./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/array-eq-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d343afbe-082a-481d-beda-039274887b29/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d343afbe-082a-481d-beda-039274887b29/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d343afbe-082a-481d-beda-039274887b29/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d343afbe-082a-481d-beda-039274887b29/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/array-eq-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d343afbe-082a-481d-beda-039274887b29/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d343afbe-082a-481d-beda-039274887b29/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 23bd321b64eb98f17ff91aefc669d9f5b78966b876ea50803bd27f8c9b624679 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:35:58,166 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:35:58,246 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d343afbe-082a-481d-beda-039274887b29/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 22:35:58,253 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:35:58,254 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:35:58,286 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:35:58,287 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:35:58,287 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:35:58,288 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:35:58,289 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:35:58,290 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:35:58,291 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:35:58,292 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:35:58,293 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:35:58,293 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:35:58,294 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:35:58,295 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:35:58,296 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:35:58,296 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:35:58,297 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:35:58,298 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:35:58,299 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:35:58,299 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 22:35:58,300 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:35:58,301 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:35:58,301 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:35:58,302 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:35:58,302 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:35:58,303 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:35:58,304 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:35:58,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:35:58,305 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:35:58,305 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:35:58,306 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:35:58,306 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:35:58,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:35:58,307 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:35:58,308 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:35:58,308 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:35:58,308 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:35:58,309 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:35:58,309 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_d343afbe-082a-481d-beda-039274887b29/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d343afbe-082a-481d-beda-039274887b29/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23bd321b64eb98f17ff91aefc669d9f5b78966b876ea50803bd27f8c9b624679 [2023-11-06 22:35:58,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:35:58,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:35:58,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:35:58,697 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:35:58,697 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:35:58,700 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d343afbe-082a-481d-beda-039274887b29/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/array-eq-trans.wvr.c [2023-11-06 22:36:02,258 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:36:02,510 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:36:02,511 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d343afbe-082a-481d-beda-039274887b29/sv-benchmarks/c/weaver/array-eq-trans.wvr.c [2023-11-06 22:36:02,520 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d343afbe-082a-481d-beda-039274887b29/bin/uautomizer-verify-WvqO1wxjHP/data/953a3a285/7daa3862c46140e481df6a2530f6bfe3/FLAGaedcaa25f [2023-11-06 22:36:02,543 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d343afbe-082a-481d-beda-039274887b29/bin/uautomizer-verify-WvqO1wxjHP/data/953a3a285/7daa3862c46140e481df6a2530f6bfe3 [2023-11-06 22:36:02,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:36:02,549 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:36:02,551 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:36:02,551 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:36:02,563 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:36:02,567 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:36:02" (1/1) ... [2023-11-06 22:36:02,568 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@421b0de9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:02, skipping insertion in model container [2023-11-06 22:36:02,569 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:36:02" (1/1) ... [2023-11-06 22:36:02,602 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:36:02,884 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:36:02,898 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:36:02,961 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:36:02,982 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:36:02,983 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:02 WrapperNode [2023-11-06 22:36:02,983 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:36:02,984 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:36:02,986 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:36:02,987 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:36:02,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:02" (1/1) ... [2023-11-06 22:36:03,014 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:02" (1/1) ... [2023-11-06 22:36:03,083 INFO L138 Inliner]: procedures = 24, calls = 47, calls flagged for inlining = 11, calls inlined = 15, statements flattened = 358 [2023-11-06 22:36:03,083 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:36:03,084 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:36:03,085 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:36:03,085 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:36:03,097 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:02" (1/1) ... [2023-11-06 22:36:03,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:02" (1/1) ... [2023-11-06 22:36:03,109 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:02" (1/1) ... [2023-11-06 22:36:03,110 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:02" (1/1) ... [2023-11-06 22:36:03,173 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:02" (1/1) ... [2023-11-06 22:36:03,181 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:02" (1/1) ... [2023-11-06 22:36:03,184 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:02" (1/1) ... [2023-11-06 22:36:03,188 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:02" (1/1) ... [2023-11-06 22:36:03,195 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:36:03,197 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:36:03,197 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:36:03,197 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:36:03,198 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:02" (1/1) ... [2023-11-06 22:36:03,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:36:03,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d343afbe-082a-481d-beda-039274887b29/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:03,257 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d343afbe-082a-481d-beda-039274887b29/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:03,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d343afbe-082a-481d-beda-039274887b29/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:36:03,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:36:03,324 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 22:36:03,325 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 22:36:03,325 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 22:36:03,325 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 22:36:03,325 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-06 22:36:03,326 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-06 22:36:03,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:36:03,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:36:03,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:36:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:36:03,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:36:03,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:36:03,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:36:03,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:36:03,333 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:36:03,565 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:36:03,567 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:36:04,888 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:36:04,918 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:36:04,918 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-06 22:36:04,923 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:36:04 BoogieIcfgContainer [2023-11-06 22:36:04,924 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:36:04,930 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:36:04,930 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:36:04,934 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:36:04,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:36:02" (1/3) ... [2023-11-06 22:36:04,936 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3817095d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:36:04, skipping insertion in model container [2023-11-06 22:36:04,936 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:02" (2/3) ... [2023-11-06 22:36:04,937 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3817095d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:36:04, skipping insertion in model container [2023-11-06 22:36:04,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:36:04" (3/3) ... [2023-11-06 22:36:04,940 INFO L112 eAbstractionObserver]: Analyzing ICFG array-eq-trans.wvr.c [2023-11-06 22:36:04,955 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:36:04,969 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:36:04,971 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 81 error locations. [2023-11-06 22:36:04,971 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:36:05,148 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-06 22:36:05,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 629 places, 652 transitions, 1325 flow [2023-11-06 22:36:05,623 INFO L124 PetriNetUnfolderBase]: 33/649 cut-off events. [2023-11-06 22:36:05,624 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 22:36:05,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 662 conditions, 649 events. 33/649 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1336 event pairs, 0 based on Foata normal form. 0/535 useless extension candidates. Maximal degree in co-relation 369. Up to 3 conditions per place. [2023-11-06 22:36:05,639 INFO L82 GeneralOperation]: Start removeDead. Operand has 629 places, 652 transitions, 1325 flow [2023-11-06 22:36:05,658 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 598 places, 618 transitions, 1254 flow [2023-11-06 22:36:05,662 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:36:05,682 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 598 places, 618 transitions, 1254 flow [2023-11-06 22:36:05,686 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 598 places, 618 transitions, 1254 flow [2023-11-06 22:36:05,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 598 places, 618 transitions, 1254 flow [2023-11-06 22:36:05,838 INFO L124 PetriNetUnfolderBase]: 30/618 cut-off events. [2023-11-06 22:36:05,838 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 22:36:05,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 631 conditions, 618 events. 30/618 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1226 event pairs, 0 based on Foata normal form. 0/508 useless extension candidates. Maximal degree in co-relation 369. Up to 3 conditions per place. [2023-11-06 22:36:05,869 INFO L119 LiptonReduction]: Number of co-enabled transitions 35640 [2023-11-06 22:36:40,622 WARN L293 SmtUtils]: Spent 5.39s on a formula simplification that was a NOOP. DAG size: 133 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:36:45,890 WARN L293 SmtUtils]: Spent 5.27s on a formula simplification that was a NOOP. DAG size: 133 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:36:59,857 WARN L293 SmtUtils]: Spent 13.96s on a formula simplification. DAG size of input: 149 DAG size of output: 146 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:37:06,300 WARN L293 SmtUtils]: Spent 6.44s on a formula simplification that was a NOOP. DAG size: 146 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:37:06,398 INFO L134 LiptonReduction]: Checked pairs total: 235441 [2023-11-06 22:37:06,398 INFO L136 LiptonReduction]: Total number of compositions: 711 [2023-11-06 22:37:06,415 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:37:06,420 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2eb2fb12, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:37:06,421 INFO L358 AbstractCegarLoop]: Starting to check reachability of 120 error locations. [2023-11-06 22:37:06,422 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:37:06,423 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 22:37:06,423 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:37:06,423 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:37:06,424 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 22:37:06,425 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-06 22:37:06,430 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:37:06,431 INFO L85 PathProgramCache]: Analyzing trace with hash 2310, now seen corresponding path program 1 times [2023-11-06 22:37:06,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:37:06,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536087594] [2023-11-06 22:37:06,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:06,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:37:06,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:37:06,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:37:06,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:37:06,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536087594] [2023-11-06 22:37:06,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536087594] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:37:06,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:37:06,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 22:37:06,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388626350] [2023-11-06 22:37:06,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:37:06,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:37:06,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:37:06,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:37:06,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:37:06,648 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 630 out of 1363 [2023-11-06 22:37:06,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 181 transitions, 380 flow. Second operand has 2 states, 2 states have (on average 630.5) internal successors, (1261), 2 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:06,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:37:06,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 630 of 1363 [2023-11-06 22:37:06,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:37:09,402 INFO L124 PetriNetUnfolderBase]: 8518/18358 cut-off events. [2023-11-06 22:37:09,403 INFO L125 PetriNetUnfolderBase]: For 471/471 co-relation queries the response was YES. [2023-11-06 22:37:09,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30156 conditions, 18358 events. 8518/18358 cut-off events. For 471/471 co-relation queries the response was YES. Maximal size of possible extension queue 688. Compared 171493 event pairs, 6205 based on Foata normal form. 1086/16013 useless extension candidates. Maximal degree in co-relation 27640. Up to 11428 conditions per place. [2023-11-06 22:37:09,606 INFO L140 encePairwiseOnDemand]: 1300/1363 looper letters, 55 selfloop transitions, 0 changer transitions 1/118 dead transitions. [2023-11-06 22:37:09,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 118 transitions, 366 flow [2023-11-06 22:37:09,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:37:09,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:37:09,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1379 transitions. [2023-11-06 22:37:09,630 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5058694057226706 [2023-11-06 22:37:09,640 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1379 transitions. [2023-11-06 22:37:09,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1379 transitions. [2023-11-06 22:37:09,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:37:09,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1379 transitions. [2023-11-06 22:37:09,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 689.5) internal successors, (1379), 2 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:09,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1363.0) internal successors, (4089), 3 states have internal predecessors, (4089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:09,693 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1363.0) internal successors, (4089), 3 states have internal predecessors, (4089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:09,695 INFO L175 Difference]: Start difference. First operand has 176 places, 181 transitions, 380 flow. Second operand 2 states and 1379 transitions. [2023-11-06 22:37:09,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 118 transitions, 366 flow [2023-11-06 22:37:09,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 118 transitions, 354 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-06 22:37:09,739 INFO L231 Difference]: Finished difference. Result has 111 places, 117 transitions, 239 flow [2023-11-06 22:37:09,742 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1363, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=239, PETRI_PLACES=111, PETRI_TRANSITIONS=117} [2023-11-06 22:37:09,747 INFO L281 CegarLoopForPetriNet]: 176 programPoint places, -65 predicate places. [2023-11-06 22:37:09,747 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 117 transitions, 239 flow [2023-11-06 22:37:09,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 630.5) internal successors, (1261), 2 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:09,749 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:37:09,753 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:37:09,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:37:09,753 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-06 22:37:09,754 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:37:09,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1061606575, now seen corresponding path program 1 times [2023-11-06 22:37:09,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:37:09,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087005779] [2023-11-06 22:37:09,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:09,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:37:09,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:37:10,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:37:10,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:37:10,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087005779] [2023-11-06 22:37:10,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087005779] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:37:10,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:37:10,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:37:10,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106210367] [2023-11-06 22:37:10,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:37:10,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:37:10,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:37:10,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:37:10,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:37:10,102 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 614 out of 1363 [2023-11-06 22:37:10,106 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 117 transitions, 239 flow. Second operand has 3 states, 3 states have (on average 616.3333333333334) internal successors, (1849), 3 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:10,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:37:10,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 614 of 1363 [2023-11-06 22:37:10,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:37:12,416 INFO L124 PetriNetUnfolderBase]: 8518/18286 cut-off events. [2023-11-06 22:37:12,416 INFO L125 PetriNetUnfolderBase]: For 121/121 co-relation queries the response was YES. [2023-11-06 22:37:12,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29837 conditions, 18286 events. 8518/18286 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 688. Compared 170174 event pairs, 6205 based on Foata normal form. 0/14855 useless extension candidates. Maximal degree in co-relation 29834. Up to 11426 conditions per place. [2023-11-06 22:37:12,619 INFO L140 encePairwiseOnDemand]: 1360/1363 looper letters, 54 selfloop transitions, 1 changer transitions 0/115 dead transitions. [2023-11-06 22:37:12,619 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 115 transitions, 345 flow [2023-11-06 22:37:12,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:37:12,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:37:12,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1899 transitions. [2023-11-06 22:37:12,629 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4644167278063096 [2023-11-06 22:37:12,630 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1899 transitions. [2023-11-06 22:37:12,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1899 transitions. [2023-11-06 22:37:12,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:37:12,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1899 transitions. [2023-11-06 22:37:12,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 633.0) internal successors, (1899), 3 states have internal predecessors, (1899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:12,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1363.0) internal successors, (5452), 4 states have internal predecessors, (5452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:12,669 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1363.0) internal successors, (5452), 4 states have internal predecessors, (5452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:12,670 INFO L175 Difference]: Start difference. First operand has 111 places, 117 transitions, 239 flow. Second operand 3 states and 1899 transitions. [2023-11-06 22:37:12,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 115 transitions, 345 flow [2023-11-06 22:37:12,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 115 transitions, 345 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:37:12,677 INFO L231 Difference]: Finished difference. Result has 110 places, 115 transitions, 237 flow [2023-11-06 22:37:12,684 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1363, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=237, PETRI_PLACES=110, PETRI_TRANSITIONS=115} [2023-11-06 22:37:12,686 INFO L281 CegarLoopForPetriNet]: 176 programPoint places, -66 predicate places. [2023-11-06 22:37:12,686 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 115 transitions, 237 flow [2023-11-06 22:37:12,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 616.3333333333334) internal successors, (1849), 3 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:12,689 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:37:12,689 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:37:12,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:37:12,689 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-06 22:37:12,690 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:37:12,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1998907894, now seen corresponding path program 1 times [2023-11-06 22:37:12,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:37:12,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033909791] [2023-11-06 22:37:12,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:12,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:37:12,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:37:12,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:37:12,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:37:12,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033909791] [2023-11-06 22:37:12,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033909791] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:37:12,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:37:12,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:37:12,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920643119] [2023-11-06 22:37:12,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:37:12,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:37:12,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:37:12,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:37:12,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:37:13,030 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 614 out of 1363 [2023-11-06 22:37:13,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 115 transitions, 237 flow. Second operand has 3 states, 3 states have (on average 617.0) internal successors, (1851), 3 states have internal predecessors, (1851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:13,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:37:13,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 614 of 1363 [2023-11-06 22:37:13,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:37:15,038 INFO L124 PetriNetUnfolderBase]: 8518/18276 cut-off events. [2023-11-06 22:37:15,038 INFO L125 PetriNetUnfolderBase]: For 121/121 co-relation queries the response was YES. [2023-11-06 22:37:15,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29829 conditions, 18276 events. 8518/18276 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 688. Compared 170094 event pairs, 6205 based on Foata normal form. 0/14845 useless extension candidates. Maximal degree in co-relation 29825. Up to 11424 conditions per place. [2023-11-06 22:37:15,181 INFO L140 encePairwiseOnDemand]: 1360/1363 looper letters, 54 selfloop transitions, 1 changer transitions 0/113 dead transitions. [2023-11-06 22:37:15,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 113 transitions, 343 flow [2023-11-06 22:37:15,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:37:15,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:37:15,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1899 transitions. [2023-11-06 22:37:15,191 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4644167278063096 [2023-11-06 22:37:15,192 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1899 transitions. [2023-11-06 22:37:15,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1899 transitions. [2023-11-06 22:37:15,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:37:15,194 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1899 transitions. [2023-11-06 22:37:15,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 633.0) internal successors, (1899), 3 states have internal predecessors, (1899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:15,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1363.0) internal successors, (5452), 4 states have internal predecessors, (5452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:15,219 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1363.0) internal successors, (5452), 4 states have internal predecessors, (5452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:15,219 INFO L175 Difference]: Start difference. First operand has 110 places, 115 transitions, 237 flow. Second operand 3 states and 1899 transitions. [2023-11-06 22:37:15,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 113 transitions, 343 flow [2023-11-06 22:37:15,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 113 transitions, 342 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:37:15,227 INFO L231 Difference]: Finished difference. Result has 109 places, 113 transitions, 234 flow [2023-11-06 22:37:15,227 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1363, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=234, PETRI_PLACES=109, PETRI_TRANSITIONS=113} [2023-11-06 22:37:15,229 INFO L281 CegarLoopForPetriNet]: 176 programPoint places, -67 predicate places. [2023-11-06 22:37:15,230 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 113 transitions, 234 flow [2023-11-06 22:37:15,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 617.0) internal successors, (1851), 3 states have internal predecessors, (1851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:15,232 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:37:15,232 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:37:15,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:37:15,233 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-06 22:37:15,233 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:37:15,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1998911585, now seen corresponding path program 1 times [2023-11-06 22:37:15,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:37:15,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995272973] [2023-11-06 22:37:15,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:15,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:37:15,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:37:15,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:37:15,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:37:15,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995272973] [2023-11-06 22:37:15,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995272973] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:37:15,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:37:15,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:37:15,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114079262] [2023-11-06 22:37:15,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:37:15,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:37:15,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:37:15,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:37:15,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:37:15,358 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 622 out of 1363 [2023-11-06 22:37:15,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 113 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 624.6666666666666) internal successors, (1874), 3 states have internal predecessors, (1874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:15,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:37:15,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 622 of 1363 [2023-11-06 22:37:15,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:37:17,233 INFO L124 PetriNetUnfolderBase]: 9198/19525 cut-off events. [2023-11-06 22:37:17,234 INFO L125 PetriNetUnfolderBase]: For 121/121 co-relation queries the response was YES. [2023-11-06 22:37:17,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32012 conditions, 19525 events. 9198/19525 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 639. Compared 179892 event pairs, 6205 based on Foata normal form. 0/15972 useless extension candidates. Maximal degree in co-relation 32008. Up to 11427 conditions per place. [2023-11-06 22:37:17,401 INFO L140 encePairwiseOnDemand]: 1360/1363 looper letters, 84 selfloop transitions, 2 changer transitions 0/144 dead transitions. [2023-11-06 22:37:17,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 144 transitions, 470 flow [2023-11-06 22:37:17,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:37:17,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:37:17,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1953 transitions. [2023-11-06 22:37:17,411 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4776228906823184 [2023-11-06 22:37:17,412 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1953 transitions. [2023-11-06 22:37:17,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1953 transitions. [2023-11-06 22:37:17,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:37:17,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1953 transitions. [2023-11-06 22:37:17,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 651.0) internal successors, (1953), 3 states have internal predecessors, (1953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:17,437 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1363.0) internal successors, (5452), 4 states have internal predecessors, (5452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:17,442 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1363.0) internal successors, (5452), 4 states have internal predecessors, (5452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:17,443 INFO L175 Difference]: Start difference. First operand has 109 places, 113 transitions, 234 flow. Second operand 3 states and 1953 transitions. [2023-11-06 22:37:17,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 144 transitions, 470 flow [2023-11-06 22:37:17,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 144 transitions, 469 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:37:17,451 INFO L231 Difference]: Finished difference. Result has 111 places, 114 transitions, 245 flow [2023-11-06 22:37:17,452 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1363, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=245, PETRI_PLACES=111, PETRI_TRANSITIONS=114} [2023-11-06 22:37:17,454 INFO L281 CegarLoopForPetriNet]: 176 programPoint places, -65 predicate places. [2023-11-06 22:37:17,454 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 114 transitions, 245 flow [2023-11-06 22:37:17,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 624.6666666666666) internal successors, (1874), 3 states have internal predecessors, (1874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:17,458 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:37:17,459 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:37:17,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:37:17,459 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-06 22:37:17,459 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:37:17,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1100401404, now seen corresponding path program 1 times [2023-11-06 22:37:17,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:37:17,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109473441] [2023-11-06 22:37:17,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:17,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:37:17,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:37:17,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:37:17,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:37:17,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109473441] [2023-11-06 22:37:17,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109473441] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:37:17,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:37:17,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:37:17,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537896863] [2023-11-06 22:37:17,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:37:17,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:37:17,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:37:17,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:37:17,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:37:17,600 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 617 out of 1363 [2023-11-06 22:37:17,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 114 transitions, 245 flow. Second operand has 3 states, 3 states have (on average 620.6666666666666) internal successors, (1862), 3 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:17,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:37:17,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 617 of 1363 [2023-11-06 22:37:17,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:37:20,154 INFO L124 PetriNetUnfolderBase]: 12368/23842 cut-off events. [2023-11-06 22:37:20,154 INFO L125 PetriNetUnfolderBase]: For 2009/2009 co-relation queries the response was YES. [2023-11-06 22:37:20,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42623 conditions, 23842 events. 12368/23842 cut-off events. For 2009/2009 co-relation queries the response was YES. Maximal size of possible extension queue 703. Compared 207225 event pairs, 2633 based on Foata normal form. 0/19822 useless extension candidates. Maximal degree in co-relation 42618. Up to 12644 conditions per place. [2023-11-06 22:37:20,322 INFO L140 encePairwiseOnDemand]: 1359/1363 looper letters, 90 selfloop transitions, 2 changer transitions 0/148 dead transitions. [2023-11-06 22:37:20,322 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 148 transitions, 511 flow [2023-11-06 22:37:20,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:37:20,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:37:20,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1943 transitions. [2023-11-06 22:37:20,332 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.475177304964539 [2023-11-06 22:37:20,332 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1943 transitions. [2023-11-06 22:37:20,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1943 transitions. [2023-11-06 22:37:20,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:37:20,335 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1943 transitions. [2023-11-06 22:37:20,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 647.6666666666666) internal successors, (1943), 3 states have internal predecessors, (1943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:20,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1363.0) internal successors, (5452), 4 states have internal predecessors, (5452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:20,354 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1363.0) internal successors, (5452), 4 states have internal predecessors, (5452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:20,355 INFO L175 Difference]: Start difference. First operand has 111 places, 114 transitions, 245 flow. Second operand 3 states and 1943 transitions. [2023-11-06 22:37:20,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 148 transitions, 511 flow [2023-11-06 22:37:20,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 148 transitions, 507 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:37:20,364 INFO L231 Difference]: Finished difference. Result has 111 places, 114 transitions, 255 flow [2023-11-06 22:37:20,365 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1363, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=255, PETRI_PLACES=111, PETRI_TRANSITIONS=114} [2023-11-06 22:37:20,368 INFO L281 CegarLoopForPetriNet]: 176 programPoint places, -65 predicate places. [2023-11-06 22:37:20,369 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 114 transitions, 255 flow [2023-11-06 22:37:20,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 620.6666666666666) internal successors, (1862), 3 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:20,370 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:37:20,371 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:37:20,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:37:20,371 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-06 22:37:20,371 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:37:20,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1911500475, now seen corresponding path program 1 times [2023-11-06 22:37:20,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:37:20,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651343608] [2023-11-06 22:37:20,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:20,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:37:20,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:37:20,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:37:20,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:37:20,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651343608] [2023-11-06 22:37:20,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651343608] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:37:20,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:37:20,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:37:20,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846026110] [2023-11-06 22:37:20,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:37:20,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:37:20,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:37:20,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:37:20,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:37:20,469 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 622 out of 1363 [2023-11-06 22:37:20,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 114 transitions, 255 flow. Second operand has 3 states, 3 states have (on average 625.3333333333334) internal successors, (1876), 3 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:20,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:37:20,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 622 of 1363 [2023-11-06 22:37:20,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:37:23,038 INFO L124 PetriNetUnfolderBase]: 13512/26573 cut-off events. [2023-11-06 22:37:23,038 INFO L125 PetriNetUnfolderBase]: For 2768/2768 co-relation queries the response was YES. [2023-11-06 22:37:23,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47927 conditions, 26573 events. 13512/26573 cut-off events. For 2768/2768 co-relation queries the response was YES. Maximal size of possible extension queue 811. Compared 239104 event pairs, 8999 based on Foata normal form. 0/23226 useless extension candidates. Maximal degree in co-relation 47922. Up to 16645 conditions per place. [2023-11-06 22:37:23,253 INFO L140 encePairwiseOnDemand]: 1360/1363 looper letters, 91 selfloop transitions, 2 changer transitions 0/149 dead transitions. [2023-11-06 22:37:23,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 149 transitions, 533 flow [2023-11-06 22:37:23,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:37:23,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:37:23,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1954 transitions. [2023-11-06 22:37:23,263 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47786744925409635 [2023-11-06 22:37:23,263 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1954 transitions. [2023-11-06 22:37:23,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1954 transitions. [2023-11-06 22:37:23,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:37:23,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1954 transitions. [2023-11-06 22:37:23,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 651.3333333333334) internal successors, (1954), 3 states have internal predecessors, (1954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:23,299 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1363.0) internal successors, (5452), 4 states have internal predecessors, (5452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:23,301 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1363.0) internal successors, (5452), 4 states have internal predecessors, (5452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:23,301 INFO L175 Difference]: Start difference. First operand has 111 places, 114 transitions, 255 flow. Second operand 3 states and 1954 transitions. [2023-11-06 22:37:23,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 149 transitions, 533 flow [2023-11-06 22:37:23,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 149 transitions, 533 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:37:23,585 INFO L231 Difference]: Finished difference. Result has 114 places, 115 transitions, 267 flow [2023-11-06 22:37:23,585 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1363, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=267, PETRI_PLACES=114, PETRI_TRANSITIONS=115} [2023-11-06 22:37:23,586 INFO L281 CegarLoopForPetriNet]: 176 programPoint places, -62 predicate places. [2023-11-06 22:37:23,586 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 115 transitions, 267 flow [2023-11-06 22:37:23,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 625.3333333333334) internal successors, (1876), 3 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:23,587 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:37:23,587 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:37:23,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:37:23,588 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-06 22:37:23,588 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:37:23,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1911505034, now seen corresponding path program 1 times [2023-11-06 22:37:23,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:37:23,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202068466] [2023-11-06 22:37:23,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:23,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:37:23,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:37:23,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:37:23,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:37:23,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202068466] [2023-11-06 22:37:23,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202068466] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:37:23,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:37:23,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:37:23,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992068304] [2023-11-06 22:37:23,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:37:23,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:37:23,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:37:23,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:37:23,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:37:23,690 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 614 out of 1363 [2023-11-06 22:37:23,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 115 transitions, 267 flow. Second operand has 3 states, 3 states have (on average 617.6666666666666) internal successors, (1853), 3 states have internal predecessors, (1853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:23,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:37:23,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 614 of 1363 [2023-11-06 22:37:23,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:37:26,063 INFO L124 PetriNetUnfolderBase]: 13512/26812 cut-off events. [2023-11-06 22:37:26,063 INFO L125 PetriNetUnfolderBase]: For 4737/4737 co-relation queries the response was YES. [2023-11-06 22:37:26,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50268 conditions, 26812 events. 13512/26812 cut-off events. For 4737/4737 co-relation queries the response was YES. Maximal size of possible extension queue 828. Compared 243543 event pairs, 9934 based on Foata normal form. 0/23825 useless extension candidates. Maximal degree in co-relation 50261. Up to 18204 conditions per place. [2023-11-06 22:37:26,255 INFO L140 encePairwiseOnDemand]: 1360/1363 looper letters, 58 selfloop transitions, 1 changer transitions 0/113 dead transitions. [2023-11-06 22:37:26,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 113 transitions, 381 flow [2023-11-06 22:37:26,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:37:26,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:37:26,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1899 transitions. [2023-11-06 22:37:26,266 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4644167278063096 [2023-11-06 22:37:26,266 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1899 transitions. [2023-11-06 22:37:26,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1899 transitions. [2023-11-06 22:37:26,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:37:26,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1899 transitions. [2023-11-06 22:37:26,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 633.0) internal successors, (1899), 3 states have internal predecessors, (1899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:26,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1363.0) internal successors, (5452), 4 states have internal predecessors, (5452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:26,287 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1363.0) internal successors, (5452), 4 states have internal predecessors, (5452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:26,288 INFO L175 Difference]: Start difference. First operand has 114 places, 115 transitions, 267 flow. Second operand 3 states and 1899 transitions. [2023-11-06 22:37:26,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 113 transitions, 381 flow [2023-11-06 22:37:26,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 113 transitions, 379 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:37:26,300 INFO L231 Difference]: Finished difference. Result has 113 places, 113 transitions, 263 flow [2023-11-06 22:37:26,301 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1363, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=263, PETRI_PLACES=113, PETRI_TRANSITIONS=113} [2023-11-06 22:37:26,301 INFO L281 CegarLoopForPetriNet]: 176 programPoint places, -63 predicate places. [2023-11-06 22:37:26,302 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 113 transitions, 263 flow [2023-11-06 22:37:26,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 617.6666666666666) internal successors, (1853), 3 states have internal predecessors, (1853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:26,303 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:37:26,303 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:37:26,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:37:26,304 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-06 22:37:26,304 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:37:26,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1290078346, now seen corresponding path program 1 times [2023-11-06 22:37:26,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:37:26,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068614832] [2023-11-06 22:37:26,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:26,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:37:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:37:26,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:37:26,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:37:26,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068614832] [2023-11-06 22:37:26,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068614832] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:37:26,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:37:26,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:37:26,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145109170] [2023-11-06 22:37:26,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:37:26,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:37:26,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:37:26,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:37:26,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:37:26,385 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 617 out of 1363 [2023-11-06 22:37:26,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 113 transitions, 263 flow. Second operand has 3 states, 3 states have (on average 621.3333333333334) internal successors, (1864), 3 states have internal predecessors, (1864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:26,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:37:26,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 617 of 1363 [2023-11-06 22:37:26,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:37:30,051 INFO L124 PetriNetUnfolderBase]: 21407/38990 cut-off events. [2023-11-06 22:37:30,051 INFO L125 PetriNetUnfolderBase]: For 5852/5852 co-relation queries the response was YES. [2023-11-06 22:37:30,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76111 conditions, 38990 events. 21407/38990 cut-off events. For 5852/5852 co-relation queries the response was YES. Maximal size of possible extension queue 980. Compared 330748 event pairs, 5551 based on Foata normal form. 0/35020 useless extension candidates. Maximal degree in co-relation 76104. Up to 19707 conditions per place. [2023-11-06 22:37:30,372 INFO L140 encePairwiseOnDemand]: 1359/1363 looper letters, 101 selfloop transitions, 2 changer transitions 0/154 dead transitions. [2023-11-06 22:37:30,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 154 transitions, 583 flow [2023-11-06 22:37:30,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:37:30,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:37:30,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1948 transitions. [2023-11-06 22:37:30,383 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47640009782342874 [2023-11-06 22:37:30,383 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1948 transitions. [2023-11-06 22:37:30,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1948 transitions. [2023-11-06 22:37:30,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:37:30,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1948 transitions. [2023-11-06 22:37:30,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 649.3333333333334) internal successors, (1948), 3 states have internal predecessors, (1948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:30,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1363.0) internal successors, (5452), 4 states have internal predecessors, (5452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:30,408 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1363.0) internal successors, (5452), 4 states have internal predecessors, (5452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:30,409 INFO L175 Difference]: Start difference. First operand has 113 places, 113 transitions, 263 flow. Second operand 3 states and 1948 transitions. [2023-11-06 22:37:30,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 154 transitions, 583 flow [2023-11-06 22:37:30,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 154 transitions, 582 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:37:30,433 INFO L231 Difference]: Finished difference. Result has 113 places, 113 transitions, 274 flow [2023-11-06 22:37:30,434 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1363, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=113, PETRI_TRANSITIONS=113} [2023-11-06 22:37:30,435 INFO L281 CegarLoopForPetriNet]: 176 programPoint places, -63 predicate places. [2023-11-06 22:37:30,435 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 113 transitions, 274 flow [2023-11-06 22:37:30,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 621.3333333333334) internal successors, (1864), 3 states have internal predecessors, (1864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:30,436 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:37:30,436 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:37:30,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:37:30,437 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-06 22:37:30,438 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:37:30,438 INFO L85 PathProgramCache]: Analyzing trace with hash 374167421, now seen corresponding path program 1 times [2023-11-06 22:37:30,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:37:30,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094926904] [2023-11-06 22:37:30,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:30,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:37:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:37:31,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:37:31,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:37:31,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094926904] [2023-11-06 22:37:31,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094926904] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:37:31,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:37:31,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:37:31,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404234708] [2023-11-06 22:37:31,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:37:31,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:37:31,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:37:31,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:37:31,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:37:32,313 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 608 out of 1363 [2023-11-06 22:37:32,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 113 transitions, 274 flow. Second operand has 6 states, 6 states have (on average 610.3333333333334) internal successors, (3662), 6 states have internal predecessors, (3662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:32,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:37:32,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 608 of 1363 [2023-11-06 22:37:32,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:37:40,705 INFO L124 PetriNetUnfolderBase]: 64309/90643 cut-off events. [2023-11-06 22:37:40,706 INFO L125 PetriNetUnfolderBase]: For 25589/25589 co-relation queries the response was YES. [2023-11-06 22:37:40,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200160 conditions, 90643 events. 64309/90643 cut-off events. For 25589/25589 co-relation queries the response was YES. Maximal size of possible extension queue 2414. Compared 610068 event pairs, 6166 based on Foata normal form. 0/83423 useless extension candidates. Maximal degree in co-relation 200153. Up to 29976 conditions per place. [2023-11-06 22:37:41,354 INFO L140 encePairwiseOnDemand]: 1358/1363 looper letters, 232 selfloop transitions, 4 changer transitions 0/284 dead transitions. [2023-11-06 22:37:41,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 284 transitions, 1228 flow [2023-11-06 22:37:41,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:37:41,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:37:41,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3860 transitions. [2023-11-06 22:37:41,372 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47199804353142577 [2023-11-06 22:37:41,372 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3860 transitions. [2023-11-06 22:37:41,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3860 transitions. [2023-11-06 22:37:41,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:37:41,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3860 transitions. [2023-11-06 22:37:41,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 643.3333333333334) internal successors, (3860), 6 states have internal predecessors, (3860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:41,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1363.0) internal successors, (9541), 7 states have internal predecessors, (9541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:41,412 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1363.0) internal successors, (9541), 7 states have internal predecessors, (9541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:41,412 INFO L175 Difference]: Start difference. First operand has 113 places, 113 transitions, 274 flow. Second operand 6 states and 3860 transitions. [2023-11-06 22:37:41,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 284 transitions, 1228 flow [2023-11-06 22:37:41,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 284 transitions, 1228 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:37:41,460 INFO L231 Difference]: Finished difference. Result has 117 places, 112 transitions, 280 flow [2023-11-06 22:37:41,461 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1363, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=280, PETRI_PLACES=117, PETRI_TRANSITIONS=112} [2023-11-06 22:37:41,462 INFO L281 CegarLoopForPetriNet]: 176 programPoint places, -59 predicate places. [2023-11-06 22:37:41,462 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 112 transitions, 280 flow [2023-11-06 22:37:41,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 610.3333333333334) internal successors, (3662), 6 states have internal predecessors, (3662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:41,464 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:37:41,464 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:37:41,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:37:41,465 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-06 22:37:41,465 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:37:41,465 INFO L85 PathProgramCache]: Analyzing trace with hash -477256717, now seen corresponding path program 1 times [2023-11-06 22:37:41,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:37:41,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765600917] [2023-11-06 22:37:41,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:41,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:37:41,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:37:41,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:37:41,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:37:41,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765600917] [2023-11-06 22:37:41,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765600917] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:37:41,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:37:41,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:37:41,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396933965] [2023-11-06 22:37:41,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:37:41,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:37:41,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:37:41,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:37:41,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:37:42,093 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 609 out of 1363 [2023-11-06 22:37:42,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 112 transitions, 280 flow. Second operand has 4 states, 4 states have (on average 612.0) internal successors, (2448), 4 states have internal predecessors, (2448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:42,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:37:42,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 609 of 1363 [2023-11-06 22:37:42,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:37:48,433 INFO L124 PetriNetUnfolderBase]: 29152/54900 cut-off events. [2023-11-06 22:37:48,433 INFO L125 PetriNetUnfolderBase]: For 15596/15596 co-relation queries the response was YES. [2023-11-06 22:37:48,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112794 conditions, 54900 events. 29152/54900 cut-off events. For 15596/15596 co-relation queries the response was YES. Maximal size of possible extension queue 1271. Compared 509703 event pairs, 22207 based on Foata normal form. 650/50980 useless extension candidates. Maximal degree in co-relation 112786. Up to 28290 conditions per place. [2023-11-06 22:37:48,794 INFO L140 encePairwiseOnDemand]: 1355/1363 looper letters, 104 selfloop transitions, 7 changer transitions 0/163 dead transitions. [2023-11-06 22:37:48,794 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 163 transitions, 638 flow [2023-11-06 22:37:48,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:37:48,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-06 22:37:48,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3149 transitions. [2023-11-06 22:37:48,807 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46206896551724136 [2023-11-06 22:37:48,807 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3149 transitions. [2023-11-06 22:37:48,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3149 transitions. [2023-11-06 22:37:48,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:37:48,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3149 transitions. [2023-11-06 22:37:48,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 629.8) internal successors, (3149), 5 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:48,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1363.0) internal successors, (8178), 6 states have internal predecessors, (8178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:48,835 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1363.0) internal successors, (8178), 6 states have internal predecessors, (8178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:48,835 INFO L175 Difference]: Start difference. First operand has 117 places, 112 transitions, 280 flow. Second operand 5 states and 3149 transitions. [2023-11-06 22:37:48,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 163 transitions, 638 flow [2023-11-06 22:37:48,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 163 transitions, 629 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 22:37:48,958 INFO L231 Difference]: Finished difference. Result has 120 places, 118 transitions, 327 flow [2023-11-06 22:37:48,959 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1363, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=327, PETRI_PLACES=120, PETRI_TRANSITIONS=118} [2023-11-06 22:37:48,961 INFO L281 CegarLoopForPetriNet]: 176 programPoint places, -56 predicate places. [2023-11-06 22:37:48,961 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 118 transitions, 327 flow [2023-11-06 22:37:48,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 612.0) internal successors, (2448), 4 states have internal predecessors, (2448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:48,962 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:37:48,962 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:37:48,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:37:48,963 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-06 22:37:48,963 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:37:48,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1051563154, now seen corresponding path program 1 times [2023-11-06 22:37:48,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:37:48,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786025269] [2023-11-06 22:37:48,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:37:48,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:37:49,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:37:49,148 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:37:49,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:37:49,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786025269] [2023-11-06 22:37:49,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786025269] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:37:49,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:37:49,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:37:49,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769785280] [2023-11-06 22:37:49,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:37:49,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:37:49,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:37:49,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:37:49,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:37:49,640 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 600 out of 1363 [2023-11-06 22:37:49,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 118 transitions, 327 flow. Second operand has 6 states, 6 states have (on average 602.1666666666666) internal successors, (3613), 6 states have internal predecessors, (3613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:37:49,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:37:49,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 600 of 1363 [2023-11-06 22:37:49,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand