Result has 19 places, 0 transitions, 0 flow [2025-03-09 06:33:10,683 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=23, PETRI_DIFFERENCE_MINUEND_FLOW=28, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=19, PETRI_TRANSITIONS=0} [2025-03-09 06:33:10,684 INFO L279 CegarLoopForPetriNet]: 24 programPoint places, -5 predicate places. [2025-03-09 06:33:10,684 INFO L471 AbstractCegarLoop]: Abstraction has has 19 places, 0 transitions, 0 flow [2025-03-09 06:33:10,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2025-03-09 06:33:10,686 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2025-03-09 06:33:10,687 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2025-03-09 06:33:10,687 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2025-03-09 06:33:10,687 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2025-03-09 06:33:10,687 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2025-03-09 06:33:10,687 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2025-03-09 06:33:10,687 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2025-03-09 06:33:10,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 06:33:10,688 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-09 06:33:10,691 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-09 06:33:10,692 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 06:33:10,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 06:33:10 BasicIcfg [2025-03-09 06:33:10,695 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 06:33:10,695 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 06:33:10,695 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 06:33:10,695 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 06:33:10,698 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:33:09" (3/4) ... [2025-03-09 06:33:10,699 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-09 06:33:10,701 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-03-09 06:33:10,703 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2025-03-09 06:33:10,703 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-03-09 06:33:10,703 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-09 06:33:10,703 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-09 06:33:10,703 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-09 06:33:10,746 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 06:33:10,747 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-09 06:33:10,747 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 06:33:10,747 INFO L158 Benchmark]: Toolchain (without parser) took 1480.75ms. Allocated memory is still 142.6MB. Free memory was 111.0MB in the beginning and 80.6MB in the end (delta: 30.4MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. [2025-03-09 06:33:10,748 INFO L158 Benchmark]: CDTParser took 0.74ms. Allocated memory is still 201.3MB. Free memory is still 123.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:33:10,748 INFO L158 Benchmark]: CACSL2BoogieTranslator took 346.02ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 83.6MB in the end (delta: 26.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-09 06:33:10,748 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.04ms. Allocated memory is still 142.6MB. Free memory was 83.6MB in the beginning and 81.6MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:33:10,749 INFO L158 Benchmark]: Boogie Preprocessor took 23.66ms. Allocated memory is still 142.6MB. Free memory was 81.6MB in the beginning and 80.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:33:10,750 INFO L158 Benchmark]: IcfgBuilder took 321.22ms. Allocated memory is still 142.6MB. Free memory was 80.1MB in the beginning and 60.0MB in the end (delta: 20.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-09 06:33:10,750 INFO L158 Benchmark]: TraceAbstraction took 710.98ms. Allocated memory is still 142.6MB. Free memory was 59.5MB in the beginning and 85.7MB in the end (delta: -26.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:33:10,750 INFO L158 Benchmark]: Witness Printer took 51.55ms. Allocated memory is still 142.6MB. Free memory was 85.7MB in the beginning and 80.6MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:33:10,752 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74ms. Allocated memory is still 201.3MB. Free memory is still 123.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 346.02ms. Allocated memory is still 142.6MB. Free memory was 110.5MB in the beginning and 83.6MB in the end (delta: 26.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.04ms. Allocated memory is still 142.6MB. Free memory was 83.6MB in the beginning and 81.6MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.66ms. Allocated memory is still 142.6MB. Free memory was 81.6MB in the beginning and 80.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 321.22ms. Allocated memory is still 142.6MB. Free memory was 80.1MB in the beginning and 60.0MB in the end (delta: 20.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 710.98ms. Allocated memory is still 142.6MB. Free memory was 59.5MB in the beginning and 85.7MB in the end (delta: -26.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 51.55ms. Allocated memory is still 142.6MB. Free memory was 85.7MB in the beginning and 80.6MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 922]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 922]: 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 3 procedures, 35 locations, 34 edges, 7 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: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 69 IncrementalHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 3 mSDtfsCounter, 69 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 30 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-09 06:33:10,765 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