./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a940f7-f9f9-48df-a8ec-5d903daa2c89/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a940f7-f9f9-48df-a8ec-5d903daa2c89/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a940f7-f9f9-48df-a8ec-5d903daa2c89/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a940f7-f9f9-48df-a8ec-5d903daa2c89/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a940f7-f9f9-48df-a8ec-5d903daa2c89/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a940f7-f9f9-48df-a8ec-5d903daa2c89/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 29fee1864b0d56497c32cb33e6aaa24ed5707e21c5b89ec418c6707c5ac52336 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:05:27,351 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:05:27,505 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a940f7-f9f9-48df-a8ec-5d903daa2c89/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 22:05:27,513 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:05:27,514 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:05:27,543 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:05:27,544 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:05:27,545 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:05:27,546 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:05:27,547 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:05:27,548 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:05:27,549 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:05:27,549 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:05:27,550 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:05:27,551 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:05:27,552 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:05:27,552 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:05:27,553 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:05:27,554 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:05:27,554 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:05:27,555 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:05:27,556 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:05:27,557 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 22:05:27,557 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:05:27,558 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:05:27,558 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:05:27,559 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:05:27,560 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:05:27,560 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:05:27,561 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:05:27,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:05:27,562 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:05:27,562 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:05:27,563 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:05:27,563 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:05:27,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:05:27,564 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:05:27,564 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:05:27,564 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:05:27,565 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:05:27,565 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:05:27,566 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_27a940f7-f9f9-48df-a8ec-5d903daa2c89/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a940f7-f9f9-48df-a8ec-5d903daa2c89/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29fee1864b0d56497c32cb33e6aaa24ed5707e21c5b89ec418c6707c5ac52336 [2023-11-06 22:05:27,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:05:28,026 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:05:28,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:05:28,031 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:05:28,031 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:05:28,033 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a940f7-f9f9-48df-a8ec-5d903daa2c89/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c [2023-11-06 22:05:31,380 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:05:31,594 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:05:31,594 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a940f7-f9f9-48df-a8ec-5d903daa2c89/sv-benchmarks/c/weaver/popl20-prod-cons-eq.wvr.c [2023-11-06 22:05:31,629 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a940f7-f9f9-48df-a8ec-5d903daa2c89/bin/uautomizer-verify-WvqO1wxjHP/data/effec8af9/62f7cd0e32944e8d9bbbf700316d9ef2/FLAGcc44ba440 [2023-11-06 22:05:31,649 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a940f7-f9f9-48df-a8ec-5d903daa2c89/bin/uautomizer-verify-WvqO1wxjHP/data/effec8af9/62f7cd0e32944e8d9bbbf700316d9ef2 [2023-11-06 22:05:31,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:05:31,657 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:05:31,661 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:05:31,661 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:05:31,667 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:05:31,668 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:05:31" (1/1) ... [2023-11-06 22:05:31,669 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@431c5cf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:31, skipping insertion in model container [2023-11-06 22:05:31,669 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:05:31" (1/1) ... [2023-11-06 22:05:31,720 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:05:32,095 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:05:32,106 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:05:32,199 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:05:32,215 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:05:32,215 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:05:32,222 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:05:32,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:32 WrapperNode [2023-11-06 22:05:32,223 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:05:32,224 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:05:32,225 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:05:32,225 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:05:32,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:32" (1/1) ... [2023-11-06 22:05:32,251 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:32" (1/1) ... [2023-11-06 22:05:32,334 INFO L138 Inliner]: procedures = 28, calls = 81, calls flagged for inlining = 27, calls inlined = 33, statements flattened = 839 [2023-11-06 22:05:32,334 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:05:32,335 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:05:32,335 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:05:32,335 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:05:32,345 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:32" (1/1) ... [2023-11-06 22:05:32,346 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:32" (1/1) ... [2023-11-06 22:05:32,360 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:32" (1/1) ... [2023-11-06 22:05:32,363 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:32" (1/1) ... [2023-11-06 22:05:32,423 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:32" (1/1) ... [2023-11-06 22:05:32,447 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:32" (1/1) ... [2023-11-06 22:05:32,467 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:32" (1/1) ... [2023-11-06 22:05:32,471 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:32" (1/1) ... [2023-11-06 22:05:32,497 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:05:32,498 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:05:32,498 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:05:32,498 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:05:32,499 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:32" (1/1) ... [2023-11-06 22:05:32,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:05:32,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a940f7-f9f9-48df-a8ec-5d903daa2c89/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:05:32,535 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a940f7-f9f9-48df-a8ec-5d903daa2c89/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:05:32,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27a940f7-f9f9-48df-a8ec-5d903daa2c89/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:05:32,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:05:32,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:05:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:05:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:05:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:05:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:05:32,592 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 22:05:32,593 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 22:05:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 22:05:32,593 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 22:05:32,593 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-06 22:05:32,593 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-06 22:05:32,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:05:32,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:05:32,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:05:32,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:05:32,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:05:32,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:05:32,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:05:32,599 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:05:32,814 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:05:32,818 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:05:34,352 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:05:35,583 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:05:35,584 INFO L302 CfgBuilder]: Removed 9 assume(true) statements. [2023-11-06 22:05:35,588 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:05:35 BoogieIcfgContainer [2023-11-06 22:05:35,588 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:05:35,591 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:05:35,592 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:05:35,596 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:05:35,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:05:31" (1/3) ... [2023-11-06 22:05:35,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@91d6966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:05:35, skipping insertion in model container [2023-11-06 22:05:35,598 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:05:32" (2/3) ... [2023-11-06 22:05:35,600 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@91d6966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:05:35, skipping insertion in model container [2023-11-06 22:05:35,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:05:35" (3/3) ... [2023-11-06 22:05:35,602 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-prod-cons-eq.wvr.c [2023-11-06 22:05:35,613 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:05:35,625 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:05:35,625 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 130 error locations. [2023-11-06 22:05:35,626 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:05:36,030 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-06 22:05:36,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 803 places, 834 transitions, 1689 flow [2023-11-06 22:05:36,537 INFO L124 PetriNetUnfolderBase]: 41/831 cut-off events. [2023-11-06 22:05:36,537 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 22:05:36,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 844 conditions, 831 events. 41/831 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1570 event pairs, 0 based on Foata normal form. 0/660 useless extension candidates. Maximal degree in co-relation 580. Up to 2 conditions per place. [2023-11-06 22:05:36,558 INFO L82 GeneralOperation]: Start removeDead. Operand has 803 places, 834 transitions, 1689 flow [2023-11-06 22:05:36,587 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 778 places, 808 transitions, 1634 flow [2023-11-06 22:05:36,591 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:05:36,609 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 778 places, 808 transitions, 1634 flow [2023-11-06 22:05:36,614 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 778 places, 808 transitions, 1634 flow [2023-11-06 22:05:36,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 778 places, 808 transitions, 1634 flow [2023-11-06 22:05:36,942 INFO L124 PetriNetUnfolderBase]: 40/808 cut-off events. [2023-11-06 22:05:36,943 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 22:05:36,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 821 conditions, 808 events. 40/808 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1481 event pairs, 0 based on Foata normal form. 0/639 useless extension candidates. Maximal degree in co-relation 580. Up to 2 conditions per place. [2023-11-06 22:05:37,002 INFO L119 LiptonReduction]: Number of co-enabled transitions 64810 [2023-11-06 22:06:07,853 WARN L293 SmtUtils]: Spent 14.02s on a formula simplification. DAG size of input: 334 DAG size of output: 134 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:06:30,995 WARN L293 SmtUtils]: Spent 21.37s on a formula simplification. DAG size of input: 381 DAG size of output: 155 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:07:00,286 INFO L134 LiptonReduction]: Checked pairs total: 387572 [2023-11-06 22:07:00,287 INFO L136 LiptonReduction]: Total number of compositions: 871 [2023-11-06 22:07:00,303 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:07:00,308 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@5d8ef995, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:07:00,309 INFO L358 AbstractCegarLoop]: Starting to check reachability of 225 error locations. [2023-11-06 22:07:00,310 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:07:00,310 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 22:07:00,311 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:07:00,311 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:07:00,312 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 22:07:00,312 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2023-11-06 22:07:00,317 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:00,318 INFO L85 PathProgramCache]: Analyzing trace with hash 3812, now seen corresponding path program 1 times [2023-11-06 22:07:00,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:07:00,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241462542] [2023-11-06 22:07:00,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:00,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:07:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:00,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:07:00,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:07:00,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241462542] [2023-11-06 22:07:00,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241462542] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:07:00,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:07:00,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 22:07:00,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648109073] [2023-11-06 22:07:00,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:07:00,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:07:00,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:07:00,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:07:00,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:07:00,482 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 744 out of 1705 [2023-11-06 22:07:00,489 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 244 transitions, 506 flow. Second operand has 2 states, 2 states have (on average 744.5) internal successors, (1489), 2 states have internal predecessors, (1489), 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) [2023-11-06 22:07:00,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:07:00,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 744 of 1705 [2023-11-06 22:07:00,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:07:03,183 INFO L124 PetriNetUnfolderBase]: 6381/13554 cut-off events. [2023-11-06 22:07:03,184 INFO L125 PetriNetUnfolderBase]: For 462/462 co-relation queries the response was YES. [2023-11-06 22:07:03,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22811 conditions, 13554 events. 6381/13554 cut-off events. For 462/462 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 104776 event pairs, 5325 based on Foata normal form. 891/12951 useless extension candidates. Maximal degree in co-relation 20440. Up to 9010 conditions per place. [2023-11-06 22:07:03,323 INFO L140 encePairwiseOnDemand]: 1594/1705 looper letters, 66 selfloop transitions, 0 changer transitions 1/133 dead transitions. [2023-11-06 22:07:03,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 133 transitions, 418 flow [2023-11-06 22:07:03,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:07:03,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:07:03,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1666 transitions. [2023-11-06 22:07:03,352 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48856304985337246 [2023-11-06 22:07:03,353 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1666 transitions. [2023-11-06 22:07:03,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1666 transitions. [2023-11-06 22:07:03,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:07:03,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1666 transitions. [2023-11-06 22:07:03,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 833.0) internal successors, (1666), 2 states have internal predecessors, (1666), 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) [2023-11-06 22:07:03,397 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1705.0) internal successors, (5115), 3 states have internal predecessors, (5115), 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) [2023-11-06 22:07:03,402 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1705.0) internal successors, (5115), 3 states have internal predecessors, (5115), 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) [2023-11-06 22:07:03,405 INFO L175 Difference]: Start difference. First operand has 239 places, 244 transitions, 506 flow. Second operand 2 states and 1666 transitions. [2023-11-06 22:07:03,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 133 transitions, 418 flow [2023-11-06 22:07:03,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 133 transitions, 406 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-06 22:07:03,431 INFO L231 Difference]: Finished difference. Result has 128 places, 132 transitions, 269 flow [2023-11-06 22:07:03,433 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1705, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=269, PETRI_PLACES=128, PETRI_TRANSITIONS=132} [2023-11-06 22:07:03,438 INFO L281 CegarLoopForPetriNet]: 239 programPoint places, -111 predicate places. [2023-11-06 22:07:03,439 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 132 transitions, 269 flow [2023-11-06 22:07:03,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 744.5) internal successors, (1489), 2 states have internal predecessors, (1489), 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) [2023-11-06 22:07:03,441 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:07:03,441 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:07:03,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:07:03,442 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2023-11-06 22:07:03,454 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:03,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1917450697, now seen corresponding path program 1 times [2023-11-06 22:07:03,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:07:03,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192707406] [2023-11-06 22:07:03,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:03,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:07:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:03,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:07:03,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:07:03,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192707406] [2023-11-06 22:07:03,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192707406] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:07:03,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:07:03,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:07:03,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790884440] [2023-11-06 22:07:03,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:07:03,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:07:03,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:07:03,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:07:03,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:07:03,756 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 741 out of 1705 [2023-11-06 22:07:03,761 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 132 transitions, 269 flow. Second operand has 3 states, 3 states have (on average 744.0) internal successors, (2232), 3 states have internal predecessors, (2232), 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) [2023-11-06 22:07:03,761 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:07:03,761 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 741 of 1705 [2023-11-06 22:07:03,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:07:06,451 INFO L124 PetriNetUnfolderBase]: 7405/14867 cut-off events. [2023-11-06 22:07:06,452 INFO L125 PetriNetUnfolderBase]: For 136/291 co-relation queries the response was YES. [2023-11-06 22:07:06,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25369 conditions, 14867 events. 7405/14867 cut-off events. For 136/291 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 110308 event pairs, 3733 based on Foata normal form. 3/13224 useless extension candidates. Maximal degree in co-relation 25366. Up to 9722 conditions per place. [2023-11-06 22:07:06,628 INFO L140 encePairwiseOnDemand]: 1700/1705 looper letters, 102 selfloop transitions, 4 changer transitions 0/170 dead transitions. [2023-11-06 22:07:06,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 170 transitions, 559 flow [2023-11-06 22:07:06,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:07:06,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:07:06,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2330 transitions. [2023-11-06 22:07:06,639 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4555229716520039 [2023-11-06 22:07:06,640 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2330 transitions. [2023-11-06 22:07:06,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2330 transitions. [2023-11-06 22:07:06,642 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:07:06,642 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2330 transitions. [2023-11-06 22:07:06,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 776.6666666666666) internal successors, (2330), 3 states have internal predecessors, (2330), 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) [2023-11-06 22:07:06,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1705.0) internal successors, (6820), 4 states have internal predecessors, (6820), 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) [2023-11-06 22:07:06,675 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1705.0) internal successors, (6820), 4 states have internal predecessors, (6820), 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) [2023-11-06 22:07:06,675 INFO L175 Difference]: Start difference. First operand has 128 places, 132 transitions, 269 flow. Second operand 3 states and 2330 transitions. [2023-11-06 22:07:06,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 170 transitions, 559 flow [2023-11-06 22:07:06,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 170 transitions, 559 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:07:06,681 INFO L231 Difference]: Finished difference. Result has 129 places, 134 transitions, 291 flow [2023-11-06 22:07:06,682 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1705, PETRI_DIFFERENCE_MINUEND_FLOW=267, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=291, PETRI_PLACES=129, PETRI_TRANSITIONS=134} [2023-11-06 22:07:06,683 INFO L281 CegarLoopForPetriNet]: 239 programPoint places, -110 predicate places. [2023-11-06 22:07:06,683 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 134 transitions, 291 flow [2023-11-06 22:07:06,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 744.0) internal successors, (2232), 3 states have internal predecessors, (2232), 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) [2023-11-06 22:07:06,686 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:07:06,686 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:07:06,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:07:06,686 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2023-11-06 22:07:06,687 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:06,687 INFO L85 PathProgramCache]: Analyzing trace with hash -270056119, now seen corresponding path program 1 times [2023-11-06 22:07:06,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:07:06,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766600780] [2023-11-06 22:07:06,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:06,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:07:06,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:06,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:07:06,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:07:06,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766600780] [2023-11-06 22:07:06,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766600780] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:07:06,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:07:06,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:07:06,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623497472] [2023-11-06 22:07:06,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:07:06,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:07:06,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:07:06,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:07:06,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:07:06,916 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 731 out of 1705 [2023-11-06 22:07:06,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 134 transitions, 291 flow. Second operand has 3 states, 3 states have (on average 734.6666666666666) internal successors, (2204), 3 states have internal predecessors, (2204), 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) [2023-11-06 22:07:06,921 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:07:06,921 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 731 of 1705 [2023-11-06 22:07:06,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:07:09,662 INFO L124 PetriNetUnfolderBase]: 7029/14938 cut-off events. [2023-11-06 22:07:09,663 INFO L125 PetriNetUnfolderBase]: For 2146/2146 co-relation queries the response was YES. [2023-11-06 22:07:09,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26861 conditions, 14938 events. 7029/14938 cut-off events. For 2146/2146 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 115991 event pairs, 5945 based on Foata normal form. 0/13253 useless extension candidates. Maximal degree in co-relation 26857. Up to 9940 conditions per place. [2023-11-06 22:07:09,808 INFO L140 encePairwiseOnDemand]: 1702/1705 looper letters, 67 selfloop transitions, 1 changer transitions 0/132 dead transitions. [2023-11-06 22:07:09,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 132 transitions, 423 flow [2023-11-06 22:07:09,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:07:09,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:07:09,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2261 transitions. [2023-11-06 22:07:09,822 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44203323558162266 [2023-11-06 22:07:09,822 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2261 transitions. [2023-11-06 22:07:09,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2261 transitions. [2023-11-06 22:07:09,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:07:09,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2261 transitions. [2023-11-06 22:07:09,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 753.6666666666666) internal successors, (2261), 3 states have internal predecessors, (2261), 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) [2023-11-06 22:07:09,854 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1705.0) internal successors, (6820), 4 states have internal predecessors, (6820), 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) [2023-11-06 22:07:09,860 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1705.0) internal successors, (6820), 4 states have internal predecessors, (6820), 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) [2023-11-06 22:07:09,861 INFO L175 Difference]: Start difference. First operand has 129 places, 134 transitions, 291 flow. Second operand 3 states and 2261 transitions. [2023-11-06 22:07:09,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 132 transitions, 423 flow [2023-11-06 22:07:09,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 132 transitions, 419 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:07:09,874 INFO L231 Difference]: Finished difference. Result has 128 places, 132 transitions, 285 flow [2023-11-06 22:07:09,875 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1705, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=285, PETRI_PLACES=128, PETRI_TRANSITIONS=132} [2023-11-06 22:07:09,876 INFO L281 CegarLoopForPetriNet]: 239 programPoint places, -111 predicate places. [2023-11-06 22:07:09,877 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 132 transitions, 285 flow [2023-11-06 22:07:09,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 734.6666666666666) internal successors, (2204), 3 states have internal predecessors, (2204), 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) [2023-11-06 22:07:09,879 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:07:09,880 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:07:09,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:07:09,880 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread3Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2023-11-06 22:07:09,881 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:09,881 INFO L85 PathProgramCache]: Analyzing trace with hash 868201280, now seen corresponding path program 1 times [2023-11-06 22:07:09,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:07:09,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647263494] [2023-11-06 22:07:09,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:09,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:07:09,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:10,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:07:10,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:07:10,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647263494] [2023-11-06 22:07:10,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647263494] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:07:10,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:07:10,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:07:10,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581094676] [2023-11-06 22:07:10,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:07:10,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:07:10,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:07:10,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:07:10,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:07:10,070 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 728 out of 1705 [2023-11-06 22:07:10,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 132 transitions, 285 flow. Second operand has 3 states, 3 states have (on average 732.3333333333334) internal successors, (2197), 3 states have internal predecessors, (2197), 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) [2023-11-06 22:07:10,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:07:10,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 728 of 1705 [2023-11-06 22:07:10,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:07:12,019 INFO L124 PetriNetUnfolderBase]: 7029/14911 cut-off events. [2023-11-06 22:07:12,019 INFO L125 PetriNetUnfolderBase]: For 1728/1728 co-relation queries the response was YES. [2023-11-06 22:07:12,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26659 conditions, 14911 events. 7029/14911 cut-off events. For 1728/1728 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 115569 event pairs, 5945 based on Foata normal form. 0/13227 useless extension candidates. Maximal degree in co-relation 26654. Up to 9934 conditions per place. [2023-11-06 22:07:12,118 INFO L140 encePairwiseOnDemand]: 1703/1705 looper letters, 67 selfloop transitions, 1 changer transitions 0/131 dead transitions. [2023-11-06 22:07:12,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 131 transitions, 419 flow [2023-11-06 22:07:12,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:07:12,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:07:12,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2251 transitions. [2023-11-06 22:07:12,128 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44007820136852394 [2023-11-06 22:07:12,128 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2251 transitions. [2023-11-06 22:07:12,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2251 transitions. [2023-11-06 22:07:12,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:07:12,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2251 transitions. [2023-11-06 22:07:12,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 750.3333333333334) internal successors, (2251), 3 states have internal predecessors, (2251), 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) [2023-11-06 22:07:12,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1705.0) internal successors, (6820), 4 states have internal predecessors, (6820), 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) [2023-11-06 22:07:12,155 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1705.0) internal successors, (6820), 4 states have internal predecessors, (6820), 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) [2023-11-06 22:07:12,155 INFO L175 Difference]: Start difference. First operand has 128 places, 132 transitions, 285 flow. Second operand 3 states and 2251 transitions. [2023-11-06 22:07:12,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 131 transitions, 419 flow [2023-11-06 22:07:12,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 131 transitions, 418 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:07:12,160 INFO L231 Difference]: Finished difference. Result has 128 places, 131 transitions, 284 flow [2023-11-06 22:07:12,160 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1705, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=284, PETRI_PLACES=128, PETRI_TRANSITIONS=131} [2023-11-06 22:07:12,161 INFO L281 CegarLoopForPetriNet]: 239 programPoint places, -111 predicate places. [2023-11-06 22:07:12,162 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 131 transitions, 284 flow [2023-11-06 22:07:12,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 732.3333333333334) internal successors, (2197), 3 states have internal predecessors, (2197), 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) [2023-11-06 22:07:12,163 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:07:12,163 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:07:12,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:07:12,164 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2023-11-06 22:07:12,164 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:12,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1824932723, now seen corresponding path program 1 times [2023-11-06 22:07:12,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:07:12,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141336125] [2023-11-06 22:07:12,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:12,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:07:12,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:12,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:07:12,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:07:12,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141336125] [2023-11-06 22:07:12,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141336125] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:07:12,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:07:12,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:07:12,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923414637] [2023-11-06 22:07:12,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:07:12,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:07:12,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:07:12,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:07:12,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:07:12,263 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 737 out of 1705 [2023-11-06 22:07:12,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 131 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 741.3333333333334) internal successors, (2224), 3 states have internal predecessors, (2224), 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) [2023-11-06 22:07:12,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:07:12,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 737 of 1705 [2023-11-06 22:07:12,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:07:15,378 INFO L124 PetriNetUnfolderBase]: 10393/19733 cut-off events. [2023-11-06 22:07:15,378 INFO L125 PetriNetUnfolderBase]: For 2240/2240 co-relation queries the response was YES. [2023-11-06 22:07:15,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37142 conditions, 19733 events. 10393/19733 cut-off events. For 2240/2240 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 147960 event pairs, 2959 based on Foata normal form. 0/17321 useless extension candidates. Maximal degree in co-relation 37137. Up to 9960 conditions per place. [2023-11-06 22:07:15,512 INFO L140 encePairwiseOnDemand]: 1701/1705 looper letters, 109 selfloop transitions, 2 changer transitions 0/172 dead transitions. [2023-11-06 22:07:15,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 172 transitions, 598 flow [2023-11-06 22:07:15,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:07:15,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:07:15,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2321 transitions. [2023-11-06 22:07:15,522 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45376344086021503 [2023-11-06 22:07:15,522 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2321 transitions. [2023-11-06 22:07:15,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2321 transitions. [2023-11-06 22:07:15,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:07:15,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2321 transitions. [2023-11-06 22:07:15,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 773.6666666666666) internal successors, (2321), 3 states have internal predecessors, (2321), 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) [2023-11-06 22:07:15,552 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1705.0) internal successors, (6820), 4 states have internal predecessors, (6820), 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) [2023-11-06 22:07:15,563 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1705.0) internal successors, (6820), 4 states have internal predecessors, (6820), 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) [2023-11-06 22:07:15,563 INFO L175 Difference]: Start difference. First operand has 128 places, 131 transitions, 284 flow. Second operand 3 states and 2321 transitions. [2023-11-06 22:07:15,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 172 transitions, 598 flow [2023-11-06 22:07:15,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 172 transitions, 597 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:07:15,569 INFO L231 Difference]: Finished difference. Result has 128 places, 131 transitions, 293 flow [2023-11-06 22:07:15,571 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1705, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=293, PETRI_PLACES=128, PETRI_TRANSITIONS=131} [2023-11-06 22:07:15,573 INFO L281 CegarLoopForPetriNet]: 239 programPoint places, -111 predicate places. [2023-11-06 22:07:15,575 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 131 transitions, 293 flow [2023-11-06 22:07:15,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 741.3333333333334) internal successors, (2224), 3 states have internal predecessors, (2224), 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) [2023-11-06 22:07:15,576 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:07:15,576 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:07:15,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:07:15,576 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2023-11-06 22:07:15,577 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:15,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1118797567, now seen corresponding path program 1 times [2023-11-06 22:07:15,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:07:15,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322528547] [2023-11-06 22:07:15,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:15,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:07:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:15,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:07:15,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:07:15,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322528547] [2023-11-06 22:07:15,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322528547] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:07:15,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:07:15,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:07:15,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538601238] [2023-11-06 22:07:15,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:07:15,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:07:15,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:07:15,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:07:15,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:07:15,704 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 737 out of 1705 [2023-11-06 22:07:15,706 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 131 transitions, 293 flow. Second operand has 3 states, 3 states have (on average 742.0) internal successors, (2226), 3 states have internal predecessors, (2226), 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) [2023-11-06 22:07:15,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:07:15,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 737 of 1705 [2023-11-06 22:07:15,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:07:18,196 INFO L124 PetriNetUnfolderBase]: 10646/21645 cut-off events. [2023-11-06 22:07:18,196 INFO L125 PetriNetUnfolderBase]: For 2846/2846 co-relation queries the response was YES. [2023-11-06 22:07:18,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40143 conditions, 21645 events. 10646/21645 cut-off events. For 2846/2846 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 173487 event pairs, 8812 based on Foata normal form. 0/18916 useless extension candidates. Maximal degree in co-relation 40138. Up to 15013 conditions per place. [2023-11-06 22:07:18,335 INFO L140 encePairwiseOnDemand]: 1703/1705 looper letters, 69 selfloop transitions, 1 changer transitions 0/130 dead transitions. [2023-11-06 22:07:18,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 130 transitions, 431 flow [2023-11-06 22:07:18,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:07:18,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:07:18,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2278 transitions. [2023-11-06 22:07:18,345 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44535679374389053 [2023-11-06 22:07:18,345 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2278 transitions. [2023-11-06 22:07:18,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2278 transitions. [2023-11-06 22:07:18,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:07:18,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2278 transitions. [2023-11-06 22:07:18,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 759.3333333333334) internal successors, (2278), 3 states have internal predecessors, (2278), 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) [2023-11-06 22:07:18,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1705.0) internal successors, (6820), 4 states have internal predecessors, (6820), 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) [2023-11-06 22:07:18,367 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1705.0) internal successors, (6820), 4 states have internal predecessors, (6820), 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) [2023-11-06 22:07:18,368 INFO L175 Difference]: Start difference. First operand has 128 places, 131 transitions, 293 flow. Second operand 3 states and 2278 transitions. [2023-11-06 22:07:18,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 130 transitions, 431 flow [2023-11-06 22:07:18,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 130 transitions, 431 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:07:18,372 INFO L231 Difference]: Finished difference. Result has 129 places, 130 transitions, 293 flow [2023-11-06 22:07:18,373 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1705, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=293, PETRI_PLACES=129, PETRI_TRANSITIONS=130} [2023-11-06 22:07:18,377 INFO L281 CegarLoopForPetriNet]: 239 programPoint places, -110 predicate places. [2023-11-06 22:07:18,377 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 130 transitions, 293 flow [2023-11-06 22:07:18,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 742.0) internal successors, (2226), 3 states have internal predecessors, (2226), 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) [2023-11-06 22:07:18,378 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:07:18,379 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:07:18,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:07:18,379 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2023-11-06 22:07:18,379 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:18,379 INFO L85 PathProgramCache]: Analyzing trace with hash 195974956, now seen corresponding path program 1 times [2023-11-06 22:07:18,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:07:18,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733021294] [2023-11-06 22:07:18,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:18,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:07:18,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:18,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:07:18,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:07:18,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733021294] [2023-11-06 22:07:18,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733021294] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:07:18,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:07:18,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:07:18,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332039623] [2023-11-06 22:07:18,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:07:18,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:07:18,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:07:18,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:07:18,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:07:19,790 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 713 out of 1705 [2023-11-06 22:07:19,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 130 transitions, 293 flow. Second operand has 6 states, 6 states have (on average 715.6666666666666) internal successors, (4294), 6 states have internal predecessors, (4294), 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) [2023-11-06 22:07:19,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:07:19,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 713 of 1705 [2023-11-06 22:07:19,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:07:26,945 INFO L124 PetriNetUnfolderBase]: 33642/51507 cut-off events. [2023-11-06 22:07:26,945 INFO L125 PetriNetUnfolderBase]: For 8249/8249 co-relation queries the response was YES. [2023-11-06 22:07:27,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106451 conditions, 51507 events. 33642/51507 cut-off events. For 8249/8249 co-relation queries the response was YES. Maximal size of possible extension queue 561. Compared 348218 event pairs, 3218 based on Foata normal form. 0/44673 useless extension candidates. Maximal degree in co-relation 106445. Up to 16646 conditions per place. [2023-11-06 22:07:27,320 INFO L140 encePairwiseOnDemand]: 1700/1705 looper letters, 258 selfloop transitions, 4 changer transitions 0/317 dead transitions. [2023-11-06 22:07:27,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 317 transitions, 1271 flow [2023-11-06 22:07:27,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:07:27,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:07:27,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4521 transitions. [2023-11-06 22:07:27,343 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44193548387096776 [2023-11-06 22:07:27,343 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4521 transitions. [2023-11-06 22:07:27,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4521 transitions. [2023-11-06 22:07:27,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:07:27,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4521 transitions. [2023-11-06 22:07:27,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 753.5) internal successors, (4521), 6 states have internal predecessors, (4521), 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) [2023-11-06 22:07:27,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1705.0) internal successors, (11935), 7 states have internal predecessors, (11935), 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) [2023-11-06 22:07:27,740 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1705.0) internal successors, (11935), 7 states have internal predecessors, (11935), 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) [2023-11-06 22:07:27,740 INFO L175 Difference]: Start difference. First operand has 129 places, 130 transitions, 293 flow. Second operand 6 states and 4521 transitions. [2023-11-06 22:07:27,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 317 transitions, 1271 flow [2023-11-06 22:07:27,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 317 transitions, 1270 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:07:27,750 INFO L231 Difference]: Finished difference. Result has 132 places, 129 transitions, 298 flow [2023-11-06 22:07:27,750 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1705, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=298, PETRI_PLACES=132, PETRI_TRANSITIONS=129} [2023-11-06 22:07:27,751 INFO L281 CegarLoopForPetriNet]: 239 programPoint places, -107 predicate places. [2023-11-06 22:07:27,751 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 129 transitions, 298 flow [2023-11-06 22:07:27,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 715.6666666666666) internal successors, (4294), 6 states have internal predecessors, (4294), 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) [2023-11-06 22:07:27,753 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:07:27,753 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:07:27,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:07:27,754 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2023-11-06 22:07:27,754 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:27,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1423482651, now seen corresponding path program 1 times [2023-11-06 22:07:27,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:07:27,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757193319] [2023-11-06 22:07:27,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:27,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:07:27,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:27,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:07:27,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:07:27,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757193319] [2023-11-06 22:07:27,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757193319] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:07:27,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:07:27,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:07:27,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809136121] [2023-11-06 22:07:27,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:07:27,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:07:27,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:07:27,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:07:27,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:07:27,839 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 734 out of 1705 [2023-11-06 22:07:27,842 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 129 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 739.6666666666666) internal successors, (2219), 3 states have internal predecessors, (2219), 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) [2023-11-06 22:07:27,842 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:07:27,842 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 734 of 1705 [2023-11-06 22:07:27,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:07:30,623 INFO L124 PetriNetUnfolderBase]: 11047/21433 cut-off events. [2023-11-06 22:07:30,623 INFO L125 PetriNetUnfolderBase]: For 4839/4839 co-relation queries the response was YES. [2023-11-06 22:07:30,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42679 conditions, 21433 events. 11047/21433 cut-off events. For 4839/4839 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 163668 event pairs, 2689 based on Foata normal form. 0/18751 useless extension candidates. Maximal degree in co-relation 42673. Up to 14792 conditions per place. [2023-11-06 22:07:30,768 INFO L140 encePairwiseOnDemand]: 1700/1705 looper letters, 92 selfloop transitions, 2 changer transitions 0/149 dead transitions. [2023-11-06 22:07:30,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 149 transitions, 538 flow [2023-11-06 22:07:30,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:07:30,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:07:30,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2294 transitions. [2023-11-06 22:07:30,778 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4484848484848485 [2023-11-06 22:07:30,778 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2294 transitions. [2023-11-06 22:07:30,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2294 transitions. [2023-11-06 22:07:30,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:07:30,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2294 transitions. [2023-11-06 22:07:30,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 764.6666666666666) internal successors, (2294), 3 states have internal predecessors, (2294), 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) [2023-11-06 22:07:30,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1705.0) internal successors, (6820), 4 states have internal predecessors, (6820), 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) [2023-11-06 22:07:30,799 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1705.0) internal successors, (6820), 4 states have internal predecessors, (6820), 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) [2023-11-06 22:07:30,800 INFO L175 Difference]: Start difference. First operand has 132 places, 129 transitions, 298 flow. Second operand 3 states and 2294 transitions. [2023-11-06 22:07:30,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 149 transitions, 538 flow [2023-11-06 22:07:30,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 149 transitions, 529 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 22:07:30,811 INFO L231 Difference]: Finished difference. Result has 128 places, 128 transitions, 299 flow [2023-11-06 22:07:30,811 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1705, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=299, PETRI_PLACES=128, PETRI_TRANSITIONS=128} [2023-11-06 22:07:30,812 INFO L281 CegarLoopForPetriNet]: 239 programPoint places, -111 predicate places. [2023-11-06 22:07:30,812 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 128 transitions, 299 flow [2023-11-06 22:07:30,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 739.6666666666666) internal successors, (2219), 3 states have internal predecessors, (2219), 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) [2023-11-06 22:07:30,813 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:07:30,813 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:07:30,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:07:30,814 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2023-11-06 22:07:30,814 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:30,814 INFO L85 PathProgramCache]: Analyzing trace with hash -47918381, now seen corresponding path program 1 times [2023-11-06 22:07:30,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:07:30,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688462638] [2023-11-06 22:07:30,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:30,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:07:30,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:31,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:07:31,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:07:31,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688462638] [2023-11-06 22:07:31,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688462638] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:07:31,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:07:31,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:07:31,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462097845] [2023-11-06 22:07:31,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:07:31,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:07:31,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:07:31,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:07:31,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:07:31,270 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 718 out of 1705 [2023-11-06 22:07:31,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 128 transitions, 299 flow. Second operand has 4 states, 4 states have (on average 721.5) internal successors, (2886), 4 states have internal predecessors, (2886), 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) [2023-11-06 22:07:31,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:07:31,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 718 of 1705 [2023-11-06 22:07:31,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:07:36,257 INFO L124 PetriNetUnfolderBase]: 14836/30292 cut-off events. [2023-11-06 22:07:36,257 INFO L125 PetriNetUnfolderBase]: For 4886/4886 co-relation queries the response was YES. [2023-11-06 22:07:36,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57107 conditions, 30292 events. 14836/30292 cut-off events. For 4886/4886 co-relation queries the response was YES. Maximal size of possible extension queue 356. Compared 247333 event pairs, 12191 based on Foata normal form. 410/26662 useless extension candidates. Maximal degree in co-relation 57101. Up to 15014 conditions per place. [2023-11-06 22:07:36,423 INFO L140 encePairwiseOnDemand]: 1701/1705 looper letters, 129 selfloop transitions, 3 changer transitions 0/188 dead transitions. [2023-11-06 22:07:36,423 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 188 transitions, 706 flow [2023-11-06 22:07:36,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:07:36,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:07:36,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 2996 transitions. [2023-11-06 22:07:36,435 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43929618768328443 [2023-11-06 22:07:36,435 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 2996 transitions. [2023-11-06 22:07:36,435 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 2996 transitions. [2023-11-06 22:07:36,438 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:07:36,438 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 2996 transitions. [2023-11-06 22:07:36,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 749.0) internal successors, (2996), 4 states have internal predecessors, (2996), 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) [2023-11-06 22:07:36,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1705.0) internal successors, (8525), 5 states have internal predecessors, (8525), 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) [2023-11-06 22:07:36,462 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1705.0) internal successors, (8525), 5 states have internal predecessors, (8525), 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) [2023-11-06 22:07:36,462 INFO L175 Difference]: Start difference. First operand has 128 places, 128 transitions, 299 flow. Second operand 4 states and 2996 transitions. [2023-11-06 22:07:36,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 188 transitions, 706 flow [2023-11-06 22:07:36,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 188 transitions, 706 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:07:36,470 INFO L231 Difference]: Finished difference. Result has 133 places, 130 transitions, 322 flow [2023-11-06 22:07:36,471 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1705, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=322, PETRI_PLACES=133, PETRI_TRANSITIONS=130} [2023-11-06 22:07:36,471 INFO L281 CegarLoopForPetriNet]: 239 programPoint places, -106 predicate places. [2023-11-06 22:07:36,472 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 130 transitions, 322 flow [2023-11-06 22:07:36,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 721.5) internal successors, (2886), 4 states have internal predecessors, (2886), 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) [2023-11-06 22:07:36,473 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:07:36,473 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:07:36,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:07:36,473 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2023-11-06 22:07:36,474 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:36,474 INFO L85 PathProgramCache]: Analyzing trace with hash -314187377, now seen corresponding path program 1 times [2023-11-06 22:07:36,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:07:36,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203749393] [2023-11-06 22:07:36,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:36,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:07:36,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:36,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:07:36,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:07:36,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203749393] [2023-11-06 22:07:36,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203749393] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:07:36,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:07:36,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:07:36,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008500324] [2023-11-06 22:07:36,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:07:36,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:07:36,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:07:36,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:07:36,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:07:36,951 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 718 out of 1705 [2023-11-06 22:07:36,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 130 transitions, 322 flow. Second operand has 4 states, 4 states have (on average 721.75) internal successors, (2887), 4 states have internal predecessors, (2887), 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) [2023-11-06 22:07:36,955 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:07:36,955 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 718 of 1705 [2023-11-06 22:07:36,955 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:07:43,043 INFO L124 PetriNetUnfolderBase]: 20134/43032 cut-off events. [2023-11-06 22:07:43,043 INFO L125 PetriNetUnfolderBase]: For 7549/7549 co-relation queries the response was YES. [2023-11-06 22:07:43,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80107 conditions, 43032 events. 20134/43032 cut-off events. For 7549/7549 co-relation queries the response was YES. Maximal size of possible extension queue 477. Compared 385353 event pairs, 17297 based on Foata normal form. 308/37971 useless extension candidates. Maximal degree in co-relation 80098. Up to 21245 conditions per place. [2023-11-06 22:07:43,306 INFO L140 encePairwiseOnDemand]: 1697/1705 looper letters, 124 selfloop transitions, 6 changer transitions 0/186 dead transitions. [2023-11-06 22:07:43,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 186 transitions, 714 flow [2023-11-06 22:07:43,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:07:43,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:07:43,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3711 transitions. [2023-11-06 22:07:43,322 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43530791788856305 [2023-11-06 22:07:43,323 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3711 transitions. [2023-11-06 22:07:43,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3711 transitions. [2023-11-06 22:07:43,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:07:43,326 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3711 transitions. [2023-11-06 22:07:43,336 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 742.2) internal successors, (3711), 5 states have internal predecessors, (3711), 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) [2023-11-06 22:07:43,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1705.0) internal successors, (10230), 6 states have internal predecessors, (10230), 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) [2023-11-06 22:07:43,355 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1705.0) internal successors, (10230), 6 states have internal predecessors, (10230), 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) [2023-11-06 22:07:43,355 INFO L175 Difference]: Start difference. First operand has 133 places, 130 transitions, 322 flow. Second operand 5 states and 3711 transitions. [2023-11-06 22:07:43,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 186 transitions, 714 flow [2023-11-06 22:07:43,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 186 transitions, 710 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-06 22:07:43,363 INFO L231 Difference]: Finished difference. Result has 139 places, 135 transitions, 366 flow [2023-11-06 22:07:43,364 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1705, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=366, PETRI_PLACES=139, PETRI_TRANSITIONS=135} [2023-11-06 22:07:43,365 INFO L281 CegarLoopForPetriNet]: 239 programPoint places, -100 predicate places. [2023-11-06 22:07:43,365 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 135 transitions, 366 flow [2023-11-06 22:07:43,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 721.75) internal successors, (2887), 4 states have internal predecessors, (2887), 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) [2023-11-06 22:07:43,367 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:07:43,367 INFO L208 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] [2023-11-06 22:07:43,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:07:43,367 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2023-11-06 22:07:43,368 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:43,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1086570365, now seen corresponding path program 1 times [2023-11-06 22:07:43,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:07:43,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066693444] [2023-11-06 22:07:43,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:43,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:07:43,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:44,225 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:07:44,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:07:44,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066693444] [2023-11-06 22:07:44,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066693444] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:07:44,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:07:44,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:07:44,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041844104] [2023-11-06 22:07:44,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:07:44,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:07:44,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:07:44,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:07:44,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:07:45,071 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 712 out of 1705 [2023-11-06 22:07:45,076 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 135 transitions, 366 flow. Second operand has 6 states, 6 states have (on average 715.5) internal successors, (4293), 6 states have internal predecessors, (4293), 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) [2023-11-06 22:07:45,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:07:45,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 712 of 1705 [2023-11-06 22:07:45,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:07:52,476 INFO L124 PetriNetUnfolderBase]: 22478/45974 cut-off events. [2023-11-06 22:07:52,476 INFO L125 PetriNetUnfolderBase]: For 10120/10120 co-relation queries the response was YES. [2023-11-06 22:07:52,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89160 conditions, 45974 events. 22478/45974 cut-off events. For 10120/10120 co-relation queries the response was YES. Maximal size of possible extension queue 493. Compared 399384 event pairs, 17297 based on Foata normal form. 0/42163 useless extension candidates. Maximal degree in co-relation 89148. Up to 29607 conditions per place. [2023-11-06 22:07:53,038 INFO L140 encePairwiseOnDemand]: 1699/1705 looper letters, 230 selfloop transitions, 5 changer transitions 0/286 dead transitions. [2023-11-06 22:07:53,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 286 transitions, 1186 flow [2023-11-06 22:07:53,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:07:53,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:07:53,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4495 transitions. [2023-11-06 22:07:53,054 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4393939393939394 [2023-11-06 22:07:53,055 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4495 transitions. [2023-11-06 22:07:53,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4495 transitions. [2023-11-06 22:07:53,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:07:53,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4495 transitions. [2023-11-06 22:07:53,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 749.1666666666666) internal successors, (4495), 6 states have internal predecessors, (4495), 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) [2023-11-06 22:07:53,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1705.0) internal successors, (11935), 7 states have internal predecessors, (11935), 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) [2023-11-06 22:07:53,088 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1705.0) internal successors, (11935), 7 states have internal predecessors, (11935), 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) [2023-11-06 22:07:53,088 INFO L175 Difference]: Start difference. First operand has 139 places, 135 transitions, 366 flow. Second operand 6 states and 4495 transitions. [2023-11-06 22:07:53,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 286 transitions, 1186 flow [2023-11-06 22:07:53,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 286 transitions, 1180 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-11-06 22:07:53,100 INFO L231 Difference]: Finished difference. Result has 142 places, 134 transitions, 368 flow [2023-11-06 22:07:53,100 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1705, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=368, PETRI_PLACES=142, PETRI_TRANSITIONS=134} [2023-11-06 22:07:53,101 INFO L281 CegarLoopForPetriNet]: 239 programPoint places, -97 predicate places. [2023-11-06 22:07:53,101 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 134 transitions, 368 flow [2023-11-06 22:07:53,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 715.5) internal successors, (4293), 6 states have internal predecessors, (4293), 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) [2023-11-06 22:07:53,102 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:07:53,102 INFO L208 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] [2023-11-06 22:07:53,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 22:07:53,103 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 221 more)] === [2023-11-06 22:07:53,103 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:07:53,103 INFO L85 PathProgramCache]: Analyzing trace with hash -835925125, now seen corresponding path program 1 times [2023-11-06 22:07:53,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:07:53,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778813249] [2023-11-06 22:07:53,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:07:53,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:07:53,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:07:53,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:07:53,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:07:53,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778813249] [2023-11-06 22:07:53,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778813249] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:07:53,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:07:53,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:07:53,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638395904] [2023-11-06 22:07:53,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:07:53,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:07:53,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:07:53,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:07:53,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:07:53,354 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 733 out of 1705 [2023-11-06 22:07:53,357 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 134 transitions, 368 flow. Second operand has 5 states, 5 states have (on average 736.4) internal successors, (3682), 5 states have internal predecessors, (3682), 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) [2023-11-06 22:07:53,357 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:07:53,357 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 733 of 1705 [2023-11-06 22:07:53,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand