./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-theta/wsc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-theta/wsc.i -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 cea92baab62ba0c35a952a0cf718b682864c9b4a52d803c2eb370964dcb75f16 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 08:32:30,482 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 08:32:30,543 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-12 08:32:30,549 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 08:32:30,550 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 08:32:30,578 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 08:32:30,579 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 08:32:30,579 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 08:32:30,580 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 08:32:30,581 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 08:32:30,582 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 08:32:30,582 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 08:32:30,582 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 08:32:30,583 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 08:32:30,583 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 08:32:30,586 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 08:32:30,586 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 08:32:30,587 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 08:32:30,587 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 08:32:30,587 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 08:32:30,587 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 08:32:30,588 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 08:32:30,589 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 08:32:30,589 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 08:32:30,589 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 08:32:30,589 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 08:32:30,590 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 08:32:30,590 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 08:32:30,590 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 08:32:30,590 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 08:32:30,591 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 08:32:30,591 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 08:32:30,591 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 08:32:30,591 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 08:32:30,591 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 08:32:30,591 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 08:32:30,592 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 08:32:30,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 08:32:30,593 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 08:32:30,593 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 08:32:30,593 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 08:32:30,594 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 08:32:30,594 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cea92baab62ba0c35a952a0cf718b682864c9b4a52d803c2eb370964dcb75f16 [2024-11-12 08:32:30,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 08:32:30,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 08:32:30,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 08:32:30,895 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 08:32:30,895 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 08:32:30,896 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-theta/wsc.i [2024-11-12 08:32:32,374 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 08:32:32,726 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 08:32:32,726 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-theta/wsc.i [2024-11-12 08:32:32,745 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7ff4d372/e784fb86ec3949abb1667299f4cf1faf/FLAG1a6004737 [2024-11-12 08:32:32,980 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7ff4d372/e784fb86ec3949abb1667299f4cf1faf [2024-11-12 08:32:32,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 08:32:32,984 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 08:32:32,985 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 08:32:32,986 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 08:32:32,990 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 08:32:32,991 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:32:32" (1/1) ... [2024-11-12 08:32:32,992 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@483511de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:32:32, skipping insertion in model container [2024-11-12 08:32:32,992 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:32:32" (1/1) ... [2024-11-12 08:32:33,063 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 08:32:33,433 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/pthread-theta/wsc.i[33949,33962] [2024-11-12 08:32:33,438 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 08:32:33,449 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 08:32:33,487 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/pthread-theta/wsc.i[33949,33962] [2024-11-12 08:32:33,488 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 08:32:33,517 INFO L204 MainTranslator]: Completed translation [2024-11-12 08:32:33,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:32:33 WrapperNode [2024-11-12 08:32:33,518 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 08:32:33,518 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 08:32:33,519 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 08:32:33,519 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 08:32:33,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:32:33" (1/1) ... [2024-11-12 08:32:33,540 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:32:33" (1/1) ... [2024-11-12 08:32:33,568 INFO L138 Inliner]: procedures = 171, calls = 26, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 122 [2024-11-12 08:32:33,569 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 08:32:33,572 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 08:32:33,572 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 08:32:33,572 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 08:32:33,581 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:32:33" (1/1) ... [2024-11-12 08:32:33,581 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:32:33" (1/1) ... [2024-11-12 08:32:33,586 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:32:33" (1/1) ... [2024-11-12 08:32:33,598 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 6]. The 0 writes are split as follows [0, 0]. [2024-11-12 08:32:33,598 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:32:33" (1/1) ... [2024-11-12 08:32:33,598 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:32:33" (1/1) ... [2024-11-12 08:32:33,602 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:32:33" (1/1) ... [2024-11-12 08:32:33,604 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:32:33" (1/1) ... [2024-11-12 08:32:33,605 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:32:33" (1/1) ... [2024-11-12 08:32:33,606 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:32:33" (1/1) ... [2024-11-12 08:32:33,608 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 08:32:33,609 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 08:32:33,609 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 08:32:33,609 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 08:32:33,610 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:32:33" (1/1) ... [2024-11-12 08:32:33,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 08:32:33,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 08:32:33,657 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) [2024-11-12 08:32:33,658 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 [2024-11-12 08:32:33,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 08:32:33,689 INFO L130 BoogieDeclarations]: Found specification of procedure f0 [2024-11-12 08:32:33,689 INFO L138 BoogieDeclarations]: Found implementation of procedure f0 [2024-11-12 08:32:33,689 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-11-12 08:32:33,690 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-11-12 08:32:33,690 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-11-12 08:32:33,690 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-11-12 08:32:33,690 INFO L130 BoogieDeclarations]: Found specification of procedure f3 [2024-11-12 08:32:33,690 INFO L138 BoogieDeclarations]: Found implementation of procedure f3 [2024-11-12 08:32:33,690 INFO L130 BoogieDeclarations]: Found specification of procedure f4 [2024-11-12 08:32:33,690 INFO L138 BoogieDeclarations]: Found implementation of procedure f4 [2024-11-12 08:32:33,690 INFO L130 BoogieDeclarations]: Found specification of procedure f5 [2024-11-12 08:32:33,690 INFO L138 BoogieDeclarations]: Found implementation of procedure f5 [2024-11-12 08:32:33,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 08:32:33,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 08:32:33,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 08:32:33,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 08:32:33,692 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 08:32:33,799 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 08:32:33,800 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 08:32:33,985 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 08:32:33,985 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 08:32:34,137 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 08:32:34,137 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 08:32:34,138 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:32:34 BoogieIcfgContainer [2024-11-12 08:32:34,138 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 08:32:34,139 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 08:32:34,139 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 08:32:34,142 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 08:32:34,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 08:32:32" (1/3) ... [2024-11-12 08:32:34,143 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2723d801 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:32:34, skipping insertion in model container [2024-11-12 08:32:34,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:32:33" (2/3) ... [2024-11-12 08:32:34,143 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2723d801 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:32:34, skipping insertion in model container [2024-11-12 08:32:34,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:32:34" (3/3) ... [2024-11-12 08:32:34,144 INFO L112 eAbstractionObserver]: Analyzing ICFG wsc.i [2024-11-12 08:32:34,158 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 08:32:34,158 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 08:32:34,158 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 08:32:34,205 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2024-11-12 08:32:34,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 49 transitions, 140 flow [2024-11-12 08:32:34,284 INFO L124 PetriNetUnfolderBase]: 0/43 cut-off events. [2024-11-12 08:32:34,285 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-12 08:32:34,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 43 events. 0/43 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-12 08:32:34,287 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 49 transitions, 140 flow [2024-11-12 08:32:34,293 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 42 transitions, 120 flow [2024-11-12 08:32:34,309 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 08:32:34,316 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;@5f0bb5da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 08:32:34,317 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-12 08:32:34,371 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 08:32:34,372 INFO L124 PetriNetUnfolderBase]: 0/41 cut-off events. [2024-11-12 08:32:34,372 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-12 08:32:34,373 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:32:34,374 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:32:34,374 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 4 more)] === [2024-11-12 08:32:34,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:32:34,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1475436085, now seen corresponding path program 1 times [2024-11-12 08:32:34,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:32:34,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297008580] [2024-11-12 08:32:34,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:32:34,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:32:34,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:32:34,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:32:34,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:32:34,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297008580] [2024-11-12 08:32:34,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297008580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:32:34,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:32:34,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 08:32:34,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945931736] [2024-11-12 08:32:34,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:32:34,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 08:32:34,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:32:34,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 08:32:34,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 08:32:34,785 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49 [2024-11-12 08:32:34,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 42 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-11-12 08:32:34,789 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:32:34,789 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49 [2024-11-12 08:32:34,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:32:35,806 INFO L124 PetriNetUnfolderBase]: 7314/10487 cut-off events. [2024-11-12 08:32:35,806 INFO L125 PetriNetUnfolderBase]: For 1083/1083 co-relation queries the response was YES. [2024-11-12 08:32:35,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21076 conditions, 10487 events. 7314/10487 cut-off events. For 1083/1083 co-relation queries the response was YES. Maximal size of possible extension queue 640. Compared 63541 event pairs, 5496 based on Foata normal form. 24/10494 useless extension candidates. Maximal degree in co-relation 20723. Up to 9584 conditions per place. [2024-11-12 08:32:35,882 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 39 selfloop transitions, 3 changer transitions 0/53 dead transitions. [2024-11-12 08:32:35,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 53 transitions, 238 flow [2024-11-12 08:32:35,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 08:32:35,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 08:32:35,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 97 transitions. [2024-11-12 08:32:35,893 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6598639455782312 [2024-11-12 08:32:35,895 INFO L175 Difference]: Start difference. First operand has 61 places, 42 transitions, 120 flow. Second operand 3 states and 97 transitions. [2024-11-12 08:32:35,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 53 transitions, 238 flow [2024-11-12 08:32:35,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 53 transitions, 206 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-11-12 08:32:35,910 INFO L231 Difference]: Finished difference. Result has 52 places, 44 transitions, 121 flow [2024-11-12 08:32:35,913 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=121, PETRI_PLACES=52, PETRI_TRANSITIONS=44} [2024-11-12 08:32:35,917 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -9 predicate places. [2024-11-12 08:32:35,918 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 44 transitions, 121 flow [2024-11-12 08:32:35,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-11-12 08:32:35,918 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:32:35,918 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:32:35,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 08:32:35,918 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 4 more)] === [2024-11-12 08:32:35,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:32:35,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1140421877, now seen corresponding path program 2 times [2024-11-12 08:32:35,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:32:35,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885833118] [2024-11-12 08:32:35,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:32:35,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:32:35,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:32:36,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:32:36,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:32:36,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885833118] [2024-11-12 08:32:36,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885833118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:32:36,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:32:36,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 08:32:36,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757992677] [2024-11-12 08:32:36,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:32:36,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 08:32:36,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:32:36,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 08:32:36,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 08:32:36,067 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49 [2024-11-12 08:32:36,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 44 transitions, 121 flow. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-11-12 08:32:36,067 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:32:36,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49 [2024-11-12 08:32:36,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:32:36,951 INFO L124 PetriNetUnfolderBase]: 7944/11746 cut-off events. [2024-11-12 08:32:36,951 INFO L125 PetriNetUnfolderBase]: For 2826/2826 co-relation queries the response was YES. [2024-11-12 08:32:36,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26023 conditions, 11746 events. 7944/11746 cut-off events. For 2826/2826 co-relation queries the response was YES. Maximal size of possible extension queue 710. Compared 77949 event pairs, 2796 based on Foata normal form. 1063/12462 useless extension candidates. Maximal degree in co-relation 9497. Up to 6511 conditions per place. [2024-11-12 08:32:37,009 INFO L140 encePairwiseOnDemand]: 43/49 looper letters, 52 selfloop transitions, 5 changer transitions 0/68 dead transitions. [2024-11-12 08:32:37,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 68 transitions, 299 flow [2024-11-12 08:32:37,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 08:32:37,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 08:32:37,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 109 transitions. [2024-11-12 08:32:37,012 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7414965986394558 [2024-11-12 08:32:37,012 INFO L175 Difference]: Start difference. First operand has 52 places, 44 transitions, 121 flow. Second operand 3 states and 109 transitions. [2024-11-12 08:32:37,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 68 transitions, 299 flow [2024-11-12 08:32:37,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 68 transitions, 296 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 08:32:37,015 INFO L231 Difference]: Finished difference. Result has 55 places, 47 transitions, 160 flow [2024-11-12 08:32:37,016 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=160, PETRI_PLACES=55, PETRI_TRANSITIONS=47} [2024-11-12 08:32:37,016 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -6 predicate places. [2024-11-12 08:32:37,016 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 47 transitions, 160 flow [2024-11-12 08:32:37,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-11-12 08:32:37,017 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:32:37,017 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:32:37,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 08:32:37,017 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 4 more)] === [2024-11-12 08:32:37,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:32:37,018 INFO L85 PathProgramCache]: Analyzing trace with hash -812808633, now seen corresponding path program 3 times [2024-11-12 08:32:37,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:32:37,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739458691] [2024-11-12 08:32:37,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:32:37,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:32:37,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:32:37,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:32:37,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:32:37,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739458691] [2024-11-12 08:32:37,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739458691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:32:37,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:32:37,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 08:32:37,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7058717] [2024-11-12 08:32:37,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:32:37,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 08:32:37,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:32:37,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 08:32:37,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 08:32:37,098 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49 [2024-11-12 08:32:37,099 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 47 transitions, 160 flow. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-11-12 08:32:37,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:32:37,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49 [2024-11-12 08:32:37,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:32:38,064 INFO L124 PetriNetUnfolderBase]: 9485/13612 cut-off events. [2024-11-12 08:32:38,064 INFO L125 PetriNetUnfolderBase]: For 8861/8995 co-relation queries the response was YES. [2024-11-12 08:32:38,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33801 conditions, 13612 events. 9485/13612 cut-off events. For 8861/8995 co-relation queries the response was YES. Maximal size of possible extension queue 694. Compared 82417 event pairs, 5211 based on Foata normal form. 48/13521 useless extension candidates. Maximal degree in co-relation 10826. Up to 12751 conditions per place. [2024-11-12 08:32:38,134 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 42 selfloop transitions, 3 changer transitions 0/59 dead transitions. [2024-11-12 08:32:38,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 59 transitions, 285 flow [2024-11-12 08:32:38,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 08:32:38,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 08:32:38,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 95 transitions. [2024-11-12 08:32:38,136 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6462585034013606 [2024-11-12 08:32:38,136 INFO L175 Difference]: Start difference. First operand has 55 places, 47 transitions, 160 flow. Second operand 3 states and 95 transitions. [2024-11-12 08:32:38,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 59 transitions, 285 flow [2024-11-12 08:32:38,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 59 transitions, 263 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-11-12 08:32:38,146 INFO L231 Difference]: Finished difference. Result has 56 places, 49 transitions, 161 flow [2024-11-12 08:32:38,147 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=161, PETRI_PLACES=56, PETRI_TRANSITIONS=49} [2024-11-12 08:32:38,147 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -5 predicate places. [2024-11-12 08:32:38,147 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 49 transitions, 161 flow [2024-11-12 08:32:38,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-11-12 08:32:38,148 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:32:38,148 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:32:38,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 08:32:38,148 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 4 more)] === [2024-11-12 08:32:38,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:32:38,149 INFO L85 PathProgramCache]: Analyzing trace with hash 180387377, now seen corresponding path program 4 times [2024-11-12 08:32:38,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:32:38,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015183134] [2024-11-12 08:32:38,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:32:38,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:32:38,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:32:38,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:32:38,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:32:38,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015183134] [2024-11-12 08:32:38,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015183134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:32:38,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:32:38,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 08:32:38,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638581439] [2024-11-12 08:32:38,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:32:38,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 08:32:38,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:32:38,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 08:32:38,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 08:32:38,205 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49 [2024-11-12 08:32:38,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 49 transitions, 161 flow. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-11-12 08:32:38,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:32:38,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49 [2024-11-12 08:32:38,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:32:39,784 INFO L124 PetriNetUnfolderBase]: 14795/21087 cut-off events. [2024-11-12 08:32:39,784 INFO L125 PetriNetUnfolderBase]: For 10034/10297 co-relation queries the response was YES. [2024-11-12 08:32:39,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51220 conditions, 21087 events. 14795/21087 cut-off events. For 10034/10297 co-relation queries the response was YES. Maximal size of possible extension queue 1156. Compared 137588 event pairs, 6642 based on Foata normal form. 839/21281 useless extension candidates. Maximal degree in co-relation 21733. Up to 10887 conditions per place. [2024-11-12 08:32:39,899 INFO L140 encePairwiseOnDemand]: 46/49 looper letters, 55 selfloop transitions, 2 changer transitions 0/73 dead transitions. [2024-11-12 08:32:39,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 73 transitions, 350 flow [2024-11-12 08:32:39,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 08:32:39,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 08:32:39,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 105 transitions. [2024-11-12 08:32:39,903 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2024-11-12 08:32:39,903 INFO L175 Difference]: Start difference. First operand has 56 places, 49 transitions, 161 flow. Second operand 3 states and 105 transitions. [2024-11-12 08:32:39,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 73 transitions, 350 flow [2024-11-12 08:32:39,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 73 transitions, 347 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 08:32:39,905 INFO L231 Difference]: Finished difference. Result has 58 places, 50 transitions, 170 flow [2024-11-12 08:32:39,905 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=58, PETRI_TRANSITIONS=50} [2024-11-12 08:32:39,907 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -3 predicate places. [2024-11-12 08:32:39,908 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 50 transitions, 170 flow [2024-11-12 08:32:39,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-11-12 08:32:39,908 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:32:39,908 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:32:39,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 08:32:39,910 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 4 more)] === [2024-11-12 08:32:39,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:32:39,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1396104417, now seen corresponding path program 5 times [2024-11-12 08:32:39,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:32:39,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122265573] [2024-11-12 08:32:39,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:32:39,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:32:39,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:32:39,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:32:39,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:32:39,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122265573] [2024-11-12 08:32:39,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122265573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:32:39,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:32:39,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 08:32:39,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937350293] [2024-11-12 08:32:39,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:32:39,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 08:32:39,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:32:39,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 08:32:39,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 08:32:39,990 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49 [2024-11-12 08:32:39,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 50 transitions, 170 flow. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-11-12 08:32:39,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:32:39,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49 [2024-11-12 08:32:39,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:32:40,951 INFO L124 PetriNetUnfolderBase]: 8531/13509 cut-off events. [2024-11-12 08:32:40,952 INFO L125 PetriNetUnfolderBase]: For 7055/7293 co-relation queries the response was YES. [2024-11-12 08:32:40,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32298 conditions, 13509 events. 8531/13509 cut-off events. For 7055/7293 co-relation queries the response was YES. Maximal size of possible extension queue 757. Compared 97252 event pairs, 4087 based on Foata normal form. 821/14101 useless extension candidates. Maximal degree in co-relation 13690. Up to 7292 conditions per place. [2024-11-12 08:32:41,018 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 49 selfloop transitions, 3 changer transitions 0/66 dead transitions. [2024-11-12 08:32:41,018 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 66 transitions, 309 flow [2024-11-12 08:32:41,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 08:32:41,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 08:32:41,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2024-11-12 08:32:41,020 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7074829931972789 [2024-11-12 08:32:41,020 INFO L175 Difference]: Start difference. First operand has 58 places, 50 transitions, 170 flow. Second operand 3 states and 104 transitions. [2024-11-12 08:32:41,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 66 transitions, 309 flow [2024-11-12 08:32:41,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 66 transitions, 307 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 08:32:41,033 INFO L231 Difference]: Finished difference. Result has 59 places, 47 transitions, 158 flow [2024-11-12 08:32:41,033 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=59, PETRI_TRANSITIONS=47} [2024-11-12 08:32:41,033 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -2 predicate places. [2024-11-12 08:32:41,034 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 47 transitions, 158 flow [2024-11-12 08:32:41,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-11-12 08:32:41,034 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:32:41,034 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:32:41,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 08:32:41,034 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 4 more)] === [2024-11-12 08:32:41,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:32:41,035 INFO L85 PathProgramCache]: Analyzing trace with hash -303885443, now seen corresponding path program 6 times [2024-11-12 08:32:41,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:32:41,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803516129] [2024-11-12 08:32:41,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:32:41,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:32:41,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:32:41,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:32:41,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:32:41,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803516129] [2024-11-12 08:32:41,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803516129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:32:41,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:32:41,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 08:32:41,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980324004] [2024-11-12 08:32:41,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:32:41,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 08:32:41,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:32:41,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 08:32:41,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 08:32:41,139 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49 [2024-11-12 08:32:41,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 47 transitions, 158 flow. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-11-12 08:32:41,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:32:41,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49 [2024-11-12 08:32:41,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:32:42,357 INFO L124 PetriNetUnfolderBase]: 12071/17876 cut-off events. [2024-11-12 08:32:42,358 INFO L125 PetriNetUnfolderBase]: For 7478/7736 co-relation queries the response was YES. [2024-11-12 08:32:42,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43456 conditions, 17876 events. 12071/17876 cut-off events. For 7478/7736 co-relation queries the response was YES. Maximal size of possible extension queue 953. Compared 120599 event pairs, 7065 based on Foata normal form. 597/17670 useless extension candidates. Maximal degree in co-relation 16050. Up to 9784 conditions per place. [2024-11-12 08:32:42,424 INFO L140 encePairwiseOnDemand]: 46/49 looper letters, 47 selfloop transitions, 2 changer transitions 0/65 dead transitions. [2024-11-12 08:32:42,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 65 transitions, 313 flow [2024-11-12 08:32:42,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 08:32:42,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 08:32:42,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 101 transitions. [2024-11-12 08:32:42,426 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6870748299319728 [2024-11-12 08:32:42,426 INFO L175 Difference]: Start difference. First operand has 59 places, 47 transitions, 158 flow. Second operand 3 states and 101 transitions. [2024-11-12 08:32:42,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 65 transitions, 313 flow [2024-11-12 08:32:42,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 65 transitions, 310 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 08:32:42,429 INFO L231 Difference]: Finished difference. Result has 61 places, 48 transitions, 167 flow [2024-11-12 08:32:42,429 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=167, PETRI_PLACES=61, PETRI_TRANSITIONS=48} [2024-11-12 08:32:42,430 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 0 predicate places. [2024-11-12 08:32:42,430 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 48 transitions, 167 flow [2024-11-12 08:32:42,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-11-12 08:32:42,431 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:32:42,431 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:32:42,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 08:32:42,431 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-12 08:32:42,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:32:42,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1417580093, now seen corresponding path program 7 times [2024-11-12 08:32:42,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:32:42,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678796615] [2024-11-12 08:32:42,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:32:42,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:32:42,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:32:42,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:32:42,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:32:42,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678796615] [2024-11-12 08:32:42,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678796615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:32:42,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:32:42,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 08:32:42,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956216889] [2024-11-12 08:32:42,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:32:42,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 08:32:42,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:32:42,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 08:32:42,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 08:32:42,512 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49 [2024-11-12 08:32:42,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 48 transitions, 167 flow. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-11-12 08:32:42,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:32:42,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49 [2024-11-12 08:32:42,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:32:43,975 INFO L124 PetriNetUnfolderBase]: 15915/24170 cut-off events. [2024-11-12 08:32:43,975 INFO L125 PetriNetUnfolderBase]: For 12050/12207 co-relation queries the response was YES. [2024-11-12 08:32:44,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59912 conditions, 24170 events. 15915/24170 cut-off events. For 12050/12207 co-relation queries the response was YES. Maximal size of possible extension queue 1314. Compared 175952 event pairs, 9310 based on Foata normal form. 848/24250 useless extension candidates. Maximal degree in co-relation 31991. Up to 13864 conditions per place. [2024-11-12 08:32:44,059 INFO L140 encePairwiseOnDemand]: 46/49 looper letters, 49 selfloop transitions, 2 changer transitions 5/68 dead transitions. [2024-11-12 08:32:44,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 68 transitions, 331 flow [2024-11-12 08:32:44,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 08:32:44,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 08:32:44,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions. [2024-11-12 08:32:44,061 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7006802721088435 [2024-11-12 08:32:44,061 INFO L175 Difference]: Start difference. First operand has 61 places, 48 transitions, 167 flow. Second operand 3 states and 103 transitions. [2024-11-12 08:32:44,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 68 transitions, 331 flow [2024-11-12 08:32:44,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 68 transitions, 329 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 08:32:44,076 INFO L231 Difference]: Finished difference. Result has 63 places, 44 transitions, 154 flow [2024-11-12 08:32:44,076 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=63, PETRI_TRANSITIONS=44} [2024-11-12 08:32:44,077 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 2 predicate places. [2024-11-12 08:32:44,077 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 44 transitions, 154 flow [2024-11-12 08:32:44,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-11-12 08:32:44,077 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 08:32:44,078 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 08:32:44,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 08:32:44,078 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-12 08:32:44,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 08:32:44,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1459743561, now seen corresponding path program 8 times [2024-11-12 08:32:44,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 08:32:44,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623530482] [2024-11-12 08:32:44,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 08:32:44,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 08:32:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 08:32:44,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 08:32:44,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 08:32:44,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623530482] [2024-11-12 08:32:44,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623530482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 08:32:44,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 08:32:44,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 08:32:44,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245116741] [2024-11-12 08:32:44,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 08:32:44,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 08:32:44,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 08:32:44,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 08:32:44,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 08:32:44,139 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49 [2024-11-12 08:32:44,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 44 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-11-12 08:32:44,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 08:32:44,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49 [2024-11-12 08:32:44,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 08:32:44,933 INFO L124 PetriNetUnfolderBase]: 8846/13272 cut-off events. [2024-11-12 08:32:44,934 INFO L125 PetriNetUnfolderBase]: For 6346/6509 co-relation queries the response was YES. [2024-11-12 08:32:44,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33641 conditions, 13272 events. 8846/13272 cut-off events. For 6346/6509 co-relation queries the response was YES. Maximal size of possible extension queue 681. Compared 85696 event pairs, 5622 based on Foata normal form. 518/13267 useless extension candidates. Maximal degree in co-relation 19438. Up to 7957 conditions per place. [2024-11-12 08:32:44,970 INFO L140 encePairwiseOnDemand]: 47/49 looper letters, 0 selfloop transitions, 0 changer transitions 53/53 dead transitions. [2024-11-12 08:32:44,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 53 transitions, 264 flow [2024-11-12 08:32:44,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 08:32:44,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 08:32:44,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 93 transitions. [2024-11-12 08:32:44,971 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6326530612244898 [2024-11-12 08:32:44,972 INFO L175 Difference]: Start difference. First operand has 63 places, 44 transitions, 154 flow. Second operand 3 states and 93 transitions. [2024-11-12 08:32:44,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 53 transitions, 264 flow [2024-11-12 08:32:44,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 53 transitions, 256 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-12 08:32:44,980 INFO L231 Difference]: Finished difference. Result has 60 places, 0 transitions, 0 flow [2024-11-12 08:32:44,981 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=60, PETRI_TRANSITIONS=0} [2024-11-12 08:32:44,982 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -1 predicate places. [2024-11-12 08:32:44,983 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 0 transitions, 0 flow [2024-11-12 08:32:44,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-11-12 08:32:44,985 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2024-11-12 08:32:44,986 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 7 remaining) [2024-11-12 08:32:44,987 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-11-12 08:32:44,987 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-11-12 08:32:44,987 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-11-12 08:32:44,991 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2024-11-12 08:32:44,991 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2024-11-12 08:32:44,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 08:32:44,992 INFO L421 BasicCegarLoop]: Path program histogram: [8] [2024-11-12 08:32:44,994 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-12 08:32:44,994 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 08:32:45,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 08:32:45 BasicIcfg [2024-11-12 08:32:45,002 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 08:32:45,002 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 08:32:45,003 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 08:32:45,003 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 08:32:45,004 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:32:34" (3/4) ... [2024-11-12 08:32:45,006 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-12 08:32:45,008 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f0 [2024-11-12 08:32:45,008 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f1 [2024-11-12 08:32:45,009 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f2 [2024-11-12 08:32:45,009 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f3 [2024-11-12 08:32:45,009 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f4 [2024-11-12 08:32:45,009 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f5 [2024-11-12 08:32:45,012 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 57 nodes and edges [2024-11-12 08:32:45,013 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-12 08:32:45,014 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-12 08:32:45,014 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-12 08:32:45,014 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-12 08:32:45,091 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 08:32:45,091 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-12 08:32:45,091 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 08:32:45,093 INFO L158 Benchmark]: Toolchain (without parser) took 12108.24ms. Allocated memory was 153.1MB in the beginning and 8.7GB in the end (delta: 8.6GB). Free memory was 82.5MB in the beginning and 7.9GB in the end (delta: -7.8GB). Peak memory consumption was 784.2MB. Max. memory is 16.1GB. [2024-11-12 08:32:45,093 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 153.1MB. Free memory is still 113.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 08:32:45,093 INFO L158 Benchmark]: CACSL2BoogieTranslator took 532.42ms. Allocated memory is still 153.1MB. Free memory was 82.3MB in the beginning and 107.1MB in the end (delta: -24.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-12 08:32:45,094 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.78ms. Allocated memory is still 153.1MB. Free memory was 107.1MB in the beginning and 105.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 08:32:45,095 INFO L158 Benchmark]: Boogie Preprocessor took 36.56ms. Allocated memory is still 153.1MB. Free memory was 105.0MB in the beginning and 102.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 08:32:45,097 INFO L158 Benchmark]: RCFGBuilder took 528.98ms. Allocated memory is still 153.1MB. Free memory was 102.4MB in the beginning and 65.2MB in the end (delta: 37.2MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-11-12 08:32:45,097 INFO L158 Benchmark]: TraceAbstraction took 10862.89ms. Allocated memory was 153.1MB in the beginning and 8.7GB in the end (delta: 8.6GB). Free memory was 64.6MB in the beginning and 7.9GB in the end (delta: -7.8GB). Peak memory consumption was 996.3MB. Max. memory is 16.1GB. [2024-11-12 08:32:45,097 INFO L158 Benchmark]: Witness Printer took 89.11ms. Allocated memory is still 8.7GB. Free memory was 7.9GB in the beginning and 7.9GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 08:32:45,100 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 153.1MB. Free memory is still 113.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 532.42ms. Allocated memory is still 153.1MB. Free memory was 82.3MB in the beginning and 107.1MB in the end (delta: -24.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.78ms. Allocated memory is still 153.1MB. Free memory was 107.1MB in the beginning and 105.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.56ms. Allocated memory is still 153.1MB. Free memory was 105.0MB in the beginning and 102.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 528.98ms. Allocated memory is still 153.1MB. Free memory was 102.4MB in the beginning and 65.2MB in the end (delta: 37.2MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 10862.89ms. Allocated memory was 153.1MB in the beginning and 8.7GB in the end (delta: 8.6GB). Free memory was 64.6MB in the beginning and 7.9GB in the end (delta: -7.8GB). Peak memory consumption was 996.3MB. Max. memory is 16.1GB. * Witness Printer took 89.11ms. Allocated memory is still 8.7GB. Free memory was 7.9GB in the beginning and 7.9GB 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: 802]: 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 13 procedures, 84 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 10.8s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 106 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 99 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 543 IncrementalHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 7 mSDtfsCounter, 543 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred in iteration=4, InterpolantAutomatonStates: 24, 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, 0.6s InterpolantComputationTime, 336 NumberOfCodeBlocks, 336 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 328 ConstructedInterpolants, 0 QuantifiedInterpolants, 446 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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! [2024-11-12 08:32:45,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE