./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 527bcce2 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_220eb8f0-d9b0-448e-9641-a12acd633998/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220eb8f0-d9b0-448e-9641-a12acd633998/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220eb8f0-d9b0-448e-9641-a12acd633998/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220eb8f0-d9b0-448e-9641-a12acd633998/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/array-eq-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220eb8f0-d9b0-448e-9641-a12acd633998/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220eb8f0-d9b0-448e-9641-a12acd633998/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e7f1528a4c77969c5bff279724a3ed43475460be047e2e4b141f1353c3ea9cfe --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:21:35,883 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:21:35,947 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220eb8f0-d9b0-448e-9641-a12acd633998/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:21:35,953 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:21:35,954 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:21:35,978 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:21:35,979 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:21:35,979 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:21:35,980 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:21:35,981 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:21:35,982 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:21:35,982 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:21:35,983 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:21:35,983 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:21:35,984 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:21:35,985 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:21:35,985 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:21:35,986 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:21:35,987 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:21:35,987 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:21:35,988 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:21:35,989 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:21:35,989 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:21:35,990 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:21:35,991 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:21:35,991 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:21:35,992 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:21:35,993 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:21:35,993 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:21:35,994 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:21:35,995 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:21:35,995 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:21:35,996 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:21:35,997 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:21:35,997 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:21:35,998 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:21:35,998 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:21:35,999 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:21:35,999 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:21:36,000 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:21:36,001 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:21:36,001 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_220eb8f0-d9b0-448e-9641-a12acd633998/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220eb8f0-d9b0-448e-9641-a12acd633998/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7f1528a4c77969c5bff279724a3ed43475460be047e2e4b141f1353c3ea9cfe [2023-11-21 22:21:36,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:21:36,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:21:36,273 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:21:36,274 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:21:36,275 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:21:36,276 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220eb8f0-d9b0-448e-9641-a12acd633998/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/weaver/array-eq-trans.wvr.c [2023-11-21 22:21:39,373 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:21:39,597 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:21:39,598 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220eb8f0-d9b0-448e-9641-a12acd633998/sv-benchmarks/c/weaver/array-eq-trans.wvr.c [2023-11-21 22:21:39,607 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220eb8f0-d9b0-448e-9641-a12acd633998/bin/uautomizer-verify-bycVGegfSx/data/c01382d13/fe6a9357b7d24a5ebac8d14715c6a143/FLAGd6cd711fc [2023-11-21 22:21:39,622 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220eb8f0-d9b0-448e-9641-a12acd633998/bin/uautomizer-verify-bycVGegfSx/data/c01382d13/fe6a9357b7d24a5ebac8d14715c6a143 [2023-11-21 22:21:39,624 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:21:39,626 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:21:39,628 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:21:39,628 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:21:39,633 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:21:39,634 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:21:39" (1/1) ... [2023-11-21 22:21:39,635 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aca8574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:39, skipping insertion in model container [2023-11-21 22:21:39,636 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:21:39" (1/1) ... [2023-11-21 22:21:39,664 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:21:39,865 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:21:39,875 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:21:39,921 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:21:39,940 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:21:39,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:39 WrapperNode [2023-11-21 22:21:39,941 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:21:39,942 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:21:39,942 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:21:39,943 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:21:39,951 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:39" (1/1) ... [2023-11-21 22:21:39,968 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:39" (1/1) ... [2023-11-21 22:21:40,021 INFO L138 Inliner]: procedures = 24, calls = 47, calls flagged for inlining = 11, calls inlined = 15, statements flattened = 358 [2023-11-21 22:21:40,021 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:21:40,022 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:21:40,022 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:21:40,022 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:21:40,032 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:39" (1/1) ... [2023-11-21 22:21:40,044 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:39" (1/1) ... [2023-11-21 22:21:40,054 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:39" (1/1) ... [2023-11-21 22:21:40,054 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:39" (1/1) ... [2023-11-21 22:21:40,106 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:39" (1/1) ... [2023-11-21 22:21:40,112 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:39" (1/1) ... [2023-11-21 22:21:40,118 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:39" (1/1) ... [2023-11-21 22:21:40,122 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:39" (1/1) ... [2023-11-21 22:21:40,134 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:21:40,135 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:21:40,135 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:21:40,135 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:21:40,136 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:39" (1/1) ... [2023-11-21 22:21:40,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:21:40,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220eb8f0-d9b0-448e-9641-a12acd633998/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:21:40,169 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220eb8f0-d9b0-448e-9641-a12acd633998/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:21:40,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_220eb8f0-d9b0-448e-9641-a12acd633998/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:21:40,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:21:40,227 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-21 22:21:40,228 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-21 22:21:40,228 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-21 22:21:40,228 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-21 22:21:40,228 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-21 22:21:40,228 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-21 22:21:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:21:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:21:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:21:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:21:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:21:40,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:21:40,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:21:40,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:21:40,235 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 22:21:40,416 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:21:40,420 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:21:41,420 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:21:41,445 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:21:41,445 INFO L308 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-21 22:21:41,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:21:41 BoogieIcfgContainer [2023-11-21 22:21:41,447 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:21:41,450 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:21:41,450 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:21:41,454 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:21:41,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:21:39" (1/3) ... [2023-11-21 22:21:41,455 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fe885d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:21:41, skipping insertion in model container [2023-11-21 22:21:41,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:39" (2/3) ... [2023-11-21 22:21:41,456 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fe885d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:21:41, skipping insertion in model container [2023-11-21 22:21:41,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:21:41" (3/3) ... [2023-11-21 22:21:41,458 INFO L112 eAbstractionObserver]: Analyzing ICFG array-eq-trans.wvr.c [2023-11-21 22:21:41,467 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:21:41,479 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:21:41,479 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 81 error locations. [2023-11-21 22:21:41,479 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:21:41,637 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-21 22:21:41,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 632 places, 655 transitions, 1331 flow [2023-11-21 22:21:42,054 INFO L124 PetriNetUnfolderBase]: 33/652 cut-off events. [2023-11-21 22:21:42,056 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-21 22:21:42,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 665 conditions, 652 events. 33/652 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1344 event pairs, 0 based on Foata normal form. 0/538 useless extension candidates. Maximal degree in co-relation 371. Up to 3 conditions per place. [2023-11-21 22:21:42,074 INFO L82 GeneralOperation]: Start removeDead. Operand has 632 places, 655 transitions, 1331 flow [2023-11-21 22:21:42,093 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 601 places, 621 transitions, 1260 flow [2023-11-21 22:21:42,110 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:21:42,117 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3dcffd2a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:21:42,118 INFO L358 AbstractCegarLoop]: Starting to check reachability of 120 error locations. [2023-11-21 22:21:42,123 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:21:42,123 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2023-11-21 22:21:42,124 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:21:42,124 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:42,125 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:42,125 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)] === [2023-11-21 22:21:42,133 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:42,134 INFO L85 PathProgramCache]: Analyzing trace with hash 2010641452, now seen corresponding path program 1 times [2023-11-21 22:21:42,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:42,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234055529] [2023-11-21 22:21:42,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:42,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:42,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:42,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:42,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234055529] [2023-11-21 22:21:42,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234055529] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:42,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:42,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:21:42,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095547135] [2023-11-21 22:21:42,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:42,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:42,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:42,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:42,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:42,516 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 655 [2023-11-21 22:21:42,526 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 601 places, 621 transitions, 1260 flow. Second operand has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:42,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:42,527 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 655 [2023-11-21 22:21:42,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:21:42,876 INFO L124 PetriNetUnfolderBase]: 30/827 cut-off events. [2023-11-21 22:21:42,877 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-11-21 22:21:42,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 876 conditions, 827 events. 30/827 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2753 event pairs, 5 based on Foata normal form. 30/705 useless extension candidates. Maximal degree in co-relation 441. Up to 28 conditions per place. [2023-11-21 22:21:42,896 INFO L140 encePairwiseOnDemand]: 638/655 looper letters, 14 selfloop transitions, 2 changer transitions 8/606 dead transitions. [2023-11-21 22:21:42,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 602 places, 606 transitions, 1262 flow [2023-11-21 22:21:42,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:42,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:21:42,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1894 transitions. [2023-11-21 22:21:42,923 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9638676844783715 [2023-11-21 22:21:42,924 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1894 transitions. [2023-11-21 22:21:42,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1894 transitions. [2023-11-21 22:21:42,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:21:42,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1894 transitions. [2023-11-21 22:21:42,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 631.3333333333334) internal successors, (1894), 3 states have internal predecessors, (1894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:42,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:42,960 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:42,963 INFO L175 Difference]: Start difference. First operand has 601 places, 621 transitions, 1260 flow. Second operand 3 states and 1894 transitions. [2023-11-21 22:21:42,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 602 places, 606 transitions, 1262 flow [2023-11-21 22:21:42,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 596 places, 606 transitions, 1250 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-21 22:21:43,047 INFO L231 Difference]: Finished difference. Result has 596 places, 598 transitions, 1206 flow [2023-11-21 22:21:43,050 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1218, PETRI_DIFFERENCE_MINUEND_PLACES=594, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=606, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=604, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1206, PETRI_PLACES=596, PETRI_TRANSITIONS=598} [2023-11-21 22:21:43,054 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -5 predicate places. [2023-11-21 22:21:43,056 INFO L495 AbstractCegarLoop]: Abstraction has has 596 places, 598 transitions, 1206 flow [2023-11-21 22:21:43,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:43,058 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:43,058 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:43,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:21:43,058 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-21 22:21:43,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:43,059 INFO L85 PathProgramCache]: Analyzing trace with hash -738020819, now seen corresponding path program 1 times [2023-11-21 22:21:43,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:43,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109226552] [2023-11-21 22:21:43,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:43,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:43,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:43,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:43,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:43,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109226552] [2023-11-21 22:21:43,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109226552] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:43,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:43,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:21:43,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375483706] [2023-11-21 22:21:43,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:43,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:43,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:43,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:43,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:43,258 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 655 [2023-11-21 22:21:43,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 596 places, 598 transitions, 1206 flow. Second operand has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:43,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:43,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 655 [2023-11-21 22:21:43,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:21:43,573 INFO L124 PetriNetUnfolderBase]: 38/950 cut-off events. [2023-11-21 22:21:43,573 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-21 22:21:43,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 994 conditions, 950 events. 38/950 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3658 event pairs, 7 based on Foata normal form. 0/776 useless extension candidates. Maximal degree in co-relation 960. Up to 31 conditions per place. [2023-11-21 22:21:43,593 INFO L140 encePairwiseOnDemand]: 652/655 looper letters, 14 selfloop transitions, 2 changer transitions 0/597 dead transitions. [2023-11-21 22:21:43,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 589 places, 597 transitions, 1236 flow [2023-11-21 22:21:43,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:43,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:21:43,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1880 transitions. [2023-11-21 22:21:43,601 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9567430025445293 [2023-11-21 22:21:43,601 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1880 transitions. [2023-11-21 22:21:43,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1880 transitions. [2023-11-21 22:21:43,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:21:43,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1880 transitions. [2023-11-21 22:21:43,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 626.6666666666666) internal successors, (1880), 3 states have internal predecessors, (1880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:43,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:43,620 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:43,620 INFO L175 Difference]: Start difference. First operand has 596 places, 598 transitions, 1206 flow. Second operand 3 states and 1880 transitions. [2023-11-21 22:21:43,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 589 places, 597 transitions, 1236 flow [2023-11-21 22:21:43,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 587 places, 597 transitions, 1232 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:21:43,636 INFO L231 Difference]: Finished difference. Result has 587 places, 597 transitions, 1204 flow [2023-11-21 22:21:43,637 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1200, PETRI_DIFFERENCE_MINUEND_PLACES=585, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=597, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=595, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1204, PETRI_PLACES=587, PETRI_TRANSITIONS=597} [2023-11-21 22:21:43,641 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -14 predicate places. [2023-11-21 22:21:43,641 INFO L495 AbstractCegarLoop]: Abstraction has has 587 places, 597 transitions, 1204 flow [2023-11-21 22:21:43,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:43,645 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:43,647 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:43,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:21:43,648 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-21 22:21:43,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:43,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1457147716, now seen corresponding path program 1 times [2023-11-21 22:21:43,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:43,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196165199] [2023-11-21 22:21:43,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:43,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:43,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:43,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:43,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:43,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196165199] [2023-11-21 22:21:43,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196165199] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:43,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:43,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:21:43,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597534255] [2023-11-21 22:21:43,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:43,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:43,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:43,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:43,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:43,822 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 655 [2023-11-21 22:21:43,825 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 587 places, 597 transitions, 1204 flow. Second operand has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:43,826 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:43,826 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 655 [2023-11-21 22:21:43,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:21:44,126 INFO L124 PetriNetUnfolderBase]: 26/715 cut-off events. [2023-11-21 22:21:44,126 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-21 22:21:44,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 753 conditions, 715 events. 26/715 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2025 event pairs, 7 based on Foata normal form. 0/601 useless extension candidates. Maximal degree in co-relation 711. Up to 28 conditions per place. [2023-11-21 22:21:44,139 INFO L140 encePairwiseOnDemand]: 652/655 looper letters, 14 selfloop transitions, 2 changer transitions 0/596 dead transitions. [2023-11-21 22:21:44,140 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 588 places, 596 transitions, 1234 flow [2023-11-21 22:21:44,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:44,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:21:44,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1880 transitions. [2023-11-21 22:21:44,147 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9567430025445293 [2023-11-21 22:21:44,147 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1880 transitions. [2023-11-21 22:21:44,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1880 transitions. [2023-11-21 22:21:44,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:21:44,149 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1880 transitions. [2023-11-21 22:21:44,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 626.6666666666666) internal successors, (1880), 3 states have internal predecessors, (1880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:44,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:44,165 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:44,165 INFO L175 Difference]: Start difference. First operand has 587 places, 597 transitions, 1204 flow. Second operand 3 states and 1880 transitions. [2023-11-21 22:21:44,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 588 places, 596 transitions, 1234 flow [2023-11-21 22:21:44,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 586 places, 596 transitions, 1230 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:21:44,186 INFO L231 Difference]: Finished difference. Result has 586 places, 596 transitions, 1202 flow [2023-11-21 22:21:44,187 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1198, PETRI_DIFFERENCE_MINUEND_PLACES=584, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=596, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=594, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1202, PETRI_PLACES=586, PETRI_TRANSITIONS=596} [2023-11-21 22:21:44,189 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -15 predicate places. [2023-11-21 22:21:44,189 INFO L495 AbstractCegarLoop]: Abstraction has has 586 places, 596 transitions, 1202 flow [2023-11-21 22:21:44,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:44,191 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:44,191 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:44,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:21:44,192 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-21 22:21:44,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:44,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1260793119, now seen corresponding path program 1 times [2023-11-21 22:21:44,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:44,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640920222] [2023-11-21 22:21:44,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:44,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:44,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:44,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:44,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:44,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640920222] [2023-11-21 22:21:44,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640920222] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:44,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:44,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:21:44,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566683630] [2023-11-21 22:21:44,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:44,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:44,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:44,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:44,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:44,337 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 617 out of 655 [2023-11-21 22:21:44,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 586 places, 596 transitions, 1202 flow. Second operand has 3 states, 3 states have (on average 618.0) internal successors, (1854), 3 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:44,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:44,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 617 of 655 [2023-11-21 22:21:44,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:21:44,651 INFO L124 PetriNetUnfolderBase]: 50/1073 cut-off events. [2023-11-21 22:21:44,652 INFO L125 PetriNetUnfolderBase]: For 7/8 co-relation queries the response was YES. [2023-11-21 22:21:44,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 1073 events. 50/1073 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4549 event pairs, 12 based on Foata normal form. 0/879 useless extension candidates. Maximal degree in co-relation 1084. Up to 48 conditions per place. [2023-11-21 22:21:44,674 INFO L140 encePairwiseOnDemand]: 649/655 looper letters, 16 selfloop transitions, 1 changer transitions 0/591 dead transitions. [2023-11-21 22:21:44,674 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 583 places, 591 transitions, 1226 flow [2023-11-21 22:21:44,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:44,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:21:44,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1873 transitions. [2023-11-21 22:21:44,682 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9531806615776082 [2023-11-21 22:21:44,682 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1873 transitions. [2023-11-21 22:21:44,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1873 transitions. [2023-11-21 22:21:44,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:21:44,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1873 transitions. [2023-11-21 22:21:44,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 624.3333333333334) internal successors, (1873), 3 states have internal predecessors, (1873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:44,700 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:44,703 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:44,703 INFO L175 Difference]: Start difference. First operand has 586 places, 596 transitions, 1202 flow. Second operand 3 states and 1873 transitions. [2023-11-21 22:21:44,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 583 places, 591 transitions, 1226 flow [2023-11-21 22:21:44,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 581 places, 591 transitions, 1222 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:21:44,722 INFO L231 Difference]: Finished difference. Result has 581 places, 591 transitions, 1190 flow [2023-11-21 22:21:44,723 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1188, PETRI_DIFFERENCE_MINUEND_PLACES=579, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=591, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=590, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1190, PETRI_PLACES=581, PETRI_TRANSITIONS=591} [2023-11-21 22:21:44,725 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -20 predicate places. [2023-11-21 22:21:44,725 INFO L495 AbstractCegarLoop]: Abstraction has has 581 places, 591 transitions, 1190 flow [2023-11-21 22:21:44,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 618.0) internal successors, (1854), 3 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:44,728 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:44,728 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:44,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:21:44,728 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-21 22:21:44,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:44,729 INFO L85 PathProgramCache]: Analyzing trace with hash 976782486, now seen corresponding path program 1 times [2023-11-21 22:21:44,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:44,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764910967] [2023-11-21 22:21:44,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:44,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:45,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:45,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:45,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764910967] [2023-11-21 22:21:45,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764910967] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:45,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:45,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:21:45,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394605193] [2023-11-21 22:21:45,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:45,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:21:45,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:45,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:21:45,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:21:46,382 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 531 out of 655 [2023-11-21 22:21:46,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 581 places, 591 transitions, 1190 flow. Second operand has 6 states, 6 states have (on average 532.5) internal successors, (3195), 6 states have internal predecessors, (3195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:46,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:46,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 531 of 655 [2023-11-21 22:21:46,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:21:58,883 INFO L124 PetriNetUnfolderBase]: 13011/59192 cut-off events. [2023-11-21 22:21:58,884 INFO L125 PetriNetUnfolderBase]: For 182/212 co-relation queries the response was YES. [2023-11-21 22:21:59,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74853 conditions, 59192 events. 13011/59192 cut-off events. For 182/212 co-relation queries the response was YES. Maximal size of possible extension queue 1404. Compared 879605 event pairs, 9904 based on Foata normal form. 0/47239 useless extension candidates. Maximal degree in co-relation 74804. Up to 15552 conditions per place. [2023-11-21 22:21:59,651 INFO L140 encePairwiseOnDemand]: 637/655 looper letters, 90 selfloop transitions, 15 changer transitions 0/588 dead transitions. [2023-11-21 22:21:59,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 583 places, 588 transitions, 1394 flow [2023-11-21 22:21:59,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:21:59,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:21:59,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3294 transitions. [2023-11-21 22:21:59,664 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8381679389312977 [2023-11-21 22:21:59,665 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3294 transitions. [2023-11-21 22:21:59,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3294 transitions. [2023-11-21 22:21:59,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:21:59,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3294 transitions. [2023-11-21 22:21:59,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 549.0) internal successors, (3294), 6 states have internal predecessors, (3294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:59,691 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 655.0) internal successors, (4585), 7 states have internal predecessors, (4585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:59,695 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 655.0) internal successors, (4585), 7 states have internal predecessors, (4585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:59,695 INFO L175 Difference]: Start difference. First operand has 581 places, 591 transitions, 1190 flow. Second operand 6 states and 3294 transitions. [2023-11-21 22:21:59,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 583 places, 588 transitions, 1394 flow [2023-11-21 22:21:59,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 582 places, 588 transitions, 1393 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:21:59,712 INFO L231 Difference]: Finished difference. Result has 582 places, 588 transitions, 1213 flow [2023-11-21 22:21:59,714 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1183, PETRI_DIFFERENCE_MINUEND_PLACES=577, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=588, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=573, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1213, PETRI_PLACES=582, PETRI_TRANSITIONS=588} [2023-11-21 22:21:59,716 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -19 predicate places. [2023-11-21 22:21:59,717 INFO L495 AbstractCegarLoop]: Abstraction has has 582 places, 588 transitions, 1213 flow [2023-11-21 22:21:59,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 532.5) internal successors, (3195), 6 states have internal predecessors, (3195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:59,721 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:59,721 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:59,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:21:59,722 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-21 22:21:59,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:59,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1954158817, now seen corresponding path program 1 times [2023-11-21 22:21:59,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:59,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879930643] [2023-11-21 22:21:59,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:59,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:59,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:59,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:59,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879930643] [2023-11-21 22:21:59,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879930643] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:59,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:59,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:21:59,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651308624] [2023-11-21 22:21:59,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:59,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:59,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:59,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:59,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:59,835 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 622 out of 655 [2023-11-21 22:21:59,847 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 582 places, 588 transitions, 1213 flow. Second operand has 3 states, 3 states have (on average 623.3333333333334) internal successors, (1870), 3 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:59,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:59,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 622 of 655 [2023-11-21 22:21:59,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:22:00,173 INFO L124 PetriNetUnfolderBase]: 27/757 cut-off events. [2023-11-21 22:22:00,173 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-21 22:22:00,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 806 conditions, 757 events. 27/757 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2316 event pairs, 5 based on Foata normal form. 0/640 useless extension candidates. Maximal degree in co-relation 758. Up to 24 conditions per place. [2023-11-21 22:22:00,182 INFO L140 encePairwiseOnDemand]: 652/655 looper letters, 13 selfloop transitions, 2 changer transitions 0/587 dead transitions. [2023-11-21 22:22:00,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 583 places, 587 transitions, 1241 flow [2023-11-21 22:22:00,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:22:00,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:22:00,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1882 transitions. [2023-11-21 22:22:00,189 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9577608142493639 [2023-11-21 22:22:00,189 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1882 transitions. [2023-11-21 22:22:00,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1882 transitions. [2023-11-21 22:22:00,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:22:00,191 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1882 transitions. [2023-11-21 22:22:00,196 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:00,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:00,202 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:00,202 INFO L175 Difference]: Start difference. First operand has 582 places, 588 transitions, 1213 flow. Second operand 3 states and 1882 transitions. [2023-11-21 22:22:00,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 583 places, 587 transitions, 1241 flow [2023-11-21 22:22:00,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 578 places, 587 transitions, 1211 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-21 22:22:00,215 INFO L231 Difference]: Finished difference. Result has 578 places, 587 transitions, 1185 flow [2023-11-21 22:22:00,216 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1181, PETRI_DIFFERENCE_MINUEND_PLACES=576, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=587, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=585, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1185, PETRI_PLACES=578, PETRI_TRANSITIONS=587} [2023-11-21 22:22:00,219 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -23 predicate places. [2023-11-21 22:22:00,219 INFO L495 AbstractCegarLoop]: Abstraction has has 578 places, 587 transitions, 1185 flow [2023-11-21 22:22:00,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 623.3333333333334) internal successors, (1870), 3 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:00,220 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:22:00,220 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:00,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:22:00,221 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-21 22:22:00,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:00,221 INFO L85 PathProgramCache]: Analyzing trace with hash 134719222, now seen corresponding path program 1 times [2023-11-21 22:22:00,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:00,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064500836] [2023-11-21 22:22:00,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:00,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:00,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:00,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:00,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064500836] [2023-11-21 22:22:00,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064500836] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:00,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:00,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:22:00,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139826631] [2023-11-21 22:22:00,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:00,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:22:00,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:00,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:22:00,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:00,301 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 617 out of 655 [2023-11-21 22:22:00,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 578 places, 587 transitions, 1185 flow. Second operand has 3 states, 3 states have (on average 618.0) internal successors, (1854), 3 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:00,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:22:00,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 617 of 655 [2023-11-21 22:22:00,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:22:00,571 INFO L124 PetriNetUnfolderBase]: 73/1325 cut-off events. [2023-11-21 22:22:00,572 INFO L125 PetriNetUnfolderBase]: For 8/13 co-relation queries the response was YES. [2023-11-21 22:22:00,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1410 conditions, 1325 events. 73/1325 cut-off events. For 8/13 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 7063 event pairs, 20 based on Foata normal form. 0/1089 useless extension candidates. Maximal degree in co-relation 1360. Up to 65 conditions per place. [2023-11-21 22:22:00,595 INFO L140 encePairwiseOnDemand]: 649/655 looper letters, 16 selfloop transitions, 1 changer transitions 0/582 dead transitions. [2023-11-21 22:22:00,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 575 places, 582 transitions, 1209 flow [2023-11-21 22:22:00,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:22:00,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:22:00,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1873 transitions. [2023-11-21 22:22:00,601 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9531806615776082 [2023-11-21 22:22:00,602 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1873 transitions. [2023-11-21 22:22:00,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1873 transitions. [2023-11-21 22:22:00,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:22:00,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1873 transitions. [2023-11-21 22:22:00,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 624.3333333333334) internal successors, (1873), 3 states have internal predecessors, (1873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:00,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:00,614 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:00,615 INFO L175 Difference]: Start difference. First operand has 578 places, 587 transitions, 1185 flow. Second operand 3 states and 1873 transitions. [2023-11-21 22:22:00,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 575 places, 582 transitions, 1209 flow [2023-11-21 22:22:00,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 573 places, 582 transitions, 1205 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:22:00,628 INFO L231 Difference]: Finished difference. Result has 573 places, 582 transitions, 1173 flow [2023-11-21 22:22:00,631 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1171, PETRI_DIFFERENCE_MINUEND_PLACES=571, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=582, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=581, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1173, PETRI_PLACES=573, PETRI_TRANSITIONS=582} [2023-11-21 22:22:00,631 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -28 predicate places. [2023-11-21 22:22:00,632 INFO L495 AbstractCegarLoop]: Abstraction has has 573 places, 582 transitions, 1173 flow [2023-11-21 22:22:00,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 618.0) internal successors, (1854), 3 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:00,633 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:22:00,633 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:00,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 22:22:00,633 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-21 22:22:00,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:00,634 INFO L85 PathProgramCache]: Analyzing trace with hash -829889210, now seen corresponding path program 1 times [2023-11-21 22:22:00,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:00,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035828406] [2023-11-21 22:22:00,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:00,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:00,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:00,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:00,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:00,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035828406] [2023-11-21 22:22:00,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035828406] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:00,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:00,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:22:00,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453108756] [2023-11-21 22:22:00,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:00,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:22:00,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:00,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:22:00,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:00,729 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 622 out of 655 [2023-11-21 22:22:00,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 573 places, 582 transitions, 1173 flow. Second operand has 3 states, 3 states have (on average 623.3333333333334) internal successors, (1870), 3 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:00,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:22:00,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 622 of 655 [2023-11-21 22:22:00,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:22:00,903 INFO L124 PetriNetUnfolderBase]: 35/893 cut-off events. [2023-11-21 22:22:00,903 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-21 22:22:00,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 933 conditions, 893 events. 35/893 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3223 event pairs, 7 based on Foata normal form. 0/750 useless extension candidates. Maximal degree in co-relation 883. Up to 27 conditions per place. [2023-11-21 22:22:00,916 INFO L140 encePairwiseOnDemand]: 652/655 looper letters, 13 selfloop transitions, 2 changer transitions 0/581 dead transitions. [2023-11-21 22:22:00,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 574 places, 581 transitions, 1201 flow [2023-11-21 22:22:00,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:22:00,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:22:00,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1882 transitions. [2023-11-21 22:22:00,924 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9577608142493639 [2023-11-21 22:22:00,924 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1882 transitions. [2023-11-21 22:22:00,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1882 transitions. [2023-11-21 22:22:00,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:22:00,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1882 transitions. [2023-11-21 22:22:00,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:00,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:00,937 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:00,937 INFO L175 Difference]: Start difference. First operand has 573 places, 582 transitions, 1173 flow. Second operand 3 states and 1882 transitions. [2023-11-21 22:22:00,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 574 places, 581 transitions, 1201 flow [2023-11-21 22:22:00,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 573 places, 581 transitions, 1200 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:22:00,951 INFO L231 Difference]: Finished difference. Result has 573 places, 581 transitions, 1174 flow [2023-11-21 22:22:00,952 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1170, PETRI_DIFFERENCE_MINUEND_PLACES=571, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=581, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=579, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1174, PETRI_PLACES=573, PETRI_TRANSITIONS=581} [2023-11-21 22:22:00,955 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -28 predicate places. [2023-11-21 22:22:00,955 INFO L495 AbstractCegarLoop]: Abstraction has has 573 places, 581 transitions, 1174 flow [2023-11-21 22:22:00,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 623.3333333333334) internal successors, (1870), 3 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:00,956 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:22:00,956 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:00,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 22:22:00,957 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-21 22:22:00,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:00,957 INFO L85 PathProgramCache]: Analyzing trace with hash -340246155, now seen corresponding path program 1 times [2023-11-21 22:22:00,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:00,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584532173] [2023-11-21 22:22:00,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:00,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:00,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:01,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:01,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:01,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584532173] [2023-11-21 22:22:01,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584532173] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:01,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:01,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:22:01,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818846543] [2023-11-21 22:22:01,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:01,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:22:01,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:01,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:22:01,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:01,038 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 617 out of 655 [2023-11-21 22:22:01,040 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 573 places, 581 transitions, 1174 flow. Second operand has 3 states, 3 states have (on average 618.0) internal successors, (1854), 3 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:01,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:22:01,041 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 617 of 655 [2023-11-21 22:22:01,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:22:01,330 INFO L124 PetriNetUnfolderBase]: 70/1226 cut-off events. [2023-11-21 22:22:01,330 INFO L125 PetriNetUnfolderBase]: For 17/19 co-relation queries the response was YES. [2023-11-21 22:22:01,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1306 conditions, 1226 events. 70/1226 cut-off events. For 17/19 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5825 event pairs, 20 based on Foata normal form. 0/1022 useless extension candidates. Maximal degree in co-relation 1256. Up to 67 conditions per place. [2023-11-21 22:22:01,355 INFO L140 encePairwiseOnDemand]: 649/655 looper letters, 16 selfloop transitions, 1 changer transitions 0/576 dead transitions. [2023-11-21 22:22:01,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 570 places, 576 transitions, 1198 flow [2023-11-21 22:22:01,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:22:01,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:22:01,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1873 transitions. [2023-11-21 22:22:01,363 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9531806615776082 [2023-11-21 22:22:01,363 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1873 transitions. [2023-11-21 22:22:01,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1873 transitions. [2023-11-21 22:22:01,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:22:01,366 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1873 transitions. [2023-11-21 22:22:01,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 624.3333333333334) internal successors, (1873), 3 states have internal predecessors, (1873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:01,377 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:01,379 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:01,379 INFO L175 Difference]: Start difference. First operand has 573 places, 581 transitions, 1174 flow. Second operand 3 states and 1873 transitions. [2023-11-21 22:22:01,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 570 places, 576 transitions, 1198 flow [2023-11-21 22:22:01,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 568 places, 576 transitions, 1194 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:22:01,395 INFO L231 Difference]: Finished difference. Result has 568 places, 576 transitions, 1162 flow [2023-11-21 22:22:01,397 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1160, PETRI_DIFFERENCE_MINUEND_PLACES=566, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=576, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=575, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1162, PETRI_PLACES=568, PETRI_TRANSITIONS=576} [2023-11-21 22:22:01,398 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -33 predicate places. [2023-11-21 22:22:01,398 INFO L495 AbstractCegarLoop]: Abstraction has has 568 places, 576 transitions, 1162 flow [2023-11-21 22:22:01,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 618.0) internal successors, (1854), 3 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:01,399 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:22:01,400 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:01,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 22:22:01,400 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-21 22:22:01,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:01,401 INFO L85 PathProgramCache]: Analyzing trace with hash 61115418, now seen corresponding path program 1 times [2023-11-21 22:22:01,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:01,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713009131] [2023-11-21 22:22:01,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:01,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:01,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:01,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:01,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:01,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713009131] [2023-11-21 22:22:01,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713009131] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:01,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:01,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:22:01,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928801376] [2023-11-21 22:22:01,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:01,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:22:01,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:01,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:22:01,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:01,520 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 622 out of 655 [2023-11-21 22:22:01,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 568 places, 576 transitions, 1162 flow. Second operand has 3 states, 3 states have (on average 623.3333333333334) internal successors, (1870), 3 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:01,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:22:01,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 622 of 655 [2023-11-21 22:22:01,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:22:01,729 INFO L124 PetriNetUnfolderBase]: 26/692 cut-off events. [2023-11-21 22:22:01,730 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-21 22:22:01,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 730 conditions, 692 events. 26/692 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1879 event pairs, 7 based on Foata normal form. 0/601 useless extension candidates. Maximal degree in co-relation 680. Up to 27 conditions per place. [2023-11-21 22:22:01,739 INFO L140 encePairwiseOnDemand]: 652/655 looper letters, 13 selfloop transitions, 2 changer transitions 0/575 dead transitions. [2023-11-21 22:22:01,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 569 places, 575 transitions, 1190 flow [2023-11-21 22:22:01,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:22:01,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:22:01,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1882 transitions. [2023-11-21 22:22:01,746 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9577608142493639 [2023-11-21 22:22:01,746 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1882 transitions. [2023-11-21 22:22:01,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1882 transitions. [2023-11-21 22:22:01,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:22:01,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1882 transitions. [2023-11-21 22:22:01,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:01,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:01,760 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:01,760 INFO L175 Difference]: Start difference. First operand has 568 places, 576 transitions, 1162 flow. Second operand 3 states and 1882 transitions. [2023-11-21 22:22:01,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 569 places, 575 transitions, 1190 flow [2023-11-21 22:22:01,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 568 places, 575 transitions, 1189 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:22:01,773 INFO L231 Difference]: Finished difference. Result has 568 places, 575 transitions, 1163 flow [2023-11-21 22:22:01,775 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1159, PETRI_DIFFERENCE_MINUEND_PLACES=566, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=575, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=573, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1163, PETRI_PLACES=568, PETRI_TRANSITIONS=575} [2023-11-21 22:22:01,776 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -33 predicate places. [2023-11-21 22:22:01,776 INFO L495 AbstractCegarLoop]: Abstraction has has 568 places, 575 transitions, 1163 flow [2023-11-21 22:22:01,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 623.3333333333334) internal successors, (1870), 3 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:01,777 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:22:01,778 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:01,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 22:22:01,778 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-21 22:22:01,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:01,779 INFO L85 PathProgramCache]: Analyzing trace with hash -2035003892, now seen corresponding path program 1 times [2023-11-21 22:22:01,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:01,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625225978] [2023-11-21 22:22:01,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:01,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:01,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:01,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:01,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:01,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625225978] [2023-11-21 22:22:01,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625225978] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:01,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:01,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:22:01,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312368013] [2023-11-21 22:22:01,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:01,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:22:01,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:01,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:22:01,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:01,890 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 605 out of 655 [2023-11-21 22:22:01,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 568 places, 575 transitions, 1163 flow. Second operand has 3 states, 3 states have (on average 606.0) internal successors, (1818), 3 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:01,892 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:22:01,892 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 605 of 655 [2023-11-21 22:22:01,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:22:02,039 INFO L124 PetriNetUnfolderBase]: 44/706 cut-off events. [2023-11-21 22:22:02,039 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-21 22:22:02,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 810 conditions, 706 events. 44/706 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2192 event pairs, 2 based on Foata normal form. 0/625 useless extension candidates. Maximal degree in co-relation 761. Up to 63 conditions per place. [2023-11-21 22:22:02,049 INFO L140 encePairwiseOnDemand]: 644/655 looper letters, 25 selfloop transitions, 2 changer transitions 0/568 dead transitions. [2023-11-21 22:22:02,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 561 places, 568 transitions, 1205 flow [2023-11-21 22:22:02,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:22:02,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:22:02,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1851 transitions. [2023-11-21 22:22:02,056 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9419847328244275 [2023-11-21 22:22:02,056 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1851 transitions. [2023-11-21 22:22:02,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1851 transitions. [2023-11-21 22:22:02,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:22:02,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1851 transitions. [2023-11-21 22:22:02,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2023-11-21 22:22:02,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:02,069 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:02,069 INFO L175 Difference]: Start difference. First operand has 568 places, 575 transitions, 1163 flow. Second operand 3 states and 1851 transitions. [2023-11-21 22:22:02,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 561 places, 568 transitions, 1205 flow [2023-11-21 22:22:02,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 559 places, 568 transitions, 1201 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:22:02,083 INFO L231 Difference]: Finished difference. Result has 559 places, 566 transitions, 1145 flow [2023-11-21 22:22:02,085 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1141, PETRI_DIFFERENCE_MINUEND_PLACES=557, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=566, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=564, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1145, PETRI_PLACES=559, PETRI_TRANSITIONS=566} [2023-11-21 22:22:02,085 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -42 predicate places. [2023-11-21 22:22:02,086 INFO L495 AbstractCegarLoop]: Abstraction has has 559 places, 566 transitions, 1145 flow [2023-11-21 22:22:02,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 606.0) internal successors, (1818), 3 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:02,087 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:22:02,087 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:02,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-21 22:22:02,088 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-21 22:22:02,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:02,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1222475227, now seen corresponding path program 1 times [2023-11-21 22:22:02,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:02,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468209036] [2023-11-21 22:22:02,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:02,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:02,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:02,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:02,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:02,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468209036] [2023-11-21 22:22:02,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468209036] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:02,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:02,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:22:02,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272738974] [2023-11-21 22:22:02,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:02,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:22:02,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:02,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:22:02,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:02,196 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 605 out of 655 [2023-11-21 22:22:02,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 559 places, 566 transitions, 1145 flow. Second operand has 3 states, 3 states have (on average 606.3333333333334) internal successors, (1819), 3 states have internal predecessors, (1819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:02,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:22:02,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 605 of 655 [2023-11-21 22:22:02,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:22:02,365 INFO L124 PetriNetUnfolderBase]: 44/697 cut-off events. [2023-11-21 22:22:02,366 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-21 22:22:02,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 790 conditions, 697 events. 44/697 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2214 event pairs, 2 based on Foata normal form. 0/624 useless extension candidates. Maximal degree in co-relation 741. Up to 62 conditions per place. [2023-11-21 22:22:02,376 INFO L140 encePairwiseOnDemand]: 644/655 looper letters, 25 selfloop transitions, 2 changer transitions 0/559 dead transitions. [2023-11-21 22:22:02,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 552 places, 559 transitions, 1187 flow [2023-11-21 22:22:02,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:22:02,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:22:02,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1851 transitions. [2023-11-21 22:22:02,384 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9419847328244275 [2023-11-21 22:22:02,384 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1851 transitions. [2023-11-21 22:22:02,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1851 transitions. [2023-11-21 22:22:02,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:22:02,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1851 transitions. [2023-11-21 22:22:02,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2023-11-21 22:22:02,396 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:02,397 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:02,397 INFO L175 Difference]: Start difference. First operand has 559 places, 566 transitions, 1145 flow. Second operand 3 states and 1851 transitions. [2023-11-21 22:22:02,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 552 places, 559 transitions, 1187 flow [2023-11-21 22:22:02,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 550 places, 559 transitions, 1183 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:22:02,413 INFO L231 Difference]: Finished difference. Result has 550 places, 557 transitions, 1127 flow [2023-11-21 22:22:02,414 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1123, PETRI_DIFFERENCE_MINUEND_PLACES=548, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=557, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=555, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1127, PETRI_PLACES=550, PETRI_TRANSITIONS=557} [2023-11-21 22:22:02,415 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -51 predicate places. [2023-11-21 22:22:02,415 INFO L495 AbstractCegarLoop]: Abstraction has has 550 places, 557 transitions, 1127 flow [2023-11-21 22:22:02,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 606.3333333333334) internal successors, (1819), 3 states have internal predecessors, (1819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:02,417 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:22:02,417 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:02,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-21 22:22:02,417 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-21 22:22:02,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:02,419 INFO L85 PathProgramCache]: Analyzing trace with hash 306910041, now seen corresponding path program 1 times [2023-11-21 22:22:02,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:02,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199017795] [2023-11-21 22:22:02,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:02,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:02,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:02,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:02,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:02,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199017795] [2023-11-21 22:22:02,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199017795] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:02,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:02,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:22:02,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257200956] [2023-11-21 22:22:02,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:02,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:22:02,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:02,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:22:02,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:02,527 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 625 out of 655 [2023-11-21 22:22:02,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 550 places, 557 transitions, 1127 flow. Second operand has 3 states, 3 states have (on average 626.6666666666666) internal successors, (1880), 3 states have internal predecessors, (1880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:02,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:22:02,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 625 of 655 [2023-11-21 22:22:02,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:22:02,663 INFO L124 PetriNetUnfolderBase]: 38/694 cut-off events. [2023-11-21 22:22:02,664 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-21 22:22:02,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 772 conditions, 694 events. 38/694 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1945 event pairs, 12 based on Foata normal form. 0/624 useless extension candidates. Maximal degree in co-relation 723. Up to 39 conditions per place. [2023-11-21 22:22:02,672 INFO L140 encePairwiseOnDemand]: 651/655 looper letters, 14 selfloop transitions, 3 changer transitions 0/560 dead transitions. [2023-11-21 22:22:02,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 552 places, 560 transitions, 1169 flow [2023-11-21 22:22:02,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:22:02,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:22:02,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1893 transitions. [2023-11-21 22:22:02,678 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9633587786259542 [2023-11-21 22:22:02,678 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1893 transitions. [2023-11-21 22:22:02,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1893 transitions. [2023-11-21 22:22:02,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:22:02,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1893 transitions. [2023-11-21 22:22:02,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 631.0) internal successors, (1893), 3 states have internal predecessors, (1893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:02,691 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:02,692 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:02,692 INFO L175 Difference]: Start difference. First operand has 550 places, 557 transitions, 1127 flow. Second operand 3 states and 1893 transitions. [2023-11-21 22:22:02,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 552 places, 560 transitions, 1169 flow [2023-11-21 22:22:02,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 550 places, 560 transitions, 1165 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:22:02,706 INFO L231 Difference]: Finished difference. Result has 552 places, 558 transitions, 1141 flow [2023-11-21 22:22:02,707 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1123, PETRI_DIFFERENCE_MINUEND_PLACES=548, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=557, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=554, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1141, PETRI_PLACES=552, PETRI_TRANSITIONS=558} [2023-11-21 22:22:02,708 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -49 predicate places. [2023-11-21 22:22:02,708 INFO L495 AbstractCegarLoop]: Abstraction has has 552 places, 558 transitions, 1141 flow [2023-11-21 22:22:02,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 626.6666666666666) internal successors, (1880), 3 states have internal predecessors, (1880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:02,709 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:22:02,709 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:02,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-21 22:22:02,710 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread3Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-21 22:22:02,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:02,710 INFO L85 PathProgramCache]: Analyzing trace with hash -688316023, now seen corresponding path program 1 times [2023-11-21 22:22:02,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:02,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792321749] [2023-11-21 22:22:02,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:02,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:02,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:02,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:02,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:02,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792321749] [2023-11-21 22:22:02,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792321749] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:02,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:02,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:22:02,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530389355] [2023-11-21 22:22:02,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:02,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:22:02,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:02,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:22:02,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:02,825 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 605 out of 655 [2023-11-21 22:22:02,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 552 places, 558 transitions, 1141 flow. Second operand has 3 states, 3 states have (on average 606.6666666666666) internal successors, (1820), 3 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:02,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:22:02,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 605 of 655 [2023-11-21 22:22:02,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:22:03,043 INFO L124 PetriNetUnfolderBase]: 44/709 cut-off events. [2023-11-21 22:22:03,043 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2023-11-21 22:22:03,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 798 conditions, 709 events. 44/709 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2307 event pairs, 18 based on Foata normal form. 0/644 useless extension candidates. Maximal degree in co-relation 748. Up to 61 conditions per place. [2023-11-21 22:22:03,052 INFO L140 encePairwiseOnDemand]: 644/655 looper letters, 25 selfloop transitions, 2 changer transitions 0/551 dead transitions. [2023-11-21 22:22:03,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 545 places, 551 transitions, 1183 flow [2023-11-21 22:22:03,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:22:03,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:22:03,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1851 transitions. [2023-11-21 22:22:03,059 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9419847328244275 [2023-11-21 22:22:03,059 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1851 transitions. [2023-11-21 22:22:03,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1851 transitions. [2023-11-21 22:22:03,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:22:03,061 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1851 transitions. [2023-11-21 22:22:03,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2023-11-21 22:22:03,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:03,072 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:03,072 INFO L175 Difference]: Start difference. First operand has 552 places, 558 transitions, 1141 flow. Second operand 3 states and 1851 transitions. [2023-11-21 22:22:03,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 545 places, 551 transitions, 1183 flow [2023-11-21 22:22:03,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 543 places, 551 transitions, 1177 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:22:03,086 INFO L231 Difference]: Finished difference. Result has 543 places, 549 transitions, 1121 flow [2023-11-21 22:22:03,088 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1117, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=547, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1121, PETRI_PLACES=543, PETRI_TRANSITIONS=549} [2023-11-21 22:22:03,088 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -58 predicate places. [2023-11-21 22:22:03,089 INFO L495 AbstractCegarLoop]: Abstraction has has 543 places, 549 transitions, 1121 flow [2023-11-21 22:22:03,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 606.6666666666666) internal successors, (1820), 3 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:03,090 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:22:03,090 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:03,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-21 22:22:03,090 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-21 22:22:03,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:03,091 INFO L85 PathProgramCache]: Analyzing trace with hash -651494959, now seen corresponding path program 1 times [2023-11-21 22:22:03,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:03,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227598120] [2023-11-21 22:22:03,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:03,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:03,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:03,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:03,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:03,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227598120] [2023-11-21 22:22:03,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227598120] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:03,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:03,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:22:03,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852447575] [2023-11-21 22:22:03,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:03,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:22:03,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:03,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:22:03,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:03,213 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 620 out of 655 [2023-11-21 22:22:03,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 543 places, 549 transitions, 1121 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) [2023-11-21 22:22:03,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:22:03,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 620 of 655 [2023-11-21 22:22:03,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:22:03,559 INFO L124 PetriNetUnfolderBase]: 62/1118 cut-off events. [2023-11-21 22:22:03,559 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-21 22:22:03,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1227 conditions, 1118 events. 62/1118 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4636 event pairs, 2 based on Foata normal form. 0/1015 useless extension candidates. Maximal degree in co-relation 1177. Up to 52 conditions per place. [2023-11-21 22:22:03,576 INFO L140 encePairwiseOnDemand]: 647/655 looper letters, 20 selfloop transitions, 4 changer transitions 0/554 dead transitions. [2023-11-21 22:22:03,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 554 transitions, 1184 flow [2023-11-21 22:22:03,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:22:03,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:22:03,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1888 transitions. [2023-11-21 22:22:03,584 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9608142493638677 [2023-11-21 22:22:03,584 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1888 transitions. [2023-11-21 22:22:03,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1888 transitions. [2023-11-21 22:22:03,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:22:03,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1888 transitions. [2023-11-21 22:22:03,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 629.3333333333334) internal successors, (1888), 3 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:03,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:03,601 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:03,601 INFO L175 Difference]: Start difference. First operand has 543 places, 549 transitions, 1121 flow. Second operand 3 states and 1888 transitions. [2023-11-21 22:22:03,601 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 541 places, 554 transitions, 1184 flow [2023-11-21 22:22:03,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 539 places, 554 transitions, 1180 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:22:03,619 INFO L231 Difference]: Finished difference. Result has 540 places, 549 transitions, 1137 flow [2023-11-21 22:22:03,620 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1109, PETRI_DIFFERENCE_MINUEND_PLACES=537, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=541, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1137, PETRI_PLACES=540, PETRI_TRANSITIONS=549} [2023-11-21 22:22:03,622 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -61 predicate places. [2023-11-21 22:22:03,622 INFO L495 AbstractCegarLoop]: Abstraction has has 540 places, 549 transitions, 1137 flow [2023-11-21 22:22:03,623 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) [2023-11-21 22:22:03,624 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:22:03,624 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:03,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-21 22:22:03,625 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-21 22:22:03,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:03,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1921018456, now seen corresponding path program 1 times [2023-11-21 22:22:03,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:03,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360589557] [2023-11-21 22:22:03,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:03,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:03,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:03,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:03,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:03,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360589557] [2023-11-21 22:22:03,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360589557] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:03,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:03,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:22:03,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088679643] [2023-11-21 22:22:03,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:03,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:22:03,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:03,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:22:03,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:03,741 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 625 out of 655 [2023-11-21 22:22:03,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 540 places, 549 transitions, 1137 flow. Second operand has 3 states, 3 states have (on average 627.0) internal successors, (1881), 3 states have internal predecessors, (1881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:03,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:22:03,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 625 of 655 [2023-11-21 22:22:03,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:22:04,055 INFO L124 PetriNetUnfolderBase]: 63/960 cut-off events. [2023-11-21 22:22:04,056 INFO L125 PetriNetUnfolderBase]: For 24/34 co-relation queries the response was YES. [2023-11-21 22:22:04,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1078 conditions, 960 events. 63/960 cut-off events. For 24/34 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3923 event pairs, 18 based on Foata normal form. 0/863 useless extension candidates. Maximal degree in co-relation 1028. Up to 57 conditions per place. [2023-11-21 22:22:04,075 INFO L140 encePairwiseOnDemand]: 651/655 looper letters, 14 selfloop transitions, 3 changer transitions 0/552 dead transitions. [2023-11-21 22:22:04,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 552 transitions, 1179 flow [2023-11-21 22:22:04,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:22:04,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:22:04,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1893 transitions. [2023-11-21 22:22:04,083 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9633587786259542 [2023-11-21 22:22:04,084 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1893 transitions. [2023-11-21 22:22:04,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1893 transitions. [2023-11-21 22:22:04,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:22:04,087 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1893 transitions. [2023-11-21 22:22:04,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 631.0) internal successors, (1893), 3 states have internal predecessors, (1893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:04,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:04,102 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:04,104 INFO L175 Difference]: Start difference. First operand has 540 places, 549 transitions, 1137 flow. Second operand 3 states and 1893 transitions. [2023-11-21 22:22:04,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 542 places, 552 transitions, 1179 flow [2023-11-21 22:22:04,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 552 transitions, 1179 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:22:04,120 INFO L231 Difference]: Finished difference. Result has 544 places, 550 transitions, 1155 flow [2023-11-21 22:22:04,122 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1137, PETRI_DIFFERENCE_MINUEND_PLACES=540, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=546, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1155, PETRI_PLACES=544, PETRI_TRANSITIONS=550} [2023-11-21 22:22:04,123 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -57 predicate places. [2023-11-21 22:22:04,123 INFO L495 AbstractCegarLoop]: Abstraction has has 544 places, 550 transitions, 1155 flow [2023-11-21 22:22:04,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 627.0) internal successors, (1881), 3 states have internal predecessors, (1881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:04,126 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:22:04,127 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:04,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-21 22:22:04,127 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-21 22:22:04,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:04,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1753253696, now seen corresponding path program 1 times [2023-11-21 22:22:04,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:04,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140507285] [2023-11-21 22:22:04,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:04,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:04,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:05,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:05,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:05,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140507285] [2023-11-21 22:22:05,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140507285] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:05,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:05,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:22:05,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382859198] [2023-11-21 22:22:05,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:05,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:22:05,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:05,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:22:05,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:22:06,161 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 611 out of 655 [2023-11-21 22:22:06,167 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 544 places, 550 transitions, 1155 flow. Second operand has 6 states, 6 states have (on average 612.6666666666666) internal successors, (3676), 6 states have internal predecessors, (3676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:06,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:22:06,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 611 of 655 [2023-11-21 22:22:06,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:22:06,359 INFO L124 PetriNetUnfolderBase]: 30/755 cut-off events. [2023-11-21 22:22:06,359 INFO L125 PetriNetUnfolderBase]: For 9/16 co-relation queries the response was YES. [2023-11-21 22:22:06,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 831 conditions, 755 events. 30/755 cut-off events. For 9/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2022 event pairs, 0 based on Foata normal form. 4/699 useless extension candidates. Maximal degree in co-relation 777. Up to 18 conditions per place. [2023-11-21 22:22:06,369 INFO L140 encePairwiseOnDemand]: 650/655 looper letters, 21 selfloop transitions, 4 changer transitions 0/549 dead transitions. [2023-11-21 22:22:06,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 548 places, 549 transitions, 1203 flow [2023-11-21 22:22:06,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:22:06,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:22:06,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3692 transitions. [2023-11-21 22:22:06,383 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9394402035623409 [2023-11-21 22:22:06,384 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3692 transitions. [2023-11-21 22:22:06,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3692 transitions. [2023-11-21 22:22:06,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:22:06,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3692 transitions. [2023-11-21 22:22:06,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 615.3333333333334) internal successors, (3692), 6 states have internal predecessors, (3692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:06,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 655.0) internal successors, (4585), 7 states have internal predecessors, (4585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:06,406 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 655.0) internal successors, (4585), 7 states have internal predecessors, (4585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:06,406 INFO L175 Difference]: Start difference. First operand has 544 places, 550 transitions, 1155 flow. Second operand 6 states and 3692 transitions. [2023-11-21 22:22:06,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 548 places, 549 transitions, 1203 flow [2023-11-21 22:22:06,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 546 places, 549 transitions, 1197 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:22:06,422 INFO L231 Difference]: Finished difference. Result has 546 places, 549 transitions, 1155 flow [2023-11-21 22:22:06,423 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1147, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=545, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1155, PETRI_PLACES=546, PETRI_TRANSITIONS=549} [2023-11-21 22:22:06,424 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -55 predicate places. [2023-11-21 22:22:06,424 INFO L495 AbstractCegarLoop]: Abstraction has has 546 places, 549 transitions, 1155 flow [2023-11-21 22:22:06,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 612.6666666666666) internal successors, (3676), 6 states have internal predecessors, (3676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:06,425 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:22:06,426 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:06,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-21 22:22:06,426 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-21 22:22:06,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:06,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1625935771, now seen corresponding path program 1 times [2023-11-21 22:22:06,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:06,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266573623] [2023-11-21 22:22:06,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:06,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:06,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:06,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:06,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:06,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266573623] [2023-11-21 22:22:06,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266573623] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:06,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:06,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:22:06,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246510507] [2023-11-21 22:22:06,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:06,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:22:06,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:06,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:22:06,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:06,534 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 620 out of 655 [2023-11-21 22:22:06,537 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 546 places, 549 transitions, 1155 flow. Second operand has 3 states, 3 states have (on average 621.6666666666666) internal successors, (1865), 3 states have internal predecessors, (1865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:06,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:22:06,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 620 of 655 [2023-11-21 22:22:06,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:22:06,941 INFO L124 PetriNetUnfolderBase]: 107/1756 cut-off events. [2023-11-21 22:22:06,942 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-21 22:22:06,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1972 conditions, 1756 events. 107/1756 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 9876 event pairs, 8 based on Foata normal form. 0/1599 useless extension candidates. Maximal degree in co-relation 1920. Up to 76 conditions per place. [2023-11-21 22:22:06,961 INFO L140 encePairwiseOnDemand]: 647/655 looper letters, 20 selfloop transitions, 4 changer transitions 0/554 dead transitions. [2023-11-21 22:22:06,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 554 transitions, 1218 flow [2023-11-21 22:22:06,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:22:06,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:22:06,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1888 transitions. [2023-11-21 22:22:06,968 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9608142493638677 [2023-11-21 22:22:06,968 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1888 transitions. [2023-11-21 22:22:06,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1888 transitions. [2023-11-21 22:22:06,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:22:06,970 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1888 transitions. [2023-11-21 22:22:06,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 629.3333333333334) internal successors, (1888), 3 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:06,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:06,981 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:06,981 INFO L175 Difference]: Start difference. First operand has 546 places, 549 transitions, 1155 flow. Second operand 3 states and 1888 transitions. [2023-11-21 22:22:06,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 554 transitions, 1218 flow [2023-11-21 22:22:06,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 540 places, 554 transitions, 1211 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 22:22:06,997 INFO L231 Difference]: Finished difference. Result has 541 places, 549 transitions, 1168 flow [2023-11-21 22:22:06,998 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1140, PETRI_DIFFERENCE_MINUEND_PLACES=538, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=541, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1168, PETRI_PLACES=541, PETRI_TRANSITIONS=549} [2023-11-21 22:22:06,999 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -60 predicate places. [2023-11-21 22:22:06,999 INFO L495 AbstractCegarLoop]: Abstraction has has 541 places, 549 transitions, 1168 flow [2023-11-21 22:22:07,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 621.6666666666666) internal successors, (1865), 3 states have internal predecessors, (1865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:07,000 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:22:07,000 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:07,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-21 22:22:07,001 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-21 22:22:07,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:07,001 INFO L85 PathProgramCache]: Analyzing trace with hash 674895095, now seen corresponding path program 1 times [2023-11-21 22:22:07,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:07,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200313190] [2023-11-21 22:22:07,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:07,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:07,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:07,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:07,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:07,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200313190] [2023-11-21 22:22:07,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200313190] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:07,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:07,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-21 22:22:07,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871189518] [2023-11-21 22:22:07,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:07,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:22:07,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:07,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:22:07,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:22:07,991 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 594 out of 655 [2023-11-21 22:22:07,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 541 places, 549 transitions, 1168 flow. Second operand has 8 states, 8 states have (on average 598.125) internal successors, (4785), 8 states have internal predecessors, (4785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:07,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:22:07,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 594 of 655 [2023-11-21 22:22:07,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:22:08,946 INFO L124 PetriNetUnfolderBase]: 161/2501 cut-off events. [2023-11-21 22:22:08,946 INFO L125 PetriNetUnfolderBase]: For 34/62 co-relation queries the response was YES. [2023-11-21 22:22:08,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3018 conditions, 2501 events. 161/2501 cut-off events. For 34/62 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 15457 event pairs, 14 based on Foata normal form. 5/2323 useless extension candidates. Maximal degree in co-relation 2963. Up to 88 conditions per place. [2023-11-21 22:22:08,991 INFO L140 encePairwiseOnDemand]: 638/655 looper letters, 78 selfloop transitions, 22 changer transitions 0/603 dead transitions. [2023-11-21 22:22:08,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 553 places, 603 transitions, 1509 flow [2023-11-21 22:22:08,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-21 22:22:08,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-21 22:22:09,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 7823 transitions. [2023-11-21 22:22:09,025 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.91873165002936 [2023-11-21 22:22:09,025 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 7823 transitions. [2023-11-21 22:22:09,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 7823 transitions. [2023-11-21 22:22:09,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:22:09,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 7823 transitions. [2023-11-21 22:22:09,050 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 601.7692307692307) internal successors, (7823), 13 states have internal predecessors, (7823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:09,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 655.0) internal successors, (9170), 14 states have internal predecessors, (9170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:09,076 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 655.0) internal successors, (9170), 14 states have internal predecessors, (9170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:09,077 INFO L175 Difference]: Start difference. First operand has 541 places, 549 transitions, 1168 flow. Second operand 13 states and 7823 transitions. [2023-11-21 22:22:09,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 553 places, 603 transitions, 1509 flow [2023-11-21 22:22:09,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 553 places, 603 transitions, 1509 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:22:09,094 INFO L231 Difference]: Finished difference. Result has 558 places, 561 transitions, 1281 flow [2023-11-21 22:22:09,095 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1168, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=533, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1281, PETRI_PLACES=558, PETRI_TRANSITIONS=561} [2023-11-21 22:22:09,096 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -43 predicate places. [2023-11-21 22:22:09,096 INFO L495 AbstractCegarLoop]: Abstraction has has 558 places, 561 transitions, 1281 flow [2023-11-21 22:22:09,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 598.125) internal successors, (4785), 8 states have internal predecessors, (4785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:09,098 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:22:09,099 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:09,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-21 22:22:09,099 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-21 22:22:09,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:09,100 INFO L85 PathProgramCache]: Analyzing trace with hash 2020870411, now seen corresponding path program 1 times [2023-11-21 22:22:09,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:09,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360241142] [2023-11-21 22:22:09,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:09,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:09,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:09,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:09,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:09,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360241142] [2023-11-21 22:22:09,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360241142] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:09,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:09,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-21 22:22:09,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235906450] [2023-11-21 22:22:09,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:09,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:22:09,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:09,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:22:09,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:22:10,313 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 594 out of 655 [2023-11-21 22:22:10,318 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 558 places, 561 transitions, 1281 flow. Second operand has 8 states, 8 states have (on average 598.25) internal successors, (4786), 8 states have internal predecessors, (4786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:10,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:22:10,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 594 of 655 [2023-11-21 22:22:10,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:22:12,122 INFO L124 PetriNetUnfolderBase]: 396/5670 cut-off events. [2023-11-21 22:22:12,122 INFO L125 PetriNetUnfolderBase]: For 246/296 co-relation queries the response was YES. [2023-11-21 22:22:12,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6850 conditions, 5670 events. 396/5670 cut-off events. For 246/296 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 51196 event pairs, 68 based on Foata normal form. 16/5179 useless extension candidates. Maximal degree in co-relation 6784. Up to 201 conditions per place. [2023-11-21 22:22:12,230 INFO L140 encePairwiseOnDemand]: 638/655 looper letters, 74 selfloop transitions, 19 changer transitions 0/603 dead transitions. [2023-11-21 22:22:12,230 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 569 places, 603 transitions, 1581 flow [2023-11-21 22:22:12,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-21 22:22:12,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-21 22:22:12,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 7216 transitions. [2023-11-21 22:22:12,258 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9180661577608142 [2023-11-21 22:22:12,258 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 7216 transitions. [2023-11-21 22:22:12,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 7216 transitions. [2023-11-21 22:22:12,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:22:12,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 7216 transitions. [2023-11-21 22:22:12,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 601.3333333333334) internal successors, (7216), 12 states have internal predecessors, (7216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:12,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 655.0) internal successors, (8515), 13 states have internal predecessors, (8515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:12,293 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 655.0) internal successors, (8515), 13 states have internal predecessors, (8515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:12,293 INFO L175 Difference]: Start difference. First operand has 558 places, 561 transitions, 1281 flow. Second operand 12 states and 7216 transitions. [2023-11-21 22:22:12,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 569 places, 603 transitions, 1581 flow [2023-11-21 22:22:12,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 569 places, 603 transitions, 1581 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:22:12,313 INFO L231 Difference]: Finished difference. Result has 574 places, 572 transitions, 1388 flow [2023-11-21 22:22:12,314 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1281, PETRI_DIFFERENCE_MINUEND_PLACES=558, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=561, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=545, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1388, PETRI_PLACES=574, PETRI_TRANSITIONS=572} [2023-11-21 22:22:12,315 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -27 predicate places. [2023-11-21 22:22:12,315 INFO L495 AbstractCegarLoop]: Abstraction has has 574 places, 572 transitions, 1388 flow [2023-11-21 22:22:12,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 598.25) internal successors, (4786), 8 states have internal predecessors, (4786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:12,316 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:22:12,317 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:12,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-21 22:22:12,317 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread3Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-21 22:22:12,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:12,318 INFO L85 PathProgramCache]: Analyzing trace with hash -46422532, now seen corresponding path program 1 times [2023-11-21 22:22:12,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:12,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346896330] [2023-11-21 22:22:12,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:12,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:12,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:12,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:12,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346896330] [2023-11-21 22:22:12,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346896330] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:12,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:12,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:22:12,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332497220] [2023-11-21 22:22:12,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:12,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:22:12,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:12,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:22:12,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:22:12,421 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 625 out of 655 [2023-11-21 22:22:12,424 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 574 places, 572 transitions, 1388 flow. Second operand has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:12,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:22:12,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 625 of 655 [2023-11-21 22:22:12,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:22:14,491 INFO L124 PetriNetUnfolderBase]: 626/6434 cut-off events. [2023-11-21 22:22:14,491 INFO L125 PetriNetUnfolderBase]: For 483/579 co-relation queries the response was YES. [2023-11-21 22:22:14,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7826 conditions, 6434 events. 626/6434 cut-off events. For 483/579 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 61361 event pairs, 220 based on Foata normal form. 2/5699 useless extension candidates. Maximal degree in co-relation 7752. Up to 627 conditions per place. [2023-11-21 22:22:14,589 INFO L140 encePairwiseOnDemand]: 651/655 looper letters, 14 selfloop transitions, 3 changer transitions 0/575 dead transitions. [2023-11-21 22:22:14,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 576 places, 575 transitions, 1430 flow [2023-11-21 22:22:14,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:22:14,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:22:14,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1893 transitions. [2023-11-21 22:22:14,595 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9633587786259542 [2023-11-21 22:22:14,596 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1893 transitions. [2023-11-21 22:22:14,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1893 transitions. [2023-11-21 22:22:14,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:22:14,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1893 transitions. [2023-11-21 22:22:14,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 631.0) internal successors, (1893), 3 states have internal predecessors, (1893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:14,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:14,604 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:14,605 INFO L175 Difference]: Start difference. First operand has 574 places, 572 transitions, 1388 flow. Second operand 3 states and 1893 transitions. [2023-11-21 22:22:14,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 576 places, 575 transitions, 1430 flow [2023-11-21 22:22:14,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 576 places, 575 transitions, 1430 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:22:14,623 INFO L231 Difference]: Finished difference. Result has 578 places, 573 transitions, 1406 flow [2023-11-21 22:22:14,624 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1388, PETRI_DIFFERENCE_MINUEND_PLACES=574, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=572, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=569, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1406, PETRI_PLACES=578, PETRI_TRANSITIONS=573} [2023-11-21 22:22:14,625 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -23 predicate places. [2023-11-21 22:22:14,625 INFO L495 AbstractCegarLoop]: Abstraction has has 578 places, 573 transitions, 1406 flow [2023-11-21 22:22:14,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:14,625 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:22:14,626 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:14,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-21 22:22:14,626 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread3Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-21 22:22:14,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:14,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1991312736, now seen corresponding path program 1 times [2023-11-21 22:22:14,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:14,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311217748] [2023-11-21 22:22:14,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:14,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:14,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:14,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:14,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:14,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311217748] [2023-11-21 22:22:14,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311217748] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:14,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:14,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-21 22:22:14,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449826331] [2023-11-21 22:22:14,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:14,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:22:14,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:14,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:22:14,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:22:15,877 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 594 out of 655 [2023-11-21 22:22:15,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 578 places, 573 transitions, 1406 flow. Second operand has 8 states, 8 states have (on average 598.375) internal successors, (4787), 8 states have internal predecessors, (4787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:15,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:22:15,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 594 of 655 [2023-11-21 22:22:15,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:22:18,574 INFO L124 PetriNetUnfolderBase]: 666/7768 cut-off events. [2023-11-21 22:22:18,574 INFO L125 PetriNetUnfolderBase]: For 623/668 co-relation queries the response was YES. [2023-11-21 22:22:18,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9747 conditions, 7768 events. 666/7768 cut-off events. For 623/668 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 78796 event pairs, 135 based on Foata normal form. 9/7019 useless extension candidates. Maximal degree in co-relation 9668. Up to 493 conditions per place. [2023-11-21 22:22:18,661 INFO L140 encePairwiseOnDemand]: 638/655 looper letters, 87 selfloop transitions, 19 changer transitions 0/623 dead transitions. [2023-11-21 22:22:18,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 589 places, 623 transitions, 1791 flow [2023-11-21 22:22:18,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-21 22:22:18,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-21 22:22:18,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 7224 transitions. [2023-11-21 22:22:18,679 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9190839694656489 [2023-11-21 22:22:18,679 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 7224 transitions. [2023-11-21 22:22:18,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 7224 transitions. [2023-11-21 22:22:18,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:22:18,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 7224 transitions. [2023-11-21 22:22:18,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 602.0) internal successors, (7224), 12 states have internal predecessors, (7224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:18,709 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 655.0) internal successors, (8515), 13 states have internal predecessors, (8515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:18,711 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 655.0) internal successors, (8515), 13 states have internal predecessors, (8515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:18,711 INFO L175 Difference]: Start difference. First operand has 578 places, 573 transitions, 1406 flow. Second operand 12 states and 7224 transitions. [2023-11-21 22:22:18,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 589 places, 623 transitions, 1791 flow [2023-11-21 22:22:18,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 587 places, 623 transitions, 1775 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:22:18,737 INFO L231 Difference]: Finished difference. Result has 590 places, 579 transitions, 1486 flow [2023-11-21 22:22:18,738 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1400, PETRI_DIFFERENCE_MINUEND_PLACES=576, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=573, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=555, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1486, PETRI_PLACES=590, PETRI_TRANSITIONS=579} [2023-11-21 22:22:18,738 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -11 predicate places. [2023-11-21 22:22:18,738 INFO L495 AbstractCegarLoop]: Abstraction has has 590 places, 579 transitions, 1486 flow [2023-11-21 22:22:18,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 598.375) internal successors, (4787), 8 states have internal predecessors, (4787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:18,740 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:22:18,740 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:18,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-21 22:22:18,741 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-21 22:22:18,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:18,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1740823094, now seen corresponding path program 1 times [2023-11-21 22:22:18,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:18,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066093809] [2023-11-21 22:22:18,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:18,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:18,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:19,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 22:22:19,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:19,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066093809] [2023-11-21 22:22:19,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066093809] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:19,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:19,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-21 22:22:19,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288638820] [2023-11-21 22:22:19,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:19,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:22:19,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:19,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:22:19,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:22:19,707 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 594 out of 655 [2023-11-21 22:22:19,712 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 590 places, 579 transitions, 1486 flow. Second operand has 8 states, 8 states have (on average 598.25) internal successors, (4786), 8 states have internal predecessors, (4786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:19,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:22:19,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 594 of 655 [2023-11-21 22:22:19,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:22:21,676 INFO L124 PetriNetUnfolderBase]: 284/5661 cut-off events. [2023-11-21 22:22:21,676 INFO L125 PetriNetUnfolderBase]: For 283/381 co-relation queries the response was YES. [2023-11-21 22:22:21,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6965 conditions, 5661 events. 284/5661 cut-off events. For 283/381 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 45843 event pairs, 37 based on Foata normal form. 11/5268 useless extension candidates. Maximal degree in co-relation 6878. Up to 193 conditions per place. [2023-11-21 22:22:21,770 INFO L140 encePairwiseOnDemand]: 638/655 looper letters, 79 selfloop transitions, 24 changer transitions 0/619 dead transitions. [2023-11-21 22:22:21,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 601 places, 619 transitions, 1830 flow [2023-11-21 22:22:21,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-21 22:22:21,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-21 22:22:21,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 7219 transitions. [2023-11-21 22:22:21,781 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9184478371501272 [2023-11-21 22:22:21,781 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 7219 transitions. [2023-11-21 22:22:21,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 7219 transitions. [2023-11-21 22:22:21,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:22:21,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 7219 transitions. [2023-11-21 22:22:21,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 601.5833333333334) internal successors, (7219), 12 states have internal predecessors, (7219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:21,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 655.0) internal successors, (8515), 13 states have internal predecessors, (8515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:21,811 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 655.0) internal successors, (8515), 13 states have internal predecessors, (8515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:21,811 INFO L175 Difference]: Start difference. First operand has 590 places, 579 transitions, 1486 flow. Second operand 12 states and 7219 transitions. [2023-11-21 22:22:21,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 601 places, 619 transitions, 1830 flow [2023-11-21 22:22:21,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 595 places, 619 transitions, 1813 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-21 22:22:21,832 INFO L231 Difference]: Finished difference. Result has 598 places, 585 transitions, 1584 flow [2023-11-21 22:22:21,833 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1469, PETRI_DIFFERENCE_MINUEND_PLACES=584, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=579, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=559, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1584, PETRI_PLACES=598, PETRI_TRANSITIONS=585} [2023-11-21 22:22:21,834 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -3 predicate places. [2023-11-21 22:22:21,835 INFO L495 AbstractCegarLoop]: Abstraction has has 598 places, 585 transitions, 1584 flow [2023-11-21 22:22:21,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 598.25) internal successors, (4786), 8 states have internal predecessors, (4786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:21,836 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:22:21,836 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:21,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-21 22:22:21,837 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-21 22:22:21,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:21,837 INFO L85 PathProgramCache]: Analyzing trace with hash 390704581, now seen corresponding path program 1 times [2023-11-21 22:22:21,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:21,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968541602] [2023-11-21 22:22:21,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:21,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:21,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:22,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:22,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:22,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968541602] [2023-11-21 22:22:22,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968541602] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:22,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:22,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:22:22,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151291384] [2023-11-21 22:22:22,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:22,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:22:22,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:22,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:22:22,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:22:23,714 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 611 out of 655 [2023-11-21 22:22:23,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 598 places, 585 transitions, 1584 flow. Second operand has 6 states, 6 states have (on average 612.8333333333334) internal successors, (3677), 6 states have internal predecessors, (3677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:23,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:22:23,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 611 of 655 [2023-11-21 22:22:23,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:22:24,960 INFO L124 PetriNetUnfolderBase]: 184/5135 cut-off events. [2023-11-21 22:22:24,960 INFO L125 PetriNetUnfolderBase]: For 224/298 co-relation queries the response was YES. [2023-11-21 22:22:25,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6060 conditions, 5135 events. 184/5135 cut-off events. For 224/298 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 40457 event pairs, 9 based on Foata normal form. 28/4802 useless extension candidates. Maximal degree in co-relation 5965. Up to 96 conditions per place. [2023-11-21 22:22:25,024 INFO L140 encePairwiseOnDemand]: 650/655 looper letters, 21 selfloop transitions, 4 changer transitions 0/584 dead transitions. [2023-11-21 22:22:25,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 602 places, 584 transitions, 1632 flow [2023-11-21 22:22:25,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:22:25,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:22:25,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3692 transitions. [2023-11-21 22:22:25,029 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9394402035623409 [2023-11-21 22:22:25,029 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3692 transitions. [2023-11-21 22:22:25,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3692 transitions. [2023-11-21 22:22:25,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:22:25,030 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3692 transitions. [2023-11-21 22:22:25,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 615.3333333333334) internal successors, (3692), 6 states have internal predecessors, (3692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:25,039 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 655.0) internal successors, (4585), 7 states have internal predecessors, (4585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:25,039 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 655.0) internal successors, (4585), 7 states have internal predecessors, (4585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:25,040 INFO L175 Difference]: Start difference. First operand has 598 places, 585 transitions, 1584 flow. Second operand 6 states and 3692 transitions. [2023-11-21 22:22:25,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 602 places, 584 transitions, 1632 flow [2023-11-21 22:22:25,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 595 places, 584 transitions, 1613 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-11-21 22:22:25,058 INFO L231 Difference]: Finished difference. Result has 595 places, 584 transitions, 1571 flow [2023-11-21 22:22:25,059 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1563, PETRI_DIFFERENCE_MINUEND_PLACES=590, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=584, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=580, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1571, PETRI_PLACES=595, PETRI_TRANSITIONS=584} [2023-11-21 22:22:25,060 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -6 predicate places. [2023-11-21 22:22:25,060 INFO L495 AbstractCegarLoop]: Abstraction has has 595 places, 584 transitions, 1571 flow [2023-11-21 22:22:25,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 612.8333333333334) internal successors, (3677), 6 states have internal predecessors, (3677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:25,061 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:22:25,061 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:22:25,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-21 22:22:25,062 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-21 22:22:25,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:22:25,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1796255893, now seen corresponding path program 1 times [2023-11-21 22:22:25,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:22:25,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269531750] [2023-11-21 22:22:25,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:22:25,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:22:25,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:22:25,384 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 22:22:25,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:22:25,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269531750] [2023-11-21 22:22:25,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269531750] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:25,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:25,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-21 22:22:25,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473493628] [2023-11-21 22:22:25,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:25,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:22:25,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:22:25,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:22:25,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56