./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ebedbc62bd44b0c214a81c07c6f99e850a5d96675b77716f8547d1b39e8b2cf8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:31:25,796 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:31:25,919 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-08 17:31:25,931 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:31:25,932 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:31:25,986 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:31:25,987 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:31:25,988 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:31:25,989 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:31:25,990 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:31:25,991 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:31:25,991 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:31:25,992 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:31:25,992 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:31:25,992 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:31:25,995 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:31:25,996 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:31:25,996 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:31:25,996 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:31:25,997 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:31:25,997 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:31:26,001 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:31:26,002 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-08 17:31:26,002 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:31:26,002 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 17:31:26,003 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:31:26,003 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:31:26,003 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:31:26,004 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:31:26,004 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:31:26,004 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:31:26,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:31:26,009 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:31:26,009 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:31:26,010 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:31:26,010 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:31:26,010 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:31:26,011 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:31:26,012 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:31:26,012 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:31:26,013 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:31:26,014 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebedbc62bd44b0c214a81c07c6f99e850a5d96675b77716f8547d1b39e8b2cf8 [2024-11-08 17:31:26,370 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:31:26,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:31:26,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:31:26,414 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:31:26,415 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:31:26,416 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i Unable to find full path for "g++" [2024-11-08 17:31:28,919 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:31:29,351 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:31:29,354 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/sv-benchmarks/c/goblint-regression/06-symbeq_02-funloop_norace.i [2024-11-08 17:31:29,383 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/data/e33666ba3/41237ddc21d64c2a80c405331aa5071f/FLAG88520f045 [2024-11-08 17:31:29,413 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/data/e33666ba3/41237ddc21d64c2a80c405331aa5071f [2024-11-08 17:31:29,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:31:29,420 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:31:29,422 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:31:29,422 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:31:29,430 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:31:29,434 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:31:29" (1/1) ... [2024-11-08 17:31:29,436 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35b78a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:31:29, skipping insertion in model container [2024-11-08 17:31:29,437 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:31:29" (1/1) ... [2024-11-08 17:31:29,520 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:31:30,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:31:30,235 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:31:30,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:31:30,404 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:31:30,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:31:30 WrapperNode [2024-11-08 17:31:30,405 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:31:30,407 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:31:30,407 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:31:30,407 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:31:30,416 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:31:30" (1/1) ... [2024-11-08 17:31:30,436 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:31:30" (1/1) ... [2024-11-08 17:31:30,475 INFO L138 Inliner]: procedures = 263, calls = 70, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 153 [2024-11-08 17:31:30,475 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:31:30,476 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:31:30,476 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:31:30,477 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:31:30,489 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:31:30" (1/1) ... [2024-11-08 17:31:30,489 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:31:30" (1/1) ... [2024-11-08 17:31:30,495 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:31:30" (1/1) ... [2024-11-08 17:31:30,495 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:31:30" (1/1) ... [2024-11-08 17:31:30,507 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:31:30" (1/1) ... [2024-11-08 17:31:30,512 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:31:30" (1/1) ... [2024-11-08 17:31:30,518 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:31:30" (1/1) ... [2024-11-08 17:31:30,520 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:31:30" (1/1) ... [2024-11-08 17:31:30,528 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:31:30,529 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:31:30,529 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:31:30,530 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:31:30,531 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:31:30" (1/1) ... [2024-11-08 17:31:30,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:31:30,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:31:30,578 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:31:30,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:31:30,621 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 17:31:30,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 17:31:30,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 17:31:30,622 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 17:31:30,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:31:30,622 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 17:31:30,622 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 17:31:30,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 17:31:30,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:31:30,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:31:30,624 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 17:31:30,796 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:31:30,798 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:31:31,273 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 17:31:31,274 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:31:31,324 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:31:31,325 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 17:31:31,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:31:31 BoogieIcfgContainer [2024-11-08 17:31:31,325 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:31:31,328 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:31:31,328 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:31:31,333 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:31:31,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:31:29" (1/3) ... [2024-11-08 17:31:31,334 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f6ed261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:31:31, skipping insertion in model container [2024-11-08 17:31:31,335 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:31:30" (2/3) ... [2024-11-08 17:31:31,335 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f6ed261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:31:31, skipping insertion in model container [2024-11-08 17:31:31,335 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:31:31" (3/3) ... [2024-11-08 17:31:31,337 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_02-funloop_norace.i [2024-11-08 17:31:31,361 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:31:31,361 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-08 17:31:31,361 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 17:31:31,446 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-08 17:31:31,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 165 transitions, 334 flow [2024-11-08 17:31:31,618 INFO L124 PetriNetUnfolderBase]: 6/164 cut-off events. [2024-11-08 17:31:31,621 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:31:31,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 164 events. 6/164 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 130 event pairs, 0 based on Foata normal form. 0/154 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2024-11-08 17:31:31,630 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 165 transitions, 334 flow [2024-11-08 17:31:31,639 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 162 places, 164 transitions, 331 flow [2024-11-08 17:31:31,659 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:31:31,670 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;@7ad05ff4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:31:31,671 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-08 17:31:31,727 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:31:31,728 INFO L124 PetriNetUnfolderBase]: 4/122 cut-off events. [2024-11-08 17:31:31,728 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:31:31,728 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:31:31,729 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:31:31,730 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-08 17:31:31,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:31:31,738 INFO L85 PathProgramCache]: Analyzing trace with hash -55438183, now seen corresponding path program 1 times [2024-11-08 17:31:31,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:31:31,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013622081] [2024-11-08 17:31:31,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:31,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:31:32,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:32,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:31:32,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:31:32,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013622081] [2024-11-08 17:31:32,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013622081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:31:32,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:31:32,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:31:32,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122650096] [2024-11-08 17:31:32,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:31:32,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:31:32,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:31:32,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:31:32,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:31:32,636 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 165 [2024-11-08 17:31:32,647 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 164 transitions, 331 flow. Second operand has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:32,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:31:32,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 165 [2024-11-08 17:31:32,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:31:32,802 INFO L124 PetriNetUnfolderBase]: 18/257 cut-off events. [2024-11-08 17:31:32,802 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 17:31:32,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 257 events. 18/257 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 408 event pairs, 6 based on Foata normal form. 2/240 useless extension candidates. Maximal degree in co-relation 191. Up to 29 conditions per place. [2024-11-08 17:31:32,810 INFO L140 encePairwiseOnDemand]: 161/165 looper letters, 11 selfloop transitions, 2 changer transitions 0/165 dead transitions. [2024-11-08 17:31:32,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 165 transitions, 359 flow [2024-11-08 17:31:32,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:31:32,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:31:32,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 474 transitions. [2024-11-08 17:31:32,837 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9575757575757575 [2024-11-08 17:31:32,839 INFO L175 Difference]: Start difference. First operand has 162 places, 164 transitions, 331 flow. Second operand 3 states and 474 transitions. [2024-11-08 17:31:32,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 165 transitions, 359 flow [2024-11-08 17:31:32,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 165 transitions, 358 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:31:32,857 INFO L231 Difference]: Finished difference. Result has 164 places, 165 transitions, 344 flow [2024-11-08 17:31:32,860 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=164, PETRI_TRANSITIONS=165} [2024-11-08 17:31:32,866 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 2 predicate places. [2024-11-08 17:31:32,866 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 165 transitions, 344 flow [2024-11-08 17:31:32,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:32,869 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:31:32,869 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:31:32,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:31:32,871 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-08 17:31:32,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:31:32,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1560624921, now seen corresponding path program 1 times [2024-11-08 17:31:32,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:31:32,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333205956] [2024-11-08 17:31:32,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:32,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:31:32,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:33,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:31:33,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:31:33,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333205956] [2024-11-08 17:31:33,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333205956] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:31:33,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461616454] [2024-11-08 17:31:33,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:33,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:31:33,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:31:33,236 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:31:33,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:31:33,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:33,408 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 17:31:33,420 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:31:33,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:31:33,555 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:31:33,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:31:33,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461616454] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:31:33,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:31:33,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-08 17:31:33,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318664989] [2024-11-08 17:31:33,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:31:33,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:31:33,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:31:33,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:31:33,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:31:33,746 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 165 [2024-11-08 17:31:33,750 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 165 transitions, 344 flow. Second operand has 10 states, 10 states have (on average 151.3) internal successors, (1513), 10 states have internal predecessors, (1513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:33,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:31:33,750 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 165 [2024-11-08 17:31:33,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:31:33,973 INFO L124 PetriNetUnfolderBase]: 17/264 cut-off events. [2024-11-08 17:31:33,974 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 17:31:33,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 264 events. 17/264 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 404 event pairs, 6 based on Foata normal form. 4/249 useless extension candidates. Maximal degree in co-relation 233. Up to 28 conditions per place. [2024-11-08 17:31:33,979 INFO L140 encePairwiseOnDemand]: 158/165 looper letters, 17 selfloop transitions, 9 changer transitions 0/174 dead transitions. [2024-11-08 17:31:33,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 174 transitions, 414 flow [2024-11-08 17:31:33,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:31:33,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 17:31:33,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1371 transitions. [2024-11-08 17:31:33,989 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9232323232323232 [2024-11-08 17:31:33,989 INFO L175 Difference]: Start difference. First operand has 164 places, 165 transitions, 344 flow. Second operand 9 states and 1371 transitions. [2024-11-08 17:31:33,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 174 transitions, 414 flow [2024-11-08 17:31:33,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 174 transitions, 412 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:31:34,000 INFO L231 Difference]: Finished difference. Result has 174 places, 170 transitions, 388 flow [2024-11-08 17:31:34,001 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=388, PETRI_PLACES=174, PETRI_TRANSITIONS=170} [2024-11-08 17:31:34,002 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 12 predicate places. [2024-11-08 17:31:34,002 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 170 transitions, 388 flow [2024-11-08 17:31:34,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 151.3) internal successors, (1513), 10 states have internal predecessors, (1513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:34,004 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:31:34,004 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:31:34,030 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 17:31:34,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:31:34,206 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-08 17:31:34,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:31:34,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1875583491, now seen corresponding path program 2 times [2024-11-08 17:31:34,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:31:34,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785367262] [2024-11-08 17:31:34,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:34,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:31:34,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:34,740 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:31:34,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:31:34,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785367262] [2024-11-08 17:31:34,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785367262] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:31:34,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278099206] [2024-11-08 17:31:34,745 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 17:31:34,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:31:34,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:31:34,749 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:31:34,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 17:31:34,910 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 17:31:34,911 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 17:31:34,913 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 17:31:34,921 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:31:34,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 17:31:35,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-08 17:31:35,077 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:31:35,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-08 17:31:35,152 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:31:35,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-11-08 17:31:35,214 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-08 17:31:35,215 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:31:35,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278099206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:31:35,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:31:35,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-08 17:31:35,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83957182] [2024-11-08 17:31:35,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:31:35,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:31:35,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:31:35,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:31:35,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-08 17:31:35,450 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 165 [2024-11-08 17:31:35,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 170 transitions, 388 flow. Second operand has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:35,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:31:35,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 165 [2024-11-08 17:31:35,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:31:35,882 INFO L124 PetriNetUnfolderBase]: 170/883 cut-off events. [2024-11-08 17:31:35,882 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-08 17:31:35,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1211 conditions, 883 events. 170/883 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4885 event pairs, 62 based on Foata normal form. 0/804 useless extension candidates. Maximal degree in co-relation 1097. Up to 240 conditions per place. [2024-11-08 17:31:35,892 INFO L140 encePairwiseOnDemand]: 154/165 looper letters, 30 selfloop transitions, 22 changer transitions 0/199 dead transitions. [2024-11-08 17:31:35,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 199 transitions, 550 flow [2024-11-08 17:31:35,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:31:35,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:31:35,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 905 transitions. [2024-11-08 17:31:35,897 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9141414141414141 [2024-11-08 17:31:35,897 INFO L175 Difference]: Start difference. First operand has 174 places, 170 transitions, 388 flow. Second operand 6 states and 905 transitions. [2024-11-08 17:31:35,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 199 transitions, 550 flow [2024-11-08 17:31:35,903 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 199 transitions, 544 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-08 17:31:35,912 INFO L231 Difference]: Finished difference. Result has 183 places, 191 transitions, 532 flow [2024-11-08 17:31:35,912 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=532, PETRI_PLACES=183, PETRI_TRANSITIONS=191} [2024-11-08 17:31:35,913 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 21 predicate places. [2024-11-08 17:31:35,913 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 191 transitions, 532 flow [2024-11-08 17:31:35,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:35,914 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:31:35,915 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:31:35,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 17:31:36,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:31:36,118 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-08 17:31:36,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:31:36,119 INFO L85 PathProgramCache]: Analyzing trace with hash -2044322120, now seen corresponding path program 1 times [2024-11-08 17:31:36,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:31:36,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039036086] [2024-11-08 17:31:36,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:36,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:31:36,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:36,467 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:31:36,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:31:36,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039036086] [2024-11-08 17:31:36,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039036086] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:31:36,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262601530] [2024-11-08 17:31:36,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:36,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:31:36,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:31:36,472 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:31:36,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 17:31:36,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:36,610 INFO L255 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 17:31:36,614 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:31:36,707 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:31:36,708 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:31:36,872 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:31:36,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262601530] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:31:36,873 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:31:36,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-08 17:31:36,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593941587] [2024-11-08 17:31:36,873 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:31:36,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 17:31:36,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:31:36,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 17:31:36,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-08 17:31:36,949 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 165 [2024-11-08 17:31:36,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 191 transitions, 532 flow. Second operand has 18 states, 18 states have (on average 151.38888888888889) internal successors, (2725), 18 states have internal predecessors, (2725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:36,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:31:36,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 165 [2024-11-08 17:31:36,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:31:37,444 INFO L124 PetriNetUnfolderBase]: 71/613 cut-off events. [2024-11-08 17:31:37,444 INFO L125 PetriNetUnfolderBase]: For 50/53 co-relation queries the response was YES. [2024-11-08 17:31:37,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 915 conditions, 613 events. 71/613 cut-off events. For 50/53 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2361 event pairs, 11 based on Foata normal form. 4/572 useless extension candidates. Maximal degree in co-relation 713. Up to 63 conditions per place. [2024-11-08 17:31:37,450 INFO L140 encePairwiseOnDemand]: 159/165 looper letters, 25 selfloop transitions, 21 changer transitions 0/215 dead transitions. [2024-11-08 17:31:37,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 215 transitions, 724 flow [2024-11-08 17:31:37,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-08 17:31:37,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-08 17:31:37,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3179 transitions. [2024-11-08 17:31:37,459 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9174603174603174 [2024-11-08 17:31:37,460 INFO L175 Difference]: Start difference. First operand has 183 places, 191 transitions, 532 flow. Second operand 21 states and 3179 transitions. [2024-11-08 17:31:37,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 215 transitions, 724 flow [2024-11-08 17:31:37,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 215 transitions, 724 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:31:37,469 INFO L231 Difference]: Finished difference. Result has 208 places, 204 transitions, 662 flow [2024-11-08 17:31:37,470 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=662, PETRI_PLACES=208, PETRI_TRANSITIONS=204} [2024-11-08 17:31:37,471 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 46 predicate places. [2024-11-08 17:31:37,471 INFO L471 AbstractCegarLoop]: Abstraction has has 208 places, 204 transitions, 662 flow [2024-11-08 17:31:37,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 151.38888888888889) internal successors, (2725), 18 states have internal predecessors, (2725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:37,474 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:31:37,474 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:31:37,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 17:31:37,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:31:37,679 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-08 17:31:37,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:31:37,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1980203760, now seen corresponding path program 2 times [2024-11-08 17:31:37,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:31:37,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472540278] [2024-11-08 17:31:37,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:37,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:31:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:38,409 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:31:38,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:31:38,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472540278] [2024-11-08 17:31:38,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472540278] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:31:38,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286050346] [2024-11-08 17:31:38,414 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 17:31:38,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:31:38,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:31:38,418 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:31:38,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 17:31:38,567 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 17:31:38,567 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 17:31:38,569 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 17:31:38,574 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:31:38,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 17:31:38,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2024-11-08 17:31:38,704 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:31:38,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-08 17:31:38,778 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:31:38,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2024-11-08 17:31:38,843 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2024-11-08 17:31:38,845 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:31:38,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286050346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:31:38,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:31:38,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-08 17:31:38,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28000692] [2024-11-08 17:31:38,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:31:38,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:31:38,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:31:38,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:31:38,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-08 17:31:39,058 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 165 [2024-11-08 17:31:39,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 204 transitions, 662 flow. Second operand has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:39,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:31:39,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 165 [2024-11-08 17:31:39,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:31:39,479 INFO L124 PetriNetUnfolderBase]: 230/1153 cut-off events. [2024-11-08 17:31:39,479 INFO L125 PetriNetUnfolderBase]: For 228/248 co-relation queries the response was YES. [2024-11-08 17:31:39,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1941 conditions, 1153 events. 230/1153 cut-off events. For 228/248 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 6801 event pairs, 62 based on Foata normal form. 5/1072 useless extension candidates. Maximal degree in co-relation 1739. Up to 330 conditions per place. [2024-11-08 17:31:39,489 INFO L140 encePairwiseOnDemand]: 154/165 looper letters, 47 selfloop transitions, 30 changer transitions 0/241 dead transitions. [2024-11-08 17:31:39,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 241 transitions, 932 flow [2024-11-08 17:31:39,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:31:39,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:31:39,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 905 transitions. [2024-11-08 17:31:39,493 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9141414141414141 [2024-11-08 17:31:39,493 INFO L175 Difference]: Start difference. First operand has 208 places, 204 transitions, 662 flow. Second operand 6 states and 905 transitions. [2024-11-08 17:31:39,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 241 transitions, 932 flow [2024-11-08 17:31:39,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 241 transitions, 908 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-08 17:31:39,504 INFO L231 Difference]: Finished difference. Result has 212 places, 233 transitions, 888 flow [2024-11-08 17:31:39,505 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=888, PETRI_PLACES=212, PETRI_TRANSITIONS=233} [2024-11-08 17:31:39,506 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 50 predicate places. [2024-11-08 17:31:39,506 INFO L471 AbstractCegarLoop]: Abstraction has has 212 places, 233 transitions, 888 flow [2024-11-08 17:31:39,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:39,507 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:31:39,508 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:31:39,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 17:31:39,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:31:39,713 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-08 17:31:39,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:31:39,713 INFO L85 PathProgramCache]: Analyzing trace with hash 560379584, now seen corresponding path program 1 times [2024-11-08 17:31:39,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:31:39,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305875496] [2024-11-08 17:31:39,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:39,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:31:39,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:40,333 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:31:40,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:31:40,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305875496] [2024-11-08 17:31:40,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305875496] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:31:40,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925462173] [2024-11-08 17:31:40,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:40,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:31:40,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:31:40,338 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:31:40,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 17:31:40,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:40,486 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 17:31:40,490 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:31:40,634 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:31:40,634 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:31:41,009 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:31:41,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925462173] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:31:41,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:31:41,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-08 17:31:41,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131207232] [2024-11-08 17:31:41,010 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:31:41,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-08 17:31:41,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:31:41,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-08 17:31:41,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-08 17:31:41,058 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 165 [2024-11-08 17:31:41,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 233 transitions, 888 flow. Second operand has 23 states, 23 states have (on average 151.52173913043478) internal successors, (3485), 23 states have internal predecessors, (3485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:41,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:31:41,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 165 [2024-11-08 17:31:41,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:31:41,770 INFO L124 PetriNetUnfolderBase]: 132/886 cut-off events. [2024-11-08 17:31:41,771 INFO L125 PetriNetUnfolderBase]: For 366/379 co-relation queries the response was YES. [2024-11-08 17:31:41,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1635 conditions, 886 events. 132/886 cut-off events. For 366/379 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4448 event pairs, 14 based on Foata normal form. 8/841 useless extension candidates. Maximal degree in co-relation 1339. Up to 84 conditions per place. [2024-11-08 17:31:41,779 INFO L140 encePairwiseOnDemand]: 159/165 looper letters, 31 selfloop transitions, 30 changer transitions 0/259 dead transitions. [2024-11-08 17:31:41,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 259 transitions, 1150 flow [2024-11-08 17:31:41,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-08 17:31:41,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-08 17:31:41,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 4534 transitions. [2024-11-08 17:31:41,791 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.915959595959596 [2024-11-08 17:31:41,791 INFO L175 Difference]: Start difference. First operand has 212 places, 233 transitions, 888 flow. Second operand 30 states and 4534 transitions. [2024-11-08 17:31:41,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 259 transitions, 1150 flow [2024-11-08 17:31:41,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 259 transitions, 1150 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:31:41,803 INFO L231 Difference]: Finished difference. Result has 245 places, 243 transitions, 1040 flow [2024-11-08 17:31:41,804 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=888, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1040, PETRI_PLACES=245, PETRI_TRANSITIONS=243} [2024-11-08 17:31:41,805 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 83 predicate places. [2024-11-08 17:31:41,805 INFO L471 AbstractCegarLoop]: Abstraction has has 245 places, 243 transitions, 1040 flow [2024-11-08 17:31:41,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 151.52173913043478) internal successors, (3485), 23 states have internal predecessors, (3485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:41,808 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:31:41,808 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:31:41,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 17:31:42,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0a5e17e-b686-49d5-b553-6a90b25ff7c0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:31:42,013 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-08 17:31:42,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:31:42,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1000548950, now seen corresponding path program 2 times [2024-11-08 17:31:42,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:31:42,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299906327] [2024-11-08 17:31:42,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:42,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:31:42,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:43,034 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 17:31:43,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:31:43,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299906327] [2024-11-08 17:31:43,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299906327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:31:43,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:31:43,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:31:43,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334451157] [2024-11-08 17:31:43,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:31:43,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:31:43,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:31:43,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:31:43,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:31:43,182 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 165 [2024-11-08 17:31:43,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 243 transitions, 1040 flow. Second operand has 6 states, 6 states have (on average 138.5) internal successors, (831), 6 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:43,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:31:43,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 165 [2024-11-08 17:31:43,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:31:43,759 INFO L124 PetriNetUnfolderBase]: 454/1727 cut-off events. [2024-11-08 17:31:43,759 INFO L125 PetriNetUnfolderBase]: For 1004/1046 co-relation queries the response was YES. [2024-11-08 17:31:43,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3737 conditions, 1727 events. 454/1727 cut-off events. For 1004/1046 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 10849 event pairs, 107 based on Foata normal form. 12/1615 useless extension candidates. Maximal degree in co-relation 3450. Up to 718 conditions per place. [2024-11-08 17:31:43,774 INFO L140 encePairwiseOnDemand]: 150/165 looper letters, 76 selfloop transitions, 57 changer transitions 0/298 dead transitions. [2024-11-08 17:31:43,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 298 transitions, 1550 flow [2024-11-08 17:31:43,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:31:43,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:31:43,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 891 transitions. [2024-11-08 17:31:43,778 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9 [2024-11-08 17:31:43,778 INFO L175 Difference]: Start difference. First operand has 245 places, 243 transitions, 1040 flow. Second operand 6 states and 891 transitions. [2024-11-08 17:31:43,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 298 transitions, 1550 flow [2024-11-08 17:31:43,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 298 transitions, 1504 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-08 17:31:43,794 INFO L231 Difference]: Finished difference. Result has 237 places, 290 transitions, 1492 flow [2024-11-08 17:31:43,794 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=994, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1492, PETRI_PLACES=237, PETRI_TRANSITIONS=290} [2024-11-08 17:31:43,796 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 75 predicate places. [2024-11-08 17:31:43,796 INFO L471 AbstractCegarLoop]: Abstraction has has 237 places, 290 transitions, 1492 flow [2024-11-08 17:31:43,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 138.5) internal successors, (831), 6 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:43,797 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:31:43,797 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:31:43,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 17:31:43,798 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-08 17:31:43,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:31:43,798 INFO L85 PathProgramCache]: Analyzing trace with hash -201456144, now seen corresponding path program 1 times [2024-11-08 17:31:43,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:31:43,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73866504] [2024-11-08 17:31:43,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:43,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:31:43,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:44,684 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 17:31:44,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:31:44,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73866504] [2024-11-08 17:31:44,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73866504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:31:44,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:31:44,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:31:44,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763933448] [2024-11-08 17:31:44,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:31:44,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:31:44,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:31:44,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:31:44,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:31:44,873 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 165 [2024-11-08 17:31:44,874 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 290 transitions, 1492 flow. Second operand has 6 states, 6 states have (on average 138.5) internal successors, (831), 6 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:44,874 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:31:44,875 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 165 [2024-11-08 17:31:44,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:31:45,718 INFO L124 PetriNetUnfolderBase]: 586/2191 cut-off events. [2024-11-08 17:31:45,718 INFO L125 PetriNetUnfolderBase]: For 2459/2518 co-relation queries the response was YES. [2024-11-08 17:31:45,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5358 conditions, 2191 events. 586/2191 cut-off events. For 2459/2518 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 15071 event pairs, 113 based on Foata normal form. 13/2074 useless extension candidates. Maximal degree in co-relation 5088. Up to 894 conditions per place. [2024-11-08 17:31:45,742 INFO L140 encePairwiseOnDemand]: 150/165 looper letters, 113 selfloop transitions, 71 changer transitions 0/351 dead transitions. [2024-11-08 17:31:45,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 351 transitions, 2214 flow [2024-11-08 17:31:45,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:31:45,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:31:45,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 891 transitions. [2024-11-08 17:31:45,746 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9 [2024-11-08 17:31:45,746 INFO L175 Difference]: Start difference. First operand has 237 places, 290 transitions, 1492 flow. Second operand 6 states and 891 transitions. [2024-11-08 17:31:45,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 351 transitions, 2214 flow [2024-11-08 17:31:45,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 351 transitions, 2150 flow, removed 32 selfloop flow, removed 0 redundant places. [2024-11-08 17:31:45,780 INFO L231 Difference]: Finished difference. Result has 247 places, 343 transitions, 2104 flow [2024-11-08 17:31:45,781 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=1434, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2104, PETRI_PLACES=247, PETRI_TRANSITIONS=343} [2024-11-08 17:31:45,782 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 85 predicate places. [2024-11-08 17:31:45,784 INFO L471 AbstractCegarLoop]: Abstraction has has 247 places, 343 transitions, 2104 flow [2024-11-08 17:31:45,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 138.5) internal successors, (831), 6 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:45,785 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:31:45,785 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:31:45,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 17:31:45,785 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-08 17:31:45,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:31:45,786 INFO L85 PathProgramCache]: Analyzing trace with hash -715149835, now seen corresponding path program 1 times [2024-11-08 17:31:45,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:31:45,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720282129] [2024-11-08 17:31:45,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:45,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:31:45,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:46,784 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 17:31:46,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:31:46,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720282129] [2024-11-08 17:31:46,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720282129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:31:46,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:31:46,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:31:46,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802669223] [2024-11-08 17:31:46,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:31:46,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:31:46,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:31:46,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:31:46,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:31:48,687 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 165 [2024-11-08 17:31:48,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 343 transitions, 2104 flow. Second operand has 9 states, 9 states have (on average 137.77777777777777) internal successors, (1240), 9 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:48,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:31:48,690 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 165 [2024-11-08 17:31:48,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:31:50,633 INFO L124 PetriNetUnfolderBase]: 1128/4316 cut-off events. [2024-11-08 17:31:50,634 INFO L125 PetriNetUnfolderBase]: For 5707/5847 co-relation queries the response was YES. [2024-11-08 17:31:50,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11740 conditions, 4316 events. 1128/4316 cut-off events. For 5707/5847 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 33941 event pairs, 161 based on Foata normal form. 57/4343 useless extension candidates. Maximal degree in co-relation 11453. Up to 580 conditions per place. [2024-11-08 17:31:50,692 INFO L140 encePairwiseOnDemand]: 148/165 looper letters, 68 selfloop transitions, 15 changer transitions 9/406 dead transitions. [2024-11-08 17:31:50,692 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 406 transitions, 2414 flow [2024-11-08 17:31:50,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:31:50,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 17:31:50,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1321 transitions. [2024-11-08 17:31:50,698 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8895622895622896 [2024-11-08 17:31:50,698 INFO L175 Difference]: Start difference. First operand has 247 places, 343 transitions, 2104 flow. Second operand 9 states and 1321 transitions. [2024-11-08 17:31:50,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 406 transitions, 2414 flow [2024-11-08 17:31:50,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 406 transitions, 2332 flow, removed 41 selfloop flow, removed 0 redundant places. [2024-11-08 17:31:50,794 INFO L231 Difference]: Finished difference. Result has 262 places, 358 transitions, 2144 flow [2024-11-08 17:31:50,795 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=2022, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2144, PETRI_PLACES=262, PETRI_TRANSITIONS=358} [2024-11-08 17:31:50,796 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 100 predicate places. [2024-11-08 17:31:50,796 INFO L471 AbstractCegarLoop]: Abstraction has has 262 places, 358 transitions, 2144 flow [2024-11-08 17:31:50,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 137.77777777777777) internal successors, (1240), 9 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:50,798 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:31:50,799 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:31:50,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 17:31:50,799 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-08 17:31:50,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:31:50,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1123383983, now seen corresponding path program 2 times [2024-11-08 17:31:50,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:31:50,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679991561] [2024-11-08 17:31:50,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:50,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:31:50,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:51,802 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 17:31:51,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:31:51,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679991561] [2024-11-08 17:31:51,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679991561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:31:51,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:31:51,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:31:51,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266827231] [2024-11-08 17:31:51,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:31:51,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:31:51,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:31:51,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:31:51,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:31:53,848 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 165 [2024-11-08 17:31:53,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 358 transitions, 2144 flow. Second operand has 9 states, 9 states have (on average 137.77777777777777) internal successors, (1240), 9 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:53,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:31:53,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 165 [2024-11-08 17:31:53,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:31:57,188 INFO L124 PetriNetUnfolderBase]: 2124/7776 cut-off events. [2024-11-08 17:31:57,189 INFO L125 PetriNetUnfolderBase]: For 11185/11470 co-relation queries the response was YES. [2024-11-08 17:31:57,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22709 conditions, 7776 events. 2124/7776 cut-off events. For 11185/11470 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 69068 event pairs, 251 based on Foata normal form. 107/7819 useless extension candidates. Maximal degree in co-relation 22414. Up to 1204 conditions per place. [2024-11-08 17:31:57,312 INFO L140 encePairwiseOnDemand]: 150/165 looper letters, 113 selfloop transitions, 20 changer transitions 6/453 dead transitions. [2024-11-08 17:31:57,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 453 transitions, 2838 flow [2024-11-08 17:31:57,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:31:57,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 17:31:57,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1319 transitions. [2024-11-08 17:31:57,319 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8882154882154882 [2024-11-08 17:31:57,320 INFO L175 Difference]: Start difference. First operand has 262 places, 358 transitions, 2144 flow. Second operand 9 states and 1319 transitions. [2024-11-08 17:31:57,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 453 transitions, 2838 flow [2024-11-08 17:31:57,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 270 places, 453 transitions, 2838 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:31:57,428 INFO L231 Difference]: Finished difference. Result has 277 places, 375 transitions, 2326 flow [2024-11-08 17:31:57,429 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=2144, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2326, PETRI_PLACES=277, PETRI_TRANSITIONS=375} [2024-11-08 17:31:57,431 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 115 predicate places. [2024-11-08 17:31:57,431 INFO L471 AbstractCegarLoop]: Abstraction has has 277 places, 375 transitions, 2326 flow [2024-11-08 17:31:57,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 137.77777777777777) internal successors, (1240), 9 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:31:57,433 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:31:57,433 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:31:57,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 17:31:57,434 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-08 17:31:57,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:31:57,434 INFO L85 PathProgramCache]: Analyzing trace with hash -296464081, now seen corresponding path program 3 times [2024-11-08 17:31:57,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:31:57,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458577228] [2024-11-08 17:31:57,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:31:57,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:31:57,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:31:58,256 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 17:31:58,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:31:58,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458577228] [2024-11-08 17:31:58,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458577228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:31:58,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:31:58,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:31:58,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642431750] [2024-11-08 17:31:58,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:31:58,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:31:58,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:31:58,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:31:58,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:32:00,228 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 165 [2024-11-08 17:32:00,230 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 375 transitions, 2326 flow. Second operand has 9 states, 9 states have (on average 137.77777777777777) internal successors, (1240), 9 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:32:00,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:32:00,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 165 [2024-11-08 17:32:00,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:32:03,236 INFO L124 PetriNetUnfolderBase]: 2421/8799 cut-off events. [2024-11-08 17:32:03,237 INFO L125 PetriNetUnfolderBase]: For 14958/15397 co-relation queries the response was YES. [2024-11-08 17:32:03,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27069 conditions, 8799 events. 2421/8799 cut-off events. For 14958/15397 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 79606 event pairs, 290 based on Foata normal form. 94/8828 useless extension candidates. Maximal degree in co-relation 26766. Up to 1316 conditions per place. [2024-11-08 17:32:03,360 INFO L140 encePairwiseOnDemand]: 151/165 looper letters, 120 selfloop transitions, 22 changer transitions 6/462 dead transitions. [2024-11-08 17:32:03,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 462 transitions, 3138 flow [2024-11-08 17:32:03,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:32:03,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 17:32:03,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1322 transitions. [2024-11-08 17:32:03,365 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8902356902356903 [2024-11-08 17:32:03,365 INFO L175 Difference]: Start difference. First operand has 277 places, 375 transitions, 2326 flow. Second operand 9 states and 1322 transitions. [2024-11-08 17:32:03,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 462 transitions, 3138 flow [2024-11-08 17:32:03,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 462 transitions, 3092 flow, removed 23 selfloop flow, removed 0 redundant places. [2024-11-08 17:32:03,513 INFO L231 Difference]: Finished difference. Result has 290 places, 387 transitions, 2493 flow [2024-11-08 17:32:03,514 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=2310, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2493, PETRI_PLACES=290, PETRI_TRANSITIONS=387} [2024-11-08 17:32:03,515 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 128 predicate places. [2024-11-08 17:32:03,515 INFO L471 AbstractCegarLoop]: Abstraction has has 290 places, 387 transitions, 2493 flow [2024-11-08 17:32:03,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 137.77777777777777) internal successors, (1240), 9 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:32:03,516 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:32:03,517 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:32:03,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 17:32:03,517 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-08 17:32:03,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:32:03,518 INFO L85 PathProgramCache]: Analyzing trace with hash 312522455, now seen corresponding path program 4 times [2024-11-08 17:32:03,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:32:03,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285012660] [2024-11-08 17:32:03,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:32:03,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:32:03,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:32:04,470 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 17:32:04,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:32:04,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285012660] [2024-11-08 17:32:04,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285012660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:32:04,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:32:04,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:32:04,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794679418] [2024-11-08 17:32:04,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:32:04,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:32:04,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:32:04,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:32:04,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:32:06,406 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 165 [2024-11-08 17:32:06,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 387 transitions, 2493 flow. Second operand has 9 states, 9 states have (on average 137.77777777777777) internal successors, (1240), 9 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:32:06,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:32:06,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 165 [2024-11-08 17:32:06,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:32:09,380 INFO L124 PetriNetUnfolderBase]: 2718/9855 cut-off events. [2024-11-08 17:32:09,380 INFO L125 PetriNetUnfolderBase]: For 18699/19155 co-relation queries the response was YES. [2024-11-08 17:32:09,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31004 conditions, 9855 events. 2718/9855 cut-off events. For 18699/19155 co-relation queries the response was YES. Maximal size of possible extension queue 261. Compared 91438 event pairs, 300 based on Foata normal form. 108/9894 useless extension candidates. Maximal degree in co-relation 30695. Up to 1587 conditions per place. [2024-11-08 17:32:09,474 INFO L140 encePairwiseOnDemand]: 151/165 looper letters, 135 selfloop transitions, 27 changer transitions 4/480 dead transitions. [2024-11-08 17:32:09,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 480 transitions, 3464 flow [2024-11-08 17:32:09,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:32:09,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 17:32:09,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1322 transitions. [2024-11-08 17:32:09,478 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8902356902356903 [2024-11-08 17:32:09,478 INFO L175 Difference]: Start difference. First operand has 290 places, 387 transitions, 2493 flow. Second operand 9 states and 1322 transitions. [2024-11-08 17:32:09,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 480 transitions, 3464 flow [2024-11-08 17:32:09,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 480 transitions, 3385 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-08 17:32:09,631 INFO L231 Difference]: Finished difference. Result has 300 places, 399 transitions, 2669 flow [2024-11-08 17:32:09,632 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=2467, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=387, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2669, PETRI_PLACES=300, PETRI_TRANSITIONS=399} [2024-11-08 17:32:09,632 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 138 predicate places. [2024-11-08 17:32:09,632 INFO L471 AbstractCegarLoop]: Abstraction has has 300 places, 399 transitions, 2669 flow [2024-11-08 17:32:09,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 137.77777777777777) internal successors, (1240), 9 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:32:09,633 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:32:09,633 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:32:09,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 17:32:09,634 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-08 17:32:09,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:32:09,634 INFO L85 PathProgramCache]: Analyzing trace with hash 294885693, now seen corresponding path program 5 times [2024-11-08 17:32:09,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:32:09,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535786426] [2024-11-08 17:32:09,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:32:09,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:32:09,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:32:10,358 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 17:32:10,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:32:10,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535786426] [2024-11-08 17:32:10,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535786426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:32:10,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:32:10,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:32:10,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510863273] [2024-11-08 17:32:10,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:32:10,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:32:10,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:32:10,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:32:10,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:32:12,240 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 165 [2024-11-08 17:32:12,242 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 399 transitions, 2669 flow. Second operand has 9 states, 9 states have (on average 137.77777777777777) internal successors, (1240), 9 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:32:12,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:32:12,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 165 [2024-11-08 17:32:12,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:32:15,395 INFO L124 PetriNetUnfolderBase]: 3049/11013 cut-off events. [2024-11-08 17:32:15,396 INFO L125 PetriNetUnfolderBase]: For 23674/24279 co-relation queries the response was YES. [2024-11-08 17:32:15,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35427 conditions, 11013 events. 3049/11013 cut-off events. For 23674/24279 co-relation queries the response was YES. Maximal size of possible extension queue 278. Compared 104999 event pairs, 321 based on Foata normal form. 104/11032 useless extension candidates. Maximal degree in co-relation 35113. Up to 1709 conditions per place. [2024-11-08 17:32:15,682 INFO L140 encePairwiseOnDemand]: 151/165 looper letters, 136 selfloop transitions, 29 changer transitions 3/482 dead transitions. [2024-11-08 17:32:15,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 482 transitions, 3664 flow [2024-11-08 17:32:15,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:32:15,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 17:32:15,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1324 transitions. [2024-11-08 17:32:15,687 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8915824915824916 [2024-11-08 17:32:15,688 INFO L175 Difference]: Start difference. First operand has 300 places, 399 transitions, 2669 flow. Second operand 9 states and 1324 transitions. [2024-11-08 17:32:15,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 482 transitions, 3664 flow [2024-11-08 17:32:15,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 482 transitions, 3573 flow, removed 10 selfloop flow, removed 3 redundant places. [2024-11-08 17:32:15,897 INFO L231 Difference]: Finished difference. Result has 311 places, 414 transitions, 2907 flow [2024-11-08 17:32:15,898 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=2628, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=375, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2907, PETRI_PLACES=311, PETRI_TRANSITIONS=414} [2024-11-08 17:32:15,898 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 149 predicate places. [2024-11-08 17:32:15,899 INFO L471 AbstractCegarLoop]: Abstraction has has 311 places, 414 transitions, 2907 flow [2024-11-08 17:32:15,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 137.77777777777777) internal successors, (1240), 9 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:32:15,899 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:32:15,900 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:32:15,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 17:32:15,900 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-08 17:32:15,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:32:15,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1451140557, now seen corresponding path program 6 times [2024-11-08 17:32:15,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:32:15,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841998383] [2024-11-08 17:32:15,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:32:15,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:32:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:32:16,512 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 17:32:16,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:32:16,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841998383] [2024-11-08 17:32:16,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841998383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:32:16,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:32:16,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:32:16,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353127516] [2024-11-08 17:32:16,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:32:16,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:32:16,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:32:16,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:32:16,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:32:17,972 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 165 [2024-11-08 17:32:17,974 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 414 transitions, 2907 flow. Second operand has 9 states, 9 states have (on average 137.77777777777777) internal successors, (1240), 9 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:32:17,974 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:32:17,974 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 165 [2024-11-08 17:32:17,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:32:21,880 INFO L124 PetriNetUnfolderBase]: 3371/12170 cut-off events. [2024-11-08 17:32:21,881 INFO L125 PetriNetUnfolderBase]: For 29713/30333 co-relation queries the response was YES. [2024-11-08 17:32:21,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40035 conditions, 12170 events. 3371/12170 cut-off events. For 29713/30333 co-relation queries the response was YES. Maximal size of possible extension queue 345. Compared 119004 event pairs, 304 based on Foata normal form. 109/12183 useless extension candidates. Maximal degree in co-relation 39715. Up to 1963 conditions per place. [2024-11-08 17:32:21,999 INFO L140 encePairwiseOnDemand]: 151/165 looper letters, 152 selfloop transitions, 34 changer transitions 2/502 dead transitions. [2024-11-08 17:32:21,999 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 502 transitions, 4047 flow [2024-11-08 17:32:21,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:32:22,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 17:32:22,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1324 transitions. [2024-11-08 17:32:22,002 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8915824915824916 [2024-11-08 17:32:22,002 INFO L175 Difference]: Start difference. First operand has 311 places, 414 transitions, 2907 flow. Second operand 9 states and 1324 transitions. [2024-11-08 17:32:22,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 502 transitions, 4047 flow [2024-11-08 17:32:22,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 502 transitions, 3951 flow, removed 27 selfloop flow, removed 2 redundant places. [2024-11-08 17:32:22,256 INFO L231 Difference]: Finished difference. Result has 323 places, 429 transitions, 3150 flow [2024-11-08 17:32:22,258 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=2848, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3150, PETRI_PLACES=323, PETRI_TRANSITIONS=429} [2024-11-08 17:32:22,259 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 161 predicate places. [2024-11-08 17:32:22,259 INFO L471 AbstractCegarLoop]: Abstraction has has 323 places, 429 transitions, 3150 flow [2024-11-08 17:32:22,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 137.77777777777777) internal successors, (1240), 9 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:32:22,260 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:32:22,260 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:32:22,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 17:32:22,261 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-08 17:32:22,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:32:22,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1207282249, now seen corresponding path program 7 times [2024-11-08 17:32:22,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:32:22,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957190145] [2024-11-08 17:32:22,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:32:22,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:32:22,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:32:22,924 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 17:32:22,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:32:22,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957190145] [2024-11-08 17:32:22,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957190145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:32:22,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:32:22,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:32:22,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488160359] [2024-11-08 17:32:22,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:32:22,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:32:22,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:32:22,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:32:22,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:32:24,230 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 165 [2024-11-08 17:32:24,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 429 transitions, 3150 flow. Second operand has 9 states, 9 states have (on average 137.77777777777777) internal successors, (1240), 9 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:32:24,232 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:32:24,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 165 [2024-11-08 17:32:24,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:32:28,206 INFO L124 PetriNetUnfolderBase]: 3716/13397 cut-off events. [2024-11-08 17:32:28,206 INFO L125 PetriNetUnfolderBase]: For 38107/38807 co-relation queries the response was YES. [2024-11-08 17:32:28,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45271 conditions, 13397 events. 3716/13397 cut-off events. For 38107/38807 co-relation queries the response was YES. Maximal size of possible extension queue 412. Compared 134226 event pairs, 411 based on Foata normal form. 98/13387 useless extension candidates. Maximal degree in co-relation 44945. Up to 2114 conditions per place. [2024-11-08 17:32:28,334 INFO L140 encePairwiseOnDemand]: 151/165 looper letters, 151 selfloop transitions, 36 changer transitions 0/501 dead transitions. [2024-11-08 17:32:28,335 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 501 transitions, 4257 flow [2024-11-08 17:32:28,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:32:28,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 17:32:28,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1325 transitions. [2024-11-08 17:32:28,337 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8922558922558923 [2024-11-08 17:32:28,337 INFO L175 Difference]: Start difference. First operand has 323 places, 429 transitions, 3150 flow. Second operand 9 states and 1325 transitions. [2024-11-08 17:32:28,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 501 transitions, 4257 flow [2024-11-08 17:32:28,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 501 transitions, 4157 flow, removed 26 selfloop flow, removed 2 redundant places. [2024-11-08 17:32:28,611 INFO L231 Difference]: Finished difference. Result has 336 places, 448 transitions, 3500 flow [2024-11-08 17:32:28,612 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=3072, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3500, PETRI_PLACES=336, PETRI_TRANSITIONS=448} [2024-11-08 17:32:28,613 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 174 predicate places. [2024-11-08 17:32:28,613 INFO L471 AbstractCegarLoop]: Abstraction has has 336 places, 448 transitions, 3500 flow [2024-11-08 17:32:28,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 137.77777777777777) internal successors, (1240), 9 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:32:28,614 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:32:28,614 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:32:28,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 17:32:28,614 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-08 17:32:28,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:32:28,615 INFO L85 PathProgramCache]: Analyzing trace with hash -2135822665, now seen corresponding path program 8 times [2024-11-08 17:32:28,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:32:28,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674201209] [2024-11-08 17:32:28,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:32:28,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:32:28,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:32:29,094 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 17:32:29,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:32:29,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674201209] [2024-11-08 17:32:29,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674201209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:32:29,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:32:29,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:32:29,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499457386] [2024-11-08 17:32:29,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:32:29,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:32:29,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:32:29,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:32:29,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:32:29,841 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 165 [2024-11-08 17:32:29,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 448 transitions, 3500 flow. Second operand has 9 states, 9 states have (on average 137.77777777777777) internal successors, (1240), 9 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:32:29,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:32:29,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 165 [2024-11-08 17:32:29,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:32:34,243 INFO L124 PetriNetUnfolderBase]: 4310/15402 cut-off events. [2024-11-08 17:32:34,243 INFO L125 PetriNetUnfolderBase]: For 49398/50368 co-relation queries the response was YES. [2024-11-08 17:32:34,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53102 conditions, 15402 events. 4310/15402 cut-off events. For 49398/50368 co-relation queries the response was YES. Maximal size of possible extension queue 538. Compared 159892 event pairs, 429 based on Foata normal form. 129/15413 useless extension candidates. Maximal degree in co-relation 52769. Up to 2514 conditions per place. [2024-11-08 17:32:34,398 INFO L140 encePairwiseOnDemand]: 150/165 looper letters, 172 selfloop transitions, 45 changer transitions 0/531 dead transitions. [2024-11-08 17:32:34,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 344 places, 531 transitions, 4813 flow [2024-11-08 17:32:34,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:32:34,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 17:32:34,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1327 transitions. [2024-11-08 17:32:34,401 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8936026936026936 [2024-11-08 17:32:34,401 INFO L175 Difference]: Start difference. First operand has 336 places, 448 transitions, 3500 flow. Second operand 9 states and 1327 transitions. [2024-11-08 17:32:34,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 344 places, 531 transitions, 4813 flow [2024-11-08 17:32:34,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 531 transitions, 4709 flow, removed 52 selfloop flow, removed 0 redundant places. [2024-11-08 17:32:34,712 INFO L231 Difference]: Finished difference. Result has 351 places, 466 transitions, 3852 flow [2024-11-08 17:32:34,713 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=3396, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=448, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3852, PETRI_PLACES=351, PETRI_TRANSITIONS=466} [2024-11-08 17:32:34,713 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 189 predicate places. [2024-11-08 17:32:34,713 INFO L471 AbstractCegarLoop]: Abstraction has has 351 places, 466 transitions, 3852 flow [2024-11-08 17:32:34,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 137.77777777777777) internal successors, (1240), 9 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:32:34,714 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:32:34,714 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:32:34,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 17:32:34,714 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-08 17:32:34,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:32:34,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1588749805, now seen corresponding path program 9 times [2024-11-08 17:32:34,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:32:34,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011872792] [2024-11-08 17:32:34,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:32:34,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:32:34,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:32:35,389 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 17:32:35,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:32:35,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011872792] [2024-11-08 17:32:35,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011872792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:32:35,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:32:35,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:32:35,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057024313] [2024-11-08 17:32:35,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:32:35,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:32:35,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:32:35,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:32:35,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:32:36,093 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 165 [2024-11-08 17:32:36,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 466 transitions, 3852 flow. Second operand has 9 states, 9 states have (on average 137.77777777777777) internal successors, (1240), 9 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:32:36,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:32:36,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 165 [2024-11-08 17:32:36,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:32:41,043 INFO L124 PetriNetUnfolderBase]: 4900/17435 cut-off events. [2024-11-08 17:32:41,043 INFO L125 PetriNetUnfolderBase]: For 61325/62347 co-relation queries the response was YES. [2024-11-08 17:32:41,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61346 conditions, 17435 events. 4900/17435 cut-off events. For 61325/62347 co-relation queries the response was YES. Maximal size of possible extension queue 663. Compared 187304 event pairs, 481 based on Foata normal form. 143/17447 useless extension candidates. Maximal degree in co-relation 61005. Up to 2857 conditions per place. [2024-11-08 17:32:41,226 INFO L140 encePairwiseOnDemand]: 150/165 looper letters, 187 selfloop transitions, 46 changer transitions 0/547 dead transitions. [2024-11-08 17:32:41,226 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 547 transitions, 5120 flow [2024-11-08 17:32:41,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:32:41,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 17:32:41,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1327 transitions. [2024-11-08 17:32:41,229 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8936026936026936 [2024-11-08 17:32:41,229 INFO L175 Difference]: Start difference. First operand has 351 places, 466 transitions, 3852 flow. Second operand 9 states and 1327 transitions. [2024-11-08 17:32:41,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 547 transitions, 5120 flow [2024-11-08 17:32:41,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 547 transitions, 5034 flow, removed 43 selfloop flow, removed 0 redundant places. [2024-11-08 17:32:41,614 INFO L231 Difference]: Finished difference. Result has 365 places, 483 transitions, 4175 flow [2024-11-08 17:32:41,614 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=3766, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4175, PETRI_PLACES=365, PETRI_TRANSITIONS=483} [2024-11-08 17:32:41,615 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 203 predicate places. [2024-11-08 17:32:41,615 INFO L471 AbstractCegarLoop]: Abstraction has has 365 places, 483 transitions, 4175 flow [2024-11-08 17:32:41,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 137.77777777777777) internal successors, (1240), 9 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:32:41,615 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:32:41,616 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:32:41,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 17:32:41,616 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-08 17:32:41,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:32:41,617 INFO L85 PathProgramCache]: Analyzing trace with hash 800776165, now seen corresponding path program 10 times [2024-11-08 17:32:41,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:32:41,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482668794] [2024-11-08 17:32:41,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:32:41,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:32:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:32:42,061 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 17:32:42,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:32:42,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482668794] [2024-11-08 17:32:42,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482668794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:32:42,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:32:42,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:32:42,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403295210] [2024-11-08 17:32:42,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:32:42,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:32:42,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:32:42,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:32:42,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:32:43,233 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 165 [2024-11-08 17:32:43,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 365 places, 483 transitions, 4175 flow. Second operand has 9 states, 9 states have (on average 137.77777777777777) internal successors, (1240), 9 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:32:43,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:32:43,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 165 [2024-11-08 17:32:43,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:32:48,576 INFO L124 PetriNetUnfolderBase]: 5188/18372 cut-off events. [2024-11-08 17:32:48,576 INFO L125 PetriNetUnfolderBase]: For 69550/70667 co-relation queries the response was YES. [2024-11-08 17:32:48,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65542 conditions, 18372 events. 5188/18372 cut-off events. For 69550/70667 co-relation queries the response was YES. Maximal size of possible extension queue 726. Compared 200109 event pairs, 505 based on Foata normal form. 160/18395 useless extension candidates. Maximal degree in co-relation 65194. Up to 3039 conditions per place. [2024-11-08 17:32:48,774 INFO L140 encePairwiseOnDemand]: 149/165 looper letters, 186 selfloop transitions, 53 changer transitions 0/553 dead transitions. [2024-11-08 17:32:48,774 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 553 transitions, 5487 flow [2024-11-08 17:32:48,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:32:48,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 17:32:48,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1329 transitions. [2024-11-08 17:32:48,776 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8949494949494949 [2024-11-08 17:32:48,776 INFO L175 Difference]: Start difference. First operand has 365 places, 483 transitions, 4175 flow. Second operand 9 states and 1329 transitions. [2024-11-08 17:32:48,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 553 transitions, 5487 flow [2024-11-08 17:32:49,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 553 transitions, 5334 flow, removed 57 selfloop flow, removed 2 redundant places. [2024-11-08 17:32:49,216 INFO L231 Difference]: Finished difference. Result has 375 places, 497 transitions, 4454 flow [2024-11-08 17:32:49,216 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=4078, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=483, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4454, PETRI_PLACES=375, PETRI_TRANSITIONS=497} [2024-11-08 17:32:49,217 INFO L277 CegarLoopForPetriNet]: 162 programPoint places, 213 predicate places. [2024-11-08 17:32:49,217 INFO L471 AbstractCegarLoop]: Abstraction has has 375 places, 497 transitions, 4454 flow [2024-11-08 17:32:49,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 137.77777777777777) internal successors, (1240), 9 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:32:49,218 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:32:49,218 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:32:49,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 17:32:49,218 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-08 17:32:49,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:32:49,219 INFO L85 PathProgramCache]: Analyzing trace with hash -2003162509, now seen corresponding path program 11 times [2024-11-08 17:32:49,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:32:49,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438687658] [2024-11-08 17:32:49,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:32:49,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:32:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:32:49,921 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2024-11-08 17:32:49,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:32:49,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438687658] [2024-11-08 17:32:49,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438687658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:32:49,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:32:49,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:32:49,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968646161] [2024-11-08 17:32:49,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:32:49,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:32:49,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:32:49,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:32:49,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:32:50,700 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 165 [2024-11-08 17:32:50,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 497 transitions, 4454 flow. Second operand has 9 states, 9 states have (on average 137.77777777777777) internal successors, (1240), 9 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 17:32:50,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:32:50,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 165 [2024-11-08 17:32:50,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand