./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2982d49-edbe-43a3-b2cb-760626c8f830/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2982d49-edbe-43a3-b2cb-760626c8f830/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_b2982d49-edbe-43a3-b2cb-760626c8f830/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2982d49-edbe-43a3-b2cb-760626c8f830/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2982d49-edbe-43a3-b2cb-760626c8f830/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_b2982d49-edbe-43a3-b2cb-760626c8f830/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 6727abf6d3311127e7c3f388ca276994a5a41bcb1f2faca3217c66ebe13b8b8f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:03:25,335 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:03:25,459 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2982d49-edbe-43a3-b2cb-760626c8f830/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 22:03:25,469 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:03:25,470 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:03:25,523 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:03:25,524 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:03:25,525 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:03:25,526 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:03:25,527 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:03:25,528 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:03:25,529 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:03:25,530 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:03:25,530 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:03:25,531 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:03:25,532 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:03:25,533 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:03:25,533 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:03:25,534 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:03:25,535 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:03:25,535 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:03:25,536 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:03:25,537 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 22:03:25,537 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:03:25,538 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:03:25,538 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:03:25,539 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:03:25,540 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:03:25,540 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:03:25,541 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:03:25,542 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:03:25,543 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:03:25,543 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:03:25,544 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:03:25,544 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:03:25,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:03:25,545 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:03:25,545 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:03:25,545 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:03:25,546 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:03:25,546 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:03:25,547 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_b2982d49-edbe-43a3-b2cb-760626c8f830/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2982d49-edbe-43a3-b2cb-760626c8f830/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6727abf6d3311127e7c3f388ca276994a5a41bcb1f2faca3217c66ebe13b8b8f [2023-11-06 22:03:25,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:03:25,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:03:25,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:03:25,923 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:03:25,924 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:03:25,926 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2982d49-edbe-43a3-b2cb-760626c8f830/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c [2023-11-06 22:03:29,260 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:03:29,507 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:03:29,508 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2982d49-edbe-43a3-b2cb-760626c8f830/sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c [2023-11-06 22:03:29,523 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2982d49-edbe-43a3-b2cb-760626c8f830/bin/uautomizer-verify-WvqO1wxjHP/data/0ec101a81/6010036bdf394c5fb635132f5bd57075/FLAG436d4055a [2023-11-06 22:03:29,546 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2982d49-edbe-43a3-b2cb-760626c8f830/bin/uautomizer-verify-WvqO1wxjHP/data/0ec101a81/6010036bdf394c5fb635132f5bd57075 [2023-11-06 22:03:29,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:03:29,560 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:03:29,565 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:03:29,565 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:03:29,572 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:03:29,577 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:03:29" (1/1) ... [2023-11-06 22:03:29,578 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ef720bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:29, skipping insertion in model container [2023-11-06 22:03:29,579 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:03:29" (1/1) ... [2023-11-06 22:03:29,625 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:03:29,968 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:03:29,986 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:03:30,054 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:03:30,074 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:03:30,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:30 WrapperNode [2023-11-06 22:03:30,074 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:03:30,076 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:03:30,076 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:03:30,076 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:03:30,086 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:30" (1/1) ... [2023-11-06 22:03:30,120 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:30" (1/1) ... [2023-11-06 22:03:30,173 INFO L138 Inliner]: procedures = 26, calls = 46, calls flagged for inlining = 16, calls inlined = 28, statements flattened = 414 [2023-11-06 22:03:30,174 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:03:30,175 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:03:30,175 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:03:30,175 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:03:30,188 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:30" (1/1) ... [2023-11-06 22:03:30,188 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:30" (1/1) ... [2023-11-06 22:03:30,198 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:30" (1/1) ... [2023-11-06 22:03:30,198 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:30" (1/1) ... [2023-11-06 22:03:30,227 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:30" (1/1) ... [2023-11-06 22:03:30,234 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:30" (1/1) ... [2023-11-06 22:03:30,238 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:30" (1/1) ... [2023-11-06 22:03:30,242 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:30" (1/1) ... [2023-11-06 22:03:30,249 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:03:30,250 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:03:30,250 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:03:30,251 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:03:30,265 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:30" (1/1) ... [2023-11-06 22:03:30,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:03:30,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2982d49-edbe-43a3-b2cb-760626c8f830/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:03:30,318 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2982d49-edbe-43a3-b2cb-760626c8f830/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:03:30,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2982d49-edbe-43a3-b2cb-760626c8f830/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:03:30,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:03:30,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:03:30,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:03:30,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:03:30,387 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 22:03:30,388 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 22:03:30,388 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 22:03:30,389 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 22:03:30,390 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-06 22:03:30,390 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-06 22:03:30,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:03:30,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:03:30,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:03:30,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:03:30,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:03:30,396 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 22:03:30,647 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:03:30,650 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:03:31,587 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:03:31,608 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:03:31,608 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-06 22:03:31,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:03:31 BoogieIcfgContainer [2023-11-06 22:03:31,612 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:03:31,615 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:03:31,615 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:03:31,619 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:03:31,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:03:29" (1/3) ... [2023-11-06 22:03:31,621 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58dbff53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:03:31, skipping insertion in model container [2023-11-06 22:03:31,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:30" (2/3) ... [2023-11-06 22:03:31,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58dbff53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:03:31, skipping insertion in model container [2023-11-06 22:03:31,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:03:31" (3/3) ... [2023-11-06 22:03:31,624 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-three-array-sum-alt.wvr.c [2023-11-06 22:03:31,634 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:03:31,646 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:03:31,647 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2023-11-06 22:03:31,647 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:03:31,865 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-06 22:03:31,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 526 places, 545 transitions, 1111 flow [2023-11-06 22:03:32,179 INFO L124 PetriNetUnfolderBase]: 29/542 cut-off events. [2023-11-06 22:03:32,180 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 22:03:32,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 555 conditions, 542 events. 29/542 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 936 event pairs, 0 based on Foata normal form. 0/476 useless extension candidates. Maximal degree in co-relation 337. Up to 2 conditions per place. [2023-11-06 22:03:32,197 INFO L82 GeneralOperation]: Start removeDead. Operand has 526 places, 545 transitions, 1111 flow [2023-11-06 22:03:32,217 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 476 places, 492 transitions, 1002 flow [2023-11-06 22:03:32,222 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:03:32,238 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 476 places, 492 transitions, 1002 flow [2023-11-06 22:03:32,241 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 476 places, 492 transitions, 1002 flow [2023-11-06 22:03:32,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 476 places, 492 transitions, 1002 flow [2023-11-06 22:03:32,387 INFO L124 PetriNetUnfolderBase]: 26/492 cut-off events. [2023-11-06 22:03:32,387 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 22:03:32,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 505 conditions, 492 events. 26/492 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 821 event pairs, 0 based on Foata normal form. 0/430 useless extension candidates. Maximal degree in co-relation 337. Up to 2 conditions per place. [2023-11-06 22:03:32,432 INFO L119 LiptonReduction]: Number of co-enabled transitions 48174 [2023-11-06 22:03:49,696 INFO L134 LiptonReduction]: Checked pairs total: 161671 [2023-11-06 22:03:49,696 INFO L136 LiptonReduction]: Total number of compositions: 502 [2023-11-06 22:03:49,716 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:03:49,725 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;@e88aaab, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:03:49,726 INFO L358 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2023-11-06 22:03:49,728 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:03:49,729 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 22:03:49,729 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:03:49,729 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:03:49,730 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 22:03:49,731 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-06 22:03:49,737 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:49,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1984, now seen corresponding path program 1 times [2023-11-06 22:03:49,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:49,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246656527] [2023-11-06 22:03:49,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:49,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:49,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:49,884 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 22:03:49,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:49,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246656527] [2023-11-06 22:03:49,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246656527] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:49,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:49,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 22:03:49,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242807904] [2023-11-06 22:03:49,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:49,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:03:49,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:49,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:03:49,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:03:49,946 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 515 out of 1047 [2023-11-06 22:03:49,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 126 transitions, 270 flow. Second operand has 2 states, 2 states have (on average 515.5) internal successors, (1031), 2 states have internal predecessors, (1031), 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 22:03:49,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:03:49,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 515 of 1047 [2023-11-06 22:03:49,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:03:51,042 INFO L124 PetriNetUnfolderBase]: 2010/5338 cut-off events. [2023-11-06 22:03:51,042 INFO L125 PetriNetUnfolderBase]: For 219/219 co-relation queries the response was YES. [2023-11-06 22:03:51,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8216 conditions, 5338 events. 2010/5338 cut-off events. For 219/219 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 46414 event pairs, 1368 based on Foata normal form. 947/5280 useless extension candidates. Maximal degree in co-relation 6817. Up to 2745 conditions per place. [2023-11-06 22:03:51,112 INFO L140 encePairwiseOnDemand]: 1023/1047 looper letters, 35 selfloop transitions, 0 changer transitions 1/102 dead transitions. [2023-11-06 22:03:51,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 102 transitions, 294 flow [2023-11-06 22:03:51,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:03:51,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:03:51,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1090 transitions. [2023-11-06 22:03:51,137 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5205348615090736 [2023-11-06 22:03:51,138 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1090 transitions. [2023-11-06 22:03:51,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1090 transitions. [2023-11-06 22:03:51,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:03:51,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1090 transitions. [2023-11-06 22:03:51,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 545.0) internal successors, (1090), 2 states have internal predecessors, (1090), 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 22:03:51,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1047.0) internal successors, (3141), 3 states have internal predecessors, (3141), 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 22:03:51,169 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1047.0) internal successors, (3141), 3 states have internal predecessors, (3141), 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 22:03:51,172 INFO L175 Difference]: Start difference. First operand has 127 places, 126 transitions, 270 flow. Second operand 2 states and 1090 transitions. [2023-11-06 22:03:51,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 102 transitions, 294 flow [2023-11-06 22:03:51,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 102 transitions, 282 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-06 22:03:51,187 INFO L231 Difference]: Finished difference. Result has 101 places, 101 transitions, 207 flow [2023-11-06 22:03:51,190 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1047, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=207, PETRI_PLACES=101, PETRI_TRANSITIONS=101} [2023-11-06 22:03:51,195 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -26 predicate places. [2023-11-06 22:03:51,196 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 101 transitions, 207 flow [2023-11-06 22:03:51,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 515.5) internal successors, (1031), 2 states have internal predecessors, (1031), 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 22:03:51,197 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:03:51,198 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:51,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:03:51,198 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-06 22:03:51,199 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:51,199 INFO L85 PathProgramCache]: Analyzing trace with hash -2072358737, now seen corresponding path program 1 times [2023-11-06 22:03:51,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:51,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856078835] [2023-11-06 22:03:51,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:51,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:51,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:51,447 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 22:03:51,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:51,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856078835] [2023-11-06 22:03:51,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856078835] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:51,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:51,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:03:51,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919616233] [2023-11-06 22:03:51,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:51,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:03:51,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:51,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:03:51,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:03:51,501 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 496 out of 1047 [2023-11-06 22:03:51,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 101 transitions, 207 flow. Second operand has 3 states, 3 states have (on average 498.3333333333333) internal successors, (1495), 3 states have internal predecessors, (1495), 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 22:03:51,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:03:51,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 496 of 1047 [2023-11-06 22:03:51,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:03:52,721 INFO L124 PetriNetUnfolderBase]: 2598/6599 cut-off events. [2023-11-06 22:03:52,722 INFO L125 PetriNetUnfolderBase]: For 84/84 co-relation queries the response was YES. [2023-11-06 22:03:52,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10352 conditions, 6599 events. 2598/6599 cut-off events. For 84/84 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 57455 event pairs, 2171 based on Foata normal form. 0/5695 useless extension candidates. Maximal degree in co-relation 10349. Up to 3707 conditions per place. [2023-11-06 22:03:52,805 INFO L140 encePairwiseOnDemand]: 1043/1047 looper letters, 37 selfloop transitions, 1 changer transitions 0/98 dead transitions. [2023-11-06 22:03:52,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 98 transitions, 277 flow [2023-11-06 22:03:52,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:03:52,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:03:52,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1529 transitions. [2023-11-06 22:03:52,814 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48678764724609996 [2023-11-06 22:03:52,814 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1529 transitions. [2023-11-06 22:03:52,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1529 transitions. [2023-11-06 22:03:52,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:03:52,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1529 transitions. [2023-11-06 22:03:52,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 509.6666666666667) internal successors, (1529), 3 states have internal predecessors, (1529), 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 22:03:52,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1047.0) internal successors, (4188), 4 states have internal predecessors, (4188), 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 22:03:52,838 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1047.0) internal successors, (4188), 4 states have internal predecessors, (4188), 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 22:03:52,839 INFO L175 Difference]: Start difference. First operand has 101 places, 101 transitions, 207 flow. Second operand 3 states and 1529 transitions. [2023-11-06 22:03:52,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 98 transitions, 277 flow [2023-11-06 22:03:52,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 98 transitions, 277 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:03:52,843 INFO L231 Difference]: Finished difference. Result has 99 places, 98 transitions, 203 flow [2023-11-06 22:03:52,844 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1047, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=203, PETRI_PLACES=99, PETRI_TRANSITIONS=98} [2023-11-06 22:03:52,862 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -28 predicate places. [2023-11-06 22:03:52,862 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 98 transitions, 203 flow [2023-11-06 22:03:52,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 498.3333333333333) internal successors, (1495), 3 states have internal predecessors, (1495), 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 22:03:52,872 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:03:52,872 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:52,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:03:52,873 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-06 22:03:52,876 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:52,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1328579449, now seen corresponding path program 1 times [2023-11-06 22:03:52,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:52,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768131774] [2023-11-06 22:03:52,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:52,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:52,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:53,081 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 22:03:53,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:53,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768131774] [2023-11-06 22:03:53,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768131774] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:53,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:53,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:03:53,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547084078] [2023-11-06 22:03:53,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:53,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:03:53,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:53,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:03:53,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:03:53,108 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 508 out of 1047 [2023-11-06 22:03:53,111 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 98 transitions, 203 flow. Second operand has 3 states, 3 states have (on average 510.6666666666667) internal successors, (1532), 3 states have internal predecessors, (1532), 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 22:03:53,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:03:53,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 508 of 1047 [2023-11-06 22:03:53,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:03:54,274 INFO L124 PetriNetUnfolderBase]: 2879/6479 cut-off events. [2023-11-06 22:03:54,274 INFO L125 PetriNetUnfolderBase]: For 75/75 co-relation queries the response was YES. [2023-11-06 22:03:54,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10489 conditions, 6479 events. 2879/6479 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 53656 event pairs, 423 based on Foata normal form. 0/5333 useless extension candidates. Maximal degree in co-relation 10485. Up to 3494 conditions per place. [2023-11-06 22:03:54,400 INFO L140 encePairwiseOnDemand]: 1043/1047 looper letters, 54 selfloop transitions, 2 changer transitions 0/115 dead transitions. [2023-11-06 22:03:54,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 115 transitions, 353 flow [2023-11-06 22:03:54,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:03:54,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:03:54,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1582 transitions. [2023-11-06 22:03:54,407 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5036612543775868 [2023-11-06 22:03:54,408 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1582 transitions. [2023-11-06 22:03:54,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1582 transitions. [2023-11-06 22:03:54,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:03:54,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1582 transitions. [2023-11-06 22:03:54,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 527.3333333333334) internal successors, (1582), 3 states have internal predecessors, (1582), 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 22:03:54,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1047.0) internal successors, (4188), 4 states have internal predecessors, (4188), 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 22:03:54,428 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1047.0) internal successors, (4188), 4 states have internal predecessors, (4188), 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 22:03:54,428 INFO L175 Difference]: Start difference. First operand has 99 places, 98 transitions, 203 flow. Second operand 3 states and 1582 transitions. [2023-11-06 22:03:54,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 115 transitions, 353 flow [2023-11-06 22:03:54,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 115 transitions, 352 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:03:54,433 INFO L231 Difference]: Finished difference. Result has 99 places, 98 transitions, 212 flow [2023-11-06 22:03:54,433 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1047, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=212, PETRI_PLACES=99, PETRI_TRANSITIONS=98} [2023-11-06 22:03:54,434 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -28 predicate places. [2023-11-06 22:03:54,435 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 98 transitions, 212 flow [2023-11-06 22:03:54,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 510.6666666666667) internal successors, (1532), 3 states have internal predecessors, (1532), 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 22:03:54,437 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:03:54,437 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:54,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:03:54,437 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-06 22:03:54,438 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:54,438 INFO L85 PathProgramCache]: Analyzing trace with hash -109923046, now seen corresponding path program 1 times [2023-11-06 22:03:54,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:54,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324430053] [2023-11-06 22:03:54,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:54,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:54,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:54,515 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 22:03:54,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:54,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324430053] [2023-11-06 22:03:54,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324430053] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:54,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:54,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:03:54,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571952054] [2023-11-06 22:03:54,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:54,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:03:54,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:54,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:03:54,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:03:54,534 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 508 out of 1047 [2023-11-06 22:03:54,537 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 98 transitions, 212 flow. Second operand has 3 states, 3 states have (on average 511.3333333333333) internal successors, (1534), 3 states have internal predecessors, (1534), 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 22:03:54,537 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:03:54,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 508 of 1047 [2023-11-06 22:03:54,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:03:55,830 INFO L124 PetriNetUnfolderBase]: 3496/7756 cut-off events. [2023-11-06 22:03:55,831 INFO L125 PetriNetUnfolderBase]: For 495/495 co-relation queries the response was YES. [2023-11-06 22:03:55,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13257 conditions, 7756 events. 3496/7756 cut-off events. For 495/495 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 65973 event pairs, 652 based on Foata normal form. 0/6466 useless extension candidates. Maximal degree in co-relation 13253. Up to 3997 conditions per place. [2023-11-06 22:03:55,901 INFO L140 encePairwiseOnDemand]: 1043/1047 looper letters, 58 selfloop transitions, 2 changer transitions 0/117 dead transitions. [2023-11-06 22:03:55,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 117 transitions, 383 flow [2023-11-06 22:03:55,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:03:55,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:03:55,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1582 transitions. [2023-11-06 22:03:55,909 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5036612543775868 [2023-11-06 22:03:55,909 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1582 transitions. [2023-11-06 22:03:55,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1582 transitions. [2023-11-06 22:03:55,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:03:55,912 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1582 transitions. [2023-11-06 22:03:55,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 527.3333333333334) internal successors, (1582), 3 states have internal predecessors, (1582), 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 22:03:55,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1047.0) internal successors, (4188), 4 states have internal predecessors, (4188), 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 22:03:55,932 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1047.0) internal successors, (4188), 4 states have internal predecessors, (4188), 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 22:03:55,932 INFO L175 Difference]: Start difference. First operand has 99 places, 98 transitions, 212 flow. Second operand 3 states and 1582 transitions. [2023-11-06 22:03:55,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 117 transitions, 383 flow [2023-11-06 22:03:55,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 117 transitions, 383 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:03:55,937 INFO L231 Difference]: Finished difference. Result has 100 places, 98 transitions, 222 flow [2023-11-06 22:03:55,937 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1047, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=100, PETRI_TRANSITIONS=98} [2023-11-06 22:03:55,940 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -27 predicate places. [2023-11-06 22:03:55,940 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 98 transitions, 222 flow [2023-11-06 22:03:55,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 511.3333333333333) internal successors, (1534), 3 states have internal predecessors, (1534), 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 22:03:55,942 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:03:55,942 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:55,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:03:55,943 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-06 22:03:55,943 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:55,944 INFO L85 PathProgramCache]: Analyzing trace with hash 2028943313, now seen corresponding path program 1 times [2023-11-06 22:03:55,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:55,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554184492] [2023-11-06 22:03:55,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:55,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:56,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:56,575 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 22:03:56,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:56,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554184492] [2023-11-06 22:03:56,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554184492] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:56,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:56,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:03:56,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642969457] [2023-11-06 22:03:56,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:56,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:03:56,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:56,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:03:56,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:03:57,467 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 489 out of 1047 [2023-11-06 22:03:57,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 98 transitions, 222 flow. Second operand has 6 states, 6 states have (on average 491.5) internal successors, (2949), 6 states have internal predecessors, (2949), 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 22:03:57,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:03:57,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 489 of 1047 [2023-11-06 22:03:57,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:04:02,159 INFO L124 PetriNetUnfolderBase]: 19252/30590 cut-off events. [2023-11-06 22:04:02,159 INFO L125 PetriNetUnfolderBase]: For 3095/3095 co-relation queries the response was YES. [2023-11-06 22:04:02,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60227 conditions, 30590 events. 19252/30590 cut-off events. For 3095/3095 co-relation queries the response was YES. Maximal size of possible extension queue 1005. Compared 233273 event pairs, 4795 based on Foata normal form. 0/24296 useless extension candidates. Maximal degree in co-relation 60222. Up to 13788 conditions per place. [2023-11-06 22:04:02,651 INFO L140 encePairwiseOnDemand]: 1037/1047 looper letters, 135 selfloop transitions, 21 changer transitions 0/206 dead transitions. [2023-11-06 22:04:02,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 206 transitions, 812 flow [2023-11-06 22:04:02,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:04:02,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:04:02,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3076 transitions. [2023-11-06 22:04:02,665 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48965297675899394 [2023-11-06 22:04:02,666 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3076 transitions. [2023-11-06 22:04:02,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3076 transitions. [2023-11-06 22:04:02,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:04:02,670 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3076 transitions. [2023-11-06 22:04:02,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 512.6666666666666) internal successors, (3076), 6 states have internal predecessors, (3076), 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 22:04:02,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1047.0) internal successors, (7329), 7 states have internal predecessors, (7329), 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 22:04:02,702 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1047.0) internal successors, (7329), 7 states have internal predecessors, (7329), 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 22:04:02,702 INFO L175 Difference]: Start difference. First operand has 100 places, 98 transitions, 222 flow. Second operand 6 states and 3076 transitions. [2023-11-06 22:04:02,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 206 transitions, 812 flow [2023-11-06 22:04:02,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 206 transitions, 812 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:04:02,712 INFO L231 Difference]: Finished difference. Result has 110 places, 118 transitions, 364 flow [2023-11-06 22:04:02,712 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1047, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=364, PETRI_PLACES=110, PETRI_TRANSITIONS=118} [2023-11-06 22:04:02,715 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -17 predicate places. [2023-11-06 22:04:02,715 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 118 transitions, 364 flow [2023-11-06 22:04:02,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 491.5) internal successors, (2949), 6 states have internal predecessors, (2949), 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 22:04:02,717 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:04:02,717 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:02,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:04:02,717 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-06 22:04:02,718 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:02,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1351400867, now seen corresponding path program 1 times [2023-11-06 22:04:02,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:02,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813539625] [2023-11-06 22:04:02,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:02,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:02,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:02,899 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 22:04:02,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:04:02,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813539625] [2023-11-06 22:04:02,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813539625] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:02,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:02,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:04:02,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194209586] [2023-11-06 22:04:02,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:02,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:04:02,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:04:02,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:04:02,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:04:03,174 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 491 out of 1047 [2023-11-06 22:04:03,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 118 transitions, 364 flow. Second operand has 5 states, 5 states have (on average 492.6) internal successors, (2463), 5 states have internal predecessors, (2463), 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 22:04:03,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:04:03,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 491 of 1047 [2023-11-06 22:04:03,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:04:07,131 INFO L124 PetriNetUnfolderBase]: 10674/25902 cut-off events. [2023-11-06 22:04:07,131 INFO L125 PetriNetUnfolderBase]: For 2811/2931 co-relation queries the response was YES. [2023-11-06 22:04:07,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48253 conditions, 25902 events. 10674/25902 cut-off events. For 2811/2931 co-relation queries the response was YES. Maximal size of possible extension queue 743. Compared 273203 event pairs, 4754 based on Foata normal form. 0/22489 useless extension candidates. Maximal degree in co-relation 48243. Up to 8562 conditions per place. [2023-11-06 22:04:07,418 INFO L140 encePairwiseOnDemand]: 1037/1047 looper letters, 84 selfloop transitions, 12 changer transitions 0/175 dead transitions. [2023-11-06 22:04:07,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 175 transitions, 697 flow [2023-11-06 22:04:07,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:04:07,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:04:07,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3038 transitions. [2023-11-06 22:04:07,429 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4836039477873289 [2023-11-06 22:04:07,430 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3038 transitions. [2023-11-06 22:04:07,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3038 transitions. [2023-11-06 22:04:07,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:04:07,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3038 transitions. [2023-11-06 22:04:07,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 506.3333333333333) internal successors, (3038), 6 states have internal predecessors, (3038), 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 22:04:07,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1047.0) internal successors, (7329), 7 states have internal predecessors, (7329), 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 22:04:07,474 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1047.0) internal successors, (7329), 7 states have internal predecessors, (7329), 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 22:04:07,475 INFO L175 Difference]: Start difference. First operand has 110 places, 118 transitions, 364 flow. Second operand 6 states and 3038 transitions. [2023-11-06 22:04:07,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 175 transitions, 697 flow [2023-11-06 22:04:07,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 175 transitions, 697 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:04:07,581 INFO L231 Difference]: Finished difference. Result has 119 places, 128 transitions, 446 flow [2023-11-06 22:04:07,582 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1047, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=446, PETRI_PLACES=119, PETRI_TRANSITIONS=128} [2023-11-06 22:04:07,584 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -8 predicate places. [2023-11-06 22:04:07,588 INFO L495 AbstractCegarLoop]: Abstraction has has 119 places, 128 transitions, 446 flow [2023-11-06 22:04:07,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 492.6) internal successors, (2463), 5 states have internal predecessors, (2463), 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 22:04:07,589 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:04:07,589 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:07,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:04:07,590 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-06 22:04:07,590 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:07,590 INFO L85 PathProgramCache]: Analyzing trace with hash -534483522, now seen corresponding path program 1 times [2023-11-06 22:04:07,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:07,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438129095] [2023-11-06 22:04:07,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:07,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:07,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:07,865 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 22:04:07,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:04:07,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438129095] [2023-11-06 22:04:07,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438129095] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:07,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:07,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:04:07,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133918827] [2023-11-06 22:04:07,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:07,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:04:07,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:04:07,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:04:07,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:04:08,187 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 491 out of 1047 [2023-11-06 22:04:08,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 128 transitions, 446 flow. Second operand has 5 states, 5 states have (on average 493.0) internal successors, (2465), 5 states have internal predecessors, (2465), 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 22:04:08,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:04:08,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 491 of 1047 [2023-11-06 22:04:08,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:04:11,423 INFO L124 PetriNetUnfolderBase]: 8157/20330 cut-off events. [2023-11-06 22:04:11,423 INFO L125 PetriNetUnfolderBase]: For 3781/4119 co-relation queries the response was YES. [2023-11-06 22:04:11,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40028 conditions, 20330 events. 8157/20330 cut-off events. For 3781/4119 co-relation queries the response was YES. Maximal size of possible extension queue 560. Compared 208353 event pairs, 4167 based on Foata normal form. 245/18044 useless extension candidates. Maximal degree in co-relation 40013. Up to 8632 conditions per place. [2023-11-06 22:04:11,635 INFO L140 encePairwiseOnDemand]: 1037/1047 looper letters, 76 selfloop transitions, 12 changer transitions 0/168 dead transitions. [2023-11-06 22:04:11,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 168 transitions, 723 flow [2023-11-06 22:04:11,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:04:11,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:04:11,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3030 transitions. [2023-11-06 22:04:11,648 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48233046800382046 [2023-11-06 22:04:11,648 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3030 transitions. [2023-11-06 22:04:11,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3030 transitions. [2023-11-06 22:04:11,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:04:11,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3030 transitions. [2023-11-06 22:04:11,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 505.0) internal successors, (3030), 6 states have internal predecessors, (3030), 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 22:04:11,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1047.0) internal successors, (7329), 7 states have internal predecessors, (7329), 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 22:04:11,676 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1047.0) internal successors, (7329), 7 states have internal predecessors, (7329), 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 22:04:11,676 INFO L175 Difference]: Start difference. First operand has 119 places, 128 transitions, 446 flow. Second operand 6 states and 3030 transitions. [2023-11-06 22:04:11,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 168 transitions, 723 flow [2023-11-06 22:04:11,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 168 transitions, 723 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:04:11,752 INFO L231 Difference]: Finished difference. Result has 126 places, 130 transitions, 486 flow [2023-11-06 22:04:11,753 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1047, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=486, PETRI_PLACES=126, PETRI_TRANSITIONS=130} [2023-11-06 22:04:11,754 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -1 predicate places. [2023-11-06 22:04:11,754 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 130 transitions, 486 flow [2023-11-06 22:04:11,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 493.0) internal successors, (2465), 5 states have internal predecessors, (2465), 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 22:04:11,755 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:04:11,756 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:11,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:04:11,756 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-06 22:04:11,757 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:11,757 INFO L85 PathProgramCache]: Analyzing trace with hash -149964145, now seen corresponding path program 1 times [2023-11-06 22:04:11,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:11,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643881228] [2023-11-06 22:04:11,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:11,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:12,198 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 22:04:12,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:04:12,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643881228] [2023-11-06 22:04:12,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643881228] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:12,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:12,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:04:12,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252841197] [2023-11-06 22:04:12,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:12,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:04:12,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:04:12,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:04:12,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:04:12,511 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 491 out of 1047 [2023-11-06 22:04:12,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 130 transitions, 486 flow. Second operand has 5 states, 5 states have (on average 493.6) internal successors, (2468), 5 states have internal predecessors, (2468), 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 22:04:12,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:04:12,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 491 of 1047 [2023-11-06 22:04:12,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:04:14,953 INFO L124 PetriNetUnfolderBase]: 7348/16788 cut-off events. [2023-11-06 22:04:14,953 INFO L125 PetriNetUnfolderBase]: For 3753/3861 co-relation queries the response was YES. [2023-11-06 22:04:15,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35092 conditions, 16788 events. 7348/16788 cut-off events. For 3753/3861 co-relation queries the response was YES. Maximal size of possible extension queue 496. Compared 159035 event pairs, 3840 based on Foata normal form. 33/14188 useless extension candidates. Maximal degree in co-relation 35074. Up to 8992 conditions per place. [2023-11-06 22:04:15,284 INFO L140 encePairwiseOnDemand]: 1037/1047 looper letters, 56 selfloop transitions, 12 changer transitions 0/149 dead transitions. [2023-11-06 22:04:15,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 149 transitions, 675 flow [2023-11-06 22:04:15,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:04:15,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:04:15,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3012 transitions. [2023-11-06 22:04:15,308 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4794651384909265 [2023-11-06 22:04:15,308 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3012 transitions. [2023-11-06 22:04:15,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3012 transitions. [2023-11-06 22:04:15,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:04:15,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3012 transitions. [2023-11-06 22:04:15,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 502.0) internal successors, (3012), 6 states have internal predecessors, (3012), 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 22:04:15,336 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1047.0) internal successors, (7329), 7 states have internal predecessors, (7329), 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 22:04:15,338 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1047.0) internal successors, (7329), 7 states have internal predecessors, (7329), 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 22:04:15,339 INFO L175 Difference]: Start difference. First operand has 126 places, 130 transitions, 486 flow. Second operand 6 states and 3012 transitions. [2023-11-06 22:04:15,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 149 transitions, 675 flow [2023-11-06 22:04:15,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 149 transitions, 657 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 22:04:15,379 INFO L231 Difference]: Finished difference. Result has 130 places, 132 transitions, 508 flow [2023-11-06 22:04:15,379 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1047, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=508, PETRI_PLACES=130, PETRI_TRANSITIONS=132} [2023-11-06 22:04:15,383 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, 3 predicate places. [2023-11-06 22:04:15,383 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 132 transitions, 508 flow [2023-11-06 22:04:15,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 493.6) internal successors, (2468), 5 states have internal predecessors, (2468), 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 22:04:15,384 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:04:15,384 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:15,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:04:15,385 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-06 22:04:15,385 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:15,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1110808724, now seen corresponding path program 1 times [2023-11-06 22:04:15,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:15,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367467047] [2023-11-06 22:04:15,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:15,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:15,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:16,034 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:04:16,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:04:16,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367467047] [2023-11-06 22:04:16,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367467047] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:16,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:16,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:04:16,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227890738] [2023-11-06 22:04:16,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:16,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:04:16,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:04:16,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:04:16,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:04:16,724 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 488 out of 1047 [2023-11-06 22:04:16,728 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 132 transitions, 508 flow. Second operand has 6 states, 6 states have (on average 490.6666666666667) internal successors, (2944), 6 states have internal predecessors, (2944), 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 22:04:16,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:04:16,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 488 of 1047 [2023-11-06 22:04:16,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:04:23,118 INFO L124 PetriNetUnfolderBase]: 21107/38293 cut-off events. [2023-11-06 22:04:23,118 INFO L125 PetriNetUnfolderBase]: For 12620/12942 co-relation queries the response was YES. [2023-11-06 22:04:23,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88326 conditions, 38293 events. 21107/38293 cut-off events. For 12620/12942 co-relation queries the response was YES. Maximal size of possible extension queue 1178. Compared 342700 event pairs, 6962 based on Foata normal form. 22/32516 useless extension candidates. Maximal degree in co-relation 88306. Up to 21473 conditions per place. [2023-11-06 22:04:23,757 INFO L140 encePairwiseOnDemand]: 1037/1047 looper letters, 155 selfloop transitions, 85 changer transitions 0/296 dead transitions. [2023-11-06 22:04:23,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 296 transitions, 1672 flow [2023-11-06 22:04:23,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:04:23,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:04:23,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3070 transitions. [2023-11-06 22:04:23,773 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48869786692136263 [2023-11-06 22:04:23,773 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3070 transitions. [2023-11-06 22:04:23,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3070 transitions. [2023-11-06 22:04:23,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:04:23,779 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3070 transitions. [2023-11-06 22:04:23,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 511.6666666666667) internal successors, (3070), 6 states have internal predecessors, (3070), 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 22:04:23,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1047.0) internal successors, (7329), 7 states have internal predecessors, (7329), 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 22:04:23,812 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1047.0) internal successors, (7329), 7 states have internal predecessors, (7329), 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 22:04:23,813 INFO L175 Difference]: Start difference. First operand has 130 places, 132 transitions, 508 flow. Second operand 6 states and 3070 transitions. [2023-11-06 22:04:23,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 296 transitions, 1672 flow [2023-11-06 22:04:23,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 296 transitions, 1654 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 22:04:23,897 INFO L231 Difference]: Finished difference. Result has 136 places, 216 transitions, 1254 flow [2023-11-06 22:04:23,897 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1047, PETRI_DIFFERENCE_MINUEND_FLOW=490, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1254, PETRI_PLACES=136, PETRI_TRANSITIONS=216} [2023-11-06 22:04:23,898 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, 9 predicate places. [2023-11-06 22:04:23,899 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 216 transitions, 1254 flow [2023-11-06 22:04:23,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 490.6666666666667) internal successors, (2944), 6 states have internal predecessors, (2944), 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 22:04:23,900 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:04:23,900 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 22:04:23,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:04:23,901 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-06 22:04:23,901 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:23,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1253668083, now seen corresponding path program 1 times [2023-11-06 22:04:23,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:23,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519239455] [2023-11-06 22:04:23,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:23,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:23,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:24,480 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:04:24,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:04:24,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519239455] [2023-11-06 22:04:24,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519239455] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:24,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:24,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:04:24,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533104487] [2023-11-06 22:04:24,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:24,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:04:24,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:04:24,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:04:24,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:04:25,184 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 488 out of 1047 [2023-11-06 22:04:25,187 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 216 transitions, 1254 flow. Second operand has 6 states, 6 states have (on average 491.0) internal successors, (2946), 6 states have internal predecessors, (2946), 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 22:04:25,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:04:25,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 488 of 1047 [2023-11-06 22:04:25,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:04:35,847 INFO L124 PetriNetUnfolderBase]: 34607/64452 cut-off events. [2023-11-06 22:04:35,848 INFO L125 PetriNetUnfolderBase]: For 41864/44791 co-relation queries the response was YES. [2023-11-06 22:04:36,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164233 conditions, 64452 events. 34607/64452 cut-off events. For 41864/44791 co-relation queries the response was YES. Maximal size of possible extension queue 1974. Compared 629715 event pairs, 9334 based on Foata normal form. 874/57301 useless extension candidates. Maximal degree in co-relation 164209. Up to 35986 conditions per place. [2023-11-06 22:04:36,576 INFO L140 encePairwiseOnDemand]: 1037/1047 looper letters, 244 selfloop transitions, 405 changer transitions 0/708 dead transitions. [2023-11-06 22:04:36,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 708 transitions, 6196 flow [2023-11-06 22:04:36,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:04:36,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:04:36,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3070 transitions. [2023-11-06 22:04:36,590 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48869786692136263 [2023-11-06 22:04:36,590 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3070 transitions. [2023-11-06 22:04:36,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3070 transitions. [2023-11-06 22:04:36,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:04:36,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3070 transitions. [2023-11-06 22:04:36,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 511.6666666666667) internal successors, (3070), 6 states have internal predecessors, (3070), 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 22:04:36,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1047.0) internal successors, (7329), 7 states have internal predecessors, (7329), 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 22:04:36,619 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1047.0) internal successors, (7329), 7 states have internal predecessors, (7329), 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 22:04:36,619 INFO L175 Difference]: Start difference. First operand has 136 places, 216 transitions, 1254 flow. Second operand 6 states and 3070 transitions. [2023-11-06 22:04:36,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 708 transitions, 6196 flow [2023-11-06 22:04:36,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 708 transitions, 6196 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:04:36,835 INFO L231 Difference]: Finished difference. Result has 145 places, 620 transitions, 6050 flow [2023-11-06 22:04:36,836 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1047, PETRI_DIFFERENCE_MINUEND_FLOW=1254, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=6050, PETRI_PLACES=145, PETRI_TRANSITIONS=620} [2023-11-06 22:04:36,837 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, 18 predicate places. [2023-11-06 22:04:36,837 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 620 transitions, 6050 flow [2023-11-06 22:04:36,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 491.0) internal successors, (2946), 6 states have internal predecessors, (2946), 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 22:04:36,838 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:04:36,838 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 22:04:36,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:04:36,839 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread3Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-06 22:04:36,839 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:36,839 INFO L85 PathProgramCache]: Analyzing trace with hash -969849056, now seen corresponding path program 1 times [2023-11-06 22:04:36,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:36,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798185375] [2023-11-06 22:04:36,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:36,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:36,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:37,334 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:04:37,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:04:37,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798185375] [2023-11-06 22:04:37,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798185375] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:37,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:37,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:04:37,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521722147] [2023-11-06 22:04:37,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:37,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:04:37,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:04:37,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:04:37,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:04:38,050 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 488 out of 1047 [2023-11-06 22:04:38,052 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 620 transitions, 6050 flow. Second operand has 6 states, 6 states have (on average 491.3333333333333) internal successors, (2948), 6 states have internal predecessors, (2948), 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 22:04:38,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:04:38,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 488 of 1047 [2023-11-06 22:04:38,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:04:48,748 INFO L124 PetriNetUnfolderBase]: 29147/54832 cut-off events. [2023-11-06 22:04:48,749 INFO L125 PetriNetUnfolderBase]: For 59519/63729 co-relation queries the response was YES. [2023-11-06 22:04:49,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161343 conditions, 54832 events. 29147/54832 cut-off events. For 59519/63729 co-relation queries the response was YES. Maximal size of possible extension queue 1825. Compared 534060 event pairs, 6079 based on Foata normal form. 1556/49765 useless extension candidates. Maximal degree in co-relation 161314. Up to 24185 conditions per place.