./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version cf1a7837 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_9e2ab292-2a92-4328-97c8-1daca98c0bca/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2ab292-2a92-4328-97c8-1daca98c0bca/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2ab292-2a92-4328-97c8-1daca98c0bca/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2ab292-2a92-4328-97c8-1daca98c0bca/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2ab292-2a92-4328-97c8-1daca98c0bca/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2ab292-2a92-4328-97c8-1daca98c0bca/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2a508120cc7913f10b79dda7ca65a8b88f829725798d520aee5d1c1d04a1fc13 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:17:13,952 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:17:14,042 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2ab292-2a92-4328-97c8-1daca98c0bca/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-12 02:17:14,047 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:17:14,047 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:17:14,072 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:17:14,073 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:17:14,074 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:17:14,075 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:17:14,075 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:17:14,076 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:17:14,077 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:17:14,078 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:17:14,078 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:17:14,079 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:17:14,079 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:17:14,080 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:17:14,081 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:17:14,081 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:17:14,082 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:17:14,082 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:17:14,083 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:17:14,083 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 02:17:14,084 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:17:14,084 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:17:14,085 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:17:14,085 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:17:14,086 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:17:14,086 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:17:14,087 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:17:14,087 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:17:14,087 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:17:14,088 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:17:14,088 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:17:14,089 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:17:14,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:17:14,089 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:17:14,089 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:17:14,090 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:17:14,090 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:17:14,090 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:17:14,091 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_9e2ab292-2a92-4328-97c8-1daca98c0bca/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2ab292-2a92-4328-97c8-1daca98c0bca/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a508120cc7913f10b79dda7ca65a8b88f829725798d520aee5d1c1d04a1fc13 [2023-11-12 02:17:14,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:17:14,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:17:14,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:17:14,414 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:17:14,415 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:17:14,416 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2ab292-2a92-4328-97c8-1daca98c0bca/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c [2023-11-12 02:17:17,609 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:17:17,958 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:17:17,958 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2ab292-2a92-4328-97c8-1daca98c0bca/sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c [2023-11-12 02:17:17,970 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2ab292-2a92-4328-97c8-1daca98c0bca/bin/uautomizer-verify-uTZkv6EMXl/data/a18cd5ff2/351dacbd8ee04cbea259c5055e73eb78/FLAG51c7e60a8 [2023-11-12 02:17:17,989 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2ab292-2a92-4328-97c8-1daca98c0bca/bin/uautomizer-verify-uTZkv6EMXl/data/a18cd5ff2/351dacbd8ee04cbea259c5055e73eb78 [2023-11-12 02:17:17,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:17:17,997 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:17:18,003 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:17:18,006 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:17:18,011 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:17:18,012 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:17:17" (1/1) ... [2023-11-12 02:17:18,013 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e5a7991 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:18, skipping insertion in model container [2023-11-12 02:17:18,014 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:17:17" (1/1) ... [2023-11-12 02:17:18,044 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:17:18,281 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:17:18,292 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:17:18,329 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:17:18,346 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:17:18,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:18 WrapperNode [2023-11-12 02:17:18,346 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:17:18,348 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:17:18,348 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:17:18,348 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:17:18,356 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:18" (1/1) ... [2023-11-12 02:17:18,367 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:18" (1/1) ... [2023-11-12 02:17:18,415 INFO L138 Inliner]: procedures = 23, calls = 32, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 347 [2023-11-12 02:17:18,416 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:17:18,416 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:17:18,416 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:17:18,416 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:17:18,444 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:18" (1/1) ... [2023-11-12 02:17:18,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:18" (1/1) ... [2023-11-12 02:17:18,455 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:18" (1/1) ... [2023-11-12 02:17:18,456 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:18" (1/1) ... [2023-11-12 02:17:18,498 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:18" (1/1) ... [2023-11-12 02:17:18,502 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:18" (1/1) ... [2023-11-12 02:17:18,504 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:18" (1/1) ... [2023-11-12 02:17:18,507 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:18" (1/1) ... [2023-11-12 02:17:18,512 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:17:18,513 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:17:18,513 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:17:18,513 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:17:18,514 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:18" (1/1) ... [2023-11-12 02:17:18,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:17:18,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2ab292-2a92-4328-97c8-1daca98c0bca/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:17:18,552 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2ab292-2a92-4328-97c8-1daca98c0bca/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:17:18,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2ab292-2a92-4328-97c8-1daca98c0bca/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:17:18,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:17:18,608 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-12 02:17:18,609 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-12 02:17:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-12 02:17:18,609 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-12 02:17:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-12 02:17:18,610 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-12 02:17:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:17:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:17:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:17:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:17:18,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:17:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:17:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:17:18,615 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:17:18,777 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:17:18,779 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:17:19,512 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:17:19,530 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:17:19,530 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:17:19,533 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:17:19 BoogieIcfgContainer [2023-11-12 02:17:19,533 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:17:19,537 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:17:19,537 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:17:19,541 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:17:19,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:17:17" (1/3) ... [2023-11-12 02:17:19,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f1b5bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:17:19, skipping insertion in model container [2023-11-12 02:17:19,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:18" (2/3) ... [2023-11-12 02:17:19,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71f1b5bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:17:19, skipping insertion in model container [2023-11-12 02:17:19,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:17:19" (3/3) ... [2023-11-12 02:17:19,544 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-exp-term-subst.wvr.c [2023-11-12 02:17:19,554 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:17:19,567 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:17:19,567 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 47 error locations. [2023-11-12 02:17:19,567 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:17:19,717 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-12 02:17:19,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 440 places, 457 transitions, 935 flow [2023-11-12 02:17:19,971 INFO L124 PetriNetUnfolderBase]: 27/454 cut-off events. [2023-11-12 02:17:19,972 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-12 02:17:19,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 467 conditions, 454 events. 27/454 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1469 event pairs, 0 based on Foata normal form. 0/380 useless extension candidates. Maximal degree in co-relation 317. Up to 2 conditions per place. [2023-11-12 02:17:19,992 INFO L82 GeneralOperation]: Start removeDead. Operand has 440 places, 457 transitions, 935 flow [2023-11-12 02:17:20,013 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 413 places, 428 transitions, 874 flow [2023-11-12 02:17:20,016 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:17:20,058 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 413 places, 428 transitions, 874 flow [2023-11-12 02:17:20,061 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 413 places, 428 transitions, 874 flow [2023-11-12 02:17:20,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 413 places, 428 transitions, 874 flow [2023-11-12 02:17:20,271 INFO L124 PetriNetUnfolderBase]: 25/428 cut-off events. [2023-11-12 02:17:20,271 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-12 02:17:20,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 441 conditions, 428 events. 25/428 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1453 event pairs, 0 based on Foata normal form. 0/357 useless extension candidates. Maximal degree in co-relation 317. Up to 2 conditions per place. [2023-11-12 02:17:20,322 INFO L119 LiptonReduction]: Number of co-enabled transitions 69120 [2023-11-12 02:17:32,033 INFO L134 LiptonReduction]: Checked pairs total: 223588 [2023-11-12 02:17:32,033 INFO L136 LiptonReduction]: Total number of compositions: 404 [2023-11-12 02:17:32,058 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:17:32,066 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=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7593fe2c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:17:32,066 INFO L358 AbstractCegarLoop]: Starting to check reachability of 83 error locations. [2023-11-12 02:17:32,068 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:17:32,068 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-12 02:17:32,068 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:17:32,068 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:32,069 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-12 02:17:32,070 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-11-12 02:17:32,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:32,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1722, now seen corresponding path program 1 times [2023-11-12 02:17:32,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:32,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664298805] [2023-11-12 02:17:32,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:32,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:32,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:32,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:32,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:32,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664298805] [2023-11-12 02:17:32,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664298805] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:32,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:32,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 02:17:32,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360366969] [2023-11-12 02:17:32,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:32,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:17:32,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:32,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:17:32,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:17:32,271 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 442 out of 861 [2023-11-12 02:17:32,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 142 transitions, 302 flow. Second operand has 2 states, 2 states have (on average 442.5) internal successors, (885), 2 states have internal predecessors, (885), 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) [2023-11-12 02:17:32,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:17:32,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 442 of 861 [2023-11-12 02:17:32,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:17:36,299 INFO L124 PetriNetUnfolderBase]: 19021/32179 cut-off events. [2023-11-12 02:17:36,299 INFO L125 PetriNetUnfolderBase]: For 652/652 co-relation queries the response was YES. [2023-11-12 02:17:36,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57188 conditions, 32179 events. 19021/32179 cut-off events. For 652/652 co-relation queries the response was YES. Maximal size of possible extension queue 1662. Compared 276027 event pairs, 11989 based on Foata normal form. 651/25556 useless extension candidates. Maximal degree in co-relation 54324. Up to 24456 conditions per place. [2023-11-12 02:17:36,621 INFO L140 encePairwiseOnDemand]: 843/861 looper letters, 66 selfloop transitions, 0 changer transitions 1/124 dead transitions. [2023-11-12 02:17:36,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 124 transitions, 400 flow [2023-11-12 02:17:36,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:17:36,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:17:36,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 969 transitions. [2023-11-12 02:17:36,647 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5627177700348432 [2023-11-12 02:17:36,648 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 969 transitions. [2023-11-12 02:17:36,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 969 transitions. [2023-11-12 02:17:36,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:17:36,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 969 transitions. [2023-11-12 02:17:36,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 484.5) internal successors, (969), 2 states have internal predecessors, (969), 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) [2023-11-12 02:17:36,675 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 861.0) internal successors, (2583), 3 states have internal predecessors, (2583), 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) [2023-11-12 02:17:36,677 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 861.0) internal successors, (2583), 3 states have internal predecessors, (2583), 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) [2023-11-12 02:17:36,679 INFO L175 Difference]: Start difference. First operand has 132 places, 142 transitions, 302 flow. Second operand 2 states and 969 transitions. [2023-11-12 02:17:36,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 124 transitions, 400 flow [2023-11-12 02:17:36,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 124 transitions, 388 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-12 02:17:36,706 INFO L231 Difference]: Finished difference. Result has 111 places, 123 transitions, 251 flow [2023-11-12 02:17:36,709 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=861, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=251, PETRI_PLACES=111, PETRI_TRANSITIONS=123} [2023-11-12 02:17:36,713 INFO L281 CegarLoopForPetriNet]: 132 programPoint places, -21 predicate places. [2023-11-12 02:17:36,714 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 123 transitions, 251 flow [2023-11-12 02:17:36,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 442.5) internal successors, (885), 2 states have internal predecessors, (885), 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) [2023-11-12 02:17:36,715 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:36,715 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-12 02:17:36,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:17:36,716 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-11-12 02:17:36,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:36,717 INFO L85 PathProgramCache]: Analyzing trace with hash 53473265, now seen corresponding path program 1 times [2023-11-12 02:17:36,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:36,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524885408] [2023-11-12 02:17:36,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:36,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:36,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:36,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:36,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:36,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524885408] [2023-11-12 02:17:36,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524885408] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:36,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:36,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:17:36,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055930812] [2023-11-12 02:17:36,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:36,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:17:36,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:36,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:17:36,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:17:36,901 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 423 out of 861 [2023-11-12 02:17:36,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 123 transitions, 251 flow. Second operand has 3 states, 3 states have (on average 424.3333333333333) internal successors, (1273), 3 states have internal predecessors, (1273), 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) [2023-11-12 02:17:36,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:17:36,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 423 of 861 [2023-11-12 02:17:36,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:17:41,236 INFO L124 PetriNetUnfolderBase]: 24461/41062 cut-off events. [2023-11-12 02:17:41,236 INFO L125 PetriNetUnfolderBase]: For 186/186 co-relation queries the response was YES. [2023-11-12 02:17:41,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72940 conditions, 41062 events. 24461/41062 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 1910. Compared 351823 event pairs, 11501 based on Foata normal form. 0/31692 useless extension candidates. Maximal degree in co-relation 72937. Up to 31576 conditions per place. [2023-11-12 02:17:41,578 INFO L140 encePairwiseOnDemand]: 853/861 looper letters, 94 selfloop transitions, 2 changer transitions 0/143 dead transitions. [2023-11-12 02:17:41,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 143 transitions, 485 flow [2023-11-12 02:17:41,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:17:41,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:17:41,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1371 transitions. [2023-11-12 02:17:41,586 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5307781649245064 [2023-11-12 02:17:41,587 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1371 transitions. [2023-11-12 02:17:41,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1371 transitions. [2023-11-12 02:17:41,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:17:41,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1371 transitions. [2023-11-12 02:17:41,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 457.0) internal successors, (1371), 3 states have internal predecessors, (1371), 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) [2023-11-12 02:17:41,602 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 861.0) internal successors, (3444), 4 states have internal predecessors, (3444), 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) [2023-11-12 02:17:41,606 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 861.0) internal successors, (3444), 4 states have internal predecessors, (3444), 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) [2023-11-12 02:17:41,609 INFO L175 Difference]: Start difference. First operand has 111 places, 123 transitions, 251 flow. Second operand 3 states and 1371 transitions. [2023-11-12 02:17:41,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 143 transitions, 485 flow [2023-11-12 02:17:41,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 143 transitions, 485 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:17:41,617 INFO L231 Difference]: Finished difference. Result has 107 places, 119 transitions, 253 flow [2023-11-12 02:17:41,617 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=861, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=253, PETRI_PLACES=107, PETRI_TRANSITIONS=119} [2023-11-12 02:17:41,619 INFO L281 CegarLoopForPetriNet]: 132 programPoint places, -25 predicate places. [2023-11-12 02:17:41,620 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 119 transitions, 253 flow [2023-11-12 02:17:41,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 424.3333333333333) internal successors, (1273), 3 states have internal predecessors, (1273), 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) [2023-11-12 02:17:41,622 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:41,628 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 02:17:41,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:17:41,630 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-11-12 02:17:41,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:41,630 INFO L85 PathProgramCache]: Analyzing trace with hash -151766093, now seen corresponding path program 1 times [2023-11-12 02:17:41,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:41,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471819792] [2023-11-12 02:17:41,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:41,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:41,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:41,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:41,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471819792] [2023-11-12 02:17:41,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471819792] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:41,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:41,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:17:41,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729446001] [2023-11-12 02:17:41,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:41,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:17:41,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:41,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:17:41,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:17:41,778 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 423 out of 861 [2023-11-12 02:17:41,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 119 transitions, 253 flow. Second operand has 3 states, 3 states have (on average 424.6666666666667) internal successors, (1274), 3 states have internal predecessors, (1274), 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) [2023-11-12 02:17:41,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:17:41,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 423 of 861 [2023-11-12 02:17:41,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:17:45,903 INFO L124 PetriNetUnfolderBase]: 23941/37414 cut-off events. [2023-11-12 02:17:45,903 INFO L125 PetriNetUnfolderBase]: For 1162/1162 co-relation queries the response was YES. [2023-11-12 02:17:46,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69601 conditions, 37414 events. 23941/37414 cut-off events. For 1162/1162 co-relation queries the response was YES. Maximal size of possible extension queue 1572. Compared 285783 event pairs, 5141 based on Foata normal form. 0/29836 useless extension candidates. Maximal degree in co-relation 69597. Up to 30654 conditions per place. [2023-11-12 02:17:46,240 INFO L140 encePairwiseOnDemand]: 853/861 looper letters, 97 selfloop transitions, 2 changer transitions 0/140 dead transitions. [2023-11-12 02:17:46,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 140 transitions, 505 flow [2023-11-12 02:17:46,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:17:46,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:17:46,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1370 transitions. [2023-11-12 02:17:46,248 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5303910181958963 [2023-11-12 02:17:46,248 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1370 transitions. [2023-11-12 02:17:46,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1370 transitions. [2023-11-12 02:17:46,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:17:46,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1370 transitions. [2023-11-12 02:17:46,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 456.6666666666667) internal successors, (1370), 3 states have internal predecessors, (1370), 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) [2023-11-12 02:17:46,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 861.0) internal successors, (3444), 4 states have internal predecessors, (3444), 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) [2023-11-12 02:17:46,268 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 861.0) internal successors, (3444), 4 states have internal predecessors, (3444), 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) [2023-11-12 02:17:46,269 INFO L175 Difference]: Start difference. First operand has 107 places, 119 transitions, 253 flow. Second operand 3 states and 1370 transitions. [2023-11-12 02:17:46,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 140 transitions, 505 flow [2023-11-12 02:17:46,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 140 transitions, 505 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:17:46,277 INFO L231 Difference]: Finished difference. Result has 104 places, 115 transitions, 255 flow [2023-11-12 02:17:46,277 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=861, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=255, PETRI_PLACES=104, PETRI_TRANSITIONS=115} [2023-11-12 02:17:46,279 INFO L281 CegarLoopForPetriNet]: 132 programPoint places, -28 predicate places. [2023-11-12 02:17:46,280 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 115 transitions, 255 flow [2023-11-12 02:17:46,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 424.6666666666667) internal successors, (1274), 3 states have internal predecessors, (1274), 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) [2023-11-12 02:17:46,281 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:46,282 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:46,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:17:46,287 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-11-12 02:17:46,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:46,287 INFO L85 PathProgramCache]: Analyzing trace with hash 2086457898, now seen corresponding path program 1 times [2023-11-12 02:17:46,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:46,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813256200] [2023-11-12 02:17:46,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:46,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:46,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:46,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:46,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:46,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813256200] [2023-11-12 02:17:46,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813256200] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:46,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:46,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:17:46,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520559837] [2023-11-12 02:17:46,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:46,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:17:46,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:46,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:17:46,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:17:46,410 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 423 out of 861 [2023-11-12 02:17:46,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 115 transitions, 255 flow. Second operand has 3 states, 3 states have (on average 425.3333333333333) internal successors, (1276), 3 states have internal predecessors, (1276), 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) [2023-11-12 02:17:46,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:17:46,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 423 of 861 [2023-11-12 02:17:46,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:17:50,249 INFO L124 PetriNetUnfolderBase]: 28647/44949 cut-off events. [2023-11-12 02:17:50,249 INFO L125 PetriNetUnfolderBase]: For 1848/1848 co-relation queries the response was YES. [2023-11-12 02:17:50,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84245 conditions, 44949 events. 28647/44949 cut-off events. For 1848/1848 co-relation queries the response was YES. Maximal size of possible extension queue 1708. Compared 344264 event pairs, 6125 based on Foata normal form. 0/35521 useless extension candidates. Maximal degree in co-relation 84240. Up to 36740 conditions per place. [2023-11-12 02:17:50,561 INFO L140 encePairwiseOnDemand]: 853/861 looper letters, 104 selfloop transitions, 2 changer transitions 0/140 dead transitions. [2023-11-12 02:17:50,562 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 140 transitions, 534 flow [2023-11-12 02:17:50,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:17:50,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:17:50,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1375 transitions. [2023-11-12 02:17:50,568 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.532326751838947 [2023-11-12 02:17:50,568 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1375 transitions. [2023-11-12 02:17:50,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1375 transitions. [2023-11-12 02:17:50,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:17:50,570 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1375 transitions. [2023-11-12 02:17:50,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 458.3333333333333) internal successors, (1375), 3 states have internal predecessors, (1375), 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) [2023-11-12 02:17:50,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 861.0) internal successors, (3444), 4 states have internal predecessors, (3444), 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) [2023-11-12 02:17:50,585 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 861.0) internal successors, (3444), 4 states have internal predecessors, (3444), 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) [2023-11-12 02:17:50,585 INFO L175 Difference]: Start difference. First operand has 104 places, 115 transitions, 255 flow. Second operand 3 states and 1375 transitions. [2023-11-12 02:17:50,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 140 transitions, 534 flow [2023-11-12 02:17:50,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 140 transitions, 534 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:17:50,596 INFO L231 Difference]: Finished difference. Result has 101 places, 111 transitions, 257 flow [2023-11-12 02:17:50,596 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=861, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=257, PETRI_PLACES=101, PETRI_TRANSITIONS=111} [2023-11-12 02:17:50,598 INFO L281 CegarLoopForPetriNet]: 132 programPoint places, -31 predicate places. [2023-11-12 02:17:50,599 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 111 transitions, 257 flow [2023-11-12 02:17:50,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 425.3333333333333) internal successors, (1276), 3 states have internal predecessors, (1276), 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) [2023-11-12 02:17:50,600 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:50,600 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:50,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:17:50,601 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-11-12 02:17:50,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:50,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1053516891, now seen corresponding path program 1 times [2023-11-12 02:17:50,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:50,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611571713] [2023-11-12 02:17:50,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:50,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:50,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:50,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:50,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:50,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611571713] [2023-11-12 02:17:50,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611571713] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:50,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:50,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:17:50,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590296997] [2023-11-12 02:17:50,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:50,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:17:50,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:50,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:17:50,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:17:50,703 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 861 [2023-11-12 02:17:50,706 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 111 transitions, 257 flow. Second operand has 3 states, 3 states have (on average 439.3333333333333) internal successors, (1318), 3 states have internal predecessors, (1318), 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) [2023-11-12 02:17:50,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:17:50,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 861 [2023-11-12 02:17:50,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:17:54,854 INFO L124 PetriNetUnfolderBase]: 29049/46621 cut-off events. [2023-11-12 02:17:54,854 INFO L125 PetriNetUnfolderBase]: For 1706/1706 co-relation queries the response was YES. [2023-11-12 02:17:55,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86220 conditions, 46621 events. 29049/46621 cut-off events. For 1706/1706 co-relation queries the response was YES. Maximal size of possible extension queue 1927. Compared 378952 event pairs, 12593 based on Foata normal form. 0/37706 useless extension candidates. Maximal degree in co-relation 86214. Up to 26359 conditions per place. [2023-11-12 02:17:55,216 INFO L140 encePairwiseOnDemand]: 857/861 looper letters, 116 selfloop transitions, 3 changer transitions 0/161 dead transitions. [2023-11-12 02:17:55,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 161 transitions, 601 flow [2023-11-12 02:17:55,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:17:55,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:17:55,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1428 transitions. [2023-11-12 02:17:55,222 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5528455284552846 [2023-11-12 02:17:55,223 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1428 transitions. [2023-11-12 02:17:55,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1428 transitions. [2023-11-12 02:17:55,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:17:55,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1428 transitions. [2023-11-12 02:17:55,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 476.0) internal successors, (1428), 3 states have internal predecessors, (1428), 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) [2023-11-12 02:17:55,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 861.0) internal successors, (3444), 4 states have internal predecessors, (3444), 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) [2023-11-12 02:17:55,240 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 861.0) internal successors, (3444), 4 states have internal predecessors, (3444), 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) [2023-11-12 02:17:55,241 INFO L175 Difference]: Start difference. First operand has 101 places, 111 transitions, 257 flow. Second operand 3 states and 1428 transitions. [2023-11-12 02:17:55,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 161 transitions, 601 flow [2023-11-12 02:17:55,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 161 transitions, 601 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:17:55,246 INFO L231 Difference]: Finished difference. Result has 105 places, 113 transitions, 279 flow [2023-11-12 02:17:55,247 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=861, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=279, PETRI_PLACES=105, PETRI_TRANSITIONS=113} [2023-11-12 02:17:55,249 INFO L281 CegarLoopForPetriNet]: 132 programPoint places, -27 predicate places. [2023-11-12 02:17:55,250 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 113 transitions, 279 flow [2023-11-12 02:17:55,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 439.3333333333333) internal successors, (1318), 3 states have internal predecessors, (1318), 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) [2023-11-12 02:17:55,251 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:55,251 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:55,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:17:55,252 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-11-12 02:17:55,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:55,252 INFO L85 PathProgramCache]: Analyzing trace with hash -2101054523, now seen corresponding path program 1 times [2023-11-12 02:17:55,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:55,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166980309] [2023-11-12 02:17:55,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:55,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:55,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:55,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:55,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:55,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166980309] [2023-11-12 02:17:55,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166980309] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:55,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:55,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:17:55,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71389020] [2023-11-12 02:17:55,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:55,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:17:55,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:55,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:17:55,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:17:55,330 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 437 out of 861 [2023-11-12 02:17:55,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 113 transitions, 279 flow. Second operand has 3 states, 3 states have (on average 439.6666666666667) internal successors, (1319), 3 states have internal predecessors, (1319), 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) [2023-11-12 02:17:55,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:17:55,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 437 of 861 [2023-11-12 02:17:55,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:18:02,110 INFO L124 PetriNetUnfolderBase]: 43233/69953 cut-off events. [2023-11-12 02:18:02,110 INFO L125 PetriNetUnfolderBase]: For 8406/8406 co-relation queries the response was YES. [2023-11-12 02:18:02,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133344 conditions, 69953 events. 43233/69953 cut-off events. For 8406/8406 co-relation queries the response was YES. Maximal size of possible extension queue 2825. Compared 605735 event pairs, 17825 based on Foata normal form. 0/58267 useless extension candidates. Maximal degree in co-relation 133336. Up to 36813 conditions per place. [2023-11-12 02:18:02,621 INFO L140 encePairwiseOnDemand]: 857/861 looper letters, 123 selfloop transitions, 3 changer transitions 0/168 dead transitions. [2023-11-12 02:18:02,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 168 transitions, 668 flow [2023-11-12 02:18:02,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:18:02,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:18:02,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1430 transitions. [2023-11-12 02:18:02,626 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5536198219125048 [2023-11-12 02:18:02,626 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1430 transitions. [2023-11-12 02:18:02,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1430 transitions. [2023-11-12 02:18:02,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:18:02,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1430 transitions. [2023-11-12 02:18:02,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 476.6666666666667) internal successors, (1430), 3 states have internal predecessors, (1430), 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) [2023-11-12 02:18:02,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 861.0) internal successors, (3444), 4 states have internal predecessors, (3444), 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) [2023-11-12 02:18:02,641 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 861.0) internal successors, (3444), 4 states have internal predecessors, (3444), 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) [2023-11-12 02:18:02,641 INFO L175 Difference]: Start difference. First operand has 105 places, 113 transitions, 279 flow. Second operand 3 states and 1430 transitions. [2023-11-12 02:18:02,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 168 transitions, 668 flow [2023-11-12 02:18:02,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 168 transitions, 656 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:18:02,781 INFO L231 Difference]: Finished difference. Result has 107 places, 115 transitions, 295 flow [2023-11-12 02:18:02,781 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=861, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=295, PETRI_PLACES=107, PETRI_TRANSITIONS=115} [2023-11-12 02:18:02,782 INFO L281 CegarLoopForPetriNet]: 132 programPoint places, -25 predicate places. [2023-11-12 02:18:02,782 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 115 transitions, 295 flow [2023-11-12 02:18:02,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 439.6666666666667) internal successors, (1319), 3 states have internal predecessors, (1319), 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) [2023-11-12 02:18:02,784 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:18:02,784 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:02,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:18:02,784 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread3Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 79 more)] === [2023-11-12 02:18:02,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:02,785 INFO L85 PathProgramCache]: Analyzing trace with hash -746339572, now seen corresponding path program 1 times [2023-11-12 02:18:02,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:02,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418801] [2023-11-12 02:18:02,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:02,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat