./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/bench-exp2x9.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b74ec90b-6b41-410e-949c-b65ad6c1cf73/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b74ec90b-6b41-410e-949c-b65ad6c1cf73/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b74ec90b-6b41-410e-949c-b65ad6c1cf73/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b74ec90b-6b41-410e-949c-b65ad6c1cf73/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/bench-exp2x9.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b74ec90b-6b41-410e-949c-b65ad6c1cf73/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b74ec90b-6b41-410e-949c-b65ad6c1cf73/bin/uautomizer-verify-zZY32mL2XJ --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 af523f24b0126267447f5590b01302c6de6f439c37a01df1dbf66192a849a6d6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:26:03,719 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:26:03,827 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b74ec90b-6b41-410e-949c-b65ad6c1cf73/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-23 22:26:03,843 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:26:03,844 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:26:03,877 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:26:03,878 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:26:03,879 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:26:03,880 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:26:03,887 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:26:03,889 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:26:03,890 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:26:03,890 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:26:03,892 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:26:03,893 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:26:03,893 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:26:03,893 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:26:03,894 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:26:03,894 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:26:03,895 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:26:03,895 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:26:03,896 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:26:03,896 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-23 22:26:03,897 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:26:03,897 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:26:03,897 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:26:03,898 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:26:03,899 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:26:03,899 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:26:03,900 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:26:03,901 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:26:03,902 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:26:03,902 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:26:03,902 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:26:03,902 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:26:03,903 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:26:03,903 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:26:03,903 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:26:03,903 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:26:03,904 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:26:03,904 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:26:03,904 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_b74ec90b-6b41-410e-949c-b65ad6c1cf73/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b74ec90b-6b41-410e-949c-b65ad6c1cf73/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af523f24b0126267447f5590b01302c6de6f439c37a01df1dbf66192a849a6d6 [2023-11-23 22:26:04,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:26:04,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:26:04,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:26:04,217 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:26:04,218 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:26:04,219 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b74ec90b-6b41-410e-949c-b65ad6c1cf73/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/weaver/bench-exp2x9.wvr.c [2023-11-23 22:26:07,307 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:26:07,551 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:26:07,552 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b74ec90b-6b41-410e-949c-b65ad6c1cf73/sv-benchmarks/c/weaver/bench-exp2x9.wvr.c [2023-11-23 22:26:07,562 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b74ec90b-6b41-410e-949c-b65ad6c1cf73/bin/uautomizer-verify-zZY32mL2XJ/data/6e6f64ee4/bcdfe70484504c99b51ba8a097f22ec6/FLAGb24d97391 [2023-11-23 22:26:07,577 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b74ec90b-6b41-410e-949c-b65ad6c1cf73/bin/uautomizer-verify-zZY32mL2XJ/data/6e6f64ee4/bcdfe70484504c99b51ba8a097f22ec6 [2023-11-23 22:26:07,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:26:07,582 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:26:07,584 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:26:07,584 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:26:07,590 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:26:07,591 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:26:07" (1/1) ... [2023-11-23 22:26:07,592 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a64c7b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:07, skipping insertion in model container [2023-11-23 22:26:07,592 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:26:07" (1/1) ... [2023-11-23 22:26:07,620 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:26:07,893 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:26:07,904 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:26:07,954 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:26:07,970 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:26:07,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:07 WrapperNode [2023-11-23 22:26:07,971 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:26:07,975 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:26:07,975 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:26:07,975 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:26:07,983 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:07" (1/1) ... [2023-11-23 22:26:07,998 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:07" (1/1) ... [2023-11-23 22:26:08,032 INFO L138 Inliner]: procedures = 20, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 173 [2023-11-23 22:26:08,033 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:26:08,033 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:26:08,033 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:26:08,034 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:26:08,044 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:07" (1/1) ... [2023-11-23 22:26:08,044 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:07" (1/1) ... [2023-11-23 22:26:08,050 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:07" (1/1) ... [2023-11-23 22:26:08,051 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:07" (1/1) ... [2023-11-23 22:26:08,066 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:07" (1/1) ... [2023-11-23 22:26:08,070 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:07" (1/1) ... [2023-11-23 22:26:08,074 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:07" (1/1) ... [2023-11-23 22:26:08,076 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:07" (1/1) ... [2023-11-23 22:26:08,081 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:26:08,082 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:26:08,082 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:26:08,083 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:26:08,084 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:07" (1/1) ... [2023-11-23 22:26:08,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:26:08,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b74ec90b-6b41-410e-949c-b65ad6c1cf73/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:26:08,135 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b74ec90b-6b41-410e-949c-b65ad6c1cf73/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:26:08,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b74ec90b-6b41-410e-949c-b65ad6c1cf73/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:26:08,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:26:08,180 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-23 22:26:08,180 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-23 22:26:08,180 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-23 22:26:08,180 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-23 22:26:08,181 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-23 22:26:08,181 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-23 22:26:08,182 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-23 22:26:08,182 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-23 22:26:08,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 22:26:08,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:26:08,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 22:26:08,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:26:08,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:26:08,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 22:26:08,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:26:08,188 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 22:26:08,374 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:26:08,376 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:26:09,166 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:26:09,190 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:26:09,194 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-23 22:26:09,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:26:09 BoogieIcfgContainer [2023-11-23 22:26:09,197 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:26:09,200 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:26:09,201 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:26:09,204 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:26:09,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:26:07" (1/3) ... [2023-11-23 22:26:09,205 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b2c1ee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:26:09, skipping insertion in model container [2023-11-23 22:26:09,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:26:07" (2/3) ... [2023-11-23 22:26:09,207 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b2c1ee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:26:09, skipping insertion in model container [2023-11-23 22:26:09,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:26:09" (3/3) ... [2023-11-23 22:26:09,209 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp2x9.wvr.c [2023-11-23 22:26:09,218 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 22:26:09,230 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:26:09,231 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 111 error locations. [2023-11-23 22:26:09,231 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 22:26:09,453 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-23 22:26:09,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 586 places, 587 transitions, 1202 flow [2023-11-23 22:26:09,896 INFO L124 PetriNetUnfolderBase]: 14/583 cut-off events. [2023-11-23 22:26:09,896 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-23 22:26:09,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 600 conditions, 583 events. 14/583 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1923 event pairs, 0 based on Foata normal form. 0/458 useless extension candidates. Maximal degree in co-relation 423. Up to 2 conditions per place. [2023-11-23 22:26:09,921 INFO L82 GeneralOperation]: Start removeDead. Operand has 586 places, 587 transitions, 1202 flow [2023-11-23 22:26:09,945 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 556 places, 555 transitions, 1134 flow [2023-11-23 22:26:09,964 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:26:09,974 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;@6aa099d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:26:09,975 INFO L358 AbstractCegarLoop]: Starting to check reachability of 207 error locations. [2023-11-23 22:26:09,982 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 22:26:09,982 INFO L124 PetriNetUnfolderBase]: 0/21 cut-off events. [2023-11-23 22:26:09,982 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 22:26:09,983 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:26:09,983 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] [2023-11-23 22:26:09,984 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-23 22:26:09,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:09,990 INFO L85 PathProgramCache]: Analyzing trace with hash 2134399332, now seen corresponding path program 1 times [2023-11-23 22:26:10,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:10,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589414841] [2023-11-23 22:26:10,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:10,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:10,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:10,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:26:10,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:10,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589414841] [2023-11-23 22:26:10,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589414841] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:10,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:10,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:26:10,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072539720] [2023-11-23 22:26:10,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:10,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:26:10,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:10,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:26:10,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:26:10,529 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 540 out of 587 [2023-11-23 22:26:10,537 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 556 places, 555 transitions, 1134 flow. Second operand has 3 states, 3 states have (on average 541.3333333333334) internal successors, (1624), 3 states have internal predecessors, (1624), 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) [2023-11-23 22:26:10,537 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:26:10,537 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 540 of 587 [2023-11-23 22:26:10,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:26:11,178 INFO L124 PetriNetUnfolderBase]: 76/900 cut-off events. [2023-11-23 22:26:11,179 INFO L125 PetriNetUnfolderBase]: For 84/86 co-relation queries the response was YES. [2023-11-23 22:26:11,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1223 conditions, 900 events. 76/900 cut-off events. For 84/86 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4989 event pairs, 66 based on Foata normal form. 145/853 useless extension candidates. Maximal degree in co-relation 1056. Up to 172 conditions per place. [2023-11-23 22:26:11,215 INFO L140 encePairwiseOnDemand]: 579/587 looper letters, 36 selfloop transitions, 2 changer transitions 1/549 dead transitions. [2023-11-23 22:26:11,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 557 places, 549 transitions, 1198 flow [2023-11-23 22:26:11,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:26:11,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:26:11,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1664 transitions. [2023-11-23 22:26:11,237 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9449176604202157 [2023-11-23 22:26:11,238 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1664 transitions. [2023-11-23 22:26:11,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1664 transitions. [2023-11-23 22:26:11,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:26:11,245 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1664 transitions. [2023-11-23 22:26:11,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 554.6666666666666) internal successors, (1664), 3 states have internal predecessors, (1664), 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) [2023-11-23 22:26:11,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:11,266 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:11,268 INFO L175 Difference]: Start difference. First operand has 556 places, 555 transitions, 1134 flow. Second operand 3 states and 1664 transitions. [2023-11-23 22:26:11,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 557 places, 549 transitions, 1198 flow [2023-11-23 22:26:11,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 549 places, 549 transitions, 1182 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-11-23 22:26:11,295 INFO L231 Difference]: Finished difference. Result has 549 places, 548 transitions, 1108 flow [2023-11-23 22:26:11,298 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1106, PETRI_DIFFERENCE_MINUEND_PLACES=547, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=547, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1108, PETRI_PLACES=549, PETRI_TRANSITIONS=548} [2023-11-23 22:26:11,302 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -7 predicate places. [2023-11-23 22:26:11,302 INFO L495 AbstractCegarLoop]: Abstraction has has 549 places, 548 transitions, 1108 flow [2023-11-23 22:26:11,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 541.3333333333334) internal successors, (1624), 3 states have internal predecessors, (1624), 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) [2023-11-23 22:26:11,304 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:26:11,305 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:11,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:26:11,306 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-23 22:26:11,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:11,307 INFO L85 PathProgramCache]: Analyzing trace with hash -570196397, now seen corresponding path program 1 times [2023-11-23 22:26:11,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:11,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405737598] [2023-11-23 22:26:11,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:11,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:11,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:11,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:26:11,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:11,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405737598] [2023-11-23 22:26:11,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405737598] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:11,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:11,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:26:11,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495765558] [2023-11-23 22:26:11,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:11,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:26:11,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:11,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:26:11,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:26:11,595 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 541 out of 587 [2023-11-23 22:26:11,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 549 places, 548 transitions, 1108 flow. Second operand has 3 states, 3 states have (on average 542.3333333333334) internal successors, (1627), 3 states have internal predecessors, (1627), 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) [2023-11-23 22:26:11,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:26:11,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 541 of 587 [2023-11-23 22:26:11,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:26:12,122 INFO L124 PetriNetUnfolderBase]: 76/898 cut-off events. [2023-11-23 22:26:12,122 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-11-23 22:26:12,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1123 conditions, 898 events. 76/898 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5328 event pairs, 66 based on Foata normal form. 0/707 useless extension candidates. Maximal degree in co-relation 1093. Up to 171 conditions per place. [2023-11-23 22:26:12,160 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 35 selfloop transitions, 2 changer transitions 0/547 dead transitions. [2023-11-23 22:26:12,161 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 549 places, 547 transitions, 1180 flow [2023-11-23 22:26:12,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:26:12,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:26:12,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1661 transitions. [2023-11-23 22:26:12,167 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9432140829074389 [2023-11-23 22:26:12,167 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1661 transitions. [2023-11-23 22:26:12,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1661 transitions. [2023-11-23 22:26:12,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:26:12,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1661 transitions. [2023-11-23 22:26:12,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 553.6666666666666) internal successors, (1661), 3 states have internal predecessors, (1661), 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) [2023-11-23 22:26:12,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:12,183 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:12,183 INFO L175 Difference]: Start difference. First operand has 549 places, 548 transitions, 1108 flow. Second operand 3 states and 1661 transitions. [2023-11-23 22:26:12,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 549 places, 547 transitions, 1180 flow [2023-11-23 22:26:12,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 547 places, 547 transitions, 1176 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:26:12,197 INFO L231 Difference]: Finished difference. Result has 547 places, 547 transitions, 1106 flow [2023-11-23 22:26:12,198 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1102, PETRI_DIFFERENCE_MINUEND_PLACES=545, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=547, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=545, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1106, PETRI_PLACES=547, PETRI_TRANSITIONS=547} [2023-11-23 22:26:12,199 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -9 predicate places. [2023-11-23 22:26:12,200 INFO L495 AbstractCegarLoop]: Abstraction has has 547 places, 547 transitions, 1106 flow [2023-11-23 22:26:12,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 542.3333333333334) internal successors, (1627), 3 states have internal predecessors, (1627), 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) [2023-11-23 22:26:12,201 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:26:12,202 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:12,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:26:12,202 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-23 22:26:12,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:12,203 INFO L85 PathProgramCache]: Analyzing trace with hash 772372103, now seen corresponding path program 1 times [2023-11-23 22:26:12,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:12,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428529630] [2023-11-23 22:26:12,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:12,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:12,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:12,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:26:12,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:12,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428529630] [2023-11-23 22:26:12,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428529630] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:12,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:12,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:26:12,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946701388] [2023-11-23 22:26:12,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:12,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:26:12,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:12,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:26:12,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:26:12,412 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 540 out of 587 [2023-11-23 22:26:12,415 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 547 places, 547 transitions, 1106 flow. Second operand has 3 states, 3 states have (on average 541.3333333333334) internal successors, (1624), 3 states have internal predecessors, (1624), 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) [2023-11-23 22:26:12,416 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:26:12,416 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 540 of 587 [2023-11-23 22:26:12,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:26:12,898 INFO L124 PetriNetUnfolderBase]: 76/897 cut-off events. [2023-11-23 22:26:12,898 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2023-11-23 22:26:12,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1101 conditions, 897 events. 76/897 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5396 event pairs, 66 based on Foata normal form. 0/706 useless extension candidates. Maximal degree in co-relation 1064. Up to 172 conditions per place. [2023-11-23 22:26:12,939 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 36 selfloop transitions, 2 changer transitions 0/546 dead transitions. [2023-11-23 22:26:12,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 548 places, 546 transitions, 1180 flow [2023-11-23 22:26:12,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:26:12,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:26:12,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1659 transitions. [2023-11-23 22:26:12,945 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9420783645655877 [2023-11-23 22:26:12,946 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1659 transitions. [2023-11-23 22:26:12,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1659 transitions. [2023-11-23 22:26:12,947 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:26:12,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1659 transitions. [2023-11-23 22:26:12,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 553.0) internal successors, (1659), 3 states have internal predecessors, (1659), 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) [2023-11-23 22:26:12,959 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:12,961 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:12,962 INFO L175 Difference]: Start difference. First operand has 547 places, 547 transitions, 1106 flow. Second operand 3 states and 1659 transitions. [2023-11-23 22:26:12,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 548 places, 546 transitions, 1180 flow [2023-11-23 22:26:12,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 546 places, 546 transitions, 1176 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:26:12,975 INFO L231 Difference]: Finished difference. Result has 546 places, 546 transitions, 1104 flow [2023-11-23 22:26:12,976 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1100, PETRI_DIFFERENCE_MINUEND_PLACES=544, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=546, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=544, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1104, PETRI_PLACES=546, PETRI_TRANSITIONS=546} [2023-11-23 22:26:12,978 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -10 predicate places. [2023-11-23 22:26:12,978 INFO L495 AbstractCegarLoop]: Abstraction has has 546 places, 546 transitions, 1104 flow [2023-11-23 22:26:12,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 541.3333333333334) internal successors, (1624), 3 states have internal predecessors, (1624), 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) [2023-11-23 22:26:12,980 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:26:12,980 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:12,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 22:26:12,981 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-23 22:26:12,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:12,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1297497789, now seen corresponding path program 1 times [2023-11-23 22:26:12,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:12,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157933339] [2023-11-23 22:26:12,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:12,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:13,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:13,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:26:13,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:13,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157933339] [2023-11-23 22:26:13,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157933339] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:13,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:13,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:26:13,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037992143] [2023-11-23 22:26:13,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:13,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:26:13,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:13,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:26:13,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:26:13,207 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 541 out of 587 [2023-11-23 22:26:13,210 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 546 places, 546 transitions, 1104 flow. Second operand has 3 states, 3 states have (on average 542.3333333333334) internal successors, (1627), 3 states have internal predecessors, (1627), 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) [2023-11-23 22:26:13,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:26:13,211 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 541 of 587 [2023-11-23 22:26:13,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:26:13,710 INFO L124 PetriNetUnfolderBase]: 76/896 cut-off events. [2023-11-23 22:26:13,710 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2023-11-23 22:26:13,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1077 conditions, 896 events. 76/896 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 5337 event pairs, 66 based on Foata normal form. 0/705 useless extension candidates. Maximal degree in co-relation 1033. Up to 171 conditions per place. [2023-11-23 22:26:13,745 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 35 selfloop transitions, 2 changer transitions 0/545 dead transitions. [2023-11-23 22:26:13,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 547 places, 545 transitions, 1176 flow [2023-11-23 22:26:13,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:26:13,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:26:13,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1661 transitions. [2023-11-23 22:26:13,751 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9432140829074389 [2023-11-23 22:26:13,751 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1661 transitions. [2023-11-23 22:26:13,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1661 transitions. [2023-11-23 22:26:13,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:26:13,754 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1661 transitions. [2023-11-23 22:26:13,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 553.6666666666666) internal successors, (1661), 3 states have internal predecessors, (1661), 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) [2023-11-23 22:26:13,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:13,767 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:13,768 INFO L175 Difference]: Start difference. First operand has 546 places, 546 transitions, 1104 flow. Second operand 3 states and 1661 transitions. [2023-11-23 22:26:13,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 547 places, 545 transitions, 1176 flow [2023-11-23 22:26:13,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 545 places, 545 transitions, 1172 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:26:13,783 INFO L231 Difference]: Finished difference. Result has 545 places, 545 transitions, 1102 flow [2023-11-23 22:26:13,784 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1098, PETRI_DIFFERENCE_MINUEND_PLACES=543, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=543, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1102, PETRI_PLACES=545, PETRI_TRANSITIONS=545} [2023-11-23 22:26:13,786 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -11 predicate places. [2023-11-23 22:26:13,786 INFO L495 AbstractCegarLoop]: Abstraction has has 545 places, 545 transitions, 1102 flow [2023-11-23 22:26:13,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 542.3333333333334) internal successors, (1627), 3 states have internal predecessors, (1627), 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) [2023-11-23 22:26:13,788 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:26:13,789 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:13,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 22:26:13,789 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-23 22:26:13,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:13,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1038763546, now seen corresponding path program 1 times [2023-11-23 22:26:13,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:13,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036660536] [2023-11-23 22:26:13,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:13,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:13,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:13,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:26:13,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:13,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036660536] [2023-11-23 22:26:13,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036660536] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:13,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:13,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:26:13,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429061785] [2023-11-23 22:26:13,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:13,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:26:13,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:13,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:26:13,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:26:13,899 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 561 out of 587 [2023-11-23 22:26:13,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 545 places, 545 transitions, 1102 flow. Second operand has 3 states, 3 states have (on average 562.3333333333334) internal successors, (1687), 3 states have internal predecessors, (1687), 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) [2023-11-23 22:26:13,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:26:13,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 561 of 587 [2023-11-23 22:26:13,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:26:15,218 INFO L124 PetriNetUnfolderBase]: 102/3486 cut-off events. [2023-11-23 22:26:15,218 INFO L125 PetriNetUnfolderBase]: For 15/23 co-relation queries the response was YES. [2023-11-23 22:26:15,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3651 conditions, 3486 events. 102/3486 cut-off events. For 15/23 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 31363 event pairs, 51 based on Foata normal form. 0/2629 useless extension candidates. Maximal degree in co-relation 3600. Up to 144 conditions per place. [2023-11-23 22:26:15,325 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 15 selfloop transitions, 2 changer transitions 0/544 dead transitions. [2023-11-23 22:26:15,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 546 places, 544 transitions, 1134 flow [2023-11-23 22:26:15,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:26:15,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:26:15,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1701 transitions. [2023-11-23 22:26:15,336 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9659284497444633 [2023-11-23 22:26:15,336 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1701 transitions. [2023-11-23 22:26:15,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1701 transitions. [2023-11-23 22:26:15,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:26:15,338 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1701 transitions. [2023-11-23 22:26:15,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 567.0) internal successors, (1701), 3 states have internal predecessors, (1701), 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) [2023-11-23 22:26:15,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:15,352 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:15,352 INFO L175 Difference]: Start difference. First operand has 545 places, 545 transitions, 1102 flow. Second operand 3 states and 1701 transitions. [2023-11-23 22:26:15,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 546 places, 544 transitions, 1134 flow [2023-11-23 22:26:15,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 544 transitions, 1130 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:26:15,366 INFO L231 Difference]: Finished difference. Result has 544 places, 544 transitions, 1100 flow [2023-11-23 22:26:15,367 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1096, PETRI_DIFFERENCE_MINUEND_PLACES=542, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=544, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=542, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1100, PETRI_PLACES=544, PETRI_TRANSITIONS=544} [2023-11-23 22:26:15,370 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -12 predicate places. [2023-11-23 22:26:15,371 INFO L495 AbstractCegarLoop]: Abstraction has has 544 places, 544 transitions, 1100 flow [2023-11-23 22:26:15,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 562.3333333333334) internal successors, (1687), 3 states have internal predecessors, (1687), 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) [2023-11-23 22:26:15,372 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:26:15,373 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:15,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 22:26:15,374 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-23 22:26:15,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:15,375 INFO L85 PathProgramCache]: Analyzing trace with hash 379827550, now seen corresponding path program 1 times [2023-11-23 22:26:15,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:15,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310267286] [2023-11-23 22:26:15,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:15,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:15,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:26:15,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:15,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310267286] [2023-11-23 22:26:15,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310267286] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:15,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:15,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:26:15,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101622894] [2023-11-23 22:26:15,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:15,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:26:15,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:15,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:26:15,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:26:15,562 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 510 out of 587 [2023-11-23 22:26:15,565 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 544 places, 544 transitions, 1100 flow. Second operand has 3 states, 3 states have (on average 511.0) internal successors, (1533), 3 states have internal predecessors, (1533), 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) [2023-11-23 22:26:15,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:26:15,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 510 of 587 [2023-11-23 22:26:15,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:26:15,983 INFO L124 PetriNetUnfolderBase]: 121/878 cut-off events. [2023-11-23 22:26:15,983 INFO L125 PetriNetUnfolderBase]: For 4/8 co-relation queries the response was YES. [2023-11-23 22:26:15,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1276 conditions, 878 events. 121/878 cut-off events. For 4/8 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 5173 event pairs, 90 based on Foata normal form. 0/751 useless extension candidates. Maximal degree in co-relation 1218. Up to 228 conditions per place. [2023-11-23 22:26:16,017 INFO L140 encePairwiseOnDemand]: 554/587 looper letters, 41 selfloop transitions, 15 changer transitions 0/530 dead transitions. [2023-11-23 22:26:16,018 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 528 places, 530 transitions, 1187 flow [2023-11-23 22:26:16,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:26:16,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:26:16,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1604 transitions. [2023-11-23 22:26:16,024 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9108461101646792 [2023-11-23 22:26:16,024 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1604 transitions. [2023-11-23 22:26:16,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1604 transitions. [2023-11-23 22:26:16,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:26:16,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1604 transitions. [2023-11-23 22:26:16,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 534.6666666666666) internal successors, (1604), 3 states have internal predecessors, (1604), 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) [2023-11-23 22:26:16,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:16,039 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:16,040 INFO L175 Difference]: Start difference. First operand has 544 places, 544 transitions, 1100 flow. Second operand 3 states and 1604 transitions. [2023-11-23 22:26:16,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 528 places, 530 transitions, 1187 flow [2023-11-23 22:26:16,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 526 places, 530 transitions, 1183 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:26:16,053 INFO L231 Difference]: Finished difference. Result has 527 places, 527 transitions, 1109 flow [2023-11-23 22:26:16,054 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1060, PETRI_DIFFERENCE_MINUEND_PLACES=524, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=526, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=511, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1109, PETRI_PLACES=527, PETRI_TRANSITIONS=527} [2023-11-23 22:26:16,058 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -29 predicate places. [2023-11-23 22:26:16,058 INFO L495 AbstractCegarLoop]: Abstraction has has 527 places, 527 transitions, 1109 flow [2023-11-23 22:26:16,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 511.0) internal successors, (1533), 3 states have internal predecessors, (1533), 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) [2023-11-23 22:26:16,060 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:26:16,061 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:16,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 22:26:16,062 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-23 22:26:16,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:16,063 INFO L85 PathProgramCache]: Analyzing trace with hash -57904542, now seen corresponding path program 1 times [2023-11-23 22:26:16,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:16,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608776868] [2023-11-23 22:26:16,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:16,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:16,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:16,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:26:16,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:16,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608776868] [2023-11-23 22:26:16,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608776868] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:16,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:16,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:26:16,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854011186] [2023-11-23 22:26:16,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:16,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:26:16,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:16,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:26:16,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:26:16,257 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 513 out of 587 [2023-11-23 22:26:16,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 527 places, 527 transitions, 1109 flow. Second operand has 3 states, 3 states have (on average 514.0) internal successors, (1542), 3 states have internal predecessors, (1542), 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) [2023-11-23 22:26:16,260 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:26:16,260 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 513 of 587 [2023-11-23 22:26:16,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:26:16,669 INFO L124 PetriNetUnfolderBase]: 121/862 cut-off events. [2023-11-23 22:26:16,669 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2023-11-23 22:26:16,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1243 conditions, 862 events. 121/862 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 5321 event pairs, 90 based on Foata normal form. 0/750 useless extension candidates. Maximal degree in co-relation 1098. Up to 226 conditions per place. [2023-11-23 22:26:16,703 INFO L140 encePairwiseOnDemand]: 555/587 looper letters, 39 selfloop transitions, 15 changer transitions 0/514 dead transitions. [2023-11-23 22:26:16,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 512 places, 514 transitions, 1194 flow [2023-11-23 22:26:16,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:26:16,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:26:16,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1610 transitions. [2023-11-23 22:26:16,709 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9142532651902329 [2023-11-23 22:26:16,709 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1610 transitions. [2023-11-23 22:26:16,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1610 transitions. [2023-11-23 22:26:16,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:26:16,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1610 transitions. [2023-11-23 22:26:16,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 536.6666666666666) internal successors, (1610), 3 states have internal predecessors, (1610), 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) [2023-11-23 22:26:16,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:16,737 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:16,737 INFO L175 Difference]: Start difference. First operand has 527 places, 527 transitions, 1109 flow. Second operand 3 states and 1610 transitions. [2023-11-23 22:26:16,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 512 places, 514 transitions, 1194 flow [2023-11-23 22:26:16,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 511 places, 514 transitions, 1179 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:26:16,750 INFO L231 Difference]: Finished difference. Result has 512 places, 511 transitions, 1109 flow [2023-11-23 22:26:16,751 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1060, PETRI_DIFFERENCE_MINUEND_PLACES=509, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=495, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1109, PETRI_PLACES=512, PETRI_TRANSITIONS=511} [2023-11-23 22:26:16,752 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -44 predicate places. [2023-11-23 22:26:16,753 INFO L495 AbstractCegarLoop]: Abstraction has has 512 places, 511 transitions, 1109 flow [2023-11-23 22:26:16,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 514.0) internal successors, (1542), 3 states have internal predecessors, (1542), 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) [2023-11-23 22:26:16,755 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:26:16,756 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:16,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 22:26:16,756 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-23 22:26:16,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:16,758 INFO L85 PathProgramCache]: Analyzing trace with hash 117963085, now seen corresponding path program 1 times [2023-11-23 22:26:16,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:16,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202878535] [2023-11-23 22:26:16,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:16,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:16,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:16,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:26:16,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:16,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202878535] [2023-11-23 22:26:16,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202878535] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:16,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:16,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:26:16,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936721771] [2023-11-23 22:26:16,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:16,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:26:16,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:16,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:26:16,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:26:16,926 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 510 out of 587 [2023-11-23 22:26:16,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 512 places, 511 transitions, 1109 flow. Second operand has 3 states, 3 states have (on average 511.0) internal successors, (1533), 3 states have internal predecessors, (1533), 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) [2023-11-23 22:26:16,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:26:16,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 510 of 587 [2023-11-23 22:26:16,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:26:17,567 INFO L124 PetriNetUnfolderBase]: 129/1358 cut-off events. [2023-11-23 22:26:17,567 INFO L125 PetriNetUnfolderBase]: For 94/98 co-relation queries the response was YES. [2023-11-23 22:26:17,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1772 conditions, 1358 events. 129/1358 cut-off events. For 94/98 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 9356 event pairs, 51 based on Foata normal form. 0/1171 useless extension candidates. Maximal degree in co-relation 1537. Up to 232 conditions per place. [2023-11-23 22:26:17,611 INFO L140 encePairwiseOnDemand]: 553/587 looper letters, 44 selfloop transitions, 16 changer transitions 0/501 dead transitions. [2023-11-23 22:26:17,612 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 496 places, 501 transitions, 1215 flow [2023-11-23 22:26:17,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:26:17,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:26:17,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1608 transitions. [2023-11-23 22:26:17,617 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9131175468483816 [2023-11-23 22:26:17,617 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1608 transitions. [2023-11-23 22:26:17,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1608 transitions. [2023-11-23 22:26:17,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:26:17,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1608 transitions. [2023-11-23 22:26:17,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 536.0) internal successors, (1608), 3 states have internal predecessors, (1608), 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) [2023-11-23 22:26:17,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:17,628 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:17,628 INFO L175 Difference]: Start difference. First operand has 512 places, 511 transitions, 1109 flow. Second operand 3 states and 1608 transitions. [2023-11-23 22:26:17,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 496 places, 501 transitions, 1215 flow [2023-11-23 22:26:17,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 495 places, 501 transitions, 1200 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:26:17,643 INFO L231 Difference]: Finished difference. Result has 496 places, 495 transitions, 1114 flow [2023-11-23 22:26:17,644 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1058, PETRI_DIFFERENCE_MINUEND_PLACES=493, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=493, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=477, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1114, PETRI_PLACES=496, PETRI_TRANSITIONS=495} [2023-11-23 22:26:17,646 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -60 predicate places. [2023-11-23 22:26:17,647 INFO L495 AbstractCegarLoop]: Abstraction has has 496 places, 495 transitions, 1114 flow [2023-11-23 22:26:17,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 511.0) internal successors, (1533), 3 states have internal predecessors, (1533), 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) [2023-11-23 22:26:17,647 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:26:17,648 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:17,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 22:26:17,648 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-23 22:26:17,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:17,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1693413895, now seen corresponding path program 1 times [2023-11-23 22:26:17,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:17,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264568635] [2023-11-23 22:26:17,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:17,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:17,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:17,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:26:17,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:17,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264568635] [2023-11-23 22:26:17,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264568635] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:17,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:17,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:26:17,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687346707] [2023-11-23 22:26:17,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:17,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:26:17,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:17,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:26:17,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:26:17,800 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 560 out of 587 [2023-11-23 22:26:17,802 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 495 transitions, 1114 flow. Second operand has 4 states, 4 states have (on average 561.25) internal successors, (2245), 4 states have internal predecessors, (2245), 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) [2023-11-23 22:26:17,802 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:26:17,803 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 560 of 587 [2023-11-23 22:26:17,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:26:18,129 INFO L124 PetriNetUnfolderBase]: 12/846 cut-off events. [2023-11-23 22:26:18,129 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-23 22:26:18,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 983 conditions, 846 events. 12/846 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4003 event pairs, 0 based on Foata normal form. 0/740 useless extension candidates. Maximal degree in co-relation 687. Up to 26 conditions per place. [2023-11-23 22:26:18,144 INFO L140 encePairwiseOnDemand]: 581/587 looper letters, 19 selfloop transitions, 5 changer transitions 0/500 dead transitions. [2023-11-23 22:26:18,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 500 places, 500 transitions, 1172 flow [2023-11-23 22:26:18,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:26:18,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-23 22:26:18,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2825 transitions. [2023-11-23 22:26:18,154 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9625212947189097 [2023-11-23 22:26:18,154 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2825 transitions. [2023-11-23 22:26:18,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2825 transitions. [2023-11-23 22:26:18,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:26:18,157 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2825 transitions. [2023-11-23 22:26:18,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 565.0) internal successors, (2825), 5 states have internal predecessors, (2825), 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) [2023-11-23 22:26:18,170 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 587.0) internal successors, (3522), 6 states have internal predecessors, (3522), 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) [2023-11-23 22:26:18,171 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 587.0) internal successors, (3522), 6 states have internal predecessors, (3522), 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) [2023-11-23 22:26:18,172 INFO L175 Difference]: Start difference. First operand has 496 places, 495 transitions, 1114 flow. Second operand 5 states and 2825 transitions. [2023-11-23 22:26:18,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 500 places, 500 transitions, 1172 flow [2023-11-23 22:26:18,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 500 transitions, 1156 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:26:18,188 INFO L231 Difference]: Finished difference. Result has 503 places, 499 transitions, 1136 flow [2023-11-23 22:26:18,189 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1098, PETRI_DIFFERENCE_MINUEND_PLACES=495, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=495, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=490, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1136, PETRI_PLACES=503, PETRI_TRANSITIONS=499} [2023-11-23 22:26:18,190 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -53 predicate places. [2023-11-23 22:26:18,190 INFO L495 AbstractCegarLoop]: Abstraction has has 503 places, 499 transitions, 1136 flow [2023-11-23 22:26:18,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 561.25) internal successors, (2245), 4 states have internal predecessors, (2245), 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) [2023-11-23 22:26:18,191 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:26:18,192 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:18,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 22:26:18,192 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-23 22:26:18,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:18,193 INFO L85 PathProgramCache]: Analyzing trace with hash 563466835, now seen corresponding path program 1 times [2023-11-23 22:26:18,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:18,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990244105] [2023-11-23 22:26:18,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:18,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:18,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:18,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:26:18,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:18,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990244105] [2023-11-23 22:26:18,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990244105] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:18,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:18,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:26:18,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454020311] [2023-11-23 22:26:18,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:18,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:26:18,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:18,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:26:18,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:26:18,380 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 513 out of 587 [2023-11-23 22:26:18,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 503 places, 499 transitions, 1136 flow. Second operand has 3 states, 3 states have (on average 514.0) internal successors, (1542), 3 states have internal predecessors, (1542), 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) [2023-11-23 22:26:18,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:26:18,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 513 of 587 [2023-11-23 22:26:18,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:26:19,105 INFO L124 PetriNetUnfolderBase]: 208/1851 cut-off events. [2023-11-23 22:26:19,105 INFO L125 PetriNetUnfolderBase]: For 198/202 co-relation queries the response was YES. [2023-11-23 22:26:19,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2497 conditions, 1851 events. 208/1851 cut-off events. For 198/202 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 14364 event pairs, 91 based on Foata normal form. 1/1662 useless extension candidates. Maximal degree in co-relation 1996. Up to 380 conditions per place. [2023-11-23 22:26:19,144 INFO L140 encePairwiseOnDemand]: 555/587 looper letters, 40 selfloop transitions, 15 changer transitions 11/490 dead transitions. [2023-11-23 22:26:19,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 490 transitions, 1239 flow [2023-11-23 22:26:19,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:26:19,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:26:19,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1613 transitions. [2023-11-23 22:26:19,151 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9159568427030097 [2023-11-23 22:26:19,151 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1613 transitions. [2023-11-23 22:26:19,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1613 transitions. [2023-11-23 22:26:19,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:26:19,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1613 transitions. [2023-11-23 22:26:19,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 537.6666666666666) internal successors, (1613), 3 states have internal predecessors, (1613), 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) [2023-11-23 22:26:19,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:19,162 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:19,162 INFO L175 Difference]: Start difference. First operand has 503 places, 499 transitions, 1136 flow. Second operand 3 states and 1613 transitions. [2023-11-23 22:26:19,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 488 places, 490 transitions, 1239 flow [2023-11-23 22:26:19,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 490 transitions, 1239 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-23 22:26:19,175 INFO L231 Difference]: Finished difference. Result has 489 places, 472 transitions, 1128 flow [2023-11-23 22:26:19,176 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1102, PETRI_DIFFERENCE_MINUEND_PLACES=486, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=482, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1128, PETRI_PLACES=489, PETRI_TRANSITIONS=472} [2023-11-23 22:26:19,177 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -67 predicate places. [2023-11-23 22:26:19,178 INFO L495 AbstractCegarLoop]: Abstraction has has 489 places, 472 transitions, 1128 flow [2023-11-23 22:26:19,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 514.0) internal successors, (1542), 3 states have internal predecessors, (1542), 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) [2023-11-23 22:26:19,178 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:26:19,178 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:19,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-23 22:26:19,179 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-23 22:26:19,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:19,179 INFO L85 PathProgramCache]: Analyzing trace with hash 471700510, now seen corresponding path program 1 times [2023-11-23 22:26:19,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:19,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488670558] [2023-11-23 22:26:19,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:19,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:19,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:19,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:26:19,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:19,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488670558] [2023-11-23 22:26:19,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488670558] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:19,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:19,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:26:19,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416420166] [2023-11-23 22:26:19,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:19,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:26:19,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:19,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:26:19,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:26:19,270 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 559 out of 587 [2023-11-23 22:26:19,272 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 489 places, 472 transitions, 1128 flow. Second operand has 3 states, 3 states have (on average 560.3333333333334) internal successors, (1681), 3 states have internal predecessors, (1681), 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) [2023-11-23 22:26:19,272 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:26:19,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 559 of 587 [2023-11-23 22:26:19,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:26:23,094 INFO L124 PetriNetUnfolderBase]: 746/14537 cut-off events. [2023-11-23 22:26:23,094 INFO L125 PetriNetUnfolderBase]: For 439/471 co-relation queries the response was YES. [2023-11-23 22:26:23,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18525 conditions, 14537 events. 746/14537 cut-off events. For 439/471 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 189349 event pairs, 276 based on Foata normal form. 3/12991 useless extension candidates. Maximal degree in co-relation 14079. Up to 1027 conditions per place. [2023-11-23 22:26:23,368 INFO L140 encePairwiseOnDemand]: 579/587 looper letters, 19 selfloop transitions, 4 changer transitions 0/475 dead transitions. [2023-11-23 22:26:23,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 475 transitions, 1183 flow [2023-11-23 22:26:23,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:26:23,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:26:23,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1704 transitions. [2023-11-23 22:26:23,375 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9676320272572402 [2023-11-23 22:26:23,375 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1704 transitions. [2023-11-23 22:26:23,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1704 transitions. [2023-11-23 22:26:23,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:26:23,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1704 transitions. [2023-11-23 22:26:23,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 568.0) internal successors, (1704), 3 states have internal predecessors, (1704), 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) [2023-11-23 22:26:23,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:23,386 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:23,386 INFO L175 Difference]: Start difference. First operand has 489 places, 472 transitions, 1128 flow. Second operand 3 states and 1704 transitions. [2023-11-23 22:26:23,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 475 transitions, 1183 flow [2023-11-23 22:26:23,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 475 transitions, 1168 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:26:23,410 INFO L231 Difference]: Finished difference. Result has 476 places, 472 transitions, 1133 flow [2023-11-23 22:26:23,411 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1105, PETRI_DIFFERENCE_MINUEND_PLACES=473, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1133, PETRI_PLACES=476, PETRI_TRANSITIONS=472} [2023-11-23 22:26:23,412 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -80 predicate places. [2023-11-23 22:26:23,412 INFO L495 AbstractCegarLoop]: Abstraction has has 476 places, 472 transitions, 1133 flow [2023-11-23 22:26:23,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 560.3333333333334) internal successors, (1681), 3 states have internal predecessors, (1681), 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) [2023-11-23 22:26:23,413 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:26:23,413 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:23,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-23 22:26:23,413 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-23 22:26:23,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:23,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1751667583, now seen corresponding path program 1 times [2023-11-23 22:26:23,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:23,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448651813] [2023-11-23 22:26:23,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:23,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:23,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:23,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:26:23,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:23,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448651813] [2023-11-23 22:26:23,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448651813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:23,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:23,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:26:23,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767153600] [2023-11-23 22:26:23,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:23,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:26:23,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:23,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:26:23,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:26:23,617 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 542 out of 587 [2023-11-23 22:26:23,619 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 472 transitions, 1133 flow. Second operand has 3 states, 3 states have (on average 545.0) internal successors, (1635), 3 states have internal predecessors, (1635), 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) [2023-11-23 22:26:23,619 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:26:23,619 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 542 of 587 [2023-11-23 22:26:23,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:26:25,126 INFO L124 PetriNetUnfolderBase]: 365/4440 cut-off events. [2023-11-23 22:26:25,126 INFO L125 PetriNetUnfolderBase]: For 169/175 co-relation queries the response was YES. [2023-11-23 22:26:25,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6180 conditions, 4440 events. 365/4440 cut-off events. For 169/175 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 44070 event pairs, 226 based on Foata normal form. 0/4000 useless extension candidates. Maximal degree in co-relation 4239. Up to 528 conditions per place. [2023-11-23 22:26:25,227 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 37 selfloop transitions, 2 changer transitions 0/474 dead transitions. [2023-11-23 22:26:25,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 474 transitions, 1218 flow [2023-11-23 22:26:25,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:26:25,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:26:25,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1665 transitions. [2023-11-23 22:26:25,234 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9454855195911414 [2023-11-23 22:26:25,234 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1665 transitions. [2023-11-23 22:26:25,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1665 transitions. [2023-11-23 22:26:25,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:26:25,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1665 transitions. [2023-11-23 22:26:25,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.0) internal successors, (1665), 3 states have internal predecessors, (1665), 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) [2023-11-23 22:26:25,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:25,247 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:25,248 INFO L175 Difference]: Start difference. First operand has 476 places, 472 transitions, 1133 flow. Second operand 3 states and 1665 transitions. [2023-11-23 22:26:25,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 474 transitions, 1218 flow [2023-11-23 22:26:25,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 474 transitions, 1218 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-23 22:26:25,265 INFO L231 Difference]: Finished difference. Result has 477 places, 471 transitions, 1135 flow [2023-11-23 22:26:25,266 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1131, PETRI_DIFFERENCE_MINUEND_PLACES=475, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1135, PETRI_PLACES=477, PETRI_TRANSITIONS=471} [2023-11-23 22:26:25,267 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -79 predicate places. [2023-11-23 22:26:25,267 INFO L495 AbstractCegarLoop]: Abstraction has has 477 places, 471 transitions, 1135 flow [2023-11-23 22:26:25,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 545.0) internal successors, (1635), 3 states have internal predecessors, (1635), 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) [2023-11-23 22:26:25,268 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:26:25,268 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:25,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-23 22:26:25,268 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-23 22:26:25,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:25,269 INFO L85 PathProgramCache]: Analyzing trace with hash 467621995, now seen corresponding path program 1 times [2023-11-23 22:26:25,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:25,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446507265] [2023-11-23 22:26:25,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:25,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:25,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:25,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:26:25,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:25,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446507265] [2023-11-23 22:26:25,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446507265] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:25,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:25,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:26:25,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716424834] [2023-11-23 22:26:25,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:25,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:26:25,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:25,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:26:25,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:26:25,476 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 543 out of 587 [2023-11-23 22:26:25,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 471 transitions, 1135 flow. Second operand has 3 states, 3 states have (on average 546.3333333333334) internal successors, (1639), 3 states have internal predecessors, (1639), 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) [2023-11-23 22:26:25,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:26:25,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 543 of 587 [2023-11-23 22:26:25,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:26:27,692 INFO L124 PetriNetUnfolderBase]: 689/6161 cut-off events. [2023-11-23 22:26:27,692 INFO L125 PetriNetUnfolderBase]: For 586/589 co-relation queries the response was YES. [2023-11-23 22:26:27,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9023 conditions, 6161 events. 689/6161 cut-off events. For 586/589 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 67635 event pairs, 499 based on Foata normal form. 0/5569 useless extension candidates. Maximal degree in co-relation 8714. Up to 1234 conditions per place. [2023-11-23 22:26:27,960 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 36 selfloop transitions, 2 changer transitions 0/473 dead transitions. [2023-11-23 22:26:27,960 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 473 transitions, 1218 flow [2023-11-23 22:26:27,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:26:27,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:26:27,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1667 transitions. [2023-11-23 22:26:27,965 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9466212379329926 [2023-11-23 22:26:27,965 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1667 transitions. [2023-11-23 22:26:27,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1667 transitions. [2023-11-23 22:26:27,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:26:27,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1667 transitions. [2023-11-23 22:26:27,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.6666666666666) internal successors, (1667), 3 states have internal predecessors, (1667), 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) [2023-11-23 22:26:27,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:27,976 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:27,976 INFO L175 Difference]: Start difference. First operand has 477 places, 471 transitions, 1135 flow. Second operand 3 states and 1667 transitions. [2023-11-23 22:26:27,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 473 transitions, 1218 flow [2023-11-23 22:26:27,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 473 transitions, 1214 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:26:27,990 INFO L231 Difference]: Finished difference. Result has 476 places, 470 transitions, 1133 flow [2023-11-23 22:26:27,991 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1129, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=468, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1133, PETRI_PLACES=476, PETRI_TRANSITIONS=470} [2023-11-23 22:26:27,992 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -80 predicate places. [2023-11-23 22:26:27,993 INFO L495 AbstractCegarLoop]: Abstraction has has 476 places, 470 transitions, 1133 flow [2023-11-23 22:26:27,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 546.3333333333334) internal successors, (1639), 3 states have internal predecessors, (1639), 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) [2023-11-23 22:26:27,995 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:26:27,995 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:27,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-23 22:26:27,995 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-23 22:26:27,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:27,996 INFO L85 PathProgramCache]: Analyzing trace with hash 206523210, now seen corresponding path program 1 times [2023-11-23 22:26:27,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:27,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918758783] [2023-11-23 22:26:27,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:27,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:28,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:26:28,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:28,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918758783] [2023-11-23 22:26:28,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918758783] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:28,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:28,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:26:28,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746442976] [2023-11-23 22:26:28,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:28,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:26:28,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:28,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:26:28,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:26:28,165 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 542 out of 587 [2023-11-23 22:26:28,167 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 470 transitions, 1133 flow. Second operand has 3 states, 3 states have (on average 546.0) internal successors, (1638), 3 states have internal predecessors, (1638), 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) [2023-11-23 22:26:28,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:26:28,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 542 of 587 [2023-11-23 22:26:28,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:26:29,404 INFO L124 PetriNetUnfolderBase]: 365/4416 cut-off events. [2023-11-23 22:26:29,404 INFO L125 PetriNetUnfolderBase]: For 181/187 co-relation queries the response was YES. [2023-11-23 22:26:29,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6181 conditions, 4416 events. 365/4416 cut-off events. For 181/187 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 43835 event pairs, 226 based on Foata normal form. 0/4000 useless extension candidates. Maximal degree in co-relation 5149. Up to 528 conditions per place. [2023-11-23 22:26:29,482 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 37 selfloop transitions, 2 changer transitions 0/472 dead transitions. [2023-11-23 22:26:29,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 472 transitions, 1218 flow [2023-11-23 22:26:29,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:26:29,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:26:29,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1665 transitions. [2023-11-23 22:26:29,494 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9454855195911414 [2023-11-23 22:26:29,495 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1665 transitions. [2023-11-23 22:26:29,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1665 transitions. [2023-11-23 22:26:29,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:26:29,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1665 transitions. [2023-11-23 22:26:29,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.0) internal successors, (1665), 3 states have internal predecessors, (1665), 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) [2023-11-23 22:26:29,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:29,508 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:29,508 INFO L175 Difference]: Start difference. First operand has 476 places, 470 transitions, 1133 flow. Second operand 3 states and 1665 transitions. [2023-11-23 22:26:29,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 472 transitions, 1218 flow [2023-11-23 22:26:29,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 472 transitions, 1214 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:26:29,524 INFO L231 Difference]: Finished difference. Result has 475 places, 469 transitions, 1131 flow [2023-11-23 22:26:29,525 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1127, PETRI_DIFFERENCE_MINUEND_PLACES=473, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=469, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1131, PETRI_PLACES=475, PETRI_TRANSITIONS=469} [2023-11-23 22:26:29,526 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -81 predicate places. [2023-11-23 22:26:29,527 INFO L495 AbstractCegarLoop]: Abstraction has has 475 places, 469 transitions, 1131 flow [2023-11-23 22:26:29,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 546.0) internal successors, (1638), 3 states have internal predecessors, (1638), 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) [2023-11-23 22:26:29,528 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:26:29,528 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:29,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-23 22:26:29,528 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-23 22:26:29,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:29,530 INFO L85 PathProgramCache]: Analyzing trace with hash -490192753, now seen corresponding path program 1 times [2023-11-23 22:26:29,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:29,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672988830] [2023-11-23 22:26:29,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:29,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:29,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:30,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:26:30,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:30,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672988830] [2023-11-23 22:26:30,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672988830] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:30,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:30,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:26:30,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473903610] [2023-11-23 22:26:30,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:30,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:26:30,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:30,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:26:30,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:26:30,578 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 562 out of 587 [2023-11-23 22:26:30,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 475 places, 469 transitions, 1131 flow. Second operand has 6 states, 6 states have (on average 563.8333333333334) internal successors, (3383), 6 states have internal predecessors, (3383), 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) [2023-11-23 22:26:30,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:26:30,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 562 of 587 [2023-11-23 22:26:30,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:26:31,491 INFO L124 PetriNetUnfolderBase]: 88/2701 cut-off events. [2023-11-23 22:26:31,491 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-11-23 22:26:31,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3341 conditions, 2701 events. 88/2701 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 22624 event pairs, 8 based on Foata normal form. 0/2427 useless extension candidates. Maximal degree in co-relation 3090. Up to 112 conditions per place. [2023-11-23 22:26:31,549 INFO L140 encePairwiseOnDemand]: 582/587 looper letters, 10 selfloop transitions, 4 changer transitions 0/468 dead transitions. [2023-11-23 22:26:31,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 468 transitions, 1157 flow [2023-11-23 22:26:31,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:26:31,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:26:31,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3387 transitions. [2023-11-23 22:26:31,561 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9616695059625213 [2023-11-23 22:26:31,562 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3387 transitions. [2023-11-23 22:26:31,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3387 transitions. [2023-11-23 22:26:31,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:26:31,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3387 transitions. [2023-11-23 22:26:31,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 564.5) internal successors, (3387), 6 states have internal predecessors, (3387), 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) [2023-11-23 22:26:31,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 587.0) internal successors, (4109), 7 states have internal predecessors, (4109), 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) [2023-11-23 22:26:31,587 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 587.0) internal successors, (4109), 7 states have internal predecessors, (4109), 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) [2023-11-23 22:26:31,587 INFO L175 Difference]: Start difference. First operand has 475 places, 469 transitions, 1131 flow. Second operand 6 states and 3387 transitions. [2023-11-23 22:26:31,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 468 transitions, 1157 flow [2023-11-23 22:26:31,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 468 transitions, 1153 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:26:31,725 INFO L231 Difference]: Finished difference. Result has 477 places, 468 transitions, 1133 flow [2023-11-23 22:26:31,726 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1125, PETRI_DIFFERENCE_MINUEND_PLACES=472, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1133, PETRI_PLACES=477, PETRI_TRANSITIONS=468} [2023-11-23 22:26:31,727 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -79 predicate places. [2023-11-23 22:26:31,727 INFO L495 AbstractCegarLoop]: Abstraction has has 477 places, 468 transitions, 1133 flow [2023-11-23 22:26:31,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 563.8333333333334) internal successors, (3383), 6 states have internal predecessors, (3383), 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) [2023-11-23 22:26:31,728 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:26:31,728 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:31,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-23 22:26:31,728 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-23 22:26:31,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:31,729 INFO L85 PathProgramCache]: Analyzing trace with hash -228441037, now seen corresponding path program 1 times [2023-11-23 22:26:31,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:31,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812382428] [2023-11-23 22:26:31,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:31,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:31,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:31,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:26:31,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:31,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812382428] [2023-11-23 22:26:31,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812382428] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:31,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:31,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:26:31,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355851801] [2023-11-23 22:26:31,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:31,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:26:31,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:31,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:26:31,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:26:31,918 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 542 out of 587 [2023-11-23 22:26:31,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 468 transitions, 1133 flow. Second operand has 3 states, 3 states have (on average 545.3333333333334) internal successors, (1636), 3 states have internal predecessors, (1636), 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) [2023-11-23 22:26:31,920 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:26:31,920 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 542 of 587 [2023-11-23 22:26:31,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:26:33,547 INFO L124 PetriNetUnfolderBase]: 464/4571 cut-off events. [2023-11-23 22:26:33,547 INFO L125 PetriNetUnfolderBase]: For 481/490 co-relation queries the response was YES. [2023-11-23 22:26:33,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6582 conditions, 4571 events. 464/4571 cut-off events. For 481/490 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 46770 event pairs, 316 based on Foata normal form. 0/4139 useless extension candidates. Maximal degree in co-relation 4788. Up to 853 conditions per place. [2023-11-23 22:26:33,619 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 38 selfloop transitions, 2 changer transitions 0/470 dead transitions. [2023-11-23 22:26:33,620 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 470 transitions, 1220 flow [2023-11-23 22:26:33,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:26:33,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:26:33,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1665 transitions. [2023-11-23 22:26:33,626 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9454855195911414 [2023-11-23 22:26:33,627 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1665 transitions. [2023-11-23 22:26:33,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1665 transitions. [2023-11-23 22:26:33,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:26:33,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1665 transitions. [2023-11-23 22:26:33,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.0) internal successors, (1665), 3 states have internal predecessors, (1665), 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) [2023-11-23 22:26:33,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:33,640 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:33,640 INFO L175 Difference]: Start difference. First operand has 477 places, 468 transitions, 1133 flow. Second operand 3 states and 1665 transitions. [2023-11-23 22:26:33,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 470 transitions, 1220 flow [2023-11-23 22:26:33,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 470 transitions, 1213 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-23 22:26:33,656 INFO L231 Difference]: Finished difference. Result has 474 places, 467 transitions, 1128 flow [2023-11-23 22:26:33,657 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1124, PETRI_DIFFERENCE_MINUEND_PLACES=472, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=467, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=465, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1128, PETRI_PLACES=474, PETRI_TRANSITIONS=467} [2023-11-23 22:26:33,658 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -82 predicate places. [2023-11-23 22:26:33,658 INFO L495 AbstractCegarLoop]: Abstraction has has 474 places, 467 transitions, 1128 flow [2023-11-23 22:26:33,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 545.3333333333334) internal successors, (1636), 3 states have internal predecessors, (1636), 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) [2023-11-23 22:26:33,659 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:26:33,659 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:33,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-23 22:26:33,660 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-23 22:26:33,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:33,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1243029442, now seen corresponding path program 1 times [2023-11-23 22:26:33,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:33,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923592813] [2023-11-23 22:26:33,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:33,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:33,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:33,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:26:33,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:33,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923592813] [2023-11-23 22:26:33,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923592813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:33,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:33,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:26:33,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589526706] [2023-11-23 22:26:33,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:33,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:26:33,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:33,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:26:33,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:26:33,818 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 543 out of 587 [2023-11-23 22:26:33,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 474 places, 467 transitions, 1128 flow. Second operand has 3 states, 3 states have (on average 547.3333333333334) internal successors, (1642), 3 states have internal predecessors, (1642), 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) [2023-11-23 22:26:33,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:26:33,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 543 of 587 [2023-11-23 22:26:33,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:26:35,991 INFO L124 PetriNetUnfolderBase]: 704/6230 cut-off events. [2023-11-23 22:26:35,992 INFO L125 PetriNetUnfolderBase]: For 595/598 co-relation queries the response was YES. [2023-11-23 22:26:36,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9186 conditions, 6230 events. 704/6230 cut-off events. For 595/598 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 68623 event pairs, 499 based on Foata normal form. 0/5680 useless extension candidates. Maximal degree in co-relation 7990. Up to 1234 conditions per place. [2023-11-23 22:26:36,100 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 36 selfloop transitions, 2 changer transitions 0/469 dead transitions. [2023-11-23 22:26:36,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 475 places, 469 transitions, 1211 flow [2023-11-23 22:26:36,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:26:36,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:26:36,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1667 transitions. [2023-11-23 22:26:36,110 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9466212379329926 [2023-11-23 22:26:36,110 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1667 transitions. [2023-11-23 22:26:36,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1667 transitions. [2023-11-23 22:26:36,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:26:36,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1667 transitions. [2023-11-23 22:26:36,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.6666666666666) internal successors, (1667), 3 states have internal predecessors, (1667), 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) [2023-11-23 22:26:36,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:36,126 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:36,126 INFO L175 Difference]: Start difference. First operand has 474 places, 467 transitions, 1128 flow. Second operand 3 states and 1667 transitions. [2023-11-23 22:26:36,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 475 places, 469 transitions, 1211 flow [2023-11-23 22:26:36,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 469 transitions, 1207 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:26:36,141 INFO L231 Difference]: Finished difference. Result has 473 places, 466 transitions, 1126 flow [2023-11-23 22:26:36,142 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1122, PETRI_DIFFERENCE_MINUEND_PLACES=471, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1126, PETRI_PLACES=473, PETRI_TRANSITIONS=466} [2023-11-23 22:26:36,142 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -83 predicate places. [2023-11-23 22:26:36,143 INFO L495 AbstractCegarLoop]: Abstraction has has 473 places, 466 transitions, 1126 flow [2023-11-23 22:26:36,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 547.3333333333334) internal successors, (1642), 3 states have internal predecessors, (1642), 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) [2023-11-23 22:26:36,144 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:26:36,144 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:36,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-23 22:26:36,144 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-23 22:26:36,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:36,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1598153195, now seen corresponding path program 1 times [2023-11-23 22:26:36,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:36,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235178980] [2023-11-23 22:26:36,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:36,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:36,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:36,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:26:36,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:36,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235178980] [2023-11-23 22:26:36,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235178980] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:36,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:36,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:26:36,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945887713] [2023-11-23 22:26:36,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:36,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:26:36,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:36,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:26:36,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:26:36,306 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 542 out of 587 [2023-11-23 22:26:36,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 473 places, 466 transitions, 1126 flow. Second operand has 3 states, 3 states have (on average 547.0) internal successors, (1641), 3 states have internal predecessors, (1641), 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) [2023-11-23 22:26:36,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:26:36,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 542 of 587 [2023-11-23 22:26:36,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:26:37,480 INFO L124 PetriNetUnfolderBase]: 365/4376 cut-off events. [2023-11-23 22:26:37,480 INFO L125 PetriNetUnfolderBase]: For 181/187 co-relation queries the response was YES. [2023-11-23 22:26:37,530 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6144 conditions, 4376 events. 365/4376 cut-off events. For 181/187 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 43225 event pairs, 226 based on Foata normal form. 0/4000 useless extension candidates. Maximal degree in co-relation 5256. Up to 528 conditions per place. [2023-11-23 22:26:37,563 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 37 selfloop transitions, 2 changer transitions 0/468 dead transitions. [2023-11-23 22:26:37,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 474 places, 468 transitions, 1211 flow [2023-11-23 22:26:37,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:26:37,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:26:37,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1665 transitions. [2023-11-23 22:26:37,569 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9454855195911414 [2023-11-23 22:26:37,569 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1665 transitions. [2023-11-23 22:26:37,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1665 transitions. [2023-11-23 22:26:37,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:26:37,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1665 transitions. [2023-11-23 22:26:37,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.0) internal successors, (1665), 3 states have internal predecessors, (1665), 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) [2023-11-23 22:26:37,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:37,580 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:37,580 INFO L175 Difference]: Start difference. First operand has 473 places, 466 transitions, 1126 flow. Second operand 3 states and 1665 transitions. [2023-11-23 22:26:37,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 474 places, 468 transitions, 1211 flow [2023-11-23 22:26:37,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 468 transitions, 1207 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:26:37,594 INFO L231 Difference]: Finished difference. Result has 472 places, 465 transitions, 1124 flow [2023-11-23 22:26:37,595 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1120, PETRI_DIFFERENCE_MINUEND_PLACES=470, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=463, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1124, PETRI_PLACES=472, PETRI_TRANSITIONS=465} [2023-11-23 22:26:37,596 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -84 predicate places. [2023-11-23 22:26:37,596 INFO L495 AbstractCegarLoop]: Abstraction has has 472 places, 465 transitions, 1124 flow [2023-11-23 22:26:37,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 547.0) internal successors, (1641), 3 states have internal predecessors, (1641), 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) [2023-11-23 22:26:37,597 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:26:37,597 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:37,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-23 22:26:37,597 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread4Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-23 22:26:37,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:37,598 INFO L85 PathProgramCache]: Analyzing trace with hash -2003421738, now seen corresponding path program 1 times [2023-11-23 22:26:37,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:37,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664529381] [2023-11-23 22:26:37,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:37,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:37,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:37,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:26:37,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:37,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664529381] [2023-11-23 22:26:37,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664529381] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:37,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:37,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:26:37,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263914233] [2023-11-23 22:26:37,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:37,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:26:37,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:37,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:26:37,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:26:37,754 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 543 out of 587 [2023-11-23 22:26:37,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 465 transitions, 1124 flow. Second operand has 3 states, 3 states have (on average 546.6666666666666) internal successors, (1640), 3 states have internal predecessors, (1640), 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) [2023-11-23 22:26:37,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:26:37,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 543 of 587 [2023-11-23 22:26:37,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:26:38,889 INFO L124 PetriNetUnfolderBase]: 264/3598 cut-off events. [2023-11-23 22:26:38,889 INFO L125 PetriNetUnfolderBase]: For 342/347 co-relation queries the response was YES. [2023-11-23 22:26:38,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4887 conditions, 3598 events. 264/3598 cut-off events. For 342/347 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 33997 event pairs, 156 based on Foata normal form. 0/3271 useless extension candidates. Maximal degree in co-relation 4672. Up to 480 conditions per place. [2023-11-23 22:26:38,965 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 36 selfloop transitions, 2 changer transitions 0/467 dead transitions. [2023-11-23 22:26:38,965 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 473 places, 467 transitions, 1207 flow [2023-11-23 22:26:38,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:26:38,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:26:38,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1667 transitions. [2023-11-23 22:26:38,972 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9466212379329926 [2023-11-23 22:26:38,972 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1667 transitions. [2023-11-23 22:26:38,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1667 transitions. [2023-11-23 22:26:38,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:26:38,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1667 transitions. [2023-11-23 22:26:38,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.6666666666666) internal successors, (1667), 3 states have internal predecessors, (1667), 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) [2023-11-23 22:26:38,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:38,985 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:38,986 INFO L175 Difference]: Start difference. First operand has 472 places, 465 transitions, 1124 flow. Second operand 3 states and 1667 transitions. [2023-11-23 22:26:38,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 473 places, 467 transitions, 1207 flow [2023-11-23 22:26:38,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 467 transitions, 1203 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:26:39,002 INFO L231 Difference]: Finished difference. Result has 471 places, 464 transitions, 1122 flow [2023-11-23 22:26:39,003 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1118, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=462, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1122, PETRI_PLACES=471, PETRI_TRANSITIONS=464} [2023-11-23 22:26:39,004 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -85 predicate places. [2023-11-23 22:26:39,004 INFO L495 AbstractCegarLoop]: Abstraction has has 471 places, 464 transitions, 1122 flow [2023-11-23 22:26:39,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 546.6666666666666) internal successors, (1640), 3 states have internal predecessors, (1640), 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) [2023-11-23 22:26:39,005 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:26:39,006 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:39,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-23 22:26:39,006 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread3Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-23 22:26:39,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:39,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1670809046, now seen corresponding path program 1 times [2023-11-23 22:26:39,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:39,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163743720] [2023-11-23 22:26:39,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:39,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:39,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:39,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:26:39,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:39,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163743720] [2023-11-23 22:26:39,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163743720] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:39,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:39,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:26:39,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580809655] [2023-11-23 22:26:39,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:39,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:26:39,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:39,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:26:39,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:26:39,172 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 542 out of 587 [2023-11-23 22:26:39,175 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 464 transitions, 1122 flow. Second operand has 3 states, 3 states have (on average 546.3333333333334) internal successors, (1639), 3 states have internal predecessors, (1639), 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) [2023-11-23 22:26:39,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:26:39,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 542 of 587 [2023-11-23 22:26:39,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:26:40,576 INFO L124 PetriNetUnfolderBase]: 464/4543 cut-off events. [2023-11-23 22:26:40,576 INFO L125 PetriNetUnfolderBase]: For 488/497 co-relation queries the response was YES. [2023-11-23 22:26:40,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6563 conditions, 4543 events. 464/4543 cut-off events. For 488/497 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 46312 event pairs, 316 based on Foata normal form. 0/4155 useless extension candidates. Maximal degree in co-relation 5792. Up to 853 conditions per place. [2023-11-23 22:26:40,657 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 38 selfloop transitions, 2 changer transitions 0/466 dead transitions. [2023-11-23 22:26:40,657 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 466 transitions, 1209 flow [2023-11-23 22:26:40,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:26:40,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:26:40,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1665 transitions. [2023-11-23 22:26:40,662 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9454855195911414 [2023-11-23 22:26:40,662 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1665 transitions. [2023-11-23 22:26:40,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1665 transitions. [2023-11-23 22:26:40,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:26:40,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1665 transitions. [2023-11-23 22:26:40,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.0) internal successors, (1665), 3 states have internal predecessors, (1665), 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) [2023-11-23 22:26:40,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:40,670 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:40,670 INFO L175 Difference]: Start difference. First operand has 471 places, 464 transitions, 1122 flow. Second operand 3 states and 1665 transitions. [2023-11-23 22:26:40,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 466 transitions, 1209 flow [2023-11-23 22:26:40,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 470 places, 466 transitions, 1205 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:26:40,683 INFO L231 Difference]: Finished difference. Result has 470 places, 463 transitions, 1120 flow [2023-11-23 22:26:40,684 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1116, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1120, PETRI_PLACES=470, PETRI_TRANSITIONS=463} [2023-11-23 22:26:40,685 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -86 predicate places. [2023-11-23 22:26:40,685 INFO L495 AbstractCegarLoop]: Abstraction has has 470 places, 463 transitions, 1120 flow [2023-11-23 22:26:40,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 546.3333333333334) internal successors, (1639), 3 states have internal predecessors, (1639), 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) [2023-11-23 22:26:40,685 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:26:40,686 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:40,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-23 22:26:40,686 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-23 22:26:40,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:40,687 INFO L85 PathProgramCache]: Analyzing trace with hash -890867753, now seen corresponding path program 1 times [2023-11-23 22:26:40,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:40,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753517420] [2023-11-23 22:26:40,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:40,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:40,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:40,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:26:40,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:40,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753517420] [2023-11-23 22:26:40,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753517420] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:40,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:40,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:26:40,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071924223] [2023-11-23 22:26:40,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:40,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:26:40,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:40,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:26:40,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:26:40,854 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 543 out of 587 [2023-11-23 22:26:40,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 463 transitions, 1120 flow. Second operand has 3 states, 3 states have (on average 548.3333333333334) internal successors, (1645), 3 states have internal predecessors, (1645), 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) [2023-11-23 22:26:40,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:26:40,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 543 of 587 [2023-11-23 22:26:40,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:26:42,980 INFO L124 PetriNetUnfolderBase]: 716/6519 cut-off events. [2023-11-23 22:26:42,980 INFO L125 PetriNetUnfolderBase]: For 595/598 co-relation queries the response was YES. [2023-11-23 22:26:43,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9535 conditions, 6519 events. 716/6519 cut-off events. For 595/598 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 72173 event pairs, 499 based on Foata normal form. 0/5995 useless extension candidates. Maximal degree in co-relation 8501. Up to 1234 conditions per place. [2023-11-23 22:26:43,174 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 36 selfloop transitions, 2 changer transitions 0/465 dead transitions. [2023-11-23 22:26:43,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 465 transitions, 1203 flow [2023-11-23 22:26:43,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:26:43,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:26:43,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1667 transitions. [2023-11-23 22:26:43,180 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9466212379329926 [2023-11-23 22:26:43,180 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1667 transitions. [2023-11-23 22:26:43,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1667 transitions. [2023-11-23 22:26:43,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:26:43,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1667 transitions. [2023-11-23 22:26:43,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.6666666666666) internal successors, (1667), 3 states have internal predecessors, (1667), 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) [2023-11-23 22:26:43,189 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:43,190 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:43,190 INFO L175 Difference]: Start difference. First operand has 470 places, 463 transitions, 1120 flow. Second operand 3 states and 1667 transitions. [2023-11-23 22:26:43,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 465 transitions, 1203 flow [2023-11-23 22:26:43,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 465 transitions, 1199 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:26:43,208 INFO L231 Difference]: Finished difference. Result has 469 places, 462 transitions, 1118 flow [2023-11-23 22:26:43,209 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1114, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=460, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1118, PETRI_PLACES=469, PETRI_TRANSITIONS=462} [2023-11-23 22:26:43,210 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -87 predicate places. [2023-11-23 22:26:43,210 INFO L495 AbstractCegarLoop]: Abstraction has has 469 places, 462 transitions, 1118 flow [2023-11-23 22:26:43,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 548.3333333333334) internal successors, (1645), 3 states have internal predecessors, (1645), 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) [2023-11-23 22:26:43,211 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:26:43,211 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:43,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-23 22:26:43,211 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-23 22:26:43,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:43,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1220487798, now seen corresponding path program 1 times [2023-11-23 22:26:43,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:43,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124600381] [2023-11-23 22:26:43,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:43,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:43,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:43,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:26:43,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:43,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124600381] [2023-11-23 22:26:43,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124600381] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:43,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:43,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:26:43,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385990571] [2023-11-23 22:26:43,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:43,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:26:43,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:43,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:26:43,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:26:43,383 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 542 out of 587 [2023-11-23 22:26:43,385 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 469 places, 462 transitions, 1118 flow. Second operand has 3 states, 3 states have (on average 548.0) internal successors, (1644), 3 states have internal predecessors, (1644), 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) [2023-11-23 22:26:43,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:26:43,385 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 542 of 587 [2023-11-23 22:26:43,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:26:44,893 INFO L124 PetriNetUnfolderBase]: 365/4328 cut-off events. [2023-11-23 22:26:44,893 INFO L125 PetriNetUnfolderBase]: For 181/187 co-relation queries the response was YES. [2023-11-23 22:26:44,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6096 conditions, 4328 events. 365/4328 cut-off events. For 181/187 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 42586 event pairs, 226 based on Foata normal form. 0/4000 useless extension candidates. Maximal degree in co-relation 5352. Up to 528 conditions per place. [2023-11-23 22:26:44,996 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 37 selfloop transitions, 2 changer transitions 0/464 dead transitions. [2023-11-23 22:26:44,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 464 transitions, 1203 flow [2023-11-23 22:26:44,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:26:44,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:26:45,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1665 transitions. [2023-11-23 22:26:45,001 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9454855195911414 [2023-11-23 22:26:45,001 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1665 transitions. [2023-11-23 22:26:45,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1665 transitions. [2023-11-23 22:26:45,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:26:45,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1665 transitions. [2023-11-23 22:26:45,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.0) internal successors, (1665), 3 states have internal predecessors, (1665), 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) [2023-11-23 22:26:45,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:45,010 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:45,011 INFO L175 Difference]: Start difference. First operand has 469 places, 462 transitions, 1118 flow. Second operand 3 states and 1665 transitions. [2023-11-23 22:26:45,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 470 places, 464 transitions, 1203 flow [2023-11-23 22:26:45,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 464 transitions, 1199 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:26:45,030 INFO L231 Difference]: Finished difference. Result has 468 places, 461 transitions, 1116 flow [2023-11-23 22:26:45,031 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1112, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1116, PETRI_PLACES=468, PETRI_TRANSITIONS=461} [2023-11-23 22:26:45,032 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -88 predicate places. [2023-11-23 22:26:45,032 INFO L495 AbstractCegarLoop]: Abstraction has has 468 places, 461 transitions, 1116 flow [2023-11-23 22:26:45,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 548.0) internal successors, (1644), 3 states have internal predecessors, (1644), 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) [2023-11-23 22:26:45,032 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:26:45,033 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:45,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-23 22:26:45,033 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread4Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-23 22:26:45,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:45,034 INFO L85 PathProgramCache]: Analyzing trace with hash -759395341, now seen corresponding path program 1 times [2023-11-23 22:26:45,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:45,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816392320] [2023-11-23 22:26:45,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:45,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:45,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:45,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:26:45,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:45,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816392320] [2023-11-23 22:26:45,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816392320] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:45,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:45,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:26:45,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251250342] [2023-11-23 22:26:45,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:45,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:26:45,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:45,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:26:45,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:26:45,239 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 543 out of 587 [2023-11-23 22:26:45,242 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 461 transitions, 1116 flow. Second operand has 3 states, 3 states have (on average 547.6666666666666) internal successors, (1643), 3 states have internal predecessors, (1643), 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) [2023-11-23 22:26:45,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:26:45,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 543 of 587 [2023-11-23 22:26:45,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:26:46,409 INFO L124 PetriNetUnfolderBase]: 264/3559 cut-off events. [2023-11-23 22:26:46,409 INFO L125 PetriNetUnfolderBase]: For 342/347 co-relation queries the response was YES. [2023-11-23 22:26:46,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4848 conditions, 3559 events. 264/3559 cut-off events. For 342/347 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 33318 event pairs, 156 based on Foata normal form. 0/3271 useless extension candidates. Maximal degree in co-relation 4669. Up to 480 conditions per place. [2023-11-23 22:26:46,490 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 36 selfloop transitions, 2 changer transitions 0/463 dead transitions. [2023-11-23 22:26:46,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 463 transitions, 1199 flow [2023-11-23 22:26:46,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:26:46,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:26:46,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1667 transitions. [2023-11-23 22:26:46,496 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9466212379329926 [2023-11-23 22:26:46,496 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1667 transitions. [2023-11-23 22:26:46,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1667 transitions. [2023-11-23 22:26:46,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:26:46,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1667 transitions. [2023-11-23 22:26:46,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.6666666666666) internal successors, (1667), 3 states have internal predecessors, (1667), 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) [2023-11-23 22:26:46,500 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:46,501 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:46,501 INFO L175 Difference]: Start difference. First operand has 468 places, 461 transitions, 1116 flow. Second operand 3 states and 1667 transitions. [2023-11-23 22:26:46,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 463 transitions, 1199 flow [2023-11-23 22:26:46,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 467 places, 463 transitions, 1195 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:26:46,517 INFO L231 Difference]: Finished difference. Result has 467 places, 460 transitions, 1114 flow [2023-11-23 22:26:46,518 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1110, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1114, PETRI_PLACES=467, PETRI_TRANSITIONS=460} [2023-11-23 22:26:46,519 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -89 predicate places. [2023-11-23 22:26:46,519 INFO L495 AbstractCegarLoop]: Abstraction has has 467 places, 460 transitions, 1114 flow [2023-11-23 22:26:46,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 547.6666666666666) internal successors, (1643), 3 states have internal predecessors, (1643), 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) [2023-11-23 22:26:46,520 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:26:46,521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:46,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-23 22:26:46,521 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-23 22:26:46,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:46,522 INFO L85 PathProgramCache]: Analyzing trace with hash -38665850, now seen corresponding path program 1 times [2023-11-23 22:26:46,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:46,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117457082] [2023-11-23 22:26:46,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:46,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:46,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:47,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:26:47,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:47,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117457082] [2023-11-23 22:26:47,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117457082] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:47,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:47,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:26:47,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522554170] [2023-11-23 22:26:47,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:47,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:26:47,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:47,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:26:47,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:26:47,429 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 562 out of 587 [2023-11-23 22:26:47,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 460 transitions, 1114 flow. Second operand has 6 states, 6 states have (on average 564.0) internal successors, (3384), 6 states have internal predecessors, (3384), 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) [2023-11-23 22:26:47,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:26:47,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 562 of 587 [2023-11-23 22:26:47,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:26:48,317 INFO L124 PetriNetUnfolderBase]: 88/2640 cut-off events. [2023-11-23 22:26:48,317 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-11-23 22:26:48,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3291 conditions, 2640 events. 88/2640 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 21781 event pairs, 8 based on Foata normal form. 0/2427 useless extension candidates. Maximal degree in co-relation 2772. Up to 112 conditions per place. [2023-11-23 22:26:48,367 INFO L140 encePairwiseOnDemand]: 582/587 looper letters, 10 selfloop transitions, 4 changer transitions 0/459 dead transitions. [2023-11-23 22:26:48,367 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 459 transitions, 1140 flow [2023-11-23 22:26:48,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:26:48,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:26:48,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3387 transitions. [2023-11-23 22:26:48,375 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9616695059625213 [2023-11-23 22:26:48,375 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3387 transitions. [2023-11-23 22:26:48,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3387 transitions. [2023-11-23 22:26:48,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:26:48,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3387 transitions. [2023-11-23 22:26:48,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 564.5) internal successors, (3387), 6 states have internal predecessors, (3387), 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) [2023-11-23 22:26:48,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 587.0) internal successors, (4109), 7 states have internal predecessors, (4109), 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) [2023-11-23 22:26:48,388 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 587.0) internal successors, (4109), 7 states have internal predecessors, (4109), 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) [2023-11-23 22:26:48,388 INFO L175 Difference]: Start difference. First operand has 467 places, 460 transitions, 1114 flow. Second operand 6 states and 3387 transitions. [2023-11-23 22:26:48,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 459 transitions, 1140 flow [2023-11-23 22:26:48,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 459 transitions, 1136 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:26:48,403 INFO L231 Difference]: Finished difference. Result has 469 places, 459 transitions, 1116 flow [2023-11-23 22:26:48,403 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1108, PETRI_DIFFERENCE_MINUEND_PLACES=464, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1116, PETRI_PLACES=469, PETRI_TRANSITIONS=459} [2023-11-23 22:26:48,404 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -87 predicate places. [2023-11-23 22:26:48,404 INFO L495 AbstractCegarLoop]: Abstraction has has 469 places, 459 transitions, 1116 flow [2023-11-23 22:26:48,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 564.0) internal successors, (3384), 6 states have internal predecessors, (3384), 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) [2023-11-23 22:26:48,405 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:26:48,405 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:48,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-23 22:26:48,406 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thread3Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-23 22:26:48,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:48,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1625987681, now seen corresponding path program 1 times [2023-11-23 22:26:48,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:48,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325928922] [2023-11-23 22:26:48,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:48,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:48,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:48,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:26:48,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:48,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325928922] [2023-11-23 22:26:48,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325928922] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:48,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:48,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:26:48,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812508721] [2023-11-23 22:26:48,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:48,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:26:48,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:48,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:26:48,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:26:48,584 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 542 out of 587 [2023-11-23 22:26:48,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 469 places, 459 transitions, 1116 flow. Second operand has 3 states, 3 states have (on average 547.3333333333334) internal successors, (1642), 3 states have internal predecessors, (1642), 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) [2023-11-23 22:26:48,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:26:48,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 542 of 587 [2023-11-23 22:26:48,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:26:50,055 INFO L124 PetriNetUnfolderBase]: 464/4510 cut-off events. [2023-11-23 22:26:50,055 INFO L125 PetriNetUnfolderBase]: For 479/488 co-relation queries the response was YES. [2023-11-23 22:26:50,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6596 conditions, 4510 events. 464/4510 cut-off events. For 479/488 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 45779 event pairs, 316 based on Foata normal form. 0/4185 useless extension candidates. Maximal degree in co-relation 5791. Up to 853 conditions per place. [2023-11-23 22:26:50,150 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 38 selfloop transitions, 2 changer transitions 0/461 dead transitions. [2023-11-23 22:26:50,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 461 transitions, 1203 flow [2023-11-23 22:26:50,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:26:50,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:26:50,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1665 transitions. [2023-11-23 22:26:50,155 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9454855195911414 [2023-11-23 22:26:50,155 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1665 transitions. [2023-11-23 22:26:50,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1665 transitions. [2023-11-23 22:26:50,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:26:50,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1665 transitions. [2023-11-23 22:26:50,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.0) internal successors, (1665), 3 states have internal predecessors, (1665), 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) [2023-11-23 22:26:50,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:50,160 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:50,161 INFO L175 Difference]: Start difference. First operand has 469 places, 459 transitions, 1116 flow. Second operand 3 states and 1665 transitions. [2023-11-23 22:26:50,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 470 places, 461 transitions, 1203 flow [2023-11-23 22:26:50,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 466 places, 461 transitions, 1196 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-23 22:26:50,173 INFO L231 Difference]: Finished difference. Result has 466 places, 458 transitions, 1111 flow [2023-11-23 22:26:50,173 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1107, PETRI_DIFFERENCE_MINUEND_PLACES=464, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=458, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1111, PETRI_PLACES=466, PETRI_TRANSITIONS=458} [2023-11-23 22:26:50,174 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -90 predicate places. [2023-11-23 22:26:50,174 INFO L495 AbstractCegarLoop]: Abstraction has has 466 places, 458 transitions, 1111 flow [2023-11-23 22:26:50,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 547.3333333333334) internal successors, (1642), 3 states have internal predecessors, (1642), 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) [2023-11-23 22:26:50,174 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:26:50,175 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:50,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-23 22:26:50,175 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting thread2Err13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-23 22:26:50,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:50,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1783977578, now seen corresponding path program 1 times [2023-11-23 22:26:50,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:50,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488272432] [2023-11-23 22:26:50,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:50,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:50,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:26:50,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:50,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488272432] [2023-11-23 22:26:50,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488272432] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:50,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:50,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:26:50,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363708796] [2023-11-23 22:26:50,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:50,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:26:50,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:50,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:26:50,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:26:50,344 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 543 out of 587 [2023-11-23 22:26:50,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 458 transitions, 1111 flow. Second operand has 3 states, 3 states have (on average 549.3333333333334) internal successors, (1648), 3 states have internal predecessors, (1648), 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) [2023-11-23 22:26:50,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:26:50,346 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 543 of 587 [2023-11-23 22:26:50,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:26:52,786 INFO L124 PetriNetUnfolderBase]: 728/6751 cut-off events. [2023-11-23 22:26:52,786 INFO L125 PetriNetUnfolderBase]: For 595/598 co-relation queries the response was YES. [2023-11-23 22:26:52,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9878 conditions, 6751 events. 728/6751 cut-off events. For 595/598 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 74624 event pairs, 499 based on Foata normal form. 0/6310 useless extension candidates. Maximal degree in co-relation 9006. Up to 1234 conditions per place. [2023-11-23 22:26:53,020 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 36 selfloop transitions, 2 changer transitions 0/460 dead transitions. [2023-11-23 22:26:53,021 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 467 places, 460 transitions, 1194 flow [2023-11-23 22:26:53,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:26:53,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:26:53,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1667 transitions. [2023-11-23 22:26:53,026 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9466212379329926 [2023-11-23 22:26:53,026 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1667 transitions. [2023-11-23 22:26:53,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1667 transitions. [2023-11-23 22:26:53,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:26:53,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1667 transitions. [2023-11-23 22:26:53,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.6666666666666) internal successors, (1667), 3 states have internal predecessors, (1667), 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) [2023-11-23 22:26:53,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:53,031 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 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) [2023-11-23 22:26:53,032 INFO L175 Difference]: Start difference. First operand has 466 places, 458 transitions, 1111 flow. Second operand 3 states and 1667 transitions. [2023-11-23 22:26:53,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 467 places, 460 transitions, 1194 flow [2023-11-23 22:26:53,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 460 transitions, 1190 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:26:53,047 INFO L231 Difference]: Finished difference. Result has 465 places, 457 transitions, 1109 flow [2023-11-23 22:26:53,048 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1105, PETRI_DIFFERENCE_MINUEND_PLACES=463, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1109, PETRI_PLACES=465, PETRI_TRANSITIONS=457} [2023-11-23 22:26:53,048 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -91 predicate places. [2023-11-23 22:26:53,049 INFO L495 AbstractCegarLoop]: Abstraction has has 465 places, 457 transitions, 1109 flow [2023-11-23 22:26:53,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 549.3333333333334) internal successors, (1648), 3 states have internal predecessors, (1648), 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) [2023-11-23 22:26:53,049 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:26:53,049 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:26:53,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-23 22:26:53,050 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting thread1Err16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-23 22:26:53,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:26:53,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1766475863, now seen corresponding path program 1 times [2023-11-23 22:26:53,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:26:53,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003655159] [2023-11-23 22:26:53,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:26:53,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:26:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:26:53,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:26:53,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:26:53,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003655159] [2023-11-23 22:26:53,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003655159] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:26:53,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:26:53,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:26:53,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866859424] [2023-11-23 22:26:53,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:26:53,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:26:53,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:26:53,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:26:53,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:26:53,243 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 542 out of 587 [2023-11-23 22:26:53,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 465 places, 457 transitions, 1109 flow. Second operand has 3 states, 3 states have (on average 549.0) internal successors, (1647), 3 states have internal predecessors, (1647), 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) [2023-11-23 22:26:53,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:26:53,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 542 of 587 [2023-11-23 22:26:53,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:26:54,359 INFO L124 PetriNetUnfolderBase]: 365/4277 cut-off events. [2023-11-23 22:26:54,359 INFO L125 PetriNetUnfolderBase]: For 181/187 co-relation queries the response was YES.