./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-4.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 d87195cdf1d0fd4bcadf67f37be6f46388ea22a2ec77b383d012327e126a2173 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 07:10:03,469 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 07:10:03,523 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-13 07:10:03,528 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 07:10:03,528 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 07:10:03,551 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 07:10:03,552 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 07:10:03,552 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 07:10:03,552 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 07:10:03,555 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 07:10:03,556 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 07:10:03,556 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 07:10:03,556 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 07:10:03,557 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 07:10:03,557 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 07:10:03,557 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 07:10:03,557 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 07:10:03,559 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 07:10:03,559 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 07:10:03,559 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 07:10:03,559 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 07:10:03,560 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 07:10:03,560 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 07:10:03,560 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 07:10:03,560 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 07:10:03,560 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 07:10:03,560 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 07:10:03,560 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 07:10:03,561 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 07:10:03,561 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 07:10:03,561 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 07:10:03,561 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 07:10:03,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 07:10:03,561 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 07:10:03,562 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 07:10:03,562 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 07:10:03,562 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 07:10:03,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 07:10:03,564 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 07:10:03,564 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 07:10:03,564 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 07:10:03,564 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 07:10:03,565 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d87195cdf1d0fd4bcadf67f37be6f46388ea22a2ec77b383d012327e126a2173 [2024-10-13 07:10:03,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 07:10:03,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 07:10:03,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 07:10:03,811 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 07:10:03,811 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 07:10:03,812 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c [2024-10-13 07:10:05,154 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 07:10:05,336 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 07:10:05,338 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c [2024-10-13 07:10:05,348 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59aa9041c/0ade1f256ef5465b893df3711b44e963/FLAG307b2ffd5 [2024-10-13 07:10:05,362 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59aa9041c/0ade1f256ef5465b893df3711b44e963 [2024-10-13 07:10:05,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 07:10:05,366 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 07:10:05,368 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 07:10:05,368 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 07:10:05,373 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 07:10:05,373 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:10:05" (1/1) ... [2024-10-13 07:10:05,374 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67222575 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:05, skipping insertion in model container [2024-10-13 07:10:05,374 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:10:05" (1/1) ... [2024-10-13 07:10:05,397 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 07:10:05,563 WARN L248 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/parallel-ticket-4.wvr.c[3578,3591] [2024-10-13 07:10:05,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 07:10:05,580 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 07:10:05,597 WARN L248 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/parallel-ticket-4.wvr.c[3578,3591] [2024-10-13 07:10:05,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 07:10:05,612 INFO L204 MainTranslator]: Completed translation [2024-10-13 07:10:05,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:05 WrapperNode [2024-10-13 07:10:05,616 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 07:10:05,617 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 07:10:05,617 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 07:10:05,617 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 07:10:05,644 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:05" (1/1) ... [2024-10-13 07:10:05,659 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:05" (1/1) ... [2024-10-13 07:10:05,704 INFO L138 Inliner]: procedures = 22, calls = 50, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 186 [2024-10-13 07:10:05,708 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 07:10:05,709 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 07:10:05,710 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 07:10:05,710 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 07:10:05,722 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:05" (1/1) ... [2024-10-13 07:10:05,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:05" (1/1) ... [2024-10-13 07:10:05,725 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:05" (1/1) ... [2024-10-13 07:10:05,736 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]. [2024-10-13 07:10:05,736 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:05" (1/1) ... [2024-10-13 07:10:05,737 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:05" (1/1) ... [2024-10-13 07:10:05,740 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:05" (1/1) ... [2024-10-13 07:10:05,741 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:05" (1/1) ... [2024-10-13 07:10:05,742 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:05" (1/1) ... [2024-10-13 07:10:05,743 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:05" (1/1) ... [2024-10-13 07:10:05,745 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 07:10:05,745 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 07:10:05,745 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 07:10:05,745 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 07:10:05,746 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:05" (1/1) ... [2024-10-13 07:10:05,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 07:10:05,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:10:05,794 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) [2024-10-13 07:10:05,797 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 [2024-10-13 07:10:05,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 07:10:05,832 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-13 07:10:05,833 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-13 07:10:05,833 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-13 07:10:05,833 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-13 07:10:05,833 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-13 07:10:05,833 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-13 07:10:05,833 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-10-13 07:10:05,833 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-10-13 07:10:05,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 07:10:05,833 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-13 07:10:05,834 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-13 07:10:05,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 07:10:05,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 07:10:05,835 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 07:10:05,914 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 07:10:05,916 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 07:10:06,109 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 07:10:06,109 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 07:10:06,266 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 07:10:06,267 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 07:10:06,267 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:10:06 BoogieIcfgContainer [2024-10-13 07:10:06,267 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 07:10:06,268 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 07:10:06,269 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 07:10:06,271 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 07:10:06,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:10:05" (1/3) ... [2024-10-13 07:10:06,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d52dd06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:10:06, skipping insertion in model container [2024-10-13 07:10:06,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:10:05" (2/3) ... [2024-10-13 07:10:06,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d52dd06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:10:06, skipping insertion in model container [2024-10-13 07:10:06,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:10:06" (3/3) ... [2024-10-13 07:10:06,276 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-4.wvr.c [2024-10-13 07:10:06,288 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 07:10:06,288 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-13 07:10:06,288 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 07:10:06,328 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-13 07:10:06,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 45 transitions, 118 flow [2024-10-13 07:10:06,381 INFO L124 PetriNetUnfolderBase]: 0/41 cut-off events. [2024-10-13 07:10:06,382 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-13 07:10:06,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 41 events. 0/41 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 80 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-10-13 07:10:06,383 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 45 transitions, 118 flow [2024-10-13 07:10:06,388 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 40 transitions, 104 flow [2024-10-13 07:10:06,401 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 07:10:06,410 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;@3ba2fe8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 07:10:06,411 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-13 07:10:06,429 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 07:10:06,429 INFO L124 PetriNetUnfolderBase]: 0/39 cut-off events. [2024-10-13 07:10:06,429 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-13 07:10:06,429 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 07:10:06,430 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:10:06,431 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 2 more)] === [2024-10-13 07:10:06,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:10:06,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1533638089, now seen corresponding path program 1 times [2024-10-13 07:10:06,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:10:06,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231171101] [2024-10-13 07:10:06,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:10:06,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:10:06,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:10:07,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 07:10:07,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:10:07,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231171101] [2024-10-13 07:10:07,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231171101] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:10:07,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:10:07,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 07:10:07,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131570332] [2024-10-13 07:10:07,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:10:07,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 07:10:07,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:10:07,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 07:10:07,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-13 07:10:07,481 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 45 [2024-10-13 07:10:07,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 40 transitions, 104 flow. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 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) [2024-10-13 07:10:07,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 07:10:07,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 45 [2024-10-13 07:10:07,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 07:10:09,163 INFO L124 PetriNetUnfolderBase]: 15778/21691 cut-off events. [2024-10-13 07:10:09,163 INFO L125 PetriNetUnfolderBase]: For 1470/1470 co-relation queries the response was YES. [2024-10-13 07:10:09,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44681 conditions, 21691 events. 15778/21691 cut-off events. For 1470/1470 co-relation queries the response was YES. Maximal size of possible extension queue 770. Compared 120969 event pairs, 10182 based on Foata normal form. 1/21656 useless extension candidates. Maximal degree in co-relation 40935. Up to 12528 conditions per place. [2024-10-13 07:10:09,276 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 72 selfloop transitions, 5 changer transitions 7/89 dead transitions. [2024-10-13 07:10:09,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 89 transitions, 397 flow [2024-10-13 07:10:09,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 07:10:09,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 07:10:09,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 121 transitions. [2024-10-13 07:10:09,288 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6722222222222223 [2024-10-13 07:10:09,290 INFO L175 Difference]: Start difference. First operand has 53 places, 40 transitions, 104 flow. Second operand 4 states and 121 transitions. [2024-10-13 07:10:09,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 89 transitions, 397 flow [2024-10-13 07:10:09,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 89 transitions, 363 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-10-13 07:10:09,328 INFO L231 Difference]: Finished difference. Result has 50 places, 43 transitions, 120 flow [2024-10-13 07:10:09,331 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=120, PETRI_PLACES=50, PETRI_TRANSITIONS=43} [2024-10-13 07:10:09,336 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, -3 predicate places. [2024-10-13 07:10:09,336 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 43 transitions, 120 flow [2024-10-13 07:10:09,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 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) [2024-10-13 07:10:09,337 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 07:10:09,337 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:10:09,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 07:10:09,337 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 2 more)] === [2024-10-13 07:10:09,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:10:09,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1934389341, now seen corresponding path program 2 times [2024-10-13 07:10:09,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:10:09,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819865488] [2024-10-13 07:10:09,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:10:09,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:10:09,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:10:09,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 07:10:09,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:10:09,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819865488] [2024-10-13 07:10:09,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819865488] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:10:09,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:10:09,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 07:10:09,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695391473] [2024-10-13 07:10:09,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:10:09,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 07:10:09,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:10:09,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 07:10:09,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 07:10:09,447 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-10-13 07:10:09,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 43 transitions, 120 flow. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-10-13 07:10:09,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 07:10:09,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-10-13 07:10:09,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 07:10:10,563 INFO L124 PetriNetUnfolderBase]: 12093/18342 cut-off events. [2024-10-13 07:10:10,564 INFO L125 PetriNetUnfolderBase]: For 360/360 co-relation queries the response was YES. [2024-10-13 07:10:10,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37412 conditions, 18342 events. 12093/18342 cut-off events. For 360/360 co-relation queries the response was YES. Maximal size of possible extension queue 932. Compared 124890 event pairs, 3771 based on Foata normal form. 196/18095 useless extension candidates. Maximal degree in co-relation 16203. Up to 5780 conditions per place. [2024-10-13 07:10:10,664 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 80 selfloop transitions, 17 changer transitions 0/110 dead transitions. [2024-10-13 07:10:10,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 110 transitions, 461 flow [2024-10-13 07:10:10,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 07:10:10,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 07:10:10,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 168 transitions. [2024-10-13 07:10:10,668 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7466666666666667 [2024-10-13 07:10:10,669 INFO L175 Difference]: Start difference. First operand has 50 places, 43 transitions, 120 flow. Second operand 5 states and 168 transitions. [2024-10-13 07:10:10,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 110 transitions, 461 flow [2024-10-13 07:10:10,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 110 transitions, 451 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-10-13 07:10:10,677 INFO L231 Difference]: Finished difference. Result has 53 places, 59 transitions, 214 flow [2024-10-13 07:10:10,678 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=214, PETRI_PLACES=53, PETRI_TRANSITIONS=59} [2024-10-13 07:10:10,679 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 0 predicate places. [2024-10-13 07:10:10,679 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 59 transitions, 214 flow [2024-10-13 07:10:10,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-10-13 07:10:10,679 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 07:10:10,679 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:10:10,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 07:10:10,680 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 2 more)] === [2024-10-13 07:10:10,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:10:10,681 INFO L85 PathProgramCache]: Analyzing trace with hash -816728865, now seen corresponding path program 3 times [2024-10-13 07:10:10,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:10:10,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461758813] [2024-10-13 07:10:10,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:10:10,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:10:10,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:10:10,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 07:10:10,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:10:10,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461758813] [2024-10-13 07:10:10,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461758813] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:10:10,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:10:10,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 07:10:10,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596530735] [2024-10-13 07:10:10,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:10:10,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 07:10:10,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:10:10,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 07:10:10,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 07:10:10,811 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-10-13 07:10:10,812 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 59 transitions, 214 flow. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-10-13 07:10:10,812 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 07:10:10,812 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-10-13 07:10:10,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 07:10:12,048 INFO L124 PetriNetUnfolderBase]: 12038/18592 cut-off events. [2024-10-13 07:10:12,048 INFO L125 PetriNetUnfolderBase]: For 8512/8623 co-relation queries the response was YES. [2024-10-13 07:10:12,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47121 conditions, 18592 events. 12038/18592 cut-off events. For 8512/8623 co-relation queries the response was YES. Maximal size of possible extension queue 936. Compared 130624 event pairs, 3299 based on Foata normal form. 230/18439 useless extension candidates. Maximal degree in co-relation 12290. Up to 5559 conditions per place. [2024-10-13 07:10:12,136 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 76 selfloop transitions, 22 changer transitions 0/111 dead transitions. [2024-10-13 07:10:12,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 111 transitions, 561 flow [2024-10-13 07:10:12,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 07:10:12,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 07:10:12,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 164 transitions. [2024-10-13 07:10:12,138 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7288888888888889 [2024-10-13 07:10:12,138 INFO L175 Difference]: Start difference. First operand has 53 places, 59 transitions, 214 flow. Second operand 5 states and 164 transitions. [2024-10-13 07:10:12,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 111 transitions, 561 flow [2024-10-13 07:10:12,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 111 transitions, 561 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 07:10:12,142 INFO L231 Difference]: Finished difference. Result has 59 places, 65 transitions, 311 flow [2024-10-13 07:10:12,143 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=311, PETRI_PLACES=59, PETRI_TRANSITIONS=65} [2024-10-13 07:10:12,143 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 6 predicate places. [2024-10-13 07:10:12,143 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 65 transitions, 311 flow [2024-10-13 07:10:12,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-10-13 07:10:12,144 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 07:10:12,144 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:10:12,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 07:10:12,144 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 2 more)] === [2024-10-13 07:10:12,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:10:12,145 INFO L85 PathProgramCache]: Analyzing trace with hash -47854339, now seen corresponding path program 4 times [2024-10-13 07:10:12,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:10:12,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186408070] [2024-10-13 07:10:12,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:10:12,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:10:12,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:10:12,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 07:10:12,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:10:12,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186408070] [2024-10-13 07:10:12,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186408070] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:10:12,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:10:12,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 07:10:12,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772768870] [2024-10-13 07:10:12,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:10:12,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 07:10:12,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:10:12,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 07:10:12,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-13 07:10:12,233 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-10-13 07:10:12,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 65 transitions, 311 flow. Second operand has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 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) [2024-10-13 07:10:12,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 07:10:12,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-10-13 07:10:12,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 07:10:13,667 INFO L124 PetriNetUnfolderBase]: 12179/19174 cut-off events. [2024-10-13 07:10:13,667 INFO L125 PetriNetUnfolderBase]: For 17252/17437 co-relation queries the response was YES. [2024-10-13 07:10:13,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53550 conditions, 19174 events. 12179/19174 cut-off events. For 17252/17437 co-relation queries the response was YES. Maximal size of possible extension queue 974. Compared 138194 event pairs, 2473 based on Foata normal form. 452/19196 useless extension candidates. Maximal degree in co-relation 14140. Up to 6821 conditions per place. [2024-10-13 07:10:13,813 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 93 selfloop transitions, 59 changer transitions 5/170 dead transitions. [2024-10-13 07:10:13,814 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 170 transitions, 1035 flow [2024-10-13 07:10:13,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 07:10:13,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 07:10:13,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 205 transitions. [2024-10-13 07:10:13,815 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7592592592592593 [2024-10-13 07:10:13,815 INFO L175 Difference]: Start difference. First operand has 59 places, 65 transitions, 311 flow. Second operand 6 states and 205 transitions. [2024-10-13 07:10:13,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 170 transitions, 1035 flow [2024-10-13 07:10:13,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 170 transitions, 994 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 07:10:13,828 INFO L231 Difference]: Finished difference. Result has 65 places, 102 transitions, 718 flow [2024-10-13 07:10:13,828 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=718, PETRI_PLACES=65, PETRI_TRANSITIONS=102} [2024-10-13 07:10:13,830 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 12 predicate places. [2024-10-13 07:10:13,831 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 102 transitions, 718 flow [2024-10-13 07:10:13,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 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) [2024-10-13 07:10:13,832 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 07:10:13,832 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:10:13,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 07:10:13,832 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 2 more)] === [2024-10-13 07:10:13,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:10:13,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1780414977, now seen corresponding path program 5 times [2024-10-13 07:10:13,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:10:13,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776623749] [2024-10-13 07:10:13,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:10:13,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:10:13,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:10:14,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 07:10:14,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:10:14,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776623749] [2024-10-13 07:10:14,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776623749] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:10:14,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:10:14,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 07:10:14,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082672818] [2024-10-13 07:10:14,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:10:14,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 07:10:14,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:10:14,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 07:10:14,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 07:10:14,024 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-10-13 07:10:14,024 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 102 transitions, 718 flow. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-10-13 07:10:14,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 07:10:14,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-10-13 07:10:14,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 07:10:15,116 INFO L124 PetriNetUnfolderBase]: 10687/17379 cut-off events. [2024-10-13 07:10:15,116 INFO L125 PetriNetUnfolderBase]: For 35283/35697 co-relation queries the response was YES. [2024-10-13 07:10:15,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55451 conditions, 17379 events. 10687/17379 cut-off events. For 35283/35697 co-relation queries the response was YES. Maximal size of possible extension queue 822. Compared 128151 event pairs, 2687 based on Foata normal form. 386/17521 useless extension candidates. Maximal degree in co-relation 12064. Up to 7287 conditions per place. [2024-10-13 07:10:15,230 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 93 selfloop transitions, 45 changer transitions 4/155 dead transitions. [2024-10-13 07:10:15,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 155 transitions, 1240 flow [2024-10-13 07:10:15,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 07:10:15,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 07:10:15,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 162 transitions. [2024-10-13 07:10:15,236 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.72 [2024-10-13 07:10:15,236 INFO L175 Difference]: Start difference. First operand has 65 places, 102 transitions, 718 flow. Second operand 5 states and 162 transitions. [2024-10-13 07:10:15,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 155 transitions, 1240 flow [2024-10-13 07:10:15,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 155 transitions, 1226 flow, removed 7 selfloop flow, removed 0 redundant places. [2024-10-13 07:10:15,258 INFO L231 Difference]: Finished difference. Result has 71 places, 111 transitions, 931 flow [2024-10-13 07:10:15,258 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=931, PETRI_PLACES=71, PETRI_TRANSITIONS=111} [2024-10-13 07:10:15,260 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 18 predicate places. [2024-10-13 07:10:15,260 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 111 transitions, 931 flow [2024-10-13 07:10:15,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 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) [2024-10-13 07:10:15,260 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 07:10:15,260 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:10:15,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 07:10:15,261 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 2 more)] === [2024-10-13 07:10:15,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:10:15,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1402267385, now seen corresponding path program 6 times [2024-10-13 07:10:15,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:10:15,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872135948] [2024-10-13 07:10:15,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:10:15,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:10:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:10:15,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 07:10:15,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:10:15,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872135948] [2024-10-13 07:10:15,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872135948] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:10:15,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:10:15,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 07:10:15,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691120957] [2024-10-13 07:10:15,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:10:15,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 07:10:15,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:10:15,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 07:10:15,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-13 07:10:15,374 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-10-13 07:10:15,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 111 transitions, 931 flow. Second operand has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 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) [2024-10-13 07:10:15,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 07:10:15,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-10-13 07:10:15,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 07:10:16,628 INFO L124 PetriNetUnfolderBase]: 9713/15462 cut-off events. [2024-10-13 07:10:16,628 INFO L125 PetriNetUnfolderBase]: For 41606/42339 co-relation queries the response was YES. [2024-10-13 07:10:16,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53692 conditions, 15462 events. 9713/15462 cut-off events. For 41606/42339 co-relation queries the response was YES. Maximal size of possible extension queue 754. Compared 109128 event pairs, 1954 based on Foata normal form. 419/15484 useless extension candidates. Maximal degree in co-relation 16319. Up to 5203 conditions per place. [2024-10-13 07:10:16,718 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 88 selfloop transitions, 70 changer transitions 2/173 dead transitions. [2024-10-13 07:10:16,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 173 transitions, 1492 flow [2024-10-13 07:10:16,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 07:10:16,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 07:10:16,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 199 transitions. [2024-10-13 07:10:16,719 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.737037037037037 [2024-10-13 07:10:16,719 INFO L175 Difference]: Start difference. First operand has 71 places, 111 transitions, 931 flow. Second operand 6 states and 199 transitions. [2024-10-13 07:10:16,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 173 transitions, 1492 flow [2024-10-13 07:10:16,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 173 transitions, 1435 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-10-13 07:10:16,739 INFO L231 Difference]: Finished difference. Result has 75 places, 114 transitions, 1086 flow [2024-10-13 07:10:16,740 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=874, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1086, PETRI_PLACES=75, PETRI_TRANSITIONS=114} [2024-10-13 07:10:16,740 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 22 predicate places. [2024-10-13 07:10:16,740 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 114 transitions, 1086 flow [2024-10-13 07:10:16,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 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) [2024-10-13 07:10:16,741 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 07:10:16,741 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:10:16,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 07:10:16,741 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 2 more)] === [2024-10-13 07:10:16,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:10:16,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1730224413, now seen corresponding path program 7 times [2024-10-13 07:10:16,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:10:16,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014977801] [2024-10-13 07:10:16,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:10:16,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:10:16,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:10:16,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 07:10:16,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:10:16,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014977801] [2024-10-13 07:10:16,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014977801] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:10:16,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:10:16,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 07:10:16,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835723440] [2024-10-13 07:10:16,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:10:16,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 07:10:16,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:10:16,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 07:10:16,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-13 07:10:16,841 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-10-13 07:10:16,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 114 transitions, 1086 flow. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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) [2024-10-13 07:10:16,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 07:10:16,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-10-13 07:10:16,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 07:10:18,014 INFO L124 PetriNetUnfolderBase]: 9912/15936 cut-off events. [2024-10-13 07:10:18,015 INFO L125 PetriNetUnfolderBase]: For 55579/56398 co-relation queries the response was YES. [2024-10-13 07:10:18,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58380 conditions, 15936 events. 9912/15936 cut-off events. For 55579/56398 co-relation queries the response was YES. Maximal size of possible extension queue 785. Compared 114994 event pairs, 2069 based on Foata normal form. 443/15968 useless extension candidates. Maximal degree in co-relation 18218. Up to 5203 conditions per place. [2024-10-13 07:10:18,113 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 106 selfloop transitions, 89 changer transitions 1/209 dead transitions. [2024-10-13 07:10:18,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 209 transitions, 2005 flow [2024-10-13 07:10:18,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 07:10:18,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 07:10:18,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 255 transitions. [2024-10-13 07:10:18,115 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2024-10-13 07:10:18,115 INFO L175 Difference]: Start difference. First operand has 75 places, 114 transitions, 1086 flow. Second operand 8 states and 255 transitions. [2024-10-13 07:10:18,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 209 transitions, 2005 flow [2024-10-13 07:10:18,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 209 transitions, 1820 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-10-13 07:10:18,146 INFO L231 Difference]: Finished difference. Result has 79 places, 133 transitions, 1401 flow [2024-10-13 07:10:18,146 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=945, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1401, PETRI_PLACES=79, PETRI_TRANSITIONS=133} [2024-10-13 07:10:18,147 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 26 predicate places. [2024-10-13 07:10:18,147 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 133 transitions, 1401 flow [2024-10-13 07:10:18,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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) [2024-10-13 07:10:18,147 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 07:10:18,148 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:10:18,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 07:10:18,148 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 2 more)] === [2024-10-13 07:10:18,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:10:18,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1373929515, now seen corresponding path program 8 times [2024-10-13 07:10:18,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:10:18,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822697569] [2024-10-13 07:10:18,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:10:18,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:10:18,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:10:18,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 07:10:18,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:10:18,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822697569] [2024-10-13 07:10:18,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822697569] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:10:18,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:10:18,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 07:10:18,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352761] [2024-10-13 07:10:18,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:10:18,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 07:10:18,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:10:18,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 07:10:18,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-13 07:10:18,261 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-10-13 07:10:18,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 133 transitions, 1401 flow. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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) [2024-10-13 07:10:18,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 07:10:18,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-10-13 07:10:18,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 07:10:19,832 INFO L124 PetriNetUnfolderBase]: 8903/14488 cut-off events. [2024-10-13 07:10:19,832 INFO L125 PetriNetUnfolderBase]: For 48889/49507 co-relation queries the response was YES. [2024-10-13 07:10:19,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53435 conditions, 14488 events. 8903/14488 cut-off events. For 48889/49507 co-relation queries the response was YES. Maximal size of possible extension queue 690. Compared 103980 event pairs, 1841 based on Foata normal form. 482/14641 useless extension candidates. Maximal degree in co-relation 15824. Up to 4669 conditions per place. [2024-10-13 07:10:19,935 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 102 selfloop transitions, 96 changer transitions 15/226 dead transitions. [2024-10-13 07:10:19,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 226 transitions, 2299 flow [2024-10-13 07:10:19,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 07:10:19,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 07:10:19,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 259 transitions. [2024-10-13 07:10:19,937 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7194444444444444 [2024-10-13 07:10:19,937 INFO L175 Difference]: Start difference. First operand has 79 places, 133 transitions, 1401 flow. Second operand 8 states and 259 transitions. [2024-10-13 07:10:19,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 226 transitions, 2299 flow [2024-10-13 07:10:19,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 226 transitions, 2169 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 07:10:19,981 INFO L231 Difference]: Finished difference. Result has 85 places, 140 transitions, 1595 flow [2024-10-13 07:10:19,981 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=1235, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1595, PETRI_PLACES=85, PETRI_TRANSITIONS=140} [2024-10-13 07:10:19,982 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 32 predicate places. [2024-10-13 07:10:19,982 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 140 transitions, 1595 flow [2024-10-13 07:10:19,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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) [2024-10-13 07:10:19,983 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 07:10:19,983 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:10:19,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-13 07:10:19,983 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 07:10:19,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:10:19,984 INFO L85 PathProgramCache]: Analyzing trace with hash 2054732647, now seen corresponding path program 9 times [2024-10-13 07:10:19,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:10:19,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739944384] [2024-10-13 07:10:19,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:10:19,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:10:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:10:20,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 07:10:20,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:10:20,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739944384] [2024-10-13 07:10:20,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739944384] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:10:20,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:10:20,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 07:10:20,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490959725] [2024-10-13 07:10:20,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:10:20,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 07:10:20,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:10:20,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 07:10:20,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-13 07:10:20,094 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-10-13 07:10:20,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 140 transitions, 1595 flow. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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) [2024-10-13 07:10:20,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 07:10:20,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-10-13 07:10:20,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 07:10:21,125 INFO L124 PetriNetUnfolderBase]: 7433/12352 cut-off events. [2024-10-13 07:10:21,126 INFO L125 PetriNetUnfolderBase]: For 47105/47503 co-relation queries the response was YES. [2024-10-13 07:10:21,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47336 conditions, 12352 events. 7433/12352 cut-off events. For 47105/47503 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 88078 event pairs, 1590 based on Foata normal form. 335/12499 useless extension candidates. Maximal degree in co-relation 14192. Up to 3795 conditions per place. [2024-10-13 07:10:21,209 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 102 selfloop transitions, 106 changer transitions 22/243 dead transitions. [2024-10-13 07:10:21,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 243 transitions, 2756 flow [2024-10-13 07:10:21,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 07:10:21,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 07:10:21,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 256 transitions. [2024-10-13 07:10:21,210 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7111111111111111 [2024-10-13 07:10:21,210 INFO L175 Difference]: Start difference. First operand has 85 places, 140 transitions, 1595 flow. Second operand 8 states and 256 transitions. [2024-10-13 07:10:21,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 243 transitions, 2756 flow [2024-10-13 07:10:21,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 243 transitions, 2715 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 07:10:21,256 INFO L231 Difference]: Finished difference. Result has 92 places, 149 transitions, 1949 flow [2024-10-13 07:10:21,256 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=1557, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1949, PETRI_PLACES=92, PETRI_TRANSITIONS=149} [2024-10-13 07:10:21,257 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 39 predicate places. [2024-10-13 07:10:21,257 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 149 transitions, 1949 flow [2024-10-13 07:10:21,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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) [2024-10-13 07:10:21,257 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 07:10:21,257 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:10:21,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-13 07:10:21,257 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 07:10:21,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:10:21,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1378666039, now seen corresponding path program 10 times [2024-10-13 07:10:21,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:10:21,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145264940] [2024-10-13 07:10:21,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:10:21,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:10:21,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:10:21,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 07:10:21,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:10:21,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145264940] [2024-10-13 07:10:21,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145264940] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:10:21,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:10:21,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 07:10:21,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349259259] [2024-10-13 07:10:21,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:10:21,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 07:10:21,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:10:21,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 07:10:21,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-13 07:10:21,340 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-10-13 07:10:21,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 149 transitions, 1949 flow. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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) [2024-10-13 07:10:21,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 07:10:21,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-10-13 07:10:21,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 07:10:22,184 INFO L124 PetriNetUnfolderBase]: 6761/11208 cut-off events. [2024-10-13 07:10:22,184 INFO L125 PetriNetUnfolderBase]: For 50806/51136 co-relation queries the response was YES. [2024-10-13 07:10:22,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44290 conditions, 11208 events. 6761/11208 cut-off events. For 50806/51136 co-relation queries the response was YES. Maximal size of possible extension queue 491. Compared 78331 event pairs, 1521 based on Foata normal form. 174/11202 useless extension candidates. Maximal degree in co-relation 15457. Up to 3855 conditions per place. [2024-10-13 07:10:22,255 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 84 selfloop transitions, 138 changer transitions 13/248 dead transitions. [2024-10-13 07:10:22,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 248 transitions, 3086 flow [2024-10-13 07:10:22,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 07:10:22,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 07:10:22,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 241 transitions. [2024-10-13 07:10:22,257 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6694444444444444 [2024-10-13 07:10:22,257 INFO L175 Difference]: Start difference. First operand has 92 places, 149 transitions, 1949 flow. Second operand 8 states and 241 transitions. [2024-10-13 07:10:22,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 248 transitions, 3086 flow [2024-10-13 07:10:22,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 248 transitions, 3031 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 07:10:22,371 INFO L231 Difference]: Finished difference. Result has 98 places, 175 transitions, 2529 flow [2024-10-13 07:10:22,372 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=1909, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2529, PETRI_PLACES=98, PETRI_TRANSITIONS=175} [2024-10-13 07:10:22,372 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 45 predicate places. [2024-10-13 07:10:22,373 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 175 transitions, 2529 flow [2024-10-13 07:10:22,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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) [2024-10-13 07:10:22,373 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 07:10:22,373 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:10:22,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-13 07:10:22,373 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 07:10:22,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:10:22,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1266094021, now seen corresponding path program 11 times [2024-10-13 07:10:22,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:10:22,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176530031] [2024-10-13 07:10:22,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:10:22,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:10:22,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:10:22,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 07:10:22,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:10:22,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176530031] [2024-10-13 07:10:22,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176530031] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:10:22,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:10:22,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 07:10:22,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526298193] [2024-10-13 07:10:22,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:10:22,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 07:10:22,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:10:22,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 07:10:22,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-13 07:10:22,572 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-10-13 07:10:22,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 175 transitions, 2529 flow. Second operand has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 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) [2024-10-13 07:10:22,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 07:10:22,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-10-13 07:10:22,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 07:10:23,542 INFO L124 PetriNetUnfolderBase]: 6460/10759 cut-off events. [2024-10-13 07:10:23,542 INFO L125 PetriNetUnfolderBase]: For 63871/64351 co-relation queries the response was YES. [2024-10-13 07:10:23,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44405 conditions, 10759 events. 6460/10759 cut-off events. For 63871/64351 co-relation queries the response was YES. Maximal size of possible extension queue 470. Compared 75486 event pairs, 1458 based on Foata normal form. 314/10913 useless extension candidates. Maximal degree in co-relation 15689. Up to 3655 conditions per place. [2024-10-13 07:10:23,616 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 105 selfloop transitions, 144 changer transitions 18/280 dead transitions. [2024-10-13 07:10:23,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 280 transitions, 3678 flow [2024-10-13 07:10:23,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 07:10:23,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-13 07:10:23,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 333 transitions. [2024-10-13 07:10:23,621 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6166666666666667 [2024-10-13 07:10:23,621 INFO L175 Difference]: Start difference. First operand has 98 places, 175 transitions, 2529 flow. Second operand 12 states and 333 transitions. [2024-10-13 07:10:23,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 280 transitions, 3678 flow [2024-10-13 07:10:23,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 280 transitions, 3443 flow, removed 30 selfloop flow, removed 5 redundant places. [2024-10-13 07:10:23,702 INFO L231 Difference]: Finished difference. Result has 106 places, 181 transitions, 2700 flow [2024-10-13 07:10:23,703 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=2328, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=132, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2700, PETRI_PLACES=106, PETRI_TRANSITIONS=181} [2024-10-13 07:10:23,703 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 53 predicate places. [2024-10-13 07:10:23,703 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 181 transitions, 2700 flow [2024-10-13 07:10:23,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 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) [2024-10-13 07:10:23,704 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 07:10:23,704 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:10:23,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-13 07:10:23,704 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 07:10:23,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:10:23,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1130646983, now seen corresponding path program 12 times [2024-10-13 07:10:23,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:10:23,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546985980] [2024-10-13 07:10:23,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:10:23,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:10:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:10:23,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 07:10:23,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:10:23,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546985980] [2024-10-13 07:10:23,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546985980] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:10:23,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:10:23,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 07:10:23,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332436397] [2024-10-13 07:10:23,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:10:23,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 07:10:23,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:10:23,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 07:10:23,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-13 07:10:23,792 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-10-13 07:10:23,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 181 transitions, 2700 flow. Second operand has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 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) [2024-10-13 07:10:23,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 07:10:23,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-10-13 07:10:23,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 07:10:25,113 INFO L124 PetriNetUnfolderBase]: 6554/10931 cut-off events. [2024-10-13 07:10:25,113 INFO L125 PetriNetUnfolderBase]: For 73942/74346 co-relation queries the response was YES. [2024-10-13 07:10:25,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46566 conditions, 10931 events. 6554/10931 cut-off events. For 73942/74346 co-relation queries the response was YES. Maximal size of possible extension queue 506. Compared 76992 event pairs, 1578 based on Foata normal form. 292/11049 useless extension candidates. Maximal degree in co-relation 16632. Up to 3714 conditions per place. [2024-10-13 07:10:25,206 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 89 selfloop transitions, 120 changer transitions 68/290 dead transitions. [2024-10-13 07:10:25,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 290 transitions, 3915 flow [2024-10-13 07:10:25,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 07:10:25,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-13 07:10:25,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 339 transitions. [2024-10-13 07:10:25,208 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6277777777777778 [2024-10-13 07:10:25,208 INFO L175 Difference]: Start difference. First operand has 106 places, 181 transitions, 2700 flow. Second operand 12 states and 339 transitions. [2024-10-13 07:10:25,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 290 transitions, 3915 flow [2024-10-13 07:10:25,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 290 transitions, 3787 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-10-13 07:10:25,330 INFO L231 Difference]: Finished difference. Result has 116 places, 157 transitions, 2366 flow [2024-10-13 07:10:25,331 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=2586, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=120, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2366, PETRI_PLACES=116, PETRI_TRANSITIONS=157} [2024-10-13 07:10:25,331 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 63 predicate places. [2024-10-13 07:10:25,331 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 157 transitions, 2366 flow [2024-10-13 07:10:25,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 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) [2024-10-13 07:10:25,332 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 07:10:25,332 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:10:25,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-13 07:10:25,332 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 07:10:25,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:10:25,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1714267051, now seen corresponding path program 13 times [2024-10-13 07:10:25,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:10:25,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243798663] [2024-10-13 07:10:25,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:10:25,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:10:25,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:10:25,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 07:10:25,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:10:25,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243798663] [2024-10-13 07:10:25,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243798663] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:10:25,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:10:25,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 07:10:25,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068654652] [2024-10-13 07:10:25,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:10:25,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 07:10:25,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:10:25,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 07:10:25,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-13 07:10:25,510 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-10-13 07:10:25,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 157 transitions, 2366 flow. Second operand has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 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) [2024-10-13 07:10:25,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 07:10:25,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-10-13 07:10:25,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 07:10:26,745 INFO L124 PetriNetUnfolderBase]: 5863/9830 cut-off events. [2024-10-13 07:10:26,746 INFO L125 PetriNetUnfolderBase]: For 76795/77237 co-relation queries the response was YES. [2024-10-13 07:10:26,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43148 conditions, 9830 events. 5863/9830 cut-off events. For 76795/77237 co-relation queries the response was YES. Maximal size of possible extension queue 456. Compared 68379 event pairs, 1450 based on Foata normal form. 310/10004 useless extension candidates. Maximal degree in co-relation 16735. Up to 3472 conditions per place. [2024-10-13 07:10:26,827 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 97 selfloop transitions, 120 changer transitions 31/261 dead transitions. [2024-10-13 07:10:26,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 261 transitions, 3493 flow [2024-10-13 07:10:26,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-13 07:10:26,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-13 07:10:26,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 334 transitions. [2024-10-13 07:10:26,830 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6185185185185185 [2024-10-13 07:10:26,830 INFO L175 Difference]: Start difference. First operand has 116 places, 157 transitions, 2366 flow. Second operand 12 states and 334 transitions. [2024-10-13 07:10:26,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 261 transitions, 3493 flow [2024-10-13 07:10:26,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 261 transitions, 3181 flow, removed 18 selfloop flow, removed 9 redundant places. [2024-10-13 07:10:26,954 INFO L231 Difference]: Finished difference. Result has 117 places, 156 transitions, 2316 flow [2024-10-13 07:10:26,954 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=2094, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2316, PETRI_PLACES=117, PETRI_TRANSITIONS=156} [2024-10-13 07:10:26,955 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 64 predicate places. [2024-10-13 07:10:26,955 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 156 transitions, 2316 flow [2024-10-13 07:10:26,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 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) [2024-10-13 07:10:26,956 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 07:10:26,956 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:10:26,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-13 07:10:26,956 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 07:10:26,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:10:26,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1823855449, now seen corresponding path program 14 times [2024-10-13 07:10:26,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:10:26,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58040449] [2024-10-13 07:10:26,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:10:26,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:10:26,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:10:27,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 07:10:27,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:10:27,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58040449] [2024-10-13 07:10:27,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58040449] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:10:27,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:10:27,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-13 07:10:27,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957125688] [2024-10-13 07:10:27,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:10:27,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 07:10:27,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:10:27,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 07:10:27,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-13 07:10:27,143 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-10-13 07:10:27,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 156 transitions, 2316 flow. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 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) [2024-10-13 07:10:27,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 07:10:27,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-10-13 07:10:27,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 07:10:27,904 INFO L124 PetriNetUnfolderBase]: 4241/7148 cut-off events. [2024-10-13 07:10:27,904 INFO L125 PetriNetUnfolderBase]: For 51150/51582 co-relation queries the response was YES. [2024-10-13 07:10:27,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30142 conditions, 7148 events. 4241/7148 cut-off events. For 51150/51582 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 47076 event pairs, 1253 based on Foata normal form. 272/7392 useless extension candidates. Maximal degree in co-relation 9954. Up to 2766 conditions per place. [2024-10-13 07:10:27,950 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 79 selfloop transitions, 106 changer transitions 11/207 dead transitions. [2024-10-13 07:10:27,950 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 207 transitions, 2853 flow [2024-10-13 07:10:27,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 07:10:27,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-13 07:10:27,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 245 transitions. [2024-10-13 07:10:27,952 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6049382716049383 [2024-10-13 07:10:27,952 INFO L175 Difference]: Start difference. First operand has 117 places, 156 transitions, 2316 flow. Second operand 9 states and 245 transitions. [2024-10-13 07:10:27,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 207 transitions, 2853 flow [2024-10-13 07:10:28,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 207 transitions, 2777 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-10-13 07:10:28,007 INFO L231 Difference]: Finished difference. Result has 124 places, 140 transitions, 2147 flow [2024-10-13 07:10:28,007 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=2070, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2147, PETRI_PLACES=124, PETRI_TRANSITIONS=140} [2024-10-13 07:10:28,008 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 71 predicate places. [2024-10-13 07:10:28,008 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 140 transitions, 2147 flow [2024-10-13 07:10:28,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 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) [2024-10-13 07:10:28,008 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 07:10:28,008 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:10:28,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-13 07:10:28,008 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 07:10:28,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:10:28,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1162744663, now seen corresponding path program 15 times [2024-10-13 07:10:28,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:10:28,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838855699] [2024-10-13 07:10:28,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:10:28,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:10:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:10:28,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 07:10:28,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:10:28,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838855699] [2024-10-13 07:10:28,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838855699] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:10:28,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:10:28,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-13 07:10:28,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648794958] [2024-10-13 07:10:28,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:10:28,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-13 07:10:28,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:10:28,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-13 07:10:28,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-13 07:10:28,116 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-10-13 07:10:28,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 140 transitions, 2147 flow. Second operand has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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) [2024-10-13 07:10:28,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 07:10:28,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-10-13 07:10:28,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 07:10:28,422 INFO L124 PetriNetUnfolderBase]: 1234/2244 cut-off events. [2024-10-13 07:10:28,423 INFO L125 PetriNetUnfolderBase]: For 15955/15987 co-relation queries the response was YES. [2024-10-13 07:10:28,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10152 conditions, 2244 events. 1234/2244 cut-off events. For 15955/15987 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 12144 event pairs, 270 based on Foata normal form. 184/2428 useless extension candidates. Maximal degree in co-relation 6713. Up to 483 conditions per place. [2024-10-13 07:10:28,434 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 54 selfloop transitions, 24 changer transitions 42/131 dead transitions. [2024-10-13 07:10:28,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 131 transitions, 1627 flow [2024-10-13 07:10:28,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 07:10:28,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 07:10:28,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 213 transitions. [2024-10-13 07:10:28,437 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5916666666666667 [2024-10-13 07:10:28,437 INFO L175 Difference]: Start difference. First operand has 124 places, 140 transitions, 2147 flow. Second operand 8 states and 213 transitions. [2024-10-13 07:10:28,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 131 transitions, 1627 flow [2024-10-13 07:10:28,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 131 transitions, 1408 flow, removed 29 selfloop flow, removed 18 redundant places. [2024-10-13 07:10:28,451 INFO L231 Difference]: Finished difference. Result has 113 places, 60 transitions, 586 flow [2024-10-13 07:10:28,451 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=996, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=586, PETRI_PLACES=113, PETRI_TRANSITIONS=60} [2024-10-13 07:10:28,451 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 60 predicate places. [2024-10-13 07:10:28,451 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 60 transitions, 586 flow [2024-10-13 07:10:28,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.285714285714285) internal successors, (128), 7 states have internal predecessors, (128), 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) [2024-10-13 07:10:28,452 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 07:10:28,452 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:10:28,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-13 07:10:28,452 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 07:10:28,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:10:28,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1185250237, now seen corresponding path program 16 times [2024-10-13 07:10:28,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:10:28,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785655400] [2024-10-13 07:10:28,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:10:28,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:10:28,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:10:28,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 07:10:28,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:10:28,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785655400] [2024-10-13 07:10:28,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785655400] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:10:28,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:10:28,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-13 07:10:28,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644083041] [2024-10-13 07:10:28,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:10:28,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-13 07:10:28,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:10:28,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-13 07:10:28,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-13 07:10:28,533 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-10-13 07:10:28,533 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 60 transitions, 586 flow. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 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) [2024-10-13 07:10:28,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 07:10:28,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-10-13 07:10:28,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 07:10:28,696 INFO L124 PetriNetUnfolderBase]: 433/805 cut-off events. [2024-10-13 07:10:28,696 INFO L125 PetriNetUnfolderBase]: For 3724/3736 co-relation queries the response was YES. [2024-10-13 07:10:28,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2994 conditions, 805 events. 433/805 cut-off events. For 3724/3736 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3306 event pairs, 68 based on Foata normal form. 40/845 useless extension candidates. Maximal degree in co-relation 1966. Up to 193 conditions per place. [2024-10-13 07:10:28,700 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 46 selfloop transitions, 16 changer transitions 14/87 dead transitions. [2024-10-13 07:10:28,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 87 transitions, 788 flow [2024-10-13 07:10:28,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 07:10:28,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 07:10:28,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 186 transitions. [2024-10-13 07:10:28,701 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5166666666666667 [2024-10-13 07:10:28,702 INFO L175 Difference]: Start difference. First operand has 113 places, 60 transitions, 586 flow. Second operand 8 states and 186 transitions. [2024-10-13 07:10:28,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 87 transitions, 788 flow [2024-10-13 07:10:28,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 87 transitions, 563 flow, removed 20 selfloop flow, removed 28 redundant places. [2024-10-13 07:10:28,705 INFO L231 Difference]: Finished difference. Result has 83 places, 48 transitions, 270 flow [2024-10-13 07:10:28,706 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=270, PETRI_PLACES=83, PETRI_TRANSITIONS=48} [2024-10-13 07:10:28,706 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 30 predicate places. [2024-10-13 07:10:28,706 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 48 transitions, 270 flow [2024-10-13 07:10:28,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 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) [2024-10-13 07:10:28,706 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 07:10:28,706 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:10:28,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-13 07:10:28,707 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 07:10:28,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:10:28,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1905865297, now seen corresponding path program 17 times [2024-10-13 07:10:28,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:10:28,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141421427] [2024-10-13 07:10:28,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:10:28,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:10:28,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:10:28,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 07:10:28,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:10:28,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141421427] [2024-10-13 07:10:28,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141421427] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:10:28,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:10:28,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-13 07:10:28,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666296839] [2024-10-13 07:10:28,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:10:28,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-13 07:10:28,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:10:28,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-13 07:10:28,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-13 07:10:28,810 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-10-13 07:10:28,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 48 transitions, 270 flow. Second operand has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 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) [2024-10-13 07:10:28,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 07:10:28,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-10-13 07:10:28,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 07:10:28,912 INFO L124 PetriNetUnfolderBase]: 68/169 cut-off events. [2024-10-13 07:10:28,913 INFO L125 PetriNetUnfolderBase]: For 488/488 co-relation queries the response was YES. [2024-10-13 07:10:28,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 581 conditions, 169 events. 68/169 cut-off events. For 488/488 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 491 event pairs, 8 based on Foata normal form. 16/185 useless extension candidates. Maximal degree in co-relation 566. Up to 40 conditions per place. [2024-10-13 07:10:28,913 INFO L140 encePairwiseOnDemand]: 37/45 looper letters, 0 selfloop transitions, 0 changer transitions 50/50 dead transitions. [2024-10-13 07:10:28,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 50 transitions, 333 flow [2024-10-13 07:10:28,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-13 07:10:28,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-13 07:10:28,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 169 transitions. [2024-10-13 07:10:28,914 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41728395061728396 [2024-10-13 07:10:28,915 INFO L175 Difference]: Start difference. First operand has 83 places, 48 transitions, 270 flow. Second operand 9 states and 169 transitions. [2024-10-13 07:10:28,915 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 50 transitions, 333 flow [2024-10-13 07:10:28,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 50 transitions, 253 flow, removed 1 selfloop flow, removed 22 redundant places. [2024-10-13 07:10:28,916 INFO L231 Difference]: Finished difference. Result has 55 places, 0 transitions, 0 flow [2024-10-13 07:10:28,916 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=55, PETRI_TRANSITIONS=0} [2024-10-13 07:10:28,917 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 2 predicate places. [2024-10-13 07:10:28,917 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 0 transitions, 0 flow [2024-10-13 07:10:28,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.333333333333332) internal successors, (156), 9 states have internal predecessors, (156), 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) [2024-10-13 07:10:28,919 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2024-10-13 07:10:28,920 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2024-10-13 07:10:28,920 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-10-13 07:10:28,920 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-10-13 07:10:28,920 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-10-13 07:10:28,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-13 07:10:28,921 INFO L407 BasicCegarLoop]: Path program histogram: [17] [2024-10-13 07:10:28,923 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-13 07:10:28,923 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 07:10:28,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:10:28 BasicIcfg [2024-10-13 07:10:28,927 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 07:10:28,928 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 07:10:28,928 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 07:10:28,928 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 07:10:28,928 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:10:06" (3/4) ... [2024-10-13 07:10:28,930 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 07:10:28,932 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-13 07:10:28,932 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-13 07:10:28,933 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-10-13 07:10:28,933 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2024-10-13 07:10:28,936 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 85 nodes and edges [2024-10-13 07:10:28,937 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-10-13 07:10:28,937 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-10-13 07:10:28,937 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-13 07:10:29,006 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 07:10:29,006 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 07:10:29,006 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 07:10:29,007 INFO L158 Benchmark]: Toolchain (without parser) took 23641.08ms. Allocated memory was 172.0MB in the beginning and 8.6GB in the end (delta: 8.5GB). Free memory was 102.0MB in the beginning and 5.5GB in the end (delta: -5.4GB). Peak memory consumption was 3.0GB. Max. memory is 16.1GB. [2024-10-13 07:10:29,007 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 172.0MB. Free memory is still 128.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 07:10:29,007 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.15ms. Allocated memory is still 172.0MB. Free memory was 101.8MB in the beginning and 88.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-13 07:10:29,007 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.83ms. Allocated memory is still 172.0MB. Free memory was 88.6MB in the beginning and 141.3MB in the end (delta: -52.7MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2024-10-13 07:10:29,008 INFO L158 Benchmark]: Boogie Preprocessor took 35.80ms. Allocated memory is still 172.0MB. Free memory was 141.3MB in the beginning and 139.2MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 07:10:29,008 INFO L158 Benchmark]: RCFGBuilder took 521.98ms. Allocated memory is still 172.0MB. Free memory was 139.2MB in the beginning and 93.9MB in the end (delta: 45.3MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2024-10-13 07:10:29,008 INFO L158 Benchmark]: TraceAbstraction took 22658.84ms. Allocated memory was 172.0MB in the beginning and 8.6GB in the end (delta: 8.5GB). Free memory was 93.9MB in the beginning and 5.5GB in the end (delta: -5.5GB). Peak memory consumption was 3.0GB. Max. memory is 16.1GB. [2024-10-13 07:10:29,008 INFO L158 Benchmark]: Witness Printer took 78.61ms. Allocated memory is still 8.6GB. Free memory was 5.5GB in the beginning and 5.5GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 07:10:29,009 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 172.0MB. Free memory is still 128.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 248.15ms. Allocated memory is still 172.0MB. Free memory was 101.8MB in the beginning and 88.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.83ms. Allocated memory is still 172.0MB. Free memory was 88.6MB in the beginning and 141.3MB in the end (delta: -52.7MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.80ms. Allocated memory is still 172.0MB. Free memory was 141.3MB in the beginning and 139.2MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 521.98ms. Allocated memory is still 172.0MB. Free memory was 139.2MB in the beginning and 93.9MB in the end (delta: 45.3MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * TraceAbstraction took 22658.84ms. Allocated memory was 172.0MB in the beginning and 8.6GB in the end (delta: 8.5GB). Free memory was 93.9MB in the beginning and 5.5GB in the end (delta: -5.5GB). Peak memory consumption was 3.0GB. Max. memory is 16.1GB. * Witness Printer took 78.61ms. Allocated memory is still 8.6GB. Free memory was 5.5GB in the beginning and 5.5GB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 146]: 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 9 procedures, 79 locations, 5 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: 22.6s, OverallIterations: 17, TraceHistogramMax: 1, PathProgramHistogramMax: 17, EmptinessCheckTime: 0.0s, AutomataDifference: 19.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1135 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1134 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 310 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4754 IncrementalHoareTripleChecker+Invalid, 5064 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 310 mSolverCounterUnsat, 2 mSDtfsCounter, 4754 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 172 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2700occurred in iteration=11, InterpolantAutomatonStates: 133, 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, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 680 NumberOfCodeBlocks, 680 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 663 ConstructedInterpolants, 0 QuantifiedInterpolants, 2125 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 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! [2024-10-13 07:10:29,035 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