./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/chl-file-item-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-file-item-trans.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 408d8d7e58240f749ab11087191b04ec647cfea8447827b0505b793eb68a9c0a --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 02:41:10,609 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 02:41:10,693 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 02:41:10,697 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 02:41:10,698 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 02:41:10,725 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 02:41:10,726 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 02:41:10,726 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 02:41:10,727 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 02:41:10,728 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 02:41:10,728 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 02:41:10,729 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 02:41:10,729 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 02:41:10,733 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 02:41:10,733 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 02:41:10,733 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 02:41:10,734 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 02:41:10,734 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 02:41:10,734 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 02:41:10,734 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 02:41:10,735 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 02:41:10,735 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 02:41:10,737 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 02:41:10,737 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 02:41:10,738 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 02:41:10,738 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 02:41:10,738 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 02:41:10,738 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 02:41:10,739 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 02:41:10,739 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 02:41:10,739 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 02:41:10,739 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 02:41:10,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:41:10,740 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 02:41:10,740 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 02:41:10,741 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 02:41:10,741 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 02:41:10,742 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 02:41:10,742 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 02:41:10,742 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 02:41:10,743 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 02:41:10,743 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 02:41:10,743 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 408d8d7e58240f749ab11087191b04ec647cfea8447827b0505b793eb68a9c0a [2024-11-09 02:41:10,994 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 02:41:11,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 02:41:11,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 02:41:11,018 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 02:41:11,019 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 02:41:11,020 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-file-item-trans.wvr.c [2024-11-09 02:41:12,477 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 02:41:12,656 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 02:41:12,657 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-file-item-trans.wvr.c [2024-11-09 02:41:12,669 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77d81a66a/4200f90509584c4083f8bd9e313990eb/FLAGa64c03084 [2024-11-09 02:41:13,043 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77d81a66a/4200f90509584c4083f8bd9e313990eb [2024-11-09 02:41:13,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 02:41:13,048 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 02:41:13,050 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 02:41:13,051 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 02:41:13,058 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 02:41:13,059 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:41:13" (1/1) ... [2024-11-09 02:41:13,062 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16351cc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:41:13, skipping insertion in model container [2024-11-09 02:41:13,062 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:41:13" (1/1) ... [2024-11-09 02:41:13,085 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 02:41:13,303 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-file-item-trans.wvr.c[2856,2869] [2024-11-09 02:41:13,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:41:13,335 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 02:41:13,366 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-file-item-trans.wvr.c[2856,2869] [2024-11-09 02:41:13,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 02:41:13,414 INFO L204 MainTranslator]: Completed translation [2024-11-09 02:41:13,414 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:41:13 WrapperNode [2024-11-09 02:41:13,415 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 02:41:13,416 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 02:41:13,416 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 02:41:13,416 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 02:41:13,429 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:41:13" (1/1) ... [2024-11-09 02:41:13,438 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:41:13" (1/1) ... [2024-11-09 02:41:13,484 INFO L138 Inliner]: procedures = 22, calls = 15, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 192 [2024-11-09 02:41:13,487 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 02:41:13,488 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 02:41:13,488 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 02:41:13,488 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 02:41:13,498 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:41:13" (1/1) ... [2024-11-09 02:41:13,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:41:13" (1/1) ... [2024-11-09 02:41:13,502 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:41:13" (1/1) ... [2024-11-09 02:41:13,532 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]. [2024-11-09 02:41:13,532 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:41:13" (1/1) ... [2024-11-09 02:41:13,533 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:41:13" (1/1) ... [2024-11-09 02:41:13,538 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:41:13" (1/1) ... [2024-11-09 02:41:13,542 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:41:13" (1/1) ... [2024-11-09 02:41:13,546 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:41:13" (1/1) ... [2024-11-09 02:41:13,547 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:41:13" (1/1) ... [2024-11-09 02:41:13,549 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 02:41:13,552 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 02:41:13,553 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 02:41:13,553 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 02:41:13,554 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:41:13" (1/1) ... [2024-11-09 02:41:13,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 02:41:13,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 02:41:13,588 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) [2024-11-09 02:41:13,591 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 [2024-11-09 02:41:13,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 02:41:13,640 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-09 02:41:13,640 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-09 02:41:13,641 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-09 02:41:13,641 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-09 02:41:13,641 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-09 02:41:13,641 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-09 02:41:13,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 02:41:13,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 02:41:13,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 02:41:13,643 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 02:41:13,776 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 02:41:13,778 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 02:41:14,115 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 02:41:14,116 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 02:41:14,529 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 02:41:14,529 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 02:41:14,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:41:14 BoogieIcfgContainer [2024-11-09 02:41:14,530 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 02:41:14,533 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 02:41:14,535 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 02:41:14,539 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 02:41:14,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 02:41:13" (1/3) ... [2024-11-09 02:41:14,540 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f59ea7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:41:14, skipping insertion in model container [2024-11-09 02:41:14,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:41:13" (2/3) ... [2024-11-09 02:41:14,540 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f59ea7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:41:14, skipping insertion in model container [2024-11-09 02:41:14,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:41:14" (3/3) ... [2024-11-09 02:41:14,542 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-file-item-trans.wvr.c [2024-11-09 02:41:14,586 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 02:41:14,587 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 02:41:14,587 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 02:41:14,662 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-09 02:41:14,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 19 transitions, 59 flow [2024-11-09 02:41:14,738 INFO L124 PetriNetUnfolderBase]: 0/16 cut-off events. [2024-11-09 02:41:14,739 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-09 02:41:14,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 16 events. 0/16 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 6 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-09 02:41:14,745 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 19 transitions, 59 flow [2024-11-09 02:41:14,748 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 25 places, 15 transitions, 48 flow [2024-11-09 02:41:14,761 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 02:41:14,771 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;@3cca65a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 02:41:14,771 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-09 02:41:14,786 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 02:41:14,787 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2024-11-09 02:41:14,787 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-09 02:41:14,787 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:41:14,788 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:41:14,789 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 02:41:14,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:41:14,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1211990870, now seen corresponding path program 1 times [2024-11-09 02:41:14,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:41:14,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696583392] [2024-11-09 02:41:14,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:41:14,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:41:15,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:41:16,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:41:16,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:41:16,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696583392] [2024-11-09 02:41:16,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696583392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:41:16,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:41:16,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 02:41:16,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798323903] [2024-11-09 02:41:16,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:41:16,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 02:41:16,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:41:16,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 02:41:16,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 02:41:16,624 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 19 [2024-11-09 02:41:16,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 15 transitions, 48 flow. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 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) [2024-11-09 02:41:16,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:41:16,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 19 [2024-11-09 02:41:16,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:41:16,989 INFO L124 PetriNetUnfolderBase]: 32/85 cut-off events. [2024-11-09 02:41:16,989 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-11-09 02:41:16,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201 conditions, 85 events. 32/85 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 222 event pairs, 1 based on Foata normal form. 1/86 useless extension candidates. Maximal degree in co-relation 145. Up to 34 conditions per place. [2024-11-09 02:41:16,993 INFO L140 encePairwiseOnDemand]: 14/19 looper letters, 26 selfloop transitions, 6 changer transitions 5/38 dead transitions. [2024-11-09 02:41:16,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 38 transitions, 198 flow [2024-11-09 02:41:16,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 02:41:16,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 02:41:17,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 62 transitions. [2024-11-09 02:41:17,004 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.543859649122807 [2024-11-09 02:41:17,005 INFO L175 Difference]: Start difference. First operand has 25 places, 15 transitions, 48 flow. Second operand 6 states and 62 transitions. [2024-11-09 02:41:17,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 38 transitions, 198 flow [2024-11-09 02:41:17,008 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 38 transitions, 166 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-09 02:41:17,010 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 69 flow [2024-11-09 02:41:17,012 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=69, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2024-11-09 02:41:17,016 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 2 predicate places. [2024-11-09 02:41:17,016 INFO L471 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 69 flow [2024-11-09 02:41:17,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 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) [2024-11-09 02:41:17,017 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:41:17,017 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:41:17,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 02:41:17,018 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 02:41:17,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:41:17,019 INFO L85 PathProgramCache]: Analyzing trace with hash 509559352, now seen corresponding path program 2 times [2024-11-09 02:41:17,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:41:17,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282008478] [2024-11-09 02:41:17,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:41:17,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:41:17,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:41:17,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:41:17,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:41:17,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282008478] [2024-11-09 02:41:17,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282008478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:41:17,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:41:17,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 02:41:17,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957189784] [2024-11-09 02:41:17,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:41:17,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 02:41:17,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:41:17,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 02:41:17,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 02:41:17,996 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 19 [2024-11-09 02:41:17,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 69 flow. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 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) [2024-11-09 02:41:17,996 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:41:17,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 19 [2024-11-09 02:41:17,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:41:18,265 INFO L124 PetriNetUnfolderBase]: 32/100 cut-off events. [2024-11-09 02:41:18,265 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-09 02:41:18,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 100 events. 32/100 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 346 event pairs, 6 based on Foata normal form. 1/101 useless extension candidates. Maximal degree in co-relation 264. Up to 48 conditions per place. [2024-11-09 02:41:18,267 INFO L140 encePairwiseOnDemand]: 14/19 looper letters, 24 selfloop transitions, 9 changer transitions 3/37 dead transitions. [2024-11-09 02:41:18,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 37 transitions, 197 flow [2024-11-09 02:41:18,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 02:41:18,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-09 02:41:18,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 54 transitions. [2024-11-09 02:41:18,269 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5684210526315789 [2024-11-09 02:41:18,269 INFO L175 Difference]: Start difference. First operand has 27 places, 19 transitions, 69 flow. Second operand 5 states and 54 transitions. [2024-11-09 02:41:18,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 37 transitions, 197 flow [2024-11-09 02:41:18,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 37 transitions, 193 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-09 02:41:18,272 INFO L231 Difference]: Finished difference. Result has 31 places, 22 transitions, 116 flow [2024-11-09 02:41:18,272 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=116, PETRI_PLACES=31, PETRI_TRANSITIONS=22} [2024-11-09 02:41:18,273 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 6 predicate places. [2024-11-09 02:41:18,273 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 22 transitions, 116 flow [2024-11-09 02:41:18,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 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) [2024-11-09 02:41:18,273 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:41:18,274 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:41:18,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 02:41:18,274 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 02:41:18,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:41:18,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1388989672, now seen corresponding path program 3 times [2024-11-09 02:41:18,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:41:18,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172264726] [2024-11-09 02:41:18,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:41:18,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:41:18,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:41:19,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:41:19,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:41:19,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172264726] [2024-11-09 02:41:19,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172264726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:41:19,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:41:19,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 02:41:19,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264537252] [2024-11-09 02:41:19,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:41:19,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 02:41:19,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:41:19,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 02:41:19,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 02:41:19,127 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 19 [2024-11-09 02:41:19,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 22 transitions, 116 flow. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 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) [2024-11-09 02:41:19,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:41:19,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 19 [2024-11-09 02:41:19,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:41:19,397 INFO L124 PetriNetUnfolderBase]: 32/98 cut-off events. [2024-11-09 02:41:19,398 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES. [2024-11-09 02:41:19,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 352 conditions, 98 events. 32/98 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 333 event pairs, 1 based on Foata normal form. 1/99 useless extension candidates. Maximal degree in co-relation 197. Up to 44 conditions per place. [2024-11-09 02:41:19,402 INFO L140 encePairwiseOnDemand]: 14/19 looper letters, 23 selfloop transitions, 7 changer transitions 10/41 dead transitions. [2024-11-09 02:41:19,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 41 transitions, 258 flow [2024-11-09 02:41:19,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 02:41:19,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 02:41:19,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 62 transitions. [2024-11-09 02:41:19,406 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.543859649122807 [2024-11-09 02:41:19,406 INFO L175 Difference]: Start difference. First operand has 31 places, 22 transitions, 116 flow. Second operand 6 states and 62 transitions. [2024-11-09 02:41:19,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 41 transitions, 258 flow [2024-11-09 02:41:19,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 41 transitions, 251 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-09 02:41:19,411 INFO L231 Difference]: Finished difference. Result has 37 places, 20 transitions, 118 flow [2024-11-09 02:41:19,411 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=118, PETRI_PLACES=37, PETRI_TRANSITIONS=20} [2024-11-09 02:41:19,412 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 12 predicate places. [2024-11-09 02:41:19,412 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 20 transitions, 118 flow [2024-11-09 02:41:19,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 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) [2024-11-09 02:41:19,413 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:41:19,413 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:41:19,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 02:41:19,414 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 02:41:19,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:41:19,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1364866006, now seen corresponding path program 4 times [2024-11-09 02:41:19,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:41:19,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377419886] [2024-11-09 02:41:19,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:41:19,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:41:19,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:41:20,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:41:20,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:41:20,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377419886] [2024-11-09 02:41:20,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377419886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:41:20,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:41:20,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 02:41:20,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197349408] [2024-11-09 02:41:20,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:41:20,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 02:41:20,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:41:20,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 02:41:20,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 02:41:20,163 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 19 [2024-11-09 02:41:20,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 20 transitions, 118 flow. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 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) [2024-11-09 02:41:20,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:41:20,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 19 [2024-11-09 02:41:20,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:41:20,424 INFO L124 PetriNetUnfolderBase]: 16/54 cut-off events. [2024-11-09 02:41:20,424 INFO L125 PetriNetUnfolderBase]: For 106/106 co-relation queries the response was YES. [2024-11-09 02:41:20,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 54 events. 16/54 cut-off events. For 106/106 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 125 event pairs, 1 based on Foata normal form. 1/55 useless extension candidates. Maximal degree in co-relation 208. Up to 18 conditions per place. [2024-11-09 02:41:20,425 INFO L140 encePairwiseOnDemand]: 14/19 looper letters, 16 selfloop transitions, 5 changer transitions 11/33 dead transitions. [2024-11-09 02:41:20,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 33 transitions, 223 flow [2024-11-09 02:41:20,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 02:41:20,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 02:41:20,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 54 transitions. [2024-11-09 02:41:20,427 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47368421052631576 [2024-11-09 02:41:20,427 INFO L175 Difference]: Start difference. First operand has 37 places, 20 transitions, 118 flow. Second operand 6 states and 54 transitions. [2024-11-09 02:41:20,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 33 transitions, 223 flow [2024-11-09 02:41:20,429 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 33 transitions, 193 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-11-09 02:41:20,430 INFO L231 Difference]: Finished difference. Result has 36 places, 18 transitions, 89 flow [2024-11-09 02:41:20,430 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=89, PETRI_PLACES=36, PETRI_TRANSITIONS=18} [2024-11-09 02:41:20,431 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 11 predicate places. [2024-11-09 02:41:20,432 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 18 transitions, 89 flow [2024-11-09 02:41:20,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 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) [2024-11-09 02:41:20,432 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:41:20,432 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:41:20,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 02:41:20,432 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 02:41:20,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:41:20,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1413441480, now seen corresponding path program 5 times [2024-11-09 02:41:20,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:41:20,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416728214] [2024-11-09 02:41:20,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:41:20,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:41:20,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:41:21,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:41:21,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:41:21,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416728214] [2024-11-09 02:41:21,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416728214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:41:21,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:41:21,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 02:41:21,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674833840] [2024-11-09 02:41:21,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:41:21,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 02:41:21,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:41:21,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 02:41:21,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 02:41:21,060 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 19 [2024-11-09 02:41:21,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 18 transitions, 89 flow. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 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) [2024-11-09 02:41:21,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:41:21,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 19 [2024-11-09 02:41:21,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:41:21,280 INFO L124 PetriNetUnfolderBase]: 8/37 cut-off events. [2024-11-09 02:41:21,280 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-11-09 02:41:21,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 37 events. 8/37 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 55 event pairs, 0 based on Foata normal form. 1/38 useless extension candidates. Maximal degree in co-relation 129. Up to 17 conditions per place. [2024-11-09 02:41:21,281 INFO L140 encePairwiseOnDemand]: 14/19 looper letters, 13 selfloop transitions, 3 changer transitions 10/27 dead transitions. [2024-11-09 02:41:21,281 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 27 transitions, 163 flow [2024-11-09 02:41:21,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 02:41:21,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 02:41:21,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 51 transitions. [2024-11-09 02:41:21,283 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4473684210526316 [2024-11-09 02:41:21,283 INFO L175 Difference]: Start difference. First operand has 36 places, 18 transitions, 89 flow. Second operand 6 states and 51 transitions. [2024-11-09 02:41:21,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 27 transitions, 163 flow [2024-11-09 02:41:21,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 27 transitions, 141 flow, removed 1 selfloop flow, removed 7 redundant places. [2024-11-09 02:41:21,284 INFO L231 Difference]: Finished difference. Result has 33 places, 15 transitions, 57 flow [2024-11-09 02:41:21,284 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=69, PETRI_DIFFERENCE_MINUEND_PLACES=27, 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=6, PETRI_FLOW=57, PETRI_PLACES=33, PETRI_TRANSITIONS=15} [2024-11-09 02:41:21,285 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 8 predicate places. [2024-11-09 02:41:21,285 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 15 transitions, 57 flow [2024-11-09 02:41:21,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 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) [2024-11-09 02:41:21,286 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 02:41:21,286 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 02:41:21,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 02:41:21,286 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 02:41:21,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 02:41:21,287 INFO L85 PathProgramCache]: Analyzing trace with hash -558134826, now seen corresponding path program 6 times [2024-11-09 02:41:21,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 02:41:21,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902292715] [2024-11-09 02:41:21,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 02:41:21,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 02:41:21,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 02:41:21,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 02:41:21,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 02:41:21,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902292715] [2024-11-09 02:41:21,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902292715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 02:41:21,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 02:41:21,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 02:41:21,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189134263] [2024-11-09 02:41:21,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 02:41:21,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 02:41:21,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 02:41:21,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 02:41:21,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 02:41:21,931 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 19 [2024-11-09 02:41:21,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 15 transitions, 57 flow. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 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) [2024-11-09 02:41:21,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 02:41:21,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 19 [2024-11-09 02:41:21,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 02:41:22,104 INFO L124 PetriNetUnfolderBase]: 3/19 cut-off events. [2024-11-09 02:41:22,105 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-09 02:41:22,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 19 events. 3/19 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 1/20 useless extension candidates. Maximal degree in co-relation 61. Up to 7 conditions per place. [2024-11-09 02:41:22,105 INFO L140 encePairwiseOnDemand]: 14/19 looper letters, 0 selfloop transitions, 0 changer transitions 16/16 dead transitions. [2024-11-09 02:41:22,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 16 transitions, 89 flow [2024-11-09 02:41:22,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 02:41:22,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 02:41:22,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 41 transitions. [2024-11-09 02:41:22,107 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35964912280701755 [2024-11-09 02:41:22,108 INFO L175 Difference]: Start difference. First operand has 33 places, 15 transitions, 57 flow. Second operand 6 states and 41 transitions. [2024-11-09 02:41:22,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 16 transitions, 89 flow [2024-11-09 02:41:22,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 16 transitions, 74 flow, removed 1 selfloop flow, removed 7 redundant places. [2024-11-09 02:41:22,109 INFO L231 Difference]: Finished difference. Result has 27 places, 0 transitions, 0 flow [2024-11-09 02:41:22,109 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=19, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=22, 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=6, PETRI_FLOW=0, PETRI_PLACES=27, PETRI_TRANSITIONS=0} [2024-11-09 02:41:22,110 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 2 predicate places. [2024-11-09 02:41:22,111 INFO L471 AbstractCegarLoop]: Abstraction has has 27 places, 0 transitions, 0 flow [2024-11-09 02:41:22,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 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) [2024-11-09 02:41:22,113 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-11-09 02:41:22,114 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-11-09 02:41:22,114 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-09 02:41:22,114 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-09 02:41:22,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 02:41:22,115 INFO L407 BasicCegarLoop]: Path program histogram: [6] [2024-11-09 02:41:22,118 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 02:41:22,118 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 02:41:22,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 02:41:22 BasicIcfg [2024-11-09 02:41:22,128 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 02:41:22,129 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 02:41:22,129 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 02:41:22,129 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 02:41:22,130 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:41:14" (3/4) ... [2024-11-09 02:41:22,132 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 02:41:22,136 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-09 02:41:22,136 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-09 02:41:22,136 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-09 02:41:22,142 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 82 nodes and edges [2024-11-09 02:41:22,142 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-09 02:41:22,143 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-09 02:41:22,143 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 02:41:22,241 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 02:41:22,244 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 02:41:22,245 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 02:41:22,245 INFO L158 Benchmark]: Toolchain (without parser) took 9197.45ms. Allocated memory was 186.6MB in the beginning and 358.6MB in the end (delta: 172.0MB). Free memory was 117.6MB in the beginning and 182.3MB in the end (delta: -64.7MB). Peak memory consumption was 109.8MB. Max. memory is 16.1GB. [2024-11-09 02:41:22,246 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 113.2MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 02:41:22,246 INFO L158 Benchmark]: CACSL2BoogieTranslator took 364.50ms. Allocated memory is still 186.6MB. Free memory was 117.4MB in the beginning and 158.7MB in the end (delta: -41.3MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2024-11-09 02:41:22,246 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.74ms. Allocated memory is still 186.6MB. Free memory was 158.7MB in the beginning and 156.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 02:41:22,246 INFO L158 Benchmark]: Boogie Preprocessor took 61.57ms. Allocated memory is still 186.6MB. Free memory was 156.3MB in the beginning and 154.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 02:41:22,246 INFO L158 Benchmark]: RCFGBuilder took 978.63ms. Allocated memory is still 186.6MB. Free memory was 154.2MB in the beginning and 56.3MB in the end (delta: 97.8MB). Peak memory consumption was 98.6MB. Max. memory is 16.1GB. [2024-11-09 02:41:22,247 INFO L158 Benchmark]: TraceAbstraction took 7595.56ms. Allocated memory was 186.6MB in the beginning and 358.6MB in the end (delta: 172.0MB). Free memory was 55.6MB in the beginning and 187.5MB in the end (delta: -131.9MB). Peak memory consumption was 41.5MB. Max. memory is 16.1GB. [2024-11-09 02:41:22,247 INFO L158 Benchmark]: Witness Printer took 115.89ms. Allocated memory is still 358.6MB. Free memory was 187.5MB in the beginning and 182.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 02:41:22,248 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 113.2MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 364.50ms. Allocated memory is still 186.6MB. Free memory was 117.4MB in the beginning and 158.7MB in the end (delta: -41.3MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.74ms. Allocated memory is still 186.6MB. Free memory was 158.7MB in the beginning and 156.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.57ms. Allocated memory is still 186.6MB. Free memory was 156.3MB in the beginning and 154.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 978.63ms. Allocated memory is still 186.6MB. Free memory was 154.2MB in the beginning and 56.3MB in the end (delta: 97.8MB). Peak memory consumption was 98.6MB. Max. memory is 16.1GB. * TraceAbstraction took 7595.56ms. Allocated memory was 186.6MB in the beginning and 358.6MB in the end (delta: 172.0MB). Free memory was 55.6MB in the beginning and 187.5MB in the end (delta: -131.9MB). Peak memory consumption was 41.5MB. Max. memory is 16.1GB. * Witness Printer took 115.89ms. Allocated memory is still 358.6MB. Free memory was 187.5MB in the beginning and 182.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 83]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 29 locations, 4 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: 7.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 165 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 165 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 343 IncrementalHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 0 mSDtfsCounter, 343 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=118occurred in iteration=3, InterpolantAutomatonStates: 35, 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, 0.2s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 1224 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-09 02:41:22,279 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