./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-barrier.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-barrier.wvr.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 504de2e820c504d0b98f5b71c19407f1b43c0dd9338639fad4f2fe6ea2f6854f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 14:28:52,573 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 14:28:52,665 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 14:28:52,670 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 14:28:52,672 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 14:28:52,703 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 14:28:52,704 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 14:28:52,704 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 14:28:52,705 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 14:28:52,706 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 14:28:52,706 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 14:28:52,707 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 14:28:52,707 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 14:28:52,707 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 14:28:52,709 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 14:28:52,710 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 14:28:52,710 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 14:28:52,710 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 14:28:52,710 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 14:28:52,711 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 14:28:52,711 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 14:28:52,713 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 14:28:52,713 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 14:28:52,713 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 14:28:52,714 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 14:28:52,714 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 14:28:52,714 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 14:28:52,715 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 14:28:52,717 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 14:28:52,717 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 14:28:52,717 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 14:28:52,717 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 14:28:52,717 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 14:28:52,718 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 14:28:52,718 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 14:28:52,719 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 14:28:52,719 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 14:28:52,720 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 14:28:52,720 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 14:28:52,720 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 14:28:52,721 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 14:28:52,721 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 14:28:52,721 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 504de2e820c504d0b98f5b71c19407f1b43c0dd9338639fad4f2fe6ea2f6854f [2024-10-11 14:28:52,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 14:28:52,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 14:28:52,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 14:28:52,978 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 14:28:52,978 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 14:28:52,979 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2024-10-11 14:28:54,380 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 14:28:54,583 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 14:28:54,583 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-barrier.wvr.c [2024-10-11 14:28:54,595 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/c00b74208/d3fea8760f21405f812ddb000220ea02/FLAGc785f75ec [2024-10-11 14:28:54,946 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/c00b74208/d3fea8760f21405f812ddb000220ea02 [2024-10-11 14:28:54,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 14:28:54,950 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 14:28:54,951 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 14:28:54,951 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 14:28:54,962 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 14:28:54,962 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:28:54" (1/1) ... [2024-10-11 14:28:54,963 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25307e8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:54, skipping insertion in model container [2024-10-11 14:28:54,963 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:28:54" (1/1) ... [2024-10-11 14:28:54,996 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 14:28:55,221 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-barrier.wvr.c[4800,4813] [2024-10-11 14:28:55,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 14:28:55,241 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 14:28:55,273 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-barrier.wvr.c[4800,4813] [2024-10-11 14:28:55,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 14:28:55,294 INFO L204 MainTranslator]: Completed translation [2024-10-11 14:28:55,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:55 WrapperNode [2024-10-11 14:28:55,295 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 14:28:55,297 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 14:28:55,298 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 14:28:55,298 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 14:28:55,304 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:55" (1/1) ... [2024-10-11 14:28:55,315 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:55" (1/1) ... [2024-10-11 14:28:55,346 INFO L138 Inliner]: procedures = 24, calls = 68, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 238 [2024-10-11 14:28:55,347 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 14:28:55,348 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 14:28:55,352 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 14:28:55,352 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 14:28:55,366 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:55" (1/1) ... [2024-10-11 14:28:55,367 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:55" (1/1) ... [2024-10-11 14:28:55,371 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:55" (1/1) ... [2024-10-11 14:28:55,388 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]. [2024-10-11 14:28:55,389 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:55" (1/1) ... [2024-10-11 14:28:55,389 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:55" (1/1) ... [2024-10-11 14:28:55,395 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:55" (1/1) ... [2024-10-11 14:28:55,397 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:55" (1/1) ... [2024-10-11 14:28:55,398 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:55" (1/1) ... [2024-10-11 14:28:55,399 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:55" (1/1) ... [2024-10-11 14:28:55,402 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 14:28:55,403 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 14:28:55,403 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 14:28:55,403 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 14:28:55,404 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:55" (1/1) ... [2024-10-11 14:28:55,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 14:28:55,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:28:55,439 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 14:28:55,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 14:28:55,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 14:28:55,480 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-11 14:28:55,480 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-11 14:28:55,481 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-11 14:28:55,481 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-11 14:28:55,481 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-11 14:28:55,481 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-11 14:28:55,481 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-10-11 14:28:55,483 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-10-11 14:28:55,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 14:28:55,483 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-10-11 14:28:55,483 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-10-11 14:28:55,483 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-10-11 14:28:55,483 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-10-11 14:28:55,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 14:28:55,484 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 14:28:55,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 14:28:55,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 14:28:55,485 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 14:28:55,583 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 14:28:55,585 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 14:28:55,874 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 14:28:55,875 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 14:28:56,204 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 14:28:56,205 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 14:28:56,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:56 BoogieIcfgContainer [2024-10-11 14:28:56,206 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 14:28:56,208 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 14:28:56,208 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 14:28:56,211 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 14:28:56,211 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:28:54" (1/3) ... [2024-10-11 14:28:56,212 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bab4780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:28:56, skipping insertion in model container [2024-10-11 14:28:56,212 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:28:55" (2/3) ... [2024-10-11 14:28:56,213 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bab4780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:28:56, skipping insertion in model container [2024-10-11 14:28:56,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:28:56" (3/3) ... [2024-10-11 14:28:56,214 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-barrier.wvr.c [2024-10-11 14:28:56,230 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 14:28:56,231 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 14:28:56,231 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 14:28:56,318 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2024-10-11 14:28:56,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 74 transitions, 214 flow [2024-10-11 14:28:56,414 INFO L124 PetriNetUnfolderBase]: 4/62 cut-off events. [2024-10-11 14:28:56,414 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-11 14:28:56,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 62 events. 4/62 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 140 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 73. Up to 3 conditions per place. [2024-10-11 14:28:56,421 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 74 transitions, 214 flow [2024-10-11 14:28:56,425 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 61 transitions, 170 flow [2024-10-11 14:28:56,439 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 14:28:56,449 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;@13f9b00c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 14:28:56,449 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-10-11 14:28:56,478 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 14:28:56,478 INFO L124 PetriNetUnfolderBase]: 4/60 cut-off events. [2024-10-11 14:28:56,478 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-11 14:28:56,479 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:28:56,479 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:28:56,480 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-10-11 14:28:56,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:28:56,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1004146585, now seen corresponding path program 1 times [2024-10-11 14:28:56,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:28:56,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215210963] [2024-10-11 14:28:56,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:28:56,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:28:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:28:56,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:28:56,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:28:56,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215210963] [2024-10-11 14:28:56,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215210963] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:28:56,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:28:56,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 14:28:56,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488356241] [2024-10-11 14:28:56,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:28:56,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 14:28:56,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:28:57,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 14:28:57,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 14:28:57,022 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 78 [2024-10-11 14:28:57,024 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 61 transitions, 170 flow. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2024-10-11 14:28:57,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:28:57,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 78 [2024-10-11 14:28:57,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:28:58,305 INFO L124 PetriNetUnfolderBase]: 6924/10951 cut-off events. [2024-10-11 14:28:58,306 INFO L125 PetriNetUnfolderBase]: For 1451/1451 co-relation queries the response was YES. [2024-10-11 14:28:58,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22549 conditions, 10951 events. 6924/10951 cut-off events. For 1451/1451 co-relation queries the response was YES. Maximal size of possible extension queue 429. Compared 76957 event pairs, 4739 based on Foata normal form. 64/9611 useless extension candidates. Maximal degree in co-relation 22308. Up to 8154 conditions per place. [2024-10-11 14:28:58,407 INFO L140 encePairwiseOnDemand]: 75/78 looper letters, 55 selfloop transitions, 2 changer transitions 0/81 dead transitions. [2024-10-11 14:28:58,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 81 transitions, 348 flow [2024-10-11 14:28:58,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 14:28:58,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 14:28:58,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 148 transitions. [2024-10-11 14:28:58,418 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6324786324786325 [2024-10-11 14:28:58,420 INFO L175 Difference]: Start difference. First operand has 76 places, 61 transitions, 170 flow. Second operand 3 states and 148 transitions. [2024-10-11 14:28:58,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 81 transitions, 348 flow [2024-10-11 14:28:58,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 81 transitions, 300 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-10-11 14:28:58,459 INFO L231 Difference]: Finished difference. Result has 67 places, 61 transitions, 146 flow [2024-10-11 14:28:58,461 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=146, PETRI_PLACES=67, PETRI_TRANSITIONS=61} [2024-10-11 14:28:58,466 INFO L277 CegarLoopForPetriNet]: 76 programPoint places, -9 predicate places. [2024-10-11 14:28:58,466 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 61 transitions, 146 flow [2024-10-11 14:28:58,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2024-10-11 14:28:58,467 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:28:58,467 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:28:58,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 14:28:58,468 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-10-11 14:28:58,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:28:58,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1302936679, now seen corresponding path program 2 times [2024-10-11 14:28:58,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:28:58,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207276363] [2024-10-11 14:28:58,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:28:58,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:28:58,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:28:58,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:28:58,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:28:58,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207276363] [2024-10-11 14:28:58,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207276363] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:28:58,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:28:58,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 14:28:58,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944767002] [2024-10-11 14:28:58,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:28:58,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 14:28:58,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:28:58,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 14:28:58,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 14:28:58,649 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 78 [2024-10-11 14:28:58,649 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 61 transitions, 146 flow. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2024-10-11 14:28:58,650 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:28:58,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 78 [2024-10-11 14:28:58,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:28:59,504 INFO L124 PetriNetUnfolderBase]: 5675/9003 cut-off events. [2024-10-11 14:28:59,507 INFO L125 PetriNetUnfolderBase]: For 923/923 co-relation queries the response was YES. [2024-10-11 14:28:59,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17458 conditions, 9003 events. 5675/9003 cut-off events. For 923/923 co-relation queries the response was YES. Maximal size of possible extension queue 375. Compared 60616 event pairs, 3936 based on Foata normal form. 63/8084 useless extension candidates. Maximal degree in co-relation 16016. Up to 6533 conditions per place. [2024-10-11 14:28:59,561 INFO L140 encePairwiseOnDemand]: 75/78 looper letters, 52 selfloop transitions, 2 changer transitions 0/78 dead transitions. [2024-10-11 14:28:59,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 78 transitions, 300 flow [2024-10-11 14:28:59,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 14:28:59,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 14:28:59,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 145 transitions. [2024-10-11 14:28:59,565 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6196581196581197 [2024-10-11 14:28:59,565 INFO L175 Difference]: Start difference. First operand has 67 places, 61 transitions, 146 flow. Second operand 3 states and 145 transitions. [2024-10-11 14:28:59,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 78 transitions, 300 flow [2024-10-11 14:28:59,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 78 transitions, 294 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 14:28:59,568 INFO L231 Difference]: Finished difference. Result has 68 places, 61 transitions, 150 flow [2024-10-11 14:28:59,569 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=150, PETRI_PLACES=68, PETRI_TRANSITIONS=61} [2024-10-11 14:28:59,570 INFO L277 CegarLoopForPetriNet]: 76 programPoint places, -8 predicate places. [2024-10-11 14:28:59,570 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 61 transitions, 150 flow [2024-10-11 14:28:59,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2024-10-11 14:28:59,571 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:28:59,571 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:28:59,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 14:28:59,572 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-10-11 14:28:59,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:28:59,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1020179123, now seen corresponding path program 3 times [2024-10-11 14:28:59,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:28:59,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690672040] [2024-10-11 14:28:59,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:28:59,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:28:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:28:59,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:28:59,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:28:59,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690672040] [2024-10-11 14:28:59,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690672040] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:28:59,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:28:59,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 14:28:59,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611222377] [2024-10-11 14:28:59,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:28:59,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 14:28:59,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:28:59,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 14:28:59,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 14:28:59,700 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 78 [2024-10-11 14:28:59,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 61 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2024-10-11 14:28:59,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:28:59,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 78 [2024-10-11 14:28:59,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:29:00,514 INFO L124 PetriNetUnfolderBase]: 4906/7355 cut-off events. [2024-10-11 14:29:00,515 INFO L125 PetriNetUnfolderBase]: For 1156/1156 co-relation queries the response was YES. [2024-10-11 14:29:00,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15027 conditions, 7355 events. 4906/7355 cut-off events. For 1156/1156 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 42219 event pairs, 2954 based on Foata normal form. 126/6853 useless extension candidates. Maximal degree in co-relation 6295. Up to 5656 conditions per place. [2024-10-11 14:29:00,563 INFO L140 encePairwiseOnDemand]: 75/78 looper letters, 53 selfloop transitions, 2 changer transitions 0/79 dead transitions. [2024-10-11 14:29:00,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 79 transitions, 308 flow [2024-10-11 14:29:00,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 14:29:00,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 14:29:00,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 146 transitions. [2024-10-11 14:29:00,566 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6239316239316239 [2024-10-11 14:29:00,566 INFO L175 Difference]: Start difference. First operand has 68 places, 61 transitions, 150 flow. Second operand 3 states and 146 transitions. [2024-10-11 14:29:00,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 79 transitions, 308 flow [2024-10-11 14:29:00,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 79 transitions, 302 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 14:29:00,571 INFO L231 Difference]: Finished difference. Result has 69 places, 61 transitions, 154 flow [2024-10-11 14:29:00,572 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=69, PETRI_TRANSITIONS=61} [2024-10-11 14:29:00,572 INFO L277 CegarLoopForPetriNet]: 76 programPoint places, -7 predicate places. [2024-10-11 14:29:00,572 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 61 transitions, 154 flow [2024-10-11 14:29:00,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2024-10-11 14:29:00,573 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:29:00,573 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:29:00,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 14:29:00,573 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-10-11 14:29:00,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:29:00,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1937487997, now seen corresponding path program 4 times [2024-10-11 14:29:00,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:29:00,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899306943] [2024-10-11 14:29:00,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:29:00,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:29:00,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:29:00,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:29:00,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:29:00,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899306943] [2024-10-11 14:29:00,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899306943] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:29:00,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:29:00,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 14:29:00,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996048344] [2024-10-11 14:29:00,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:29:00,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 14:29:00,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:29:00,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 14:29:00,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 14:29:00,789 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 78 [2024-10-11 14:29:00,789 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 61 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2024-10-11 14:29:00,789 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:29:00,789 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 78 [2024-10-11 14:29:00,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:29:01,411 INFO L124 PetriNetUnfolderBase]: 5261/8245 cut-off events. [2024-10-11 14:29:01,411 INFO L125 PetriNetUnfolderBase]: For 1807/1813 co-relation queries the response was YES. [2024-10-11 14:29:01,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16935 conditions, 8245 events. 5261/8245 cut-off events. For 1807/1813 co-relation queries the response was YES. Maximal size of possible extension queue 336. Compared 52558 event pairs, 3600 based on Foata normal form. 58/7260 useless extension candidates. Maximal degree in co-relation 7104. Up to 6129 conditions per place. [2024-10-11 14:29:01,468 INFO L140 encePairwiseOnDemand]: 75/78 looper letters, 54 selfloop transitions, 2 changer transitions 0/80 dead transitions. [2024-10-11 14:29:01,468 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 80 transitions, 320 flow [2024-10-11 14:29:01,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 14:29:01,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 14:29:01,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 147 transitions. [2024-10-11 14:29:01,470 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6282051282051282 [2024-10-11 14:29:01,470 INFO L175 Difference]: Start difference. First operand has 69 places, 61 transitions, 154 flow. Second operand 3 states and 147 transitions. [2024-10-11 14:29:01,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 80 transitions, 320 flow [2024-10-11 14:29:01,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 80 transitions, 314 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 14:29:01,473 INFO L231 Difference]: Finished difference. Result has 70 places, 61 transitions, 158 flow [2024-10-11 14:29:01,473 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=70, PETRI_TRANSITIONS=61} [2024-10-11 14:29:01,474 INFO L277 CegarLoopForPetriNet]: 76 programPoint places, -6 predicate places. [2024-10-11 14:29:01,474 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 61 transitions, 158 flow [2024-10-11 14:29:01,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2024-10-11 14:29:01,475 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:29:01,475 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:29:01,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 14:29:01,475 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-10-11 14:29:01,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:29:01,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1866415576, now seen corresponding path program 1 times [2024-10-11 14:29:01,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:29:01,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391737511] [2024-10-11 14:29:01,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:29:01,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:29:01,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:29:02,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:29:02,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:29:02,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391737511] [2024-10-11 14:29:02,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391737511] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:29:02,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:29:02,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-11 14:29:02,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848562801] [2024-10-11 14:29:02,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:29:02,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-11 14:29:02,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:29:02,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-11 14:29:02,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2024-10-11 14:29:02,475 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 78 [2024-10-11 14:29:02,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 61 transitions, 158 flow. Second operand has 17 states, 17 states have (on average 17.823529411764707) internal successors, (303), 17 states have internal predecessors, (303), 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) [2024-10-11 14:29:02,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:29:02,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 78 [2024-10-11 14:29:02,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:29:08,408 INFO L124 PetriNetUnfolderBase]: 57182/74439 cut-off events. [2024-10-11 14:29:08,409 INFO L125 PetriNetUnfolderBase]: For 10403/10403 co-relation queries the response was YES. [2024-10-11 14:29:08,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159001 conditions, 74439 events. 57182/74439 cut-off events. For 10403/10403 co-relation queries the response was YES. Maximal size of possible extension queue 1173. Compared 376968 event pairs, 21658 based on Foata normal form. 1/72206 useless extension candidates. Maximal degree in co-relation 69913. Up to 60973 conditions per place. [2024-10-11 14:29:08,830 INFO L140 encePairwiseOnDemand]: 60/78 looper letters, 239 selfloop transitions, 70 changer transitions 34/352 dead transitions. [2024-10-11 14:29:08,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 352 transitions, 1535 flow [2024-10-11 14:29:08,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-11 14:29:08,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-10-11 14:29:08,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 734 transitions. [2024-10-11 14:29:08,834 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3619329388560158 [2024-10-11 14:29:08,834 INFO L175 Difference]: Start difference. First operand has 70 places, 61 transitions, 158 flow. Second operand 26 states and 734 transitions. [2024-10-11 14:29:08,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 352 transitions, 1535 flow [2024-10-11 14:29:08,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 352 transitions, 1529 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 14:29:08,854 INFO L231 Difference]: Finished difference. Result has 104 places, 130 transitions, 523 flow [2024-10-11 14:29:08,857 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=523, PETRI_PLACES=104, PETRI_TRANSITIONS=130} [2024-10-11 14:29:08,858 INFO L277 CegarLoopForPetriNet]: 76 programPoint places, 28 predicate places. [2024-10-11 14:29:08,858 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 130 transitions, 523 flow [2024-10-11 14:29:08,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 17.823529411764707) internal successors, (303), 17 states have internal predecessors, (303), 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) [2024-10-11 14:29:08,859 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:29:08,859 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:29:08,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 14:29:08,859 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-10-11 14:29:08,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:29:08,859 INFO L85 PathProgramCache]: Analyzing trace with hash 2135214947, now seen corresponding path program 5 times [2024-10-11 14:29:08,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:29:08,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469479315] [2024-10-11 14:29:08,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:29:08,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:29:08,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:29:09,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:29:09,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:29:09,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469479315] [2024-10-11 14:29:09,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469479315] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:29:09,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:29:09,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-11 14:29:09,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349094390] [2024-10-11 14:29:09,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:29:09,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-11 14:29:09,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:29:09,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-11 14:29:09,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2024-10-11 14:29:09,638 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 78 [2024-10-11 14:29:09,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 130 transitions, 523 flow. Second operand has 17 states, 17 states have (on average 17.823529411764707) internal successors, (303), 17 states have internal predecessors, (303), 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) [2024-10-11 14:29:09,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:29:09,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 78 [2024-10-11 14:29:09,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:29:21,423 INFO L124 PetriNetUnfolderBase]: 95910/124073 cut-off events. [2024-10-11 14:29:21,423 INFO L125 PetriNetUnfolderBase]: For 104998/104998 co-relation queries the response was YES. [2024-10-11 14:29:21,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 333123 conditions, 124073 events. 95910/124073 cut-off events. For 104998/104998 co-relation queries the response was YES. Maximal size of possible extension queue 1938. Compared 662065 event pairs, 24648 based on Foata normal form. 2/120541 useless extension candidates. Maximal degree in co-relation 333097. Up to 76682 conditions per place. [2024-10-11 14:29:22,570 INFO L140 encePairwiseOnDemand]: 60/78 looper letters, 719 selfloop transitions, 305 changer transitions 80/1113 dead transitions. [2024-10-11 14:29:22,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 1113 transitions, 6130 flow [2024-10-11 14:29:22,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2024-10-11 14:29:22,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2024-10-11 14:29:22,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 2339 transitions. [2024-10-11 14:29:22,583 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3446802239905688 [2024-10-11 14:29:22,583 INFO L175 Difference]: Start difference. First operand has 104 places, 130 transitions, 523 flow. Second operand 87 states and 2339 transitions. [2024-10-11 14:29:22,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 1113 transitions, 6130 flow [2024-10-11 14:29:23,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 1113 transitions, 6126 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-11 14:29:23,029 INFO L231 Difference]: Finished difference. Result has 204 places, 471 transitions, 3058 flow [2024-10-11 14:29:23,029 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=521, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=87, PETRI_FLOW=3058, PETRI_PLACES=204, PETRI_TRANSITIONS=471} [2024-10-11 14:29:23,031 INFO L277 CegarLoopForPetriNet]: 76 programPoint places, 128 predicate places. [2024-10-11 14:29:23,031 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 471 transitions, 3058 flow [2024-10-11 14:29:23,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 17.823529411764707) internal successors, (303), 17 states have internal predecessors, (303), 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) [2024-10-11 14:29:23,032 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:29:23,032 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:29:23,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 14:29:23,033 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2024-10-11 14:29:23,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:29:23,033 INFO L85 PathProgramCache]: Analyzing trace with hash 394257695, now seen corresponding path program 6 times [2024-10-11 14:29:23,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:29:23,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230176428] [2024-10-11 14:29:23,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:29:23,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:29:23,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:29:23,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:29:23,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:29:23,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230176428] [2024-10-11 14:29:23,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230176428] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:29:23,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:29:23,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-11 14:29:23,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997232634] [2024-10-11 14:29:23,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:29:23,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-11 14:29:23,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:29:23,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-11 14:29:23,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2024-10-11 14:29:23,640 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 78 [2024-10-11 14:29:23,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 471 transitions, 3058 flow. Second operand has 17 states, 17 states have (on average 17.823529411764707) internal successors, (303), 17 states have internal predecessors, (303), 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) [2024-10-11 14:29:23,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:29:23,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 78 [2024-10-11 14:29:23,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:29:40,332 INFO L124 PetriNetUnfolderBase]: 118280/152999 cut-off events. [2024-10-11 14:29:40,332 INFO L125 PetriNetUnfolderBase]: For 266385/266409 co-relation queries the response was YES. [2024-10-11 14:29:41,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 486059 conditions, 152999 events. 118280/152999 cut-off events. For 266385/266409 co-relation queries the response was YES. Maximal size of possible extension queue 2470. Compared 839479 event pairs, 33089 based on Foata normal form. 25/149000 useless extension candidates. Maximal degree in co-relation 486009. Up to 120432 conditions per place. [2024-10-11 14:29:41,972 INFO L140 encePairwiseOnDemand]: 60/78 looper letters, 787 selfloop transitions, 193 changer transitions 61/1050 dead transitions. [2024-10-11 14:29:41,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 244 places, 1050 transitions, 7783 flow [2024-10-11 14:29:41,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-10-11 14:29:41,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2024-10-11 14:29:41,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 1303 transitions. [2024-10-11 14:29:41,977 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36315496098104794 [2024-10-11 14:29:41,977 INFO L175 Difference]: Start difference. First operand has 204 places, 471 transitions, 3058 flow. Second operand 46 states and 1303 transitions. [2024-10-11 14:29:41,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 244 places, 1050 transitions, 7783 flow