./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-theta/unwind1-100.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-theta/unwind1-100.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 d866fedd3df666b1282e36d0ae87b17d0a587658c87dddd4d2314d9586432757 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-23 02:02:57,177 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 02:02:57,237 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-23 02:02:57,246 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 02:02:57,246 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 02:02:57,275 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 02:02:57,275 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 02:02:57,276 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 02:02:57,280 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 02:02:57,280 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 02:02:57,281 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 02:02:57,281 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 02:02:57,281 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 02:02:57,282 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 02:02:57,282 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 02:02:57,282 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 02:02:57,282 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 02:02:57,283 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 02:02:57,283 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 02:02:57,283 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 02:02:57,283 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 02:02:57,286 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 02:02:57,286 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 02:02:57,287 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 02:02:57,287 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-23 02:02:57,287 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-23 02:02:57,287 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 02:02:57,287 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 02:02:57,288 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 02:02:57,288 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 02:02:57,288 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 02:02:57,288 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 02:02:57,288 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 02:02:57,289 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 02:02:57,289 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 02:02:57,289 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 02:02:57,289 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 02:02:57,289 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 02:02:57,289 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 02:02:57,290 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 02:02:57,290 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 02:02:57,291 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 02:02:57,291 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 02:02:57,291 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 02:02:57,292 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d866fedd3df666b1282e36d0ae87b17d0a587658c87dddd4d2314d9586432757 [2024-11-23 02:02:57,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 02:02:57,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 02:02:57,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 02:02:57,522 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 02:02:57,522 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 02:02:57,524 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-theta/unwind1-100.i [2024-11-23 02:02:58,927 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-23 02:02:59,142 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 02:02:59,142 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-theta/unwind1-100.i [2024-11-23 02:02:59,154 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/269a5fb39/517d1b88d9a545a799183c8c01d8e7c5/FLAG2181eac10 [2024-11-23 02:02:59,166 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/269a5fb39/517d1b88d9a545a799183c8c01d8e7c5 [2024-11-23 02:02:59,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 02:02:59,169 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 02:02:59,170 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 02:02:59,170 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 02:02:59,174 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 02:02:59,175 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:02:59" (1/1) ... [2024-11-23 02:02:59,175 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2279e0ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:59, skipping insertion in model container [2024-11-23 02:02:59,175 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:02:59" (1/1) ... [2024-11-23 02:02:59,205 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 02:02:59,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 02:02:59,527 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 02:02:59,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 02:02:59,606 INFO L204 MainTranslator]: Completed translation [2024-11-23 02:02:59,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:59 WrapperNode [2024-11-23 02:02:59,610 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 02:02:59,611 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 02:02:59,611 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 02:02:59,611 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 02:02:59,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:59" (1/1) ... [2024-11-23 02:02:59,629 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:59" (1/1) ... [2024-11-23 02:02:59,645 INFO L138 Inliner]: procedures = 169, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 58 [2024-11-23 02:02:59,648 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 02:02:59,649 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 02:02:59,649 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 02:02:59,649 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 02:02:59,657 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:59" (1/1) ... [2024-11-23 02:02:59,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:59" (1/1) ... [2024-11-23 02:02:59,659 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:59" (1/1) ... [2024-11-23 02:02:59,670 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]. [2024-11-23 02:02:59,672 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:59" (1/1) ... [2024-11-23 02:02:59,673 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:59" (1/1) ... [2024-11-23 02:02:59,678 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:59" (1/1) ... [2024-11-23 02:02:59,681 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:59" (1/1) ... [2024-11-23 02:02:59,682 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:59" (1/1) ... [2024-11-23 02:02:59,683 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:59" (1/1) ... [2024-11-23 02:02:59,685 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 02:02:59,686 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 02:02:59,686 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 02:02:59,686 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 02:02:59,687 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:59" (1/1) ... [2024-11-23 02:02:59,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 02:02:59,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:02:59,718 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) [2024-11-23 02:02:59,720 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 [2024-11-23 02:02:59,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 02:02:59,760 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-11-23 02:02:59,760 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-11-23 02:02:59,760 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-11-23 02:02:59,760 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-11-23 02:02:59,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 02:02:59,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 02:02:59,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 02:02:59,765 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-23 02:02:59,865 INFO L238 CfgBuilder]: Building ICFG [2024-11-23 02:02:59,867 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 02:02:59,970 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 02:02:59,970 INFO L287 CfgBuilder]: Performing block encoding [2024-11-23 02:03:00,053 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 02:03:00,053 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-23 02:03:00,053 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:03:00 BoogieIcfgContainer [2024-11-23 02:03:00,053 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 02:03:00,055 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 02:03:00,055 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 02:03:00,058 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 02:03:00,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:02:59" (1/3) ... [2024-11-23 02:03:00,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d799cb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:03:00, skipping insertion in model container [2024-11-23 02:03:00,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:02:59" (2/3) ... [2024-11-23 02:03:00,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d799cb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:03:00, skipping insertion in model container [2024-11-23 02:03:00,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:03:00" (3/3) ... [2024-11-23 02:03:00,060 INFO L112 eAbstractionObserver]: Analyzing ICFG unwind1-100.i [2024-11-23 02:03:00,073 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 02:03:00,073 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-23 02:03:00,073 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 02:03:00,116 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-23 02:03:00,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 27 transitions, 68 flow [2024-11-23 02:03:00,165 INFO L124 PetriNetUnfolderBase]: 2/25 cut-off events. [2024-11-23 02:03:00,165 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-23 02:03:00,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 25 events. 2/25 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 53 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2024-11-23 02:03:00,168 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 27 transitions, 68 flow [2024-11-23 02:03:00,170 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 23 transitions, 55 flow [2024-11-23 02:03:00,177 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 02:03:00,182 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;@132cd29e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 02:03:00,183 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-23 02:03:00,187 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 02:03:00,187 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2024-11-23 02:03:00,187 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-23 02:03:00,187 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:03:00,188 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-23 02:03:00,188 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-23 02:03:00,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:03:00,192 INFO L85 PathProgramCache]: Analyzing trace with hash 214452559, now seen corresponding path program 1 times [2024-11-23 02:03:00,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:03:00,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141383700] [2024-11-23 02:03:00,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:00,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:03:00,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:00,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:00,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:03:00,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141383700] [2024-11-23 02:03:00,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141383700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:03:00,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:03:00,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-23 02:03:00,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108369095] [2024-11-23 02:03:00,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:03:00,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 02:03:00,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:03:00,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 02:03:00,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 02:03:00,484 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-23 02:03:00,486 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 23 transitions, 55 flow. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-11-23 02:03:00,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:03:00,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-23 02:03:00,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:03:00,560 INFO L124 PetriNetUnfolderBase]: 82/192 cut-off events. [2024-11-23 02:03:00,560 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-11-23 02:03:00,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 192 events. 82/192 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 838 event pairs, 66 based on Foata normal form. 10/163 useless extension candidates. Maximal degree in co-relation 328. Up to 144 conditions per place. [2024-11-23 02:03:00,568 INFO L140 encePairwiseOnDemand]: 25/27 looper letters, 14 selfloop transitions, 1 changer transitions 0/22 dead transitions. [2024-11-23 02:03:00,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 22 transitions, 83 flow [2024-11-23 02:03:00,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 02:03:00,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 02:03:00,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 43 transitions. [2024-11-23 02:03:00,579 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5308641975308642 [2024-11-23 02:03:00,580 INFO L175 Difference]: Start difference. First operand has 28 places, 23 transitions, 55 flow. Second operand 3 states and 43 transitions. [2024-11-23 02:03:00,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 22 transitions, 83 flow [2024-11-23 02:03:00,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 22 transitions, 78 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-23 02:03:00,584 INFO L231 Difference]: Finished difference. Result has 26 places, 22 transitions, 50 flow [2024-11-23 02:03:00,586 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=26, PETRI_TRANSITIONS=22} [2024-11-23 02:03:00,588 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, -2 predicate places. [2024-11-23 02:03:00,588 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 22 transitions, 50 flow [2024-11-23 02:03:00,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-11-23 02:03:00,589 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:03:00,589 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-23 02:03:00,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 02:03:00,592 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-23 02:03:00,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:03:00,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1941905028, now seen corresponding path program 1 times [2024-11-23 02:03:00,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:03:00,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419628117] [2024-11-23 02:03:00,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:00,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:03:00,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:00,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:00,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:03:00,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419628117] [2024-11-23 02:03:00,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419628117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:03:00,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:03:00,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-23 02:03:00,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288167176] [2024-11-23 02:03:00,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:03:00,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 02:03:00,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:03:00,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 02:03:00,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 02:03:00,647 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-23 02:03:00,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 22 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-11-23 02:03:00,647 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:03:00,647 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-23 02:03:00,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:03:00,679 INFO L124 PetriNetUnfolderBase]: 68/162 cut-off events. [2024-11-23 02:03:00,679 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-23 02:03:00,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 162 events. 68/162 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 653 event pairs, 54 based on Foata normal form. 8/137 useless extension candidates. Maximal degree in co-relation 291. Up to 120 conditions per place. [2024-11-23 02:03:00,681 INFO L140 encePairwiseOnDemand]: 25/27 looper letters, 13 selfloop transitions, 1 changer transitions 0/21 dead transitions. [2024-11-23 02:03:00,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 21 transitions, 76 flow [2024-11-23 02:03:00,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 02:03:00,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 02:03:00,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 42 transitions. [2024-11-23 02:03:00,682 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5185185185185185 [2024-11-23 02:03:00,682 INFO L175 Difference]: Start difference. First operand has 26 places, 22 transitions, 50 flow. Second operand 3 states and 42 transitions. [2024-11-23 02:03:00,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 21 transitions, 76 flow [2024-11-23 02:03:00,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 21 transitions, 75 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 02:03:00,683 INFO L231 Difference]: Finished difference. Result has 26 places, 21 transitions, 49 flow [2024-11-23 02:03:00,683 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=49, PETRI_PLACES=26, PETRI_TRANSITIONS=21} [2024-11-23 02:03:00,684 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, -2 predicate places. [2024-11-23 02:03:00,684 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 21 transitions, 49 flow [2024-11-23 02:03:00,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-11-23 02:03:00,684 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:03:00,684 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:03:00,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 02:03:00,685 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-23 02:03:00,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:03:00,685 INFO L85 PathProgramCache]: Analyzing trace with hash -72726013, now seen corresponding path program 1 times [2024-11-23 02:03:00,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:03:00,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840602016] [2024-11-23 02:03:00,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:00,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:03:00,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:00,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:00,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:03:00,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840602016] [2024-11-23 02:03:00,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840602016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:03:00,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:03:00,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 02:03:00,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378734535] [2024-11-23 02:03:00,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:03:00,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 02:03:00,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:03:00,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 02:03:00,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 02:03:00,812 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-23 02:03:00,813 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 21 transitions, 49 flow. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2024-11-23 02:03:00,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:03:00,813 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-23 02:03:00,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:03:00,885 INFO L124 PetriNetUnfolderBase]: 72/157 cut-off events. [2024-11-23 02:03:00,885 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-23 02:03:00,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 157 events. 72/157 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 530 event pairs, 18 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 307. Up to 55 conditions per place. [2024-11-23 02:03:00,886 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 15 selfloop transitions, 3 changer transitions 13/36 dead transitions. [2024-11-23 02:03:00,886 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 36 transitions, 144 flow [2024-11-23 02:03:00,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 02:03:00,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-23 02:03:00,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 78 transitions. [2024-11-23 02:03:00,887 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5777777777777777 [2024-11-23 02:03:00,887 INFO L175 Difference]: Start difference. First operand has 26 places, 21 transitions, 49 flow. Second operand 5 states and 78 transitions. [2024-11-23 02:03:00,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 36 transitions, 144 flow [2024-11-23 02:03:00,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 36 transitions, 143 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 02:03:00,889 INFO L231 Difference]: Finished difference. Result has 32 places, 20 transitions, 61 flow [2024-11-23 02:03:00,889 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=61, PETRI_PLACES=32, PETRI_TRANSITIONS=20} [2024-11-23 02:03:00,890 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 4 predicate places. [2024-11-23 02:03:00,890 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 20 transitions, 61 flow [2024-11-23 02:03:00,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2024-11-23 02:03:00,890 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:03:00,890 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:03:00,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 02:03:00,890 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-23 02:03:00,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:03:00,891 INFO L85 PathProgramCache]: Analyzing trace with hash -492627500, now seen corresponding path program 1 times [2024-11-23 02:03:00,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:03:00,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692819547] [2024-11-23 02:03:00,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:00,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:03:00,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:00,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:00,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:03:00,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692819547] [2024-11-23 02:03:00,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692819547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:03:00,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:03:00,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 02:03:00,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669926614] [2024-11-23 02:03:00,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:03:00,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 02:03:00,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:03:00,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 02:03:00,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 02:03:00,942 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-23 02:03:00,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 20 transitions, 61 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2024-11-23 02:03:00,943 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:03:00,943 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-23 02:03:00,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:03:01,003 INFO L124 PetriNetUnfolderBase]: 50/121 cut-off events. [2024-11-23 02:03:01,004 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2024-11-23 02:03:01,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 121 events. 50/121 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 328 event pairs, 32 based on Foata normal form. 5/115 useless extension candidates. Maximal degree in co-relation 266. Up to 80 conditions per place. [2024-11-23 02:03:01,005 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 20 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2024-11-23 02:03:01,005 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 28 transitions, 129 flow [2024-11-23 02:03:01,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 02:03:01,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 02:03:01,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 61 transitions. [2024-11-23 02:03:01,006 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5648148148148148 [2024-11-23 02:03:01,006 INFO L175 Difference]: Start difference. First operand has 32 places, 20 transitions, 61 flow. Second operand 4 states and 61 transitions. [2024-11-23 02:03:01,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 28 transitions, 129 flow [2024-11-23 02:03:01,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 28 transitions, 115 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-23 02:03:01,008 INFO L231 Difference]: Finished difference. Result has 30 places, 22 transitions, 73 flow [2024-11-23 02:03:01,008 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=73, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2024-11-23 02:03:01,008 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 2 predicate places. [2024-11-23 02:03:01,008 INFO L471 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 73 flow [2024-11-23 02:03:01,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2024-11-23 02:03:01,009 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:03:01,009 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:03:01,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 02:03:01,011 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-23 02:03:01,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:03:01,012 INFO L85 PathProgramCache]: Analyzing trace with hash 37639074, now seen corresponding path program 1 times [2024-11-23 02:03:01,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:03:01,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256768186] [2024-11-23 02:03:01,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:01,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:03:01,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:01,085 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:01,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:03:01,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256768186] [2024-11-23 02:03:01,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256768186] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 02:03:01,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330990603] [2024-11-23 02:03:01,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:01,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:03:01,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:03:01,090 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 02:03:01,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 02:03:01,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:01,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 02:03:01,141 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:03:01,182 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:01,182 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 02:03:01,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330990603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:03:01,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 02:03:01,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-23 02:03:01,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489970062] [2024-11-23 02:03:01,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:03:01,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 02:03:01,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:03:01,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 02:03:01,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-23 02:03:01,191 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-23 02:03:01,192 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 22 transitions, 73 flow. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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) [2024-11-23 02:03:01,192 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:03:01,192 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-23 02:03:01,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:03:01,263 INFO L124 PetriNetUnfolderBase]: 45/111 cut-off events. [2024-11-23 02:03:01,264 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2024-11-23 02:03:01,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 111 events. 45/111 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 285 event pairs, 12 based on Foata normal form. 5/105 useless extension candidates. Maximal degree in co-relation 260. Up to 35 conditions per place. [2024-11-23 02:03:01,265 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 23 selfloop transitions, 5 changer transitions 0/33 dead transitions. [2024-11-23 02:03:01,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 33 transitions, 153 flow [2024-11-23 02:03:01,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 02:03:01,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 02:03:01,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 83 transitions. [2024-11-23 02:03:01,266 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5123456790123457 [2024-11-23 02:03:01,266 INFO L175 Difference]: Start difference. First operand has 30 places, 22 transitions, 73 flow. Second operand 6 states and 83 transitions. [2024-11-23 02:03:01,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 33 transitions, 153 flow [2024-11-23 02:03:01,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 33 transitions, 151 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 02:03:01,268 INFO L231 Difference]: Finished difference. Result has 33 places, 21 transitions, 77 flow [2024-11-23 02:03:01,268 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=77, PETRI_PLACES=33, PETRI_TRANSITIONS=21} [2024-11-23 02:03:01,269 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 5 predicate places. [2024-11-23 02:03:01,269 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 21 transitions, 77 flow [2024-11-23 02:03:01,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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) [2024-11-23 02:03:01,269 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:03:01,269 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:03:01,282 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 02:03:01,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:03:01,478 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-23 02:03:01,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:03:01,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1166811537, now seen corresponding path program 1 times [2024-11-23 02:03:01,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:03:01,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189006191] [2024-11-23 02:03:01,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:01,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:03:01,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:01,600 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:01,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:03:01,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189006191] [2024-11-23 02:03:01,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189006191] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 02:03:01,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089276663] [2024-11-23 02:03:01,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:01,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:03:01,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:03:01,603 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 02:03:01,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 02:03:01,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:01,651 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 02:03:01,652 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:03:01,678 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:01,678 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 02:03:01,719 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:01,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089276663] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 02:03:01,720 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 02:03:01,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-23 02:03:01,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961213644] [2024-11-23 02:03:01,720 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 02:03:01,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 02:03:01,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:03:01,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 02:03:01,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-23 02:03:01,740 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-23 02:03:01,741 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 21 transitions, 77 flow. Second operand has 12 states, 12 states have (on average 10.583333333333334) internal successors, (127), 12 states have internal predecessors, (127), 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) [2024-11-23 02:03:01,741 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:03:01,741 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-23 02:03:01,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:03:01,865 INFO L124 PetriNetUnfolderBase]: 75/186 cut-off events. [2024-11-23 02:03:01,865 INFO L125 PetriNetUnfolderBase]: For 142/142 co-relation queries the response was YES. [2024-11-23 02:03:01,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 485 conditions, 186 events. 75/186 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 485 event pairs, 27 based on Foata normal form. 15/195 useless extension candidates. Maximal degree in co-relation 475. Up to 70 conditions per place. [2024-11-23 02:03:01,867 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 37 selfloop transitions, 9 changer transitions 0/51 dead transitions. [2024-11-23 02:03:01,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 51 transitions, 261 flow [2024-11-23 02:03:01,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 02:03:01,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-23 02:03:01,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 139 transitions. [2024-11-23 02:03:01,868 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5148148148148148 [2024-11-23 02:03:01,868 INFO L175 Difference]: Start difference. First operand has 33 places, 21 transitions, 77 flow. Second operand 10 states and 139 transitions. [2024-11-23 02:03:01,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 51 transitions, 261 flow [2024-11-23 02:03:01,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 51 transitions, 235 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-11-23 02:03:01,870 INFO L231 Difference]: Finished difference. Result has 40 places, 27 transitions, 121 flow [2024-11-23 02:03:01,870 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=121, PETRI_PLACES=40, PETRI_TRANSITIONS=27} [2024-11-23 02:03:01,871 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 12 predicate places. [2024-11-23 02:03:01,871 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 27 transitions, 121 flow [2024-11-23 02:03:01,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.583333333333334) internal successors, (127), 12 states have internal predecessors, (127), 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) [2024-11-23 02:03:01,873 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:03:01,873 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:03:01,880 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 02:03:02,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-23 02:03:02,078 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-23 02:03:02,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:03:02,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1977723105, now seen corresponding path program 2 times [2024-11-23 02:03:02,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:03:02,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885517251] [2024-11-23 02:03:02,079 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 02:03:02,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:03:02,092 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 02:03:02,095 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 02:03:02,150 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-23 02:03:02,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:03:02,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885517251] [2024-11-23 02:03:02,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885517251] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 02:03:02,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582660942] [2024-11-23 02:03:02,152 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 02:03:02,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:03:02,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:03:02,154 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 02:03:02,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 02:03:02,197 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 02:03:02,197 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 02:03:02,197 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 02:03:02,199 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:03:02,241 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-23 02:03:02,241 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 02:03:02,360 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-23 02:03:02,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582660942] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 02:03:02,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 02:03:02,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-23 02:03:02,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284361747] [2024-11-23 02:03:02,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 02:03:02,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 02:03:02,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:03:02,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 02:03:02,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-23 02:03:02,410 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 27 [2024-11-23 02:03:02,411 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 27 transitions, 121 flow. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 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) [2024-11-23 02:03:02,411 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:03:02,411 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 27 [2024-11-23 02:03:02,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:03:02,518 INFO L124 PetriNetUnfolderBase]: 134/326 cut-off events. [2024-11-23 02:03:02,519 INFO L125 PetriNetUnfolderBase]: For 412/412 co-relation queries the response was YES. [2024-11-23 02:03:02,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 886 conditions, 326 events. 134/326 cut-off events. For 412/412 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1168 event pairs, 18 based on Foata normal form. 10/331 useless extension candidates. Maximal degree in co-relation 874. Up to 55 conditions per place. [2024-11-23 02:03:02,520 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 0 selfloop transitions, 0 changer transitions 54/54 dead transitions. [2024-11-23 02:03:02,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 54 transitions, 328 flow [2024-11-23 02:03:02,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 02:03:02,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-23 02:03:02,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 70 transitions. [2024-11-23 02:03:02,521 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.32407407407407407 [2024-11-23 02:03:02,521 INFO L175 Difference]: Start difference. First operand has 40 places, 27 transitions, 121 flow. Second operand 8 states and 70 transitions. [2024-11-23 02:03:02,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 54 transitions, 328 flow [2024-11-23 02:03:02,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 54 transitions, 288 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-23 02:03:02,527 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2024-11-23 02:03:02,527 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2024-11-23 02:03:02,528 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 12 predicate places. [2024-11-23 02:03:02,528 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2024-11-23 02:03:02,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 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) [2024-11-23 02:03:02,534 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-11-23 02:03:02,535 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 10 remaining) [2024-11-23 02:03:02,535 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-11-23 02:03:02,535 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-11-23 02:03:02,535 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2024-11-23 02:03:02,535 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2024-11-23 02:03:02,535 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-11-23 02:03:02,535 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-11-23 02:03:02,536 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-11-23 02:03:02,536 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-11-23 02:03:02,548 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 02:03:02,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:03:02,737 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2024-11-23 02:03:02,743 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-23 02:03:02,743 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 02:03:02,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:03:02 BasicIcfg [2024-11-23 02:03:02,748 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 02:03:02,752 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 02:03:02,752 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 02:03:02,752 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 02:03:02,753 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:03:00" (3/4) ... [2024-11-23 02:03:02,756 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-23 02:03:02,759 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f1 [2024-11-23 02:03:02,760 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f2 [2024-11-23 02:03:02,766 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2024-11-23 02:03:02,766 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-23 02:03:02,766 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-23 02:03:02,767 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-23 02:03:02,896 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-23 02:03:02,900 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-23 02:03:02,903 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 02:03:02,904 INFO L158 Benchmark]: Toolchain (without parser) took 3734.66ms. Allocated memory was 167.8MB in the beginning and 241.2MB in the end (delta: 73.4MB). Free memory was 94.2MB in the beginning and 128.1MB in the end (delta: -33.9MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. [2024-11-23 02:03:02,904 INFO L158 Benchmark]: CDTParser took 0.81ms. Allocated memory is still 167.8MB. Free memory is still 121.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 02:03:02,904 INFO L158 Benchmark]: CACSL2BoogieTranslator took 440.26ms. Allocated memory was 167.8MB in the beginning and 241.2MB in the end (delta: 73.4MB). Free memory was 93.9MB in the beginning and 203.0MB in the end (delta: -109.1MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2024-11-23 02:03:02,904 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.65ms. Allocated memory is still 241.2MB. Free memory was 203.0MB in the beginning and 201.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-23 02:03:02,904 INFO L158 Benchmark]: Boogie Preprocessor took 36.18ms. Allocated memory is still 241.2MB. Free memory was 201.0MB in the beginning and 198.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-23 02:03:02,905 INFO L158 Benchmark]: RCFGBuilder took 368.03ms. Allocated memory is still 241.2MB. Free memory was 198.9MB in the beginning and 177.9MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-23 02:03:02,905 INFO L158 Benchmark]: TraceAbstraction took 2695.88ms. Allocated memory is still 241.2MB. Free memory was 176.9MB in the beginning and 132.3MB in the end (delta: 44.6MB). Peak memory consumption was 45.7MB. Max. memory is 16.1GB. [2024-11-23 02:03:02,905 INFO L158 Benchmark]: Witness Printer took 151.47ms. Allocated memory is still 241.2MB. Free memory was 132.3MB in the beginning and 128.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-23 02:03:02,907 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81ms. Allocated memory is still 167.8MB. Free memory is still 121.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 440.26ms. Allocated memory was 167.8MB in the beginning and 241.2MB in the end (delta: 73.4MB). Free memory was 93.9MB in the beginning and 203.0MB in the end (delta: -109.1MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.65ms. Allocated memory is still 241.2MB. Free memory was 203.0MB in the beginning and 201.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.18ms. Allocated memory is still 241.2MB. Free memory was 201.0MB in the beginning and 198.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 368.03ms. Allocated memory is still 241.2MB. Free memory was 198.9MB in the beginning and 177.9MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2695.88ms. Allocated memory is still 241.2MB. Free memory was 176.9MB in the beginning and 132.3MB in the end (delta: 44.6MB). Peak memory consumption was 45.7MB. Max. memory is 16.1GB. * Witness Printer took 151.47ms. Allocated memory is still 241.2MB. Free memory was 132.3MB in the beginning and 128.1MB 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: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: 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 5 procedures, 45 locations, 10 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: 2.6s, OverallIterations: 7, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 253 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 214 mSDsluCounter, 94 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 82 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 542 IncrementalHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 12 mSDtfsCounter, 542 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=121occurred in iteration=6, InterpolantAutomatonStates: 39, 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, 128 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 153 ConstructedInterpolants, 0 QuantifiedInterpolants, 377 SizeOfPredicates, 9 NumberOfNonLiveVariables, 235 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 68/103 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! [2024-11-23 02:03:02,933 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