./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-word-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57ceefc-5c47-4cb5-8f07-09bded86e648/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57ceefc-5c47-4cb5-8f07-09bded86e648/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57ceefc-5c47-4cb5-8f07-09bded86e648/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57ceefc-5c47-4cb5-8f07-09bded86e648/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-word-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57ceefc-5c47-4cb5-8f07-09bded86e648/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57ceefc-5c47-4cb5-8f07-09bded86e648/bin/uautomizer-verify-4GaUIPS5ZU --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 bf81f7b3bd1ceac2bf46c7c37f69effc0af9de17b18c7565156301fb49a6164e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:15:38,099 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:15:38,189 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57ceefc-5c47-4cb5-8f07-09bded86e648/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:15:38,195 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:15:38,196 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:15:38,230 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:15:38,231 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:15:38,232 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:15:38,233 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:15:38,234 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:15:38,236 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:15:38,237 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:15:38,237 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:15:38,238 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:15:38,239 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:15:38,240 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:15:38,240 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:15:38,241 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:15:38,241 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:15:38,241 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:15:38,242 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:15:38,245 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:15:38,246 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:15:38,246 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:15:38,246 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:15:38,247 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:15:38,247 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:15:38,247 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:15:38,248 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:15:38,248 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:15:38,249 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:15:38,249 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:15:38,249 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:15:38,250 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:15:38,250 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:15:38,250 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:15:38,250 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:15:38,251 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:15:38,251 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:15:38,251 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:15:38,252 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:15:38,253 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_a57ceefc-5c47-4cb5-8f07-09bded86e648/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57ceefc-5c47-4cb5-8f07-09bded86e648/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf81f7b3bd1ceac2bf46c7c37f69effc0af9de17b18c7565156301fb49a6164e [2024-10-31 22:15:38,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:15:38,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:15:38,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:15:38,571 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:15:38,572 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:15:38,573 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57ceefc-5c47-4cb5-8f07-09bded86e648/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/weaver/chl-word-symm.wvr.c Unable to find full path for "g++" [2024-10-31 22:15:40,673 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:15:40,950 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:15:40,952 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57ceefc-5c47-4cb5-8f07-09bded86e648/sv-benchmarks/c/weaver/chl-word-symm.wvr.c [2024-10-31 22:15:40,965 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57ceefc-5c47-4cb5-8f07-09bded86e648/bin/uautomizer-verify-4GaUIPS5ZU/data/59a35ced0/cb4f922e19f741e7a0548ad3bbb92733/FLAG401e3abb4 [2024-10-31 22:15:40,991 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57ceefc-5c47-4cb5-8f07-09bded86e648/bin/uautomizer-verify-4GaUIPS5ZU/data/59a35ced0/cb4f922e19f741e7a0548ad3bbb92733 [2024-10-31 22:15:40,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:15:40,997 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:15:41,000 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:15:41,000 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:15:41,007 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:15:41,008 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:15:40" (1/1) ... [2024-10-31 22:15:41,010 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c9c9d12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:41, skipping insertion in model container [2024-10-31 22:15:41,012 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:15:40" (1/1) ... [2024-10-31 22:15:41,050 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:15:41,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:15:41,354 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:15:41,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:15:41,459 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:15:41,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:41 WrapperNode [2024-10-31 22:15:41,460 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:15:41,461 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:15:41,461 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:15:41,461 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:15:41,473 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:41" (1/1) ... [2024-10-31 22:15:41,485 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:41" (1/1) ... [2024-10-31 22:15:41,530 INFO L138 Inliner]: procedures = 23, calls = 26, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 191 [2024-10-31 22:15:41,531 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:15:41,531 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:15:41,531 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:15:41,532 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:15:41,544 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:41" (1/1) ... [2024-10-31 22:15:41,545 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:41" (1/1) ... [2024-10-31 22:15:41,559 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:41" (1/1) ... [2024-10-31 22:15:41,560 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:41" (1/1) ... [2024-10-31 22:15:41,595 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:41" (1/1) ... [2024-10-31 22:15:41,604 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:41" (1/1) ... [2024-10-31 22:15:41,610 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:41" (1/1) ... [2024-10-31 22:15:41,612 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:41" (1/1) ... [2024-10-31 22:15:41,619 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:15:41,624 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:15:41,624 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:15:41,624 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:15:41,625 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:41" (1/1) ... [2024-10-31 22:15:41,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:15:41,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57ceefc-5c47-4cb5-8f07-09bded86e648/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:41,672 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57ceefc-5c47-4cb5-8f07-09bded86e648/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:15:41,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57ceefc-5c47-4cb5-8f07-09bded86e648/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:15:41,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:15:41,712 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-31 22:15:41,712 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-31 22:15:41,713 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-31 22:15:41,713 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-31 22:15:41,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:15:41,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:15:41,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:15:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:15:41,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:15:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:15:41,716 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:15:41,900 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:15:41,904 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:15:42,737 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:15:42,738 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:15:42,786 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:15:42,788 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-31 22:15:42,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:15:42 BoogieIcfgContainer [2024-10-31 22:15:42,789 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:15:42,791 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:15:42,792 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:15:42,796 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:15:42,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:15:40" (1/3) ... [2024-10-31 22:15:42,797 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@452ee7da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:15:42, skipping insertion in model container [2024-10-31 22:15:42,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:41" (2/3) ... [2024-10-31 22:15:42,798 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@452ee7da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:15:42, skipping insertion in model container [2024-10-31 22:15:42,799 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:15:42" (3/3) ... [2024-10-31 22:15:42,800 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-symm.wvr.c [2024-10-31 22:15:42,820 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:15:42,821 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 54 error locations. [2024-10-31 22:15:42,821 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:15:42,990 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 22:15:43,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 456 places, 475 transitions, 964 flow [2024-10-31 22:15:43,454 INFO L124 PetriNetUnfolderBase]: 26/473 cut-off events. [2024-10-31 22:15:43,455 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:15:43,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 482 conditions, 473 events. 26/473 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1055 event pairs, 0 based on Foata normal form. 0/393 useless extension candidates. Maximal degree in co-relation 292. Up to 3 conditions per place. [2024-10-31 22:15:43,465 INFO L82 GeneralOperation]: Start removeDead. Operand has 456 places, 475 transitions, 964 flow [2024-10-31 22:15:43,482 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 436 places, 453 transitions, 918 flow [2024-10-31 22:15:43,505 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:15:43,513 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;@16347249, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:15:43,514 INFO L334 AbstractCegarLoop]: Starting to check reachability of 94 error locations. [2024-10-31 22:15:43,520 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:15:43,521 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2024-10-31 22:15:43,521 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:15:43,521 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:43,522 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] [2024-10-31 22:15:43,523 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:15:43,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:43,531 INFO L85 PathProgramCache]: Analyzing trace with hash 497602862, now seen corresponding path program 1 times [2024-10-31 22:15:43,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:43,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717298693] [2024-10-31 22:15:43,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:43,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:43,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:43,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:43,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:43,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717298693] [2024-10-31 22:15:43,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717298693] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:43,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:43,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:43,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799382885] [2024-10-31 22:15:43,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:43,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:43,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:43,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:43,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:43,862 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 448 out of 475 [2024-10-31 22:15:43,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 436 places, 453 transitions, 918 flow. Second operand has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:43,869 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:43,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 448 of 475 [2024-10-31 22:15:43,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:44,074 INFO L124 PetriNetUnfolderBase]: 37/782 cut-off events. [2024-10-31 22:15:44,074 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-10-31 22:15:44,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 827 conditions, 782 events. 37/782 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3399 event pairs, 8 based on Foata normal form. 15/650 useless extension candidates. Maximal degree in co-relation 591. Up to 28 conditions per place. [2024-10-31 22:15:44,086 INFO L140 encePairwiseOnDemand]: 462/475 looper letters, 11 selfloop transitions, 2 changer transitions 6/442 dead transitions. [2024-10-31 22:15:44,087 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 442 transitions, 922 flow [2024-10-31 22:15:44,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:44,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:44,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1368 transitions. [2024-10-31 22:15:44,111 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.96 [2024-10-31 22:15:44,114 INFO L175 Difference]: Start difference. First operand has 436 places, 453 transitions, 918 flow. Second operand 3 states and 1368 transitions. [2024-10-31 22:15:44,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 442 transitions, 922 flow [2024-10-31 22:15:44,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 433 places, 442 transitions, 914 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-31 22:15:44,133 INFO L231 Difference]: Finished difference. Result has 433 places, 436 transitions, 880 flow [2024-10-31 22:15:44,137 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=888, PETRI_DIFFERENCE_MINUEND_PLACES=431, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=440, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=880, PETRI_PLACES=433, PETRI_TRANSITIONS=436} [2024-10-31 22:15:44,168 INFO L277 CegarLoopForPetriNet]: 436 programPoint places, -3 predicate places. [2024-10-31 22:15:44,169 INFO L471 AbstractCegarLoop]: Abstraction has has 433 places, 436 transitions, 880 flow [2024-10-31 22:15:44,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:44,170 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:44,170 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] [2024-10-31 22:15:44,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:15:44,171 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:15:44,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:44,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1667234327, now seen corresponding path program 1 times [2024-10-31 22:15:44,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:44,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804455682] [2024-10-31 22:15:44,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:44,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:44,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:44,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:44,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804455682] [2024-10-31 22:15:44,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804455682] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:44,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:44,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:44,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705938472] [2024-10-31 22:15:44,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:44,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:44,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:44,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:44,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:44,336 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 448 out of 475 [2024-10-31 22:15:44,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 433 places, 436 transitions, 880 flow. Second operand has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:44,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:44,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 448 of 475 [2024-10-31 22:15:44,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:44,522 INFO L124 PetriNetUnfolderBase]: 37/766 cut-off events. [2024-10-31 22:15:44,523 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-31 22:15:44,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 804 conditions, 766 events. 37/766 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3344 event pairs, 8 based on Foata normal form. 0/631 useless extension candidates. Maximal degree in co-relation 772. Up to 28 conditions per place. [2024-10-31 22:15:44,533 INFO L140 encePairwiseOnDemand]: 472/475 looper letters, 11 selfloop transitions, 2 changer transitions 0/435 dead transitions. [2024-10-31 22:15:44,533 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 435 transitions, 904 flow [2024-10-31 22:15:44,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:44,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:44,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1358 transitions. [2024-10-31 22:15:44,537 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9529824561403509 [2024-10-31 22:15:44,537 INFO L175 Difference]: Start difference. First operand has 433 places, 436 transitions, 880 flow. Second operand 3 states and 1358 transitions. [2024-10-31 22:15:44,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 435 transitions, 904 flow [2024-10-31 22:15:44,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 435 transitions, 900 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:15:44,547 INFO L231 Difference]: Finished difference. Result has 426 places, 435 transitions, 878 flow [2024-10-31 22:15:44,548 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=874, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=433, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=878, PETRI_PLACES=426, PETRI_TRANSITIONS=435} [2024-10-31 22:15:44,549 INFO L277 CegarLoopForPetriNet]: 436 programPoint places, -10 predicate places. [2024-10-31 22:15:44,549 INFO L471 AbstractCegarLoop]: Abstraction has has 426 places, 435 transitions, 878 flow [2024-10-31 22:15:44,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:44,550 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:44,551 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:44,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:15:44,551 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:15:44,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:44,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1874444480, now seen corresponding path program 1 times [2024-10-31 22:15:44,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:44,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308924675] [2024-10-31 22:15:44,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:44,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:44,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:44,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:44,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:44,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308924675] [2024-10-31 22:15:44,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308924675] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:44,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:44,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:44,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331970958] [2024-10-31 22:15:44,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:44,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:44,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:44,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:44,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:44,662 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 447 out of 475 [2024-10-31 22:15:44,664 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 435 transitions, 878 flow. Second operand has 3 states, 3 states have (on average 448.3333333333333) internal successors, (1345), 3 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:44,664 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:44,664 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 447 of 475 [2024-10-31 22:15:44,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:44,847 INFO L124 PetriNetUnfolderBase]: 37/756 cut-off events. [2024-10-31 22:15:44,848 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2024-10-31 22:15:44,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 798 conditions, 756 events. 37/756 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3113 event pairs, 8 based on Foata normal form. 0/626 useless extension candidates. Maximal degree in co-relation 758. Up to 32 conditions per place. [2024-10-31 22:15:44,856 INFO L140 encePairwiseOnDemand]: 472/475 looper letters, 12 selfloop transitions, 2 changer transitions 0/434 dead transitions. [2024-10-31 22:15:44,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 434 transitions, 904 flow [2024-10-31 22:15:44,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:44,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:44,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1356 transitions. [2024-10-31 22:15:44,861 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9515789473684211 [2024-10-31 22:15:44,861 INFO L175 Difference]: Start difference. First operand has 426 places, 435 transitions, 878 flow. Second operand 3 states and 1356 transitions. [2024-10-31 22:15:44,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 434 transitions, 904 flow [2024-10-31 22:15:44,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 434 transitions, 900 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:15:44,870 INFO L231 Difference]: Finished difference. Result has 425 places, 434 transitions, 876 flow [2024-10-31 22:15:44,871 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=872, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=876, PETRI_PLACES=425, PETRI_TRANSITIONS=434} [2024-10-31 22:15:44,872 INFO L277 CegarLoopForPetriNet]: 436 programPoint places, -11 predicate places. [2024-10-31 22:15:44,873 INFO L471 AbstractCegarLoop]: Abstraction has has 425 places, 434 transitions, 876 flow [2024-10-31 22:15:44,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 448.3333333333333) internal successors, (1345), 3 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:44,875 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:44,875 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] [2024-10-31 22:15:44,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:15:44,876 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:15:44,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:44,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1310349700, now seen corresponding path program 1 times [2024-10-31 22:15:44,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:44,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455816576] [2024-10-31 22:15:44,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:44,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:44,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:44,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:44,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:44,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455816576] [2024-10-31 22:15:44,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455816576] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:44,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:44,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:44,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37392608] [2024-10-31 22:15:44,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:44,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:44,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:44,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:44,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:45,025 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 447 out of 475 [2024-10-31 22:15:45,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 434 transitions, 876 flow. Second operand has 3 states, 3 states have (on average 448.3333333333333) internal successors, (1345), 3 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:45,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:45,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 447 of 475 [2024-10-31 22:15:45,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:45,187 INFO L124 PetriNetUnfolderBase]: 36/761 cut-off events. [2024-10-31 22:15:45,187 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2024-10-31 22:15:45,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 801 conditions, 761 events. 36/761 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3165 event pairs, 8 based on Foata normal form. 0/628 useless extension candidates. Maximal degree in co-relation 753. Up to 30 conditions per place. [2024-10-31 22:15:45,196 INFO L140 encePairwiseOnDemand]: 472/475 looper letters, 12 selfloop transitions, 2 changer transitions 0/433 dead transitions. [2024-10-31 22:15:45,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 433 transitions, 902 flow [2024-10-31 22:15:45,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:45,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:45,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1356 transitions. [2024-10-31 22:15:45,201 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9515789473684211 [2024-10-31 22:15:45,202 INFO L175 Difference]: Start difference. First operand has 425 places, 434 transitions, 876 flow. Second operand 3 states and 1356 transitions. [2024-10-31 22:15:45,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 433 transitions, 902 flow [2024-10-31 22:15:45,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 433 transitions, 898 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:15:45,211 INFO L231 Difference]: Finished difference. Result has 424 places, 433 transitions, 874 flow [2024-10-31 22:15:45,212 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=870, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=433, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=874, PETRI_PLACES=424, PETRI_TRANSITIONS=433} [2024-10-31 22:15:45,212 INFO L277 CegarLoopForPetriNet]: 436 programPoint places, -12 predicate places. [2024-10-31 22:15:45,214 INFO L471 AbstractCegarLoop]: Abstraction has has 424 places, 433 transitions, 874 flow [2024-10-31 22:15:45,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 448.3333333333333) internal successors, (1345), 3 states have internal predecessors, (1345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:45,215 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:45,215 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] [2024-10-31 22:15:45,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:15:45,216 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:15:45,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:45,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1664001257, now seen corresponding path program 1 times [2024-10-31 22:15:45,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:45,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127272910] [2024-10-31 22:15:45,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:45,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:45,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:45,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:45,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:45,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127272910] [2024-10-31 22:15:45,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127272910] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:45,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:45,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:45,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691560689] [2024-10-31 22:15:45,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:45,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:45,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:45,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:45,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:45,327 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 443 out of 475 [2024-10-31 22:15:45,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 433 transitions, 874 flow. Second operand has 3 states, 3 states have (on average 444.0) internal successors, (1332), 3 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:45,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:45,329 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 443 of 475 [2024-10-31 22:15:45,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:45,580 INFO L124 PetriNetUnfolderBase]: 83/1184 cut-off events. [2024-10-31 22:15:45,580 INFO L125 PetriNetUnfolderBase]: For 11/12 co-relation queries the response was YES. [2024-10-31 22:15:45,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1277 conditions, 1184 events. 83/1184 cut-off events. For 11/12 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6783 event pairs, 24 based on Foata normal form. 0/979 useless extension candidates. Maximal degree in co-relation 1221. Up to 81 conditions per place. [2024-10-31 22:15:45,594 INFO L140 encePairwiseOnDemand]: 469/475 looper letters, 14 selfloop transitions, 1 changer transitions 0/428 dead transitions. [2024-10-31 22:15:45,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 428 transitions, 894 flow [2024-10-31 22:15:45,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:45,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:45,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1349 transitions. [2024-10-31 22:15:45,598 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9466666666666667 [2024-10-31 22:15:45,599 INFO L175 Difference]: Start difference. First operand has 424 places, 433 transitions, 874 flow. Second operand 3 states and 1349 transitions. [2024-10-31 22:15:45,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 428 transitions, 894 flow [2024-10-31 22:15:45,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 428 transitions, 890 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:15:45,608 INFO L231 Difference]: Finished difference. Result has 419 places, 428 transitions, 862 flow [2024-10-31 22:15:45,609 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=860, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=427, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=862, PETRI_PLACES=419, PETRI_TRANSITIONS=428} [2024-10-31 22:15:45,610 INFO L277 CegarLoopForPetriNet]: 436 programPoint places, -17 predicate places. [2024-10-31 22:15:45,610 INFO L471 AbstractCegarLoop]: Abstraction has has 419 places, 428 transitions, 862 flow [2024-10-31 22:15:45,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 444.0) internal successors, (1332), 3 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:45,612 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:45,612 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] [2024-10-31 22:15:45,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:15:45,613 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:15:45,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:45,614 INFO L85 PathProgramCache]: Analyzing trace with hash -521399676, now seen corresponding path program 1 times [2024-10-31 22:15:45,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:45,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804206021] [2024-10-31 22:15:45,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:45,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:45,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:45,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:45,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:45,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804206021] [2024-10-31 22:15:45,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804206021] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:45,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:45,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:45,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330931493] [2024-10-31 22:15:45,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:45,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:45,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:45,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:45,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:45,745 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 448 out of 475 [2024-10-31 22:15:45,747 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 428 transitions, 862 flow. Second operand has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:45,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:45,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 448 of 475 [2024-10-31 22:15:45,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:45,920 INFO L124 PetriNetUnfolderBase]: 32/663 cut-off events. [2024-10-31 22:15:45,921 INFO L125 PetriNetUnfolderBase]: For 3/4 co-relation queries the response was YES. [2024-10-31 22:15:45,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 700 conditions, 663 events. 32/663 cut-off events. For 3/4 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2468 event pairs, 8 based on Foata normal form. 0/559 useless extension candidates. Maximal degree in co-relation 644. Up to 28 conditions per place. [2024-10-31 22:15:45,931 INFO L140 encePairwiseOnDemand]: 472/475 looper letters, 11 selfloop transitions, 2 changer transitions 0/427 dead transitions. [2024-10-31 22:15:45,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 420 places, 427 transitions, 886 flow [2024-10-31 22:15:45,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:45,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:45,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1358 transitions. [2024-10-31 22:15:45,936 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9529824561403509 [2024-10-31 22:15:45,936 INFO L175 Difference]: Start difference. First operand has 419 places, 428 transitions, 862 flow. Second operand 3 states and 1358 transitions. [2024-10-31 22:15:45,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 420 places, 427 transitions, 886 flow [2024-10-31 22:15:45,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 427 transitions, 885 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:15:45,948 INFO L231 Difference]: Finished difference. Result has 419 places, 427 transitions, 863 flow [2024-10-31 22:15:45,949 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=859, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=863, PETRI_PLACES=419, PETRI_TRANSITIONS=427} [2024-10-31 22:15:45,950 INFO L277 CegarLoopForPetriNet]: 436 programPoint places, -17 predicate places. [2024-10-31 22:15:45,951 INFO L471 AbstractCegarLoop]: Abstraction has has 419 places, 427 transitions, 863 flow [2024-10-31 22:15:45,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:45,953 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:45,953 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] [2024-10-31 22:15:45,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:15:45,954 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:15:45,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:45,955 INFO L85 PathProgramCache]: Analyzing trace with hash 776827097, now seen corresponding path program 1 times [2024-10-31 22:15:45,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:45,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690471472] [2024-10-31 22:15:45,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:45,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:46,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:46,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:46,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:46,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690471472] [2024-10-31 22:15:46,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690471472] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:46,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:46,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:15:46,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568355769] [2024-10-31 22:15:46,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:46,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:15:46,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:46,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:15:46,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:15:47,300 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 399 out of 475 [2024-10-31 22:15:47,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 427 transitions, 863 flow. Second operand has 6 states, 6 states have (on average 400.5) internal successors, (2403), 6 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:47,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:47,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 399 of 475 [2024-10-31 22:15:47,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:47,816 INFO L124 PetriNetUnfolderBase]: 429/2641 cut-off events. [2024-10-31 22:15:47,816 INFO L125 PetriNetUnfolderBase]: For 46/47 co-relation queries the response was YES. [2024-10-31 22:15:47,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3365 conditions, 2641 events. 429/2641 cut-off events. For 46/47 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 19532 event pairs, 288 based on Foata normal form. 0/2197 useless extension candidates. Maximal degree in co-relation 3310. Up to 691 conditions per place. [2024-10-31 22:15:47,840 INFO L140 encePairwiseOnDemand]: 463/475 looper letters, 52 selfloop transitions, 10 changer transitions 0/425 dead transitions. [2024-10-31 22:15:47,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 425 transitions, 983 flow [2024-10-31 22:15:47,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:15:47,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:15:47,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2458 transitions. [2024-10-31 22:15:47,845 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8624561403508771 [2024-10-31 22:15:47,846 INFO L175 Difference]: Start difference. First operand has 419 places, 427 transitions, 863 flow. Second operand 6 states and 2458 transitions. [2024-10-31 22:15:47,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 425 transitions, 983 flow [2024-10-31 22:15:47,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 425 transitions, 979 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:15:47,854 INFO L231 Difference]: Finished difference. Result has 420 places, 425 transitions, 875 flow [2024-10-31 22:15:47,855 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=855, PETRI_DIFFERENCE_MINUEND_PLACES=415, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=415, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=875, PETRI_PLACES=420, PETRI_TRANSITIONS=425} [2024-10-31 22:15:47,855 INFO L277 CegarLoopForPetriNet]: 436 programPoint places, -16 predicate places. [2024-10-31 22:15:47,856 INFO L471 AbstractCegarLoop]: Abstraction has has 420 places, 425 transitions, 875 flow [2024-10-31 22:15:47,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 400.5) internal successors, (2403), 6 states have internal predecessors, (2403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:47,858 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:47,858 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] [2024-10-31 22:15:47,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:15:47,858 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:15:47,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:47,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1861974171, now seen corresponding path program 1 times [2024-10-31 22:15:47,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:47,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995285636] [2024-10-31 22:15:47,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:47,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:47,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:47,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:47,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:47,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995285636] [2024-10-31 22:15:47,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995285636] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:47,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:47,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:47,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451559127] [2024-10-31 22:15:47,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:47,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:47,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:47,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:47,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:47,933 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 443 out of 475 [2024-10-31 22:15:47,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 425 transitions, 875 flow. Second operand has 3 states, 3 states have (on average 444.0) internal successors, (1332), 3 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:47,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:47,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 443 of 475 [2024-10-31 22:15:47,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:48,134 INFO L124 PetriNetUnfolderBase]: 80/1050 cut-off events. [2024-10-31 22:15:48,134 INFO L125 PetriNetUnfolderBase]: For 14/15 co-relation queries the response was YES. [2024-10-31 22:15:48,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1153 conditions, 1050 events. 80/1050 cut-off events. For 14/15 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 5752 event pairs, 24 based on Foata normal form. 0/886 useless extension candidates. Maximal degree in co-relation 1120. Up to 82 conditions per place. [2024-10-31 22:15:48,145 INFO L140 encePairwiseOnDemand]: 469/475 looper letters, 14 selfloop transitions, 1 changer transitions 0/420 dead transitions. [2024-10-31 22:15:48,146 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 420 transitions, 895 flow [2024-10-31 22:15:48,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:48,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:48,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1349 transitions. [2024-10-31 22:15:48,149 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9466666666666667 [2024-10-31 22:15:48,150 INFO L175 Difference]: Start difference. First operand has 420 places, 425 transitions, 875 flow. Second operand 3 states and 1349 transitions. [2024-10-31 22:15:48,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 420 transitions, 895 flow [2024-10-31 22:15:48,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 420 transitions, 875 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:15:48,158 INFO L231 Difference]: Finished difference. Result has 412 places, 420 transitions, 847 flow [2024-10-31 22:15:48,159 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=845, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=419, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=847, PETRI_PLACES=412, PETRI_TRANSITIONS=420} [2024-10-31 22:15:48,161 INFO L277 CegarLoopForPetriNet]: 436 programPoint places, -24 predicate places. [2024-10-31 22:15:48,162 INFO L471 AbstractCegarLoop]: Abstraction has has 412 places, 420 transitions, 847 flow [2024-10-31 22:15:48,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 444.0) internal successors, (1332), 3 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:48,163 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:48,163 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:48,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:15:48,164 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:15:48,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:48,168 INFO L85 PathProgramCache]: Analyzing trace with hash -33180857, now seen corresponding path program 1 times [2024-10-31 22:15:48,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:48,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120085279] [2024-10-31 22:15:48,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:48,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:48,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:48,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:48,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:48,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120085279] [2024-10-31 22:15:48,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120085279] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:48,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:48,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:48,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668379739] [2024-10-31 22:15:48,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:48,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:48,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:48,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:48,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:48,265 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 448 out of 475 [2024-10-31 22:15:48,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 420 transitions, 847 flow. Second operand has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:48,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:48,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 448 of 475 [2024-10-31 22:15:48,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:48,377 INFO L124 PetriNetUnfolderBase]: 32/651 cut-off events. [2024-10-31 22:15:48,378 INFO L125 PetriNetUnfolderBase]: For 3/4 co-relation queries the response was YES. [2024-10-31 22:15:48,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 689 conditions, 651 events. 32/651 cut-off events. For 3/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2310 event pairs, 8 based on Foata normal form. 0/559 useless extension candidates. Maximal degree in co-relation 633. Up to 28 conditions per place. [2024-10-31 22:15:48,385 INFO L140 encePairwiseOnDemand]: 472/475 looper letters, 11 selfloop transitions, 2 changer transitions 0/419 dead transitions. [2024-10-31 22:15:48,385 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 419 transitions, 871 flow [2024-10-31 22:15:48,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:48,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:48,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1358 transitions. [2024-10-31 22:15:48,388 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9529824561403509 [2024-10-31 22:15:48,389 INFO L175 Difference]: Start difference. First operand has 412 places, 420 transitions, 847 flow. Second operand 3 states and 1358 transitions. [2024-10-31 22:15:48,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 419 transitions, 871 flow [2024-10-31 22:15:48,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 419 transitions, 870 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:15:48,397 INFO L231 Difference]: Finished difference. Result has 412 places, 419 transitions, 848 flow [2024-10-31 22:15:48,397 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=848, PETRI_PLACES=412, PETRI_TRANSITIONS=419} [2024-10-31 22:15:48,398 INFO L277 CegarLoopForPetriNet]: 436 programPoint places, -24 predicate places. [2024-10-31 22:15:48,398 INFO L471 AbstractCegarLoop]: Abstraction has has 412 places, 419 transitions, 848 flow [2024-10-31 22:15:48,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:48,399 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:48,400 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:48,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:15:48,400 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:15:48,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:48,401 INFO L85 PathProgramCache]: Analyzing trace with hash -407844173, now seen corresponding path program 1 times [2024-10-31 22:15:48,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:48,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351134712] [2024-10-31 22:15:48,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:48,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:48,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:48,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:48,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:48,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351134712] [2024-10-31 22:15:48,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351134712] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:48,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:48,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:48,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863014784] [2024-10-31 22:15:48,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:48,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:48,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:48,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:48,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:48,474 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 446 out of 475 [2024-10-31 22:15:48,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 419 transitions, 848 flow. Second operand has 3 states, 3 states have (on average 447.3333333333333) internal successors, (1342), 3 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:48,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:48,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 446 of 475 [2024-10-31 22:15:48,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:48,657 INFO L124 PetriNetUnfolderBase]: 73/1148 cut-off events. [2024-10-31 22:15:48,657 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 22:15:48,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1222 conditions, 1148 events. 73/1148 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6572 event pairs, 16 based on Foata normal form. 0/976 useless extension candidates. Maximal degree in co-relation 1166. Up to 58 conditions per place. [2024-10-31 22:15:48,667 INFO L140 encePairwiseOnDemand]: 469/475 looper letters, 14 selfloop transitions, 2 changer transitions 0/418 dead transitions. [2024-10-31 22:15:48,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 418 transitions, 879 flow [2024-10-31 22:15:48,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:48,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:48,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1358 transitions. [2024-10-31 22:15:48,670 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9529824561403509 [2024-10-31 22:15:48,670 INFO L175 Difference]: Start difference. First operand has 412 places, 419 transitions, 848 flow. Second operand 3 states and 1358 transitions. [2024-10-31 22:15:48,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 418 transitions, 879 flow [2024-10-31 22:15:48,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 408 places, 418 transitions, 875 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:15:48,679 INFO L231 Difference]: Finished difference. Result has 409 places, 417 transitions, 850 flow [2024-10-31 22:15:48,680 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=836, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=850, PETRI_PLACES=409, PETRI_TRANSITIONS=417} [2024-10-31 22:15:48,681 INFO L277 CegarLoopForPetriNet]: 436 programPoint places, -27 predicate places. [2024-10-31 22:15:48,681 INFO L471 AbstractCegarLoop]: Abstraction has has 409 places, 417 transitions, 850 flow [2024-10-31 22:15:48,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 447.3333333333333) internal successors, (1342), 3 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:48,682 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:48,683 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:48,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:15:48,683 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:15:48,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:48,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1096191371, now seen corresponding path program 1 times [2024-10-31 22:15:48,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:48,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688144915] [2024-10-31 22:15:48,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:48,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:48,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:48,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:48,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:48,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688144915] [2024-10-31 22:15:48,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688144915] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:48,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:48,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:48,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126371113] [2024-10-31 22:15:48,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:48,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:48,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:48,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:48,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:48,756 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 446 out of 475 [2024-10-31 22:15:48,757 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 417 transitions, 850 flow. Second operand has 3 states, 3 states have (on average 447.3333333333333) internal successors, (1342), 3 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:48,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:48,758 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 446 of 475 [2024-10-31 22:15:48,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:48,917 INFO L124 PetriNetUnfolderBase]: 70/1083 cut-off events. [2024-10-31 22:15:48,917 INFO L125 PetriNetUnfolderBase]: For 7/9 co-relation queries the response was YES. [2024-10-31 22:15:48,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1167 conditions, 1083 events. 70/1083 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 6241 event pairs, 16 based on Foata normal form. 0/939 useless extension candidates. Maximal degree in co-relation 1111. Up to 61 conditions per place. [2024-10-31 22:15:48,925 INFO L140 encePairwiseOnDemand]: 469/475 looper letters, 14 selfloop transitions, 2 changer transitions 0/416 dead transitions. [2024-10-31 22:15:48,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 416 transitions, 881 flow [2024-10-31 22:15:48,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:48,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:48,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1358 transitions. [2024-10-31 22:15:48,929 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9529824561403509 [2024-10-31 22:15:48,929 INFO L175 Difference]: Start difference. First operand has 409 places, 417 transitions, 850 flow. Second operand 3 states and 1358 transitions. [2024-10-31 22:15:48,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 416 transitions, 881 flow [2024-10-31 22:15:48,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 416 transitions, 881 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:15:48,937 INFO L231 Difference]: Finished difference. Result has 408 places, 415 transitions, 856 flow [2024-10-31 22:15:48,937 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=842, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=856, PETRI_PLACES=408, PETRI_TRANSITIONS=415} [2024-10-31 22:15:48,938 INFO L277 CegarLoopForPetriNet]: 436 programPoint places, -28 predicate places. [2024-10-31 22:15:48,938 INFO L471 AbstractCegarLoop]: Abstraction has has 408 places, 415 transitions, 856 flow [2024-10-31 22:15:48,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 447.3333333333333) internal successors, (1342), 3 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:48,939 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:48,940 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:48,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:15:48,940 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err18ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:15:48,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:48,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1346079127, now seen corresponding path program 1 times [2024-10-31 22:15:48,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:48,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717275812] [2024-10-31 22:15:48,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:48,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:48,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:49,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:49,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:49,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717275812] [2024-10-31 22:15:49,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717275812] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:49,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:49,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:49,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95598270] [2024-10-31 22:15:49,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:49,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:49,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:49,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:49,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:49,048 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 449 out of 475 [2024-10-31 22:15:49,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 415 transitions, 856 flow. Second operand has 3 states, 3 states have (on average 450.3333333333333) internal successors, (1351), 3 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:49,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:49,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 449 of 475 [2024-10-31 22:15:49,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:49,226 INFO L124 PetriNetUnfolderBase]: 47/946 cut-off events. [2024-10-31 22:15:49,226 INFO L125 PetriNetUnfolderBase]: For 2/6 co-relation queries the response was YES. [2024-10-31 22:15:49,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1004 conditions, 946 events. 47/946 cut-off events. For 2/6 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 4224 event pairs, 4 based on Foata normal form. 1/824 useless extension candidates. Maximal degree in co-relation 948. Up to 20 conditions per place. [2024-10-31 22:15:49,234 INFO L140 encePairwiseOnDemand]: 472/475 looper letters, 12 selfloop transitions, 2 changer transitions 0/415 dead transitions. [2024-10-31 22:15:49,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 415 transitions, 885 flow [2024-10-31 22:15:49,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:49,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:49,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1362 transitions. [2024-10-31 22:15:49,237 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9557894736842105 [2024-10-31 22:15:49,237 INFO L175 Difference]: Start difference. First operand has 408 places, 415 transitions, 856 flow. Second operand 3 states and 1362 transitions. [2024-10-31 22:15:49,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 415 transitions, 885 flow [2024-10-31 22:15:49,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 415 transitions, 885 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:15:49,245 INFO L231 Difference]: Finished difference. Result has 409 places, 414 transitions, 858 flow [2024-10-31 22:15:49,245 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=858, PETRI_PLACES=409, PETRI_TRANSITIONS=414} [2024-10-31 22:15:49,246 INFO L277 CegarLoopForPetriNet]: 436 programPoint places, -27 predicate places. [2024-10-31 22:15:49,246 INFO L471 AbstractCegarLoop]: Abstraction has has 409 places, 414 transitions, 858 flow [2024-10-31 22:15:49,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 450.3333333333333) internal successors, (1351), 3 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:49,247 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:49,247 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:49,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:15:49,248 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:15:49,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:49,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1206147859, now seen corresponding path program 1 times [2024-10-31 22:15:49,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:49,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152242890] [2024-10-31 22:15:49,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:49,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:49,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:49,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:49,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:49,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152242890] [2024-10-31 22:15:49,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152242890] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:49,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:49,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:15:49,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192136543] [2024-10-31 22:15:49,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:49,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:49,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:49,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:49,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:49,332 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 451 out of 475 [2024-10-31 22:15:49,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 414 transitions, 858 flow. Second operand has 3 states, 3 states have (on average 452.6666666666667) internal successors, (1358), 3 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:49,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:49,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 451 of 475 [2024-10-31 22:15:49,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:49,473 INFO L124 PetriNetUnfolderBase]: 44/817 cut-off events. [2024-10-31 22:15:49,473 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2024-10-31 22:15:49,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 883 conditions, 817 events. 44/817 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3839 event pairs, 6 based on Foata normal form. 0/714 useless extension candidates. Maximal degree in co-relation 826. Up to 25 conditions per place. [2024-10-31 22:15:49,481 INFO L140 encePairwiseOnDemand]: 471/475 looper letters, 11 selfloop transitions, 3 changer transitions 0/416 dead transitions. [2024-10-31 22:15:49,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 416 transitions, 891 flow [2024-10-31 22:15:49,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:49,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:49,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1368 transitions. [2024-10-31 22:15:49,484 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.96 [2024-10-31 22:15:49,484 INFO L175 Difference]: Start difference. First operand has 409 places, 414 transitions, 858 flow. Second operand 3 states and 1368 transitions. [2024-10-31 22:15:49,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 416 transitions, 891 flow [2024-10-31 22:15:49,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 416 transitions, 887 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:15:49,492 INFO L231 Difference]: Finished difference. Result has 411 places, 415 transitions, 872 flow [2024-10-31 22:15:49,493 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=872, PETRI_PLACES=411, PETRI_TRANSITIONS=415} [2024-10-31 22:15:49,493 INFO L277 CegarLoopForPetriNet]: 436 programPoint places, -25 predicate places. [2024-10-31 22:15:49,494 INFO L471 AbstractCegarLoop]: Abstraction has has 411 places, 415 transitions, 872 flow [2024-10-31 22:15:49,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 452.6666666666667) internal successors, (1358), 3 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:49,495 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:49,495 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:49,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 22:15:49,495 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:15:49,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:49,496 INFO L85 PathProgramCache]: Analyzing trace with hash 65142256, now seen corresponding path program 1 times [2024-10-31 22:15:49,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:49,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788765427] [2024-10-31 22:15:49,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:49,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:49,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:49,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:49,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:49,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788765427] [2024-10-31 22:15:49,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788765427] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:49,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:49,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:49,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147188611] [2024-10-31 22:15:49,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:49,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:49,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:49,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:49,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:49,571 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 446 out of 475 [2024-10-31 22:15:49,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 415 transitions, 872 flow. Second operand has 3 states, 3 states have (on average 447.3333333333333) internal successors, (1342), 3 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:49,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:49,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 446 of 475 [2024-10-31 22:15:49,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:49,859 INFO L124 PetriNetUnfolderBase]: 100/1449 cut-off events. [2024-10-31 22:15:49,860 INFO L125 PetriNetUnfolderBase]: For 23/27 co-relation queries the response was YES. [2024-10-31 22:15:49,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1602 conditions, 1449 events. 100/1449 cut-off events. For 23/27 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 8574 event pairs, 12 based on Foata normal form. 1/1264 useless extension candidates. Maximal degree in co-relation 1544. Up to 89 conditions per place. [2024-10-31 22:15:49,875 INFO L140 encePairwiseOnDemand]: 469/475 looper letters, 16 selfloop transitions, 2 changer transitions 0/416 dead transitions. [2024-10-31 22:15:49,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 416 transitions, 913 flow [2024-10-31 22:15:49,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:49,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:49,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1360 transitions. [2024-10-31 22:15:49,879 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9543859649122807 [2024-10-31 22:15:49,879 INFO L175 Difference]: Start difference. First operand has 411 places, 415 transitions, 872 flow. Second operand 3 states and 1360 transitions. [2024-10-31 22:15:49,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 416 transitions, 913 flow [2024-10-31 22:15:49,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 407 places, 416 transitions, 907 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:15:49,887 INFO L231 Difference]: Finished difference. Result has 408 places, 413 transitions, 872 flow [2024-10-31 22:15:49,888 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=858, PETRI_DIFFERENCE_MINUEND_PLACES=405, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=872, PETRI_PLACES=408, PETRI_TRANSITIONS=413} [2024-10-31 22:15:49,888 INFO L277 CegarLoopForPetriNet]: 436 programPoint places, -28 predicate places. [2024-10-31 22:15:49,888 INFO L471 AbstractCegarLoop]: Abstraction has has 408 places, 413 transitions, 872 flow [2024-10-31 22:15:49,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 447.3333333333333) internal successors, (1342), 3 states have internal predecessors, (1342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:49,890 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:49,890 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:49,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-31 22:15:49,890 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err18ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:15:49,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:49,891 INFO L85 PathProgramCache]: Analyzing trace with hash -877457411, now seen corresponding path program 1 times [2024-10-31 22:15:49,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:49,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150058632] [2024-10-31 22:15:49,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:49,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:49,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:49,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:49,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:49,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150058632] [2024-10-31 22:15:49,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150058632] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:49,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:49,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:49,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843702747] [2024-10-31 22:15:49,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:49,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:49,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:49,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:49,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:49,985 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 449 out of 475 [2024-10-31 22:15:49,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 413 transitions, 872 flow. Second operand has 3 states, 3 states have (on average 450.6666666666667) internal successors, (1352), 3 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:49,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:49,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 449 of 475 [2024-10-31 22:15:49,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:50,235 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1288] thread2EXIT-->L100: Formula: (and (= 0 v_thread2Thread1of1ForFork1_thidvar2_4) (= |v_ULTIMATE.start_main_~t2~0#1_6| v_thread2Thread1of1ForFork1_thidvar0_4) (= 0 v_thread2Thread1of1ForFork1_thidvar1_4)) InVars {thread2Thread1of1ForFork1_thidvar2=v_thread2Thread1of1ForFork1_thidvar2_4, thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_4, ULTIMATE.start_main_~t2~0#1=|v_ULTIMATE.start_main_~t2~0#1_6|, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_4} OutVars{thread2Thread1of1ForFork1_thidvar2=v_thread2Thread1of1ForFork1_thidvar2_4, thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_4, ULTIMATE.start_main_~t2~0#1=|v_ULTIMATE.start_main_~t2~0#1_6|, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_4} AuxVars[] AssignedVars[][279], [Black: 493#true, 485#(= |#race~n2~0| 0), 161#L100true, 495#(= |#race~count2~0| 0), 507#(= |#race~get1~0| 0), 509#true, Black: 502#(not |thread1Thread1of1ForFork0_#t~short1|), 491#(= |#race~count1~0| 0), Black: 505#true, Black: 489#true, 473#(= |#race~n1~0| 0)]) [2024-10-31 22:15:50,236 INFO L294 olderBase$Statistics]: this new event has 199 ancestors and is cut-off event [2024-10-31 22:15:50,236 INFO L297 olderBase$Statistics]: existing Event has 199 ancestors and is cut-off event [2024-10-31 22:15:50,236 INFO L297 olderBase$Statistics]: existing Event has 196 ancestors and is cut-off event [2024-10-31 22:15:50,236 INFO L297 olderBase$Statistics]: existing Event has 227 ancestors and is cut-off event [2024-10-31 22:15:50,269 INFO L124 PetriNetUnfolderBase]: 61/910 cut-off events. [2024-10-31 22:15:50,269 INFO L125 PetriNetUnfolderBase]: For 19/24 co-relation queries the response was YES. [2024-10-31 22:15:50,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1024 conditions, 910 events. 61/910 cut-off events. For 19/24 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 4406 event pairs, 6 based on Foata normal form. 0/801 useless extension candidates. Maximal degree in co-relation 966. Up to 52 conditions per place. [2024-10-31 22:15:50,278 INFO L140 encePairwiseOnDemand]: 472/475 looper letters, 12 selfloop transitions, 2 changer transitions 0/413 dead transitions. [2024-10-31 22:15:50,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 413 transitions, 901 flow [2024-10-31 22:15:50,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:50,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:50,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1362 transitions. [2024-10-31 22:15:50,283 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9557894736842105 [2024-10-31 22:15:50,283 INFO L175 Difference]: Start difference. First operand has 408 places, 413 transitions, 872 flow. Second operand 3 states and 1362 transitions. [2024-10-31 22:15:50,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 413 transitions, 901 flow [2024-10-31 22:15:50,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 413 transitions, 901 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:15:50,291 INFO L231 Difference]: Finished difference. Result has 409 places, 412 transitions, 874 flow [2024-10-31 22:15:50,292 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=870, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=874, PETRI_PLACES=409, PETRI_TRANSITIONS=412} [2024-10-31 22:15:50,292 INFO L277 CegarLoopForPetriNet]: 436 programPoint places, -27 predicate places. [2024-10-31 22:15:50,292 INFO L471 AbstractCegarLoop]: Abstraction has has 409 places, 412 transitions, 874 flow [2024-10-31 22:15:50,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 450.6666666666667) internal successors, (1352), 3 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:50,294 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:50,294 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:50,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-31 22:15:50,294 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:15:50,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:50,295 INFO L85 PathProgramCache]: Analyzing trace with hash 436223562, now seen corresponding path program 1 times [2024-10-31 22:15:50,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:50,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748545846] [2024-10-31 22:15:50,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:50,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:50,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:50,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:50,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:50,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748545846] [2024-10-31 22:15:50,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748545846] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:50,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:50,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:15:50,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527549215] [2024-10-31 22:15:50,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:50,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:50,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:50,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:50,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:50,378 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 451 out of 475 [2024-10-31 22:15:50,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 412 transitions, 874 flow. Second operand has 3 states, 3 states have (on average 453.0) internal successors, (1359), 3 states have internal predecessors, (1359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:50,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:50,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 451 of 475 [2024-10-31 22:15:50,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:50,578 INFO L124 PetriNetUnfolderBase]: 81/1037 cut-off events. [2024-10-31 22:15:50,578 INFO L125 PetriNetUnfolderBase]: For 36/38 co-relation queries the response was YES. [2024-10-31 22:15:50,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1216 conditions, 1037 events. 81/1037 cut-off events. For 36/38 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 5388 event pairs, 12 based on Foata normal form. 0/912 useless extension candidates. Maximal degree in co-relation 1194. Up to 86 conditions per place. [2024-10-31 22:15:50,591 INFO L140 encePairwiseOnDemand]: 471/475 looper letters, 11 selfloop transitions, 3 changer transitions 0/414 dead transitions. [2024-10-31 22:15:50,592 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 414 transitions, 907 flow [2024-10-31 22:15:50,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:50,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:50,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1368 transitions. [2024-10-31 22:15:50,595 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.96 [2024-10-31 22:15:50,595 INFO L175 Difference]: Start difference. First operand has 409 places, 412 transitions, 874 flow. Second operand 3 states and 1368 transitions. [2024-10-31 22:15:50,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 414 transitions, 907 flow [2024-10-31 22:15:50,598 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 414 transitions, 903 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:15:50,603 INFO L231 Difference]: Finished difference. Result has 411 places, 413 transitions, 888 flow [2024-10-31 22:15:50,604 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=870, PETRI_DIFFERENCE_MINUEND_PLACES=407, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=888, PETRI_PLACES=411, PETRI_TRANSITIONS=413} [2024-10-31 22:15:50,605 INFO L277 CegarLoopForPetriNet]: 436 programPoint places, -25 predicate places. [2024-10-31 22:15:50,606 INFO L471 AbstractCegarLoop]: Abstraction has has 411 places, 413 transitions, 888 flow [2024-10-31 22:15:50,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 453.0) internal successors, (1359), 3 states have internal predecessors, (1359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:50,607 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:50,607 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:50,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-31 22:15:50,608 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:15:50,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:50,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1409788000, now seen corresponding path program 1 times [2024-10-31 22:15:50,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:50,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168928052] [2024-10-31 22:15:50,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:50,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:50,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:50,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:50,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:50,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168928052] [2024-10-31 22:15:50,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168928052] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:50,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:50,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:50,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748437701] [2024-10-31 22:15:50,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:50,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:50,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:50,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:50,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:50,708 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 449 out of 475 [2024-10-31 22:15:50,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 413 transitions, 888 flow. Second operand has 3 states, 3 states have (on average 450.3333333333333) internal successors, (1351), 3 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:50,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:50,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 449 of 475 [2024-10-31 22:15:50,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:50,947 INFO L124 PetriNetUnfolderBase]: 75/1317 cut-off events. [2024-10-31 22:15:50,947 INFO L125 PetriNetUnfolderBase]: For 31/35 co-relation queries the response was YES. [2024-10-31 22:15:50,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1531 conditions, 1317 events. 75/1317 cut-off events. For 31/35 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 7233 event pairs, 4 based on Foata normal form. 0/1187 useless extension candidates. Maximal degree in co-relation 1471. Up to 36 conditions per place. [2024-10-31 22:15:50,958 INFO L140 encePairwiseOnDemand]: 472/475 looper letters, 12 selfloop transitions, 2 changer transitions 0/413 dead transitions. [2024-10-31 22:15:50,959 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 413 transitions, 917 flow [2024-10-31 22:15:50,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:50,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:50,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1362 transitions. [2024-10-31 22:15:50,962 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9557894736842105 [2024-10-31 22:15:50,962 INFO L175 Difference]: Start difference. First operand has 411 places, 413 transitions, 888 flow. Second operand 3 states and 1362 transitions. [2024-10-31 22:15:50,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 413 transitions, 917 flow [2024-10-31 22:15:50,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 413 transitions, 911 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:15:50,973 INFO L231 Difference]: Finished difference. Result has 410 places, 412 transitions, 884 flow [2024-10-31 22:15:50,974 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=880, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=884, PETRI_PLACES=410, PETRI_TRANSITIONS=412} [2024-10-31 22:15:50,975 INFO L277 CegarLoopForPetriNet]: 436 programPoint places, -26 predicate places. [2024-10-31 22:15:50,975 INFO L471 AbstractCegarLoop]: Abstraction has has 410 places, 412 transitions, 884 flow [2024-10-31 22:15:50,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 450.3333333333333) internal successors, (1351), 3 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:50,976 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:50,976 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:50,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-31 22:15:50,976 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:15:50,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:50,977 INFO L85 PathProgramCache]: Analyzing trace with hash -745107978, now seen corresponding path program 1 times [2024-10-31 22:15:50,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:50,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596049922] [2024-10-31 22:15:50,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:50,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:51,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:51,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:51,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:51,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596049922] [2024-10-31 22:15:51,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596049922] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:51,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:51,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 22:15:51,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130127079] [2024-10-31 22:15:51,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:51,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:15:51,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:51,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:15:51,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:15:51,799 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 428 out of 475 [2024-10-31 22:15:51,803 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 410 places, 412 transitions, 884 flow. Second operand has 8 states, 8 states have (on average 431.125) internal successors, (3449), 8 states have internal predecessors, (3449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:51,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:51,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 428 of 475 [2024-10-31 22:15:51,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:52,319 INFO L124 PetriNetUnfolderBase]: 126/2072 cut-off events. [2024-10-31 22:15:52,319 INFO L125 PetriNetUnfolderBase]: For 10/26 co-relation queries the response was YES. [2024-10-31 22:15:52,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2442 conditions, 2072 events. 126/2072 cut-off events. For 10/26 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 14236 event pairs, 17 based on Foata normal form. 6/1858 useless extension candidates. Maximal degree in co-relation 2404. Up to 72 conditions per place. [2024-10-31 22:15:52,339 INFO L140 encePairwiseOnDemand]: 458/475 looper letters, 44 selfloop transitions, 19 changer transitions 0/439 dead transitions. [2024-10-31 22:15:52,339 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 439 transitions, 1077 flow [2024-10-31 22:15:52,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-31 22:15:52,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-31 22:15:52,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 5200 transitions. [2024-10-31 22:15:52,348 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9122807017543859 [2024-10-31 22:15:52,348 INFO L175 Difference]: Start difference. First operand has 410 places, 412 transitions, 884 flow. Second operand 12 states and 5200 transitions. [2024-10-31 22:15:52,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 439 transitions, 1077 flow [2024-10-31 22:15:52,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 439 transitions, 1073 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:15:52,357 INFO L231 Difference]: Finished difference. Result has 425 places, 422 transitions, 981 flow [2024-10-31 22:15:52,358 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=880, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=981, PETRI_PLACES=425, PETRI_TRANSITIONS=422} [2024-10-31 22:15:52,358 INFO L277 CegarLoopForPetriNet]: 436 programPoint places, -11 predicate places. [2024-10-31 22:15:52,358 INFO L471 AbstractCegarLoop]: Abstraction has has 425 places, 422 transitions, 981 flow [2024-10-31 22:15:52,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 431.125) internal successors, (3449), 8 states have internal predecessors, (3449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:52,360 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:52,360 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:52,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-31 22:15:52,361 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:15:52,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:52,361 INFO L85 PathProgramCache]: Analyzing trace with hash -315178556, now seen corresponding path program 1 times [2024-10-31 22:15:52,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:52,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294107513] [2024-10-31 22:15:52,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:52,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:52,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:52,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:52,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:52,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294107513] [2024-10-31 22:15:52,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294107513] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:52,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:52,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:52,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428840492] [2024-10-31 22:15:52,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:52,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:52,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:52,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:52,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:52,438 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 446 out of 475 [2024-10-31 22:15:52,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 422 transitions, 981 flow. Second operand has 3 states, 3 states have (on average 447.6666666666667) internal successors, (1343), 3 states have internal predecessors, (1343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:52,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:52,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 446 of 475 [2024-10-31 22:15:52,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:52,921 INFO L124 PetriNetUnfolderBase]: 147/2144 cut-off events. [2024-10-31 22:15:52,921 INFO L125 PetriNetUnfolderBase]: For 55/59 co-relation queries the response was YES. [2024-10-31 22:15:52,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2580 conditions, 2144 events. 147/2144 cut-off events. For 55/59 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 14666 event pairs, 12 based on Foata normal form. 0/1947 useless extension candidates. Maximal degree in co-relation 2511. Up to 130 conditions per place. [2024-10-31 22:15:52,944 INFO L140 encePairwiseOnDemand]: 469/475 looper letters, 16 selfloop transitions, 2 changer transitions 0/423 dead transitions. [2024-10-31 22:15:52,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 423 transitions, 1022 flow [2024-10-31 22:15:52,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:52,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:52,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1360 transitions. [2024-10-31 22:15:52,948 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9543859649122807 [2024-10-31 22:15:52,948 INFO L175 Difference]: Start difference. First operand has 425 places, 422 transitions, 981 flow. Second operand 3 states and 1360 transitions. [2024-10-31 22:15:52,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 423 transitions, 1022 flow [2024-10-31 22:15:52,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 423 transitions, 1022 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:15:52,957 INFO L231 Difference]: Finished difference. Result has 424 places, 420 transitions, 987 flow [2024-10-31 22:15:52,957 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=973, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=418, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=987, PETRI_PLACES=424, PETRI_TRANSITIONS=420} [2024-10-31 22:15:52,958 INFO L277 CegarLoopForPetriNet]: 436 programPoint places, -12 predicate places. [2024-10-31 22:15:52,958 INFO L471 AbstractCegarLoop]: Abstraction has has 424 places, 420 transitions, 987 flow [2024-10-31 22:15:52,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 447.6666666666667) internal successors, (1343), 3 states have internal predecessors, (1343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:52,959 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:52,959 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:52,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-31 22:15:52,959 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:15:52,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:52,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1348836669, now seen corresponding path program 1 times [2024-10-31 22:15:52,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:52,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467442368] [2024-10-31 22:15:52,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:52,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:52,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:53,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:53,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:53,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467442368] [2024-10-31 22:15:53,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467442368] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:53,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:53,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:53,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559656579] [2024-10-31 22:15:53,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:53,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:53,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:53,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:53,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:53,058 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 449 out of 475 [2024-10-31 22:15:53,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 420 transitions, 987 flow. Second operand has 3 states, 3 states have (on average 450.6666666666667) internal successors, (1352), 3 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:53,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:53,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 449 of 475 [2024-10-31 22:15:53,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:53,406 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1288] thread2EXIT-->L100: Formula: (and (= 0 v_thread2Thread1of1ForFork1_thidvar2_4) (= |v_ULTIMATE.start_main_~t2~0#1_6| v_thread2Thread1of1ForFork1_thidvar0_4) (= 0 v_thread2Thread1of1ForFork1_thidvar1_4)) InVars {thread2Thread1of1ForFork1_thidvar2=v_thread2Thread1of1ForFork1_thidvar2_4, thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_4, ULTIMATE.start_main_~t2~0#1=|v_ULTIMATE.start_main_~t2~0#1_6|, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_4} OutVars{thread2Thread1of1ForFork1_thidvar2=v_thread2Thread1of1ForFork1_thidvar2_4, thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_4, ULTIMATE.start_main_~t2~0#1=|v_ULTIMATE.start_main_~t2~0#1_6|, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_4} AuxVars[] AssignedVars[][264], [Black: 531#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|)), 485#(= |#race~n2~0| 0), Black: 514#(not |thread2Thread1of1ForFork1_#t~short10|), 161#L100true, Black: 546#true, 491#(= |#race~count1~0| 0), Black: 489#true, 548#(= |#race~get2~0| 0), 550#true, 473#(= |#race~n1~0| 0), Black: 493#true, 495#(= |#race~count2~0| 0), 507#(= |#race~get1~0| 0), Black: 502#(not |thread1Thread1of1ForFork0_#t~short1|), Black: 505#true, Black: 526#(and (<= ~n1~0 0) (= thread1Thread1of1ForFork0_~i~0 0)), Black: 533#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= ~n1~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|)), Black: 525#(<= ~n1~0 0), 520#true, Black: 539#(and (<= ~n1~0 0) (= thread1Thread1of1ForFork0_~i~0 0) (not |thread1Thread1of1ForFork0_#t~short1|))]) [2024-10-31 22:15:53,406 INFO L294 olderBase$Statistics]: this new event has 245 ancestors and is cut-off event [2024-10-31 22:15:53,407 INFO L297 olderBase$Statistics]: existing Event has 214 ancestors and is cut-off event [2024-10-31 22:15:53,407 INFO L297 olderBase$Statistics]: existing Event has 214 ancestors and is cut-off event [2024-10-31 22:15:53,407 INFO L297 olderBase$Statistics]: existing Event has 214 ancestors and is cut-off event [2024-10-31 22:15:53,417 INFO L124 PetriNetUnfolderBase]: 114/1636 cut-off events. [2024-10-31 22:15:53,417 INFO L125 PetriNetUnfolderBase]: For 56/63 co-relation queries the response was YES. [2024-10-31 22:15:53,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2022 conditions, 1636 events. 114/1636 cut-off events. For 56/63 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 10084 event pairs, 10 based on Foata normal form. 0/1494 useless extension candidates. Maximal degree in co-relation 1952. Up to 96 conditions per place. [2024-10-31 22:15:53,432 INFO L140 encePairwiseOnDemand]: 472/475 looper letters, 12 selfloop transitions, 2 changer transitions 0/420 dead transitions. [2024-10-31 22:15:53,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 420 transitions, 1016 flow [2024-10-31 22:15:53,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:53,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:53,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1362 transitions. [2024-10-31 22:15:53,436 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9557894736842105 [2024-10-31 22:15:53,436 INFO L175 Difference]: Start difference. First operand has 424 places, 420 transitions, 987 flow. Second operand 3 states and 1362 transitions. [2024-10-31 22:15:53,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 420 transitions, 1016 flow [2024-10-31 22:15:53,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 420 transitions, 1016 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:15:53,444 INFO L231 Difference]: Finished difference. Result has 425 places, 419 transitions, 989 flow [2024-10-31 22:15:53,445 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=985, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=989, PETRI_PLACES=425, PETRI_TRANSITIONS=419} [2024-10-31 22:15:53,446 INFO L277 CegarLoopForPetriNet]: 436 programPoint places, -11 predicate places. [2024-10-31 22:15:53,446 INFO L471 AbstractCegarLoop]: Abstraction has has 425 places, 419 transitions, 989 flow [2024-10-31 22:15:53,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 450.6666666666667) internal successors, (1352), 3 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:53,447 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:53,447 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:53,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-31 22:15:53,447 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:15:53,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:53,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1660368170, now seen corresponding path program 1 times [2024-10-31 22:15:53,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:53,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351527787] [2024-10-31 22:15:53,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:53,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:53,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:53,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:53,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:53,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351527787] [2024-10-31 22:15:53,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351527787] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:53,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:53,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 22:15:53,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100432086] [2024-10-31 22:15:53,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:53,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:15:53,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:53,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:15:53,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:15:54,102 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 428 out of 475 [2024-10-31 22:15:54,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 419 transitions, 989 flow. Second operand has 8 states, 8 states have (on average 431.25) internal successors, (3450), 8 states have internal predecessors, (3450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:54,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:54,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 428 of 475 [2024-10-31 22:15:54,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:54,525 INFO L124 PetriNetUnfolderBase]: 123/1434 cut-off events. [2024-10-31 22:15:54,526 INFO L125 PetriNetUnfolderBase]: For 83/86 co-relation queries the response was YES. [2024-10-31 22:15:54,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1911 conditions, 1434 events. 123/1434 cut-off events. For 83/86 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 8374 event pairs, 18 based on Foata normal form. 0/1313 useless extension candidates. Maximal degree in co-relation 1838. Up to 124 conditions per place. [2024-10-31 22:15:54,538 INFO L140 encePairwiseOnDemand]: 458/475 looper letters, 46 selfloop transitions, 20 changer transitions 0/444 dead transitions. [2024-10-31 22:15:54,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 436 places, 444 transitions, 1186 flow [2024-10-31 22:15:54,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-31 22:15:54,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-31 22:15:54,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 5202 transitions. [2024-10-31 22:15:54,548 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9126315789473685 [2024-10-31 22:15:54,548 INFO L175 Difference]: Start difference. First operand has 425 places, 419 transitions, 989 flow. Second operand 12 states and 5202 transitions. [2024-10-31 22:15:54,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 436 places, 444 transitions, 1186 flow [2024-10-31 22:15:54,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 444 transitions, 1182 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:15:54,557 INFO L231 Difference]: Finished difference. Result has 438 places, 425 transitions, 1073 flow [2024-10-31 22:15:54,558 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=985, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1073, PETRI_PLACES=438, PETRI_TRANSITIONS=425} [2024-10-31 22:15:54,558 INFO L277 CegarLoopForPetriNet]: 436 programPoint places, 2 predicate places. [2024-10-31 22:15:54,558 INFO L471 AbstractCegarLoop]: Abstraction has has 438 places, 425 transitions, 1073 flow [2024-10-31 22:15:54,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 431.25) internal successors, (3450), 8 states have internal predecessors, (3450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:54,560 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:54,560 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:54,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-31 22:15:54,561 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:15:54,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:54,561 INFO L85 PathProgramCache]: Analyzing trace with hash -942378442, now seen corresponding path program 1 times [2024-10-31 22:15:54,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:54,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648526467] [2024-10-31 22:15:54,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:54,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:54,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:15:54,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:54,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648526467] [2024-10-31 22:15:54,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648526467] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:54,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:54,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 22:15:54,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256093657] [2024-10-31 22:15:54,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:54,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:15:54,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:54,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:15:54,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:15:55,476 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 428 out of 475 [2024-10-31 22:15:55,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 425 transitions, 1073 flow. Second operand has 8 states, 8 states have (on average 431.25) internal successors, (3450), 8 states have internal predecessors, (3450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:55,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:55,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 428 of 475 [2024-10-31 22:15:55,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:56,158 INFO L124 PetriNetUnfolderBase]: 189/2781 cut-off events. [2024-10-31 22:15:56,158 INFO L125 PetriNetUnfolderBase]: For 255/284 co-relation queries the response was YES. [2024-10-31 22:15:56,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3751 conditions, 2781 events. 189/2781 cut-off events. For 255/284 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 20630 event pairs, 28 based on Foata normal form. 8/2596 useless extension candidates. Maximal degree in co-relation 3671. Up to 129 conditions per place. [2024-10-31 22:15:56,189 INFO L140 encePairwiseOnDemand]: 459/475 looper letters, 50 selfloop transitions, 21 changer transitions 0/450 dead transitions. [2024-10-31 22:15:56,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 448 places, 450 transitions, 1318 flow [2024-10-31 22:15:56,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-31 22:15:56,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-31 22:15:56,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4763 transitions. [2024-10-31 22:15:56,198 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.911578947368421 [2024-10-31 22:15:56,198 INFO L175 Difference]: Start difference. First operand has 438 places, 425 transitions, 1073 flow. Second operand 11 states and 4763 transitions. [2024-10-31 22:15:56,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 448 places, 450 transitions, 1318 flow [2024-10-31 22:15:56,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 442 places, 450 transitions, 1301 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-31 22:15:56,211 INFO L231 Difference]: Finished difference. Result has 447 places, 439 transitions, 1210 flow [2024-10-31 22:15:56,211 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=1056, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1210, PETRI_PLACES=447, PETRI_TRANSITIONS=439} [2024-10-31 22:15:56,212 INFO L277 CegarLoopForPetriNet]: 436 programPoint places, 11 predicate places. [2024-10-31 22:15:56,212 INFO L471 AbstractCegarLoop]: Abstraction has has 447 places, 439 transitions, 1210 flow [2024-10-31 22:15:56,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 431.25) internal successors, (3450), 8 states have internal predecessors, (3450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:56,214 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:56,214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:56,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-31 22:15:56,215 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:15:56,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:56,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1144460950, now seen corresponding path program 1 times [2024-10-31 22:15:56,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:56,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928629351] [2024-10-31 22:15:56,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:56,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:56,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:56,469 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:15:56,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:56,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928629351] [2024-10-31 22:15:56,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928629351] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:56,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:56,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 22:15:56,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385373388] [2024-10-31 22:15:56,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:56,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:15:56,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:56,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:15:56,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:15:57,064 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 428 out of 475 [2024-10-31 22:15:57,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 439 transitions, 1210 flow. Second operand has 8 states, 8 states have (on average 431.375) internal successors, (3451), 8 states have internal predecessors, (3451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:57,079 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:57,079 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 428 of 475 [2024-10-31 22:15:57,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:57,724 INFO L124 PetriNetUnfolderBase]: 162/1951 cut-off events. [2024-10-31 22:15:57,725 INFO L125 PetriNetUnfolderBase]: For 329/334 co-relation queries the response was YES. [2024-10-31 22:15:57,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2821 conditions, 1951 events. 162/1951 cut-off events. For 329/334 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 12759 event pairs, 25 based on Foata normal form. 8/1815 useless extension candidates. Maximal degree in co-relation 2732. Up to 164 conditions per place. [2024-10-31 22:15:57,750 INFO L140 encePairwiseOnDemand]: 458/475 looper letters, 44 selfloop transitions, 25 changer transitions 0/456 dead transitions. [2024-10-31 22:15:57,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 456 transitions, 1425 flow [2024-10-31 22:15:57,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-31 22:15:57,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-31 22:15:57,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 5191 transitions. [2024-10-31 22:15:57,761 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9107017543859649 [2024-10-31 22:15:57,761 INFO L175 Difference]: Start difference. First operand has 447 places, 439 transitions, 1210 flow. Second operand 12 states and 5191 transitions. [2024-10-31 22:15:57,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 456 transitions, 1425 flow [2024-10-31 22:15:57,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 456 transitions, 1421 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:15:57,773 INFO L231 Difference]: Finished difference. Result has 461 places, 448 transitions, 1351 flow [2024-10-31 22:15:57,774 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=1206, PETRI_DIFFERENCE_MINUEND_PLACES=446, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=439, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1351, PETRI_PLACES=461, PETRI_TRANSITIONS=448} [2024-10-31 22:15:57,774 INFO L277 CegarLoopForPetriNet]: 436 programPoint places, 25 predicate places. [2024-10-31 22:15:57,775 INFO L471 AbstractCegarLoop]: Abstraction has has 461 places, 448 transitions, 1351 flow [2024-10-31 22:15:57,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 431.375) internal successors, (3451), 8 states have internal predecessors, (3451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:57,776 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:57,777 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:57,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-31 22:15:57,777 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:15:57,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:57,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1196552277, now seen corresponding path program 1 times [2024-10-31 22:15:57,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:57,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447425727] [2024-10-31 22:15:57,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:57,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:57,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:57,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:57,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:57,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447425727] [2024-10-31 22:15:57,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447425727] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:57,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:57,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:15:57,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6988405] [2024-10-31 22:15:57,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:57,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:57,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:57,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:57,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:57,862 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 451 out of 475 [2024-10-31 22:15:57,863 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 461 places, 448 transitions, 1351 flow. Second operand has 3 states, 3 states have (on average 454.3333333333333) internal successors, (1363), 3 states have internal predecessors, (1363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:57,863 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:57,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 451 of 475 [2024-10-31 22:15:57,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:58,365 INFO L124 PetriNetUnfolderBase]: 145/2656 cut-off events. [2024-10-31 22:15:58,366 INFO L125 PetriNetUnfolderBase]: For 584/591 co-relation queries the response was YES. [2024-10-31 22:15:58,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3698 conditions, 2656 events. 145/2656 cut-off events. For 584/591 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 19428 event pairs, 17 based on Foata normal form. 1/2463 useless extension candidates. Maximal degree in co-relation 3601. Up to 77 conditions per place. [2024-10-31 22:15:58,392 INFO L140 encePairwiseOnDemand]: 471/475 looper letters, 15 selfloop transitions, 2 changer transitions 0/453 dead transitions. [2024-10-31 22:15:58,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 463 places, 453 transitions, 1398 flow [2024-10-31 22:15:58,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:58,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:58,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1372 transitions. [2024-10-31 22:15:58,394 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9628070175438597 [2024-10-31 22:15:58,394 INFO L175 Difference]: Start difference. First operand has 461 places, 448 transitions, 1351 flow. Second operand 3 states and 1372 transitions. [2024-10-31 22:15:58,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 463 places, 453 transitions, 1398 flow [2024-10-31 22:15:58,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 453 transitions, 1381 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-31 22:15:58,407 INFO L231 Difference]: Finished difference. Result has 459 places, 450 transitions, 1354 flow [2024-10-31 22:15:58,408 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=1334, PETRI_DIFFERENCE_MINUEND_PLACES=455, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=448, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=446, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1354, PETRI_PLACES=459, PETRI_TRANSITIONS=450} [2024-10-31 22:15:58,408 INFO L277 CegarLoopForPetriNet]: 436 programPoint places, 23 predicate places. [2024-10-31 22:15:58,408 INFO L471 AbstractCegarLoop]: Abstraction has has 459 places, 450 transitions, 1354 flow [2024-10-31 22:15:58,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 454.3333333333333) internal successors, (1363), 3 states have internal predecessors, (1363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:58,409 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:58,409 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:58,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-31 22:15:58,410 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:15:58,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:58,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1331539059, now seen corresponding path program 2 times [2024-10-31 22:15:58,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:58,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44501062] [2024-10-31 22:15:58,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:58,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:58,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:58,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:58,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:58,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44501062] [2024-10-31 22:15:58,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44501062] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:58,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:58,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:15:58,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425213388] [2024-10-31 22:15:58,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:58,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:58,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:58,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:58,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:58,474 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 451 out of 475 [2024-10-31 22:15:58,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 459 places, 450 transitions, 1354 flow. Second operand has 3 states, 3 states have (on average 454.3333333333333) internal successors, (1363), 3 states have internal predecessors, (1363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:58,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:58,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 451 of 475 [2024-10-31 22:15:58,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:59,013 INFO L124 PetriNetUnfolderBase]: 139/2631 cut-off events. [2024-10-31 22:15:59,013 INFO L125 PetriNetUnfolderBase]: For 757/777 co-relation queries the response was YES. [2024-10-31 22:15:59,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3819 conditions, 2631 events. 139/2631 cut-off events. For 757/777 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 19168 event pairs, 13 based on Foata normal form. 13/2478 useless extension candidates. Maximal degree in co-relation 3720. Up to 72 conditions per place. [2024-10-31 22:15:59,040 INFO L140 encePairwiseOnDemand]: 471/475 looper letters, 17 selfloop transitions, 2 changer transitions 0/455 dead transitions. [2024-10-31 22:15:59,040 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 455 transitions, 1409 flow [2024-10-31 22:15:59,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:59,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:59,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1372 transitions. [2024-10-31 22:15:59,042 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9628070175438597 [2024-10-31 22:15:59,043 INFO L175 Difference]: Start difference. First operand has 459 places, 450 transitions, 1354 flow. Second operand 3 states and 1372 transitions. [2024-10-31 22:15:59,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 455 transitions, 1409 flow [2024-10-31 22:15:59,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 455 transitions, 1407 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:15:59,057 INFO L231 Difference]: Finished difference. Result has 462 places, 452 transitions, 1376 flow [2024-10-31 22:15:59,058 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=1352, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=450, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=448, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1376, PETRI_PLACES=462, PETRI_TRANSITIONS=452} [2024-10-31 22:15:59,058 INFO L277 CegarLoopForPetriNet]: 436 programPoint places, 26 predicate places. [2024-10-31 22:15:59,058 INFO L471 AbstractCegarLoop]: Abstraction has has 462 places, 452 transitions, 1376 flow [2024-10-31 22:15:59,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 454.3333333333333) internal successors, (1363), 3 states have internal predecessors, (1363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:59,059 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:59,060 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:59,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-31 22:15:59,060 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:15:59,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:59,061 INFO L85 PathProgramCache]: Analyzing trace with hash 318532884, now seen corresponding path program 1 times [2024-10-31 22:15:59,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:59,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155040247] [2024-10-31 22:15:59,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:59,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:59,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:59,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:59,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:59,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155040247] [2024-10-31 22:15:59,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155040247] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:59,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:59,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:59,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580833296] [2024-10-31 22:15:59,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:59,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:59,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:59,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:59,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:59,147 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 447 out of 475 [2024-10-31 22:15:59,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 462 places, 452 transitions, 1376 flow. Second operand has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:59,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:59,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 447 of 475 [2024-10-31 22:15:59,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:59,613 INFO L124 PetriNetUnfolderBase]: 126/2491 cut-off events. [2024-10-31 22:15:59,613 INFO L125 PetriNetUnfolderBase]: For 645/687 co-relation queries the response was YES. [2024-10-31 22:15:59,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3667 conditions, 2491 events. 126/2491 cut-off events. For 645/687 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 17794 event pairs, 10 based on Foata normal form. 0/2358 useless extension candidates. Maximal degree in co-relation 3571. Up to 74 conditions per place. [2024-10-31 22:15:59,638 INFO L140 encePairwiseOnDemand]: 471/475 looper letters, 12 selfloop transitions, 1 changer transitions 0/449 dead transitions. [2024-10-31 22:15:59,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 461 places, 449 transitions, 1396 flow [2024-10-31 22:15:59,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:59,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:59,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1357 transitions. [2024-10-31 22:15:59,641 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.952280701754386 [2024-10-31 22:15:59,641 INFO L175 Difference]: Start difference. First operand has 462 places, 452 transitions, 1376 flow. Second operand 3 states and 1357 transitions. [2024-10-31 22:15:59,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 461 places, 449 transitions, 1396 flow [2024-10-31 22:15:59,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 460 places, 449 transitions, 1390 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-31 22:15:59,702 INFO L231 Difference]: Finished difference. Result has 460 places, 449 transitions, 1366 flow [2024-10-31 22:15:59,703 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=1364, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=448, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1366, PETRI_PLACES=460, PETRI_TRANSITIONS=449} [2024-10-31 22:15:59,704 INFO L277 CegarLoopForPetriNet]: 436 programPoint places, 24 predicate places. [2024-10-31 22:15:59,704 INFO L471 AbstractCegarLoop]: Abstraction has has 460 places, 449 transitions, 1366 flow [2024-10-31 22:15:59,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:59,705 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:59,705 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:59,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-31 22:15:59,705 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:15:59,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:59,706 INFO L85 PathProgramCache]: Analyzing trace with hash 994397043, now seen corresponding path program 1 times [2024-10-31 22:15:59,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:59,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920571835] [2024-10-31 22:15:59,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:59,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:59,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:59,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:59,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:59,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920571835] [2024-10-31 22:15:59,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920571835] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:59,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:59,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:59,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412303292] [2024-10-31 22:15:59,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:59,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:59,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:59,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:59,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:59,787 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 447 out of 475 [2024-10-31 22:15:59,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 449 transitions, 1366 flow. Second operand has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:59,789 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:59,789 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 447 of 475 [2024-10-31 22:15:59,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:00,320 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1288] thread2EXIT-->L100: Formula: (and (= 0 v_thread2Thread1of1ForFork1_thidvar2_4) (= |v_ULTIMATE.start_main_~t2~0#1_6| v_thread2Thread1of1ForFork1_thidvar0_4) (= 0 v_thread2Thread1of1ForFork1_thidvar1_4)) InVars {thread2Thread1of1ForFork1_thidvar2=v_thread2Thread1of1ForFork1_thidvar2_4, thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_4, ULTIMATE.start_main_~t2~0#1=|v_ULTIMATE.start_main_~t2~0#1_6|, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_4} OutVars{thread2Thread1of1ForFork1_thidvar2=v_thread2Thread1of1ForFork1_thidvar2_4, thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_4, ULTIMATE.start_main_~t2~0#1=|v_ULTIMATE.start_main_~t2~0#1_6|, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_4} AuxVars[] AssignedVars[][272], [Black: 559#(and (<= ~n1~0 0) (= thread2Thread1of1ForFork1_~i~1 0)), 553#true, 161#L100true, Black: 514#(not |thread2Thread1of1ForFork1_#t~short10|), 639#true, 491#(= |#race~count1~0| 0), 602#true, 473#(= |#race~n1~0| 0), 633#(= ~count2~0 ~count1~0), Black: 588#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), 495#(= |#race~count2~0| 0), Black: 582#(<= ~n2~0 0), Black: 583#(and (= thread1Thread1of1ForFork0_~i~0 0) (<= ~n2~0 0)), Black: 590#(and (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|) (<= ~n2~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n2~0 |ULTIMATE.start_create_fresh_int_array_~size#1|)), Black: 596#(and (= thread1Thread1of1ForFork0_~i~0 0) (<= ~n2~0 0) (not |thread1Thread1of1ForFork0_#t~short1|)), Black: 526#(and (<= ~n1~0 0) (= thread1Thread1of1ForFork0_~i~0 0)), Black: 533#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (<= ~n1~0 0) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|)), Black: 525#(<= ~n1~0 0), Black: 539#(and (<= ~n1~0 0) (= thread1Thread1of1ForFork0_~i~0 0) (not |thread1Thread1of1ForFork0_#t~short1|)), Black: 531#(and (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_~size#1|) (= |ULTIMATE.start_create_fresh_int_array_~i~2#1| 0) (<= ~n1~0 |ULTIMATE.start_create_fresh_int_array_#in~size#1|)), 485#(= |#race~n2~0| 0), Black: 546#true, Black: 489#true, 548#(= |#race~get2~0| 0), Black: 608#(and (= thread2Thread1of1ForFork1_~i~1 0) (<= ~n2~0 0)), Black: 621#(and (not |thread2Thread1of1ForFork1_#t~short10|) (= thread2Thread1of1ForFork1_~i~1 0) (<= ~n2~0 0)), Black: 493#true, Black: 607#(<= ~n2~0 0), Black: 628#(not (= ~count2~0 ~count1~0)), 507#(= |#race~get1~0| 0), Black: 502#(not |thread1Thread1of1ForFork0_#t~short1|), Black: 631#true, Black: 505#true, Black: 572#(and (<= ~n1~0 0) (not |thread2Thread1of1ForFork1_#t~short10|) (= thread2Thread1of1ForFork1_~i~1 0)), 636#true, 520#true, Black: 558#(<= ~n1~0 0)]) [2024-10-31 22:16:00,321 INFO L294 olderBase$Statistics]: this new event has 238 ancestors and is cut-off event [2024-10-31 22:16:00,321 INFO L297 olderBase$Statistics]: existing Event has 260 ancestors and is cut-off event [2024-10-31 22:16:00,321 INFO L297 olderBase$Statistics]: existing Event has 229 ancestors and is cut-off event [2024-10-31 22:16:00,321 INFO L297 olderBase$Statistics]: existing Event has 229 ancestors and is cut-off event [2024-10-31 22:16:00,328 INFO L124 PetriNetUnfolderBase]: 128/2358 cut-off events. [2024-10-31 22:16:00,328 INFO L125 PetriNetUnfolderBase]: For 494/520 co-relation queries the response was YES. [2024-10-31 22:16:00,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3399 conditions, 2358 events. 128/2358 cut-off events. For 494/520 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 16586 event pairs, 10 based on Foata normal form. 9/2240 useless extension candidates. Maximal degree in co-relation 3303. Up to 99 conditions per place. [2024-10-31 22:16:00,346 INFO L140 encePairwiseOnDemand]: 469/475 looper letters, 6 selfloop transitions, 0 changer transitions 87/448 dead transitions. [2024-10-31 22:16:00,347 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 448 transitions, 1392 flow [2024-10-31 22:16:00,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:00,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:00,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1358 transitions. [2024-10-31 22:16:00,350 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9529824561403509 [2024-10-31 22:16:00,350 INFO L175 Difference]: Start difference. First operand has 460 places, 449 transitions, 1366 flow. Second operand 3 states and 1358 transitions. [2024-10-31 22:16:00,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 448 transitions, 1392 flow [2024-10-31 22:16:00,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 448 transitions, 1391 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:16:00,364 INFO L231 Difference]: Finished difference. Result has 458 places, 361 transitions, 945 flow [2024-10-31 22:16:00,365 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=1359, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=446, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=446, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=945, PETRI_PLACES=458, PETRI_TRANSITIONS=361} [2024-10-31 22:16:00,365 INFO L277 CegarLoopForPetriNet]: 436 programPoint places, 22 predicate places. [2024-10-31 22:16:00,366 INFO L471 AbstractCegarLoop]: Abstraction has has 458 places, 361 transitions, 945 flow [2024-10-31 22:16:00,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 449.3333333333333) internal successors, (1348), 3 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:00,367 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:00,367 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:00,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-31 22:16:00,367 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:16:00,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:00,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1625429660, now seen corresponding path program 1 times [2024-10-31 22:16:00,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:00,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252369369] [2024-10-31 22:16:00,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:00,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:00,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:00,935 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:16:00,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:00,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252369369] [2024-10-31 22:16:00,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252369369] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:00,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:00,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:16:00,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470764755] [2024-10-31 22:16:00,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:00,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:16:00,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:00,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:16:00,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:16:01,536 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 475 [2024-10-31 22:16:01,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 361 transitions, 945 flow. Second operand has 6 states, 6 states have (on average 436.8333333333333) internal successors, (2621), 6 states have internal predecessors, (2621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:01,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:01,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 475 [2024-10-31 22:16:01,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:01,873 INFO L124 PetriNetUnfolderBase]: 85/1368 cut-off events. [2024-10-31 22:16:01,873 INFO L125 PetriNetUnfolderBase]: For 287/288 co-relation queries the response was YES. [2024-10-31 22:16:01,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2034 conditions, 1368 events. 85/1368 cut-off events. For 287/288 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 8453 event pairs, 4 based on Foata normal form. 0/1284 useless extension candidates. Maximal degree in co-relation 2004. Up to 42 conditions per place. [2024-10-31 22:16:01,887 INFO L140 encePairwiseOnDemand]: 467/475 looper letters, 25 selfloop transitions, 6 changer transitions 0/364 dead transitions. [2024-10-31 22:16:01,887 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 364 transitions, 1021 flow [2024-10-31 22:16:01,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:16:01,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:16:01,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2637 transitions. [2024-10-31 22:16:01,895 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9252631578947368 [2024-10-31 22:16:01,895 INFO L175 Difference]: Start difference. First operand has 458 places, 361 transitions, 945 flow. Second operand 6 states and 2637 transitions. [2024-10-31 22:16:01,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 364 transitions, 1021 flow [2024-10-31 22:16:01,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 364 transitions, 915 flow, removed 22 selfloop flow, removed 28 redundant places. [2024-10-31 22:16:01,907 INFO L231 Difference]: Finished difference. Result has 375 places, 360 transitions, 858 flow [2024-10-31 22:16:01,908 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=839, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=858, PETRI_PLACES=375, PETRI_TRANSITIONS=360} [2024-10-31 22:16:01,912 INFO L277 CegarLoopForPetriNet]: 436 programPoint places, -61 predicate places. [2024-10-31 22:16:01,912 INFO L471 AbstractCegarLoop]: Abstraction has has 375 places, 360 transitions, 858 flow [2024-10-31 22:16:01,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 436.8333333333333) internal successors, (2621), 6 states have internal predecessors, (2621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:01,913 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:01,914 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:01,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-31 22:16:01,914 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:16:01,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:01,918 INFO L85 PathProgramCache]: Analyzing trace with hash 684140880, now seen corresponding path program 1 times [2024-10-31 22:16:01,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:01,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252299572] [2024-10-31 22:16:01,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:01,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:01,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:02,683 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:16:02,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:02,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252299572] [2024-10-31 22:16:02,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252299572] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:02,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:02,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:16:02,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126338800] [2024-10-31 22:16:02,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:02,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:16:02,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:02,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:16:02,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:16:03,378 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 475 [2024-10-31 22:16:03,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 360 transitions, 858 flow. Second operand has 6 states, 6 states have (on average 437.0) internal successors, (2622), 6 states have internal predecessors, (2622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:03,381 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:03,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 475 [2024-10-31 22:16:03,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:03,612 INFO L124 PetriNetUnfolderBase]: 89/1146 cut-off events. [2024-10-31 22:16:03,612 INFO L125 PetriNetUnfolderBase]: For 114/117 co-relation queries the response was YES. [2024-10-31 22:16:03,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1547 conditions, 1146 events. 89/1146 cut-off events. For 114/117 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6527 event pairs, 5 based on Foata normal form. 0/1085 useless extension candidates. Maximal degree in co-relation 1529. Up to 66 conditions per place. [2024-10-31 22:16:03,622 INFO L140 encePairwiseOnDemand]: 467/475 looper letters, 25 selfloop transitions, 6 changer transitions 0/363 dead transitions. [2024-10-31 22:16:03,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 363 transitions, 930 flow [2024-10-31 22:16:03,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:16:03,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:16:03,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2637 transitions. [2024-10-31 22:16:03,627 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9252631578947368 [2024-10-31 22:16:03,627 INFO L175 Difference]: Start difference. First operand has 375 places, 360 transitions, 858 flow. Second operand 6 states and 2637 transitions. [2024-10-31 22:16:03,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 363 transitions, 930 flow [2024-10-31 22:16:03,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 363 transitions, 921 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-31 22:16:03,635 INFO L231 Difference]: Finished difference. Result has 375 places, 359 transitions, 864 flow [2024-10-31 22:16:03,636 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=845, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=864, PETRI_PLACES=375, PETRI_TRANSITIONS=359} [2024-10-31 22:16:03,637 INFO L277 CegarLoopForPetriNet]: 436 programPoint places, -61 predicate places. [2024-10-31 22:16:03,637 INFO L471 AbstractCegarLoop]: Abstraction has has 375 places, 359 transitions, 864 flow [2024-10-31 22:16:03,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 437.0) internal successors, (2622), 6 states have internal predecessors, (2622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:03,638 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:03,638 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:03,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-31 22:16:03,639 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:16:03,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:03,639 INFO L85 PathProgramCache]: Analyzing trace with hash 2045752898, now seen corresponding path program 1 times [2024-10-31 22:16:03,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:03,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81526540] [2024-10-31 22:16:03,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:03,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:03,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:04,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:16:04,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:04,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81526540] [2024-10-31 22:16:04,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81526540] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:04,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:04,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:16:04,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804741416] [2024-10-31 22:16:04,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:04,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:16:04,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:04,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:16:04,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:16:04,806 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 475 [2024-10-31 22:16:04,809 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 359 transitions, 864 flow. Second operand has 6 states, 6 states have (on average 436.8333333333333) internal successors, (2621), 6 states have internal predecessors, (2621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:04,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:04,809 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 475 [2024-10-31 22:16:04,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:05,082 INFO L124 PetriNetUnfolderBase]: 79/1333 cut-off events. [2024-10-31 22:16:05,083 INFO L125 PetriNetUnfolderBase]: For 110/111 co-relation queries the response was YES. [2024-10-31 22:16:05,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1775 conditions, 1333 events. 79/1333 cut-off events. For 110/111 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8016 event pairs, 4 based on Foata normal form. 0/1273 useless extension candidates. Maximal degree in co-relation 1756. Up to 42 conditions per place. [2024-10-31 22:16:05,099 INFO L140 encePairwiseOnDemand]: 467/475 looper letters, 25 selfloop transitions, 6 changer transitions 0/361 dead transitions. [2024-10-31 22:16:05,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 361 transitions, 934 flow [2024-10-31 22:16:05,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:16:05,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:16:05,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2637 transitions. [2024-10-31 22:16:05,103 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9252631578947368 [2024-10-31 22:16:05,104 INFO L175 Difference]: Start difference. First operand has 375 places, 359 transitions, 864 flow. Second operand 6 states and 2637 transitions. [2024-10-31 22:16:05,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 361 transitions, 934 flow [2024-10-31 22:16:05,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 361 transitions, 925 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-31 22:16:05,114 INFO L231 Difference]: Finished difference. Result has 374 places, 357 transitions, 863 flow [2024-10-31 22:16:05,114 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=851, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=863, PETRI_PLACES=374, PETRI_TRANSITIONS=357} [2024-10-31 22:16:05,115 INFO L277 CegarLoopForPetriNet]: 436 programPoint places, -62 predicate places. [2024-10-31 22:16:05,115 INFO L471 AbstractCegarLoop]: Abstraction has has 374 places, 357 transitions, 863 flow [2024-10-31 22:16:05,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 436.8333333333333) internal successors, (2621), 6 states have internal predecessors, (2621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:05,116 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:05,116 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:05,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-31 22:16:05,117 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:16:05,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:05,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1744380554, now seen corresponding path program 1 times [2024-10-31 22:16:05,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:05,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196580976] [2024-10-31 22:16:05,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:05,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:05,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:05,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:16:05,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:05,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196580976] [2024-10-31 22:16:05,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196580976] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:05,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:05,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:16:05,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442356301] [2024-10-31 22:16:05,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:05,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:16:05,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:05,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:16:05,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:16:06,449 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 434 out of 475 [2024-10-31 22:16:06,453 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 357 transitions, 863 flow. Second operand has 6 states, 6 states have (on average 437.0) internal successors, (2622), 6 states have internal predecessors, (2622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:06,453 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:06,453 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 434 of 475 [2024-10-31 22:16:06,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:06,725 INFO L124 PetriNetUnfolderBase]: 84/1120 cut-off events. [2024-10-31 22:16:06,725 INFO L125 PetriNetUnfolderBase]: For 136/139 co-relation queries the response was YES. [2024-10-31 22:16:06,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1528 conditions, 1120 events. 84/1120 cut-off events. For 136/139 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6159 event pairs, 5 based on Foata normal form. 0/1079 useless extension candidates. Maximal degree in co-relation 1509. Up to 61 conditions per place. [2024-10-31 22:16:06,738 INFO L140 encePairwiseOnDemand]: 467/475 looper letters, 25 selfloop transitions, 6 changer transitions 0/359 dead transitions. [2024-10-31 22:16:06,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 359 transitions, 933 flow [2024-10-31 22:16:06,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:16:06,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:16:06,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2637 transitions. [2024-10-31 22:16:06,745 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9252631578947368 [2024-10-31 22:16:06,745 INFO L175 Difference]: Start difference. First operand has 374 places, 357 transitions, 863 flow. Second operand 6 states and 2637 transitions. [2024-10-31 22:16:06,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 359 transitions, 933 flow [2024-10-31 22:16:06,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 359 transitions, 921 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:16:06,753 INFO L231 Difference]: Finished difference. Result has 372 places, 355 transitions, 859 flow [2024-10-31 22:16:06,754 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=847, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=859, PETRI_PLACES=372, PETRI_TRANSITIONS=355} [2024-10-31 22:16:06,754 INFO L277 CegarLoopForPetriNet]: 436 programPoint places, -64 predicate places. [2024-10-31 22:16:06,755 INFO L471 AbstractCegarLoop]: Abstraction has has 372 places, 355 transitions, 859 flow [2024-10-31 22:16:06,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 437.0) internal successors, (2622), 6 states have internal predecessors, (2622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:06,757 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:06,757 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:06,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-31 22:16:06,758 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting thread1Err12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:16:06,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:06,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1514730149, now seen corresponding path program 1 times [2024-10-31 22:16:06,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:06,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126059933] [2024-10-31 22:16:06,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:06,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:06,850 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:16:06,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:06,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126059933] [2024-10-31 22:16:06,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126059933] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:06,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:06,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:06,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370557227] [2024-10-31 22:16:06,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:06,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:06,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:06,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:06,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:06,883 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 449 out of 475 [2024-10-31 22:16:06,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 355 transitions, 859 flow. Second operand has 3 states, 3 states have (on average 450.3333333333333) internal successors, (1351), 3 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:06,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:06,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 449 of 475 [2024-10-31 22:16:06,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:16:07,134 INFO L124 PetriNetUnfolderBase]: 66/1173 cut-off events. [2024-10-31 22:16:07,134 INFO L125 PetriNetUnfolderBase]: For 100/103 co-relation queries the response was YES. [2024-10-31 22:16:07,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1518 conditions, 1173 events. 66/1173 cut-off events. For 100/103 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 6293 event pairs, 4 based on Foata normal form. 0/1135 useless extension candidates. Maximal degree in co-relation 1499. Up to 36 conditions per place. [2024-10-31 22:16:07,148 INFO L140 encePairwiseOnDemand]: 472/475 looper letters, 7 selfloop transitions, 2 changer transitions 0/355 dead transitions. [2024-10-31 22:16:07,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 355 transitions, 878 flow [2024-10-31 22:16:07,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:16:07,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:16:07,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1357 transitions. [2024-10-31 22:16:07,151 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.952280701754386 [2024-10-31 22:16:07,152 INFO L175 Difference]: Start difference. First operand has 372 places, 355 transitions, 859 flow. Second operand 3 states and 1357 transitions. [2024-10-31 22:16:07,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 355 transitions, 878 flow [2024-10-31 22:16:07,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 355 transitions, 866 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:16:07,160 INFO L231 Difference]: Finished difference. Result has 368 places, 354 transitions, 849 flow [2024-10-31 22:16:07,160 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=475, PETRI_DIFFERENCE_MINUEND_FLOW=845, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=849, PETRI_PLACES=368, PETRI_TRANSITIONS=354} [2024-10-31 22:16:07,161 INFO L277 CegarLoopForPetriNet]: 436 programPoint places, -68 predicate places. [2024-10-31 22:16:07,161 INFO L471 AbstractCegarLoop]: Abstraction has has 368 places, 354 transitions, 849 flow [2024-10-31 22:16:07,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 450.3333333333333) internal successors, (1351), 3 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:07,163 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:16:07,163 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:16:07,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-31 22:16:07,163 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting thread2Err12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2024-10-31 22:16:07,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:16:07,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1215982408, now seen corresponding path program 1 times [2024-10-31 22:16:07,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:16:07,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466350620] [2024-10-31 22:16:07,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:16:07,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:16:07,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:16:07,243 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:16:07,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:16:07,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466350620] [2024-10-31 22:16:07,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466350620] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:16:07,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:16:07,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:16:07,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859824335] [2024-10-31 22:16:07,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:16:07,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:16:07,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:16:07,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:16:07,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:16:07,275 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 449 out of 475 [2024-10-31 22:16:07,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 354 transitions, 849 flow. Second operand has 3 states, 3 states have (on average 450.6666666666667) internal successors, (1352), 3 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:16:07,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:16:07,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 449 of 475 [2024-10-31 22:16:07,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand