./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff 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_839819b8-a307-436f-aeb3-e11cbd80f37f/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839819b8-a307-436f-aeb3-e11cbd80f37f/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839819b8-a307-436f-aeb3-e11cbd80f37f/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839819b8-a307-436f-aeb3-e11cbd80f37f/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839819b8-a307-436f-aeb3-e11cbd80f37f/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839819b8-a307-436f-aeb3-e11cbd80f37f/bin/uautomizer-verify-uCwYo4JHxu --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 20832c4ec3f8ccecbcf7cfcec0aecbbc925bfb9e6d8397db46b5825bb40681b3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:47:54,927 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:47:55,047 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839819b8-a307-436f-aeb3-e11cbd80f37f/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:47:55,052 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:47:55,053 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:47:55,093 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:47:55,094 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:47:55,095 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:47:55,095 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:47:55,096 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:47:55,097 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:47:55,098 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:47:55,098 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:47:55,099 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:47:55,099 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:47:55,100 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:47:55,101 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:47:55,101 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:47:55,102 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:47:55,102 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:47:55,103 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:47:55,104 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:47:55,104 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:47:55,105 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:47:55,105 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:47:55,105 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:47:55,106 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:47:55,106 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:47:55,107 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:47:55,107 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:47:55,107 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:47:55,108 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:47:55,108 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:47:55,109 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:47:55,109 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:47:55,110 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:47:55,110 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:47:55,110 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:47:55,111 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:47:55,111 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:47:55,122 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:47:55,122 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_839819b8-a307-436f-aeb3-e11cbd80f37f/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839819b8-a307-436f-aeb3-e11cbd80f37f/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20832c4ec3f8ccecbcf7cfcec0aecbbc925bfb9e6d8397db46b5825bb40681b3 [2023-11-19 07:47:55,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:47:55,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:47:55,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:47:55,554 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:47:55,554 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:47:55,555 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839819b8-a307-436f-aeb3-e11cbd80f37f/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c [2023-11-19 07:47:58,559 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:47:58,824 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:47:58,825 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839819b8-a307-436f-aeb3-e11cbd80f37f/sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c [2023-11-19 07:47:58,835 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839819b8-a307-436f-aeb3-e11cbd80f37f/bin/uautomizer-verify-uCwYo4JHxu/data/7d18d1386/9508820f603549aebc2ffdbd17294b83/FLAG64687d63a [2023-11-19 07:47:58,860 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839819b8-a307-436f-aeb3-e11cbd80f37f/bin/uautomizer-verify-uCwYo4JHxu/data/7d18d1386/9508820f603549aebc2ffdbd17294b83 [2023-11-19 07:47:58,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:47:58,865 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:47:58,867 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:47:58,867 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:47:58,873 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:47:58,874 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:47:58" (1/1) ... [2023-11-19 07:47:58,875 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49a97078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:58, skipping insertion in model container [2023-11-19 07:47:58,876 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:47:58" (1/1) ... [2023-11-19 07:47:58,909 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:47:59,155 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:47:59,167 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:47:59,209 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:47:59,224 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:47:59,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:59 WrapperNode [2023-11-19 07:47:59,225 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:47:59,226 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:47:59,226 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:47:59,226 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:47:59,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:59" (1/1) ... [2023-11-19 07:47:59,249 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:59" (1/1) ... [2023-11-19 07:47:59,313 INFO L138 Inliner]: procedures = 26, calls = 46, calls flagged for inlining = 16, calls inlined = 28, statements flattened = 417 [2023-11-19 07:47:59,314 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:47:59,315 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:47:59,315 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:47:59,315 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:47:59,326 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:59" (1/1) ... [2023-11-19 07:47:59,327 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:59" (1/1) ... [2023-11-19 07:47:59,337 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:59" (1/1) ... [2023-11-19 07:47:59,337 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:59" (1/1) ... [2023-11-19 07:47:59,366 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:59" (1/1) ... [2023-11-19 07:47:59,386 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:59" (1/1) ... [2023-11-19 07:47:59,390 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:59" (1/1) ... [2023-11-19 07:47:59,393 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:59" (1/1) ... [2023-11-19 07:47:59,400 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:47:59,401 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:47:59,401 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:47:59,402 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:47:59,403 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:59" (1/1) ... [2023-11-19 07:47:59,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:47:59,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839819b8-a307-436f-aeb3-e11cbd80f37f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:47:59,464 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839819b8-a307-436f-aeb3-e11cbd80f37f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:47:59,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_839819b8-a307-436f-aeb3-e11cbd80f37f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:47:59,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:47:59,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:47:59,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:47:59,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:47:59,565 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 07:47:59,566 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 07:47:59,566 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 07:47:59,567 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 07:47:59,567 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-19 07:47:59,568 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-19 07:47:59,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:47:59,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:47:59,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:47:59,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:47:59,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:47:59,575 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:47:59,771 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:47:59,775 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:48:00,661 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:48:00,687 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:48:00,688 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-19 07:48:00,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:00 BoogieIcfgContainer [2023-11-19 07:48:00,702 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:48:00,709 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:48:00,709 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:48:00,714 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:48:00,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:47:58" (1/3) ... [2023-11-19 07:48:00,716 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e7e201c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:48:00, skipping insertion in model container [2023-11-19 07:48:00,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:47:59" (2/3) ... [2023-11-19 07:48:00,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e7e201c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:48:00, skipping insertion in model container [2023-11-19 07:48:00,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:00" (3/3) ... [2023-11-19 07:48:00,721 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-three-array-sum-alt.wvr.c [2023-11-19 07:48:00,732 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:48:00,745 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:48:00,746 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2023-11-19 07:48:00,746 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:48:00,962 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-19 07:48:01,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 529 places, 548 transitions, 1117 flow [2023-11-19 07:48:01,492 INFO L124 PetriNetUnfolderBase]: 29/545 cut-off events. [2023-11-19 07:48:01,492 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 07:48:01,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 558 conditions, 545 events. 29/545 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 954 event pairs, 0 based on Foata normal form. 0/479 useless extension candidates. Maximal degree in co-relation 339. Up to 2 conditions per place. [2023-11-19 07:48:01,508 INFO L82 GeneralOperation]: Start removeDead. Operand has 529 places, 548 transitions, 1117 flow [2023-11-19 07:48:01,528 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 479 places, 495 transitions, 1008 flow [2023-11-19 07:48:01,532 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:48:01,552 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 479 places, 495 transitions, 1008 flow [2023-11-19 07:48:01,557 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 479 places, 495 transitions, 1008 flow [2023-11-19 07:48:01,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 479 places, 495 transitions, 1008 flow [2023-11-19 07:48:01,709 INFO L124 PetriNetUnfolderBase]: 26/495 cut-off events. [2023-11-19 07:48:01,710 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 07:48:01,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 508 conditions, 495 events. 26/495 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 837 event pairs, 0 based on Foata normal form. 0/433 useless extension candidates. Maximal degree in co-relation 339. Up to 2 conditions per place. [2023-11-19 07:48:01,756 INFO L119 LiptonReduction]: Number of co-enabled transitions 49288 [2023-11-19 07:48:16,586 INFO L134 LiptonReduction]: Checked pairs total: 173052 [2023-11-19 07:48:16,586 INFO L136 LiptonReduction]: Total number of compositions: 512 [2023-11-19 07:48:16,605 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:48:16,612 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;@64407fdb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:48:16,612 INFO L358 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2023-11-19 07:48:16,614 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:48:16,614 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 07:48:16,614 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:48:16,615 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:48:16,615 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:48:16,616 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-19 07:48:16,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:16,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1997, now seen corresponding path program 1 times [2023-11-19 07:48:16,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:16,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111342530] [2023-11-19 07:48:16,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:16,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:16,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:16,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:48:16,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:16,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111342530] [2023-11-19 07:48:16,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111342530] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:16,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:16,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:48:16,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380890037] [2023-11-19 07:48:16,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:16,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:48:16,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:16,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:48:16,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:48:16,842 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 518 out of 1060 [2023-11-19 07:48:16,848 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 126 transitions, 270 flow. Second operand has 2 states, 2 states have (on average 518.5) internal successors, (1037), 2 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:16,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:48:16,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 518 of 1060 [2023-11-19 07:48:16,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:48:17,706 INFO L124 PetriNetUnfolderBase]: 1584/4721 cut-off events. [2023-11-19 07:48:17,716 INFO L125 PetriNetUnfolderBase]: For 208/208 co-relation queries the response was YES. [2023-11-19 07:48:17,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7118 conditions, 4721 events. 1584/4721 cut-off events. For 208/208 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 41438 event pairs, 1277 based on Foata normal form. 594/4641 useless extension candidates. Maximal degree in co-relation 5832. Up to 2270 conditions per place. [2023-11-19 07:48:17,806 INFO L140 encePairwiseOnDemand]: 1036/1060 looper letters, 37 selfloop transitions, 0 changer transitions 1/102 dead transitions. [2023-11-19 07:48:17,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 102 transitions, 298 flow [2023-11-19 07:48:17,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:48:17,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:48:17,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1098 transitions. [2023-11-19 07:48:17,832 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5179245283018868 [2023-11-19 07:48:17,833 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1098 transitions. [2023-11-19 07:48:17,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1098 transitions. [2023-11-19 07:48:17,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:48:17,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1098 transitions. [2023-11-19 07:48:17,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 549.0) internal successors, (1098), 2 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:17,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1060.0) internal successors, (3180), 3 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:17,865 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1060.0) internal successors, (3180), 3 states have internal predecessors, (3180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:17,867 INFO L175 Difference]: Start difference. First operand has 127 places, 126 transitions, 270 flow. Second operand 2 states and 1098 transitions. [2023-11-19 07:48:17,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 102 transitions, 298 flow [2023-11-19 07:48:17,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 102 transitions, 286 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-19 07:48:17,879 INFO L231 Difference]: Finished difference. Result has 101 places, 101 transitions, 207 flow [2023-11-19 07:48:17,881 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1060, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=207, PETRI_PLACES=101, PETRI_TRANSITIONS=101} [2023-11-19 07:48:17,886 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -26 predicate places. [2023-11-19 07:48:17,887 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 101 transitions, 207 flow [2023-11-19 07:48:17,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 518.5) internal successors, (1037), 2 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:17,888 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:48:17,888 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:17,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:48:17,889 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-19 07:48:17,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:17,890 INFO L85 PathProgramCache]: Analyzing trace with hash 138613463, now seen corresponding path program 1 times [2023-11-19 07:48:17,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:17,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190842835] [2023-11-19 07:48:17,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:17,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:18,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:18,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:48:18,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:18,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190842835] [2023-11-19 07:48:18,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190842835] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:18,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:18,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:48:18,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048791019] [2023-11-19 07:48:18,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:18,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:48:18,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:18,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:48:18,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:48:18,215 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 499 out of 1060 [2023-11-19 07:48:18,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 101 transitions, 207 flow. Second operand has 3 states, 3 states have (on average 501.6666666666667) internal successors, (1505), 3 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:18,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:48:18,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 499 of 1060 [2023-11-19 07:48:18,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:48:19,145 INFO L124 PetriNetUnfolderBase]: 2426/6396 cut-off events. [2023-11-19 07:48:19,145 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-11-19 07:48:19,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9902 conditions, 6396 events. 2426/6396 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 53607 event pairs, 2025 based on Foata normal form. 0/5511 useless extension candidates. Maximal degree in co-relation 9899. Up to 3460 conditions per place. [2023-11-19 07:48:19,210 INFO L140 encePairwiseOnDemand]: 1056/1060 looper letters, 39 selfloop transitions, 1 changer transitions 0/98 dead transitions. [2023-11-19 07:48:19,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 98 transitions, 281 flow [2023-11-19 07:48:19,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:48:19,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:48:19,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1540 transitions. [2023-11-19 07:48:19,217 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48427672955974843 [2023-11-19 07:48:19,217 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1540 transitions. [2023-11-19 07:48:19,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1540 transitions. [2023-11-19 07:48:19,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:48:19,219 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1540 transitions. [2023-11-19 07:48:19,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 513.3333333333334) internal successors, (1540), 3 states have internal predecessors, (1540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:19,234 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1060.0) internal successors, (4240), 4 states have internal predecessors, (4240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:19,238 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1060.0) internal successors, (4240), 4 states have internal predecessors, (4240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:19,239 INFO L175 Difference]: Start difference. First operand has 101 places, 101 transitions, 207 flow. Second operand 3 states and 1540 transitions. [2023-11-19 07:48:19,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 98 transitions, 281 flow [2023-11-19 07:48:19,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 98 transitions, 281 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:48:19,243 INFO L231 Difference]: Finished difference. Result has 99 places, 98 transitions, 203 flow [2023-11-19 07:48:19,243 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1060, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=203, PETRI_PLACES=99, PETRI_TRANSITIONS=98} [2023-11-19 07:48:19,244 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -28 predicate places. [2023-11-19 07:48:19,245 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 98 transitions, 203 flow [2023-11-19 07:48:19,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 501.6666666666667) internal successors, (1505), 3 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:19,247 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:48:19,247 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:19,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:48:19,247 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-19 07:48:19,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:19,248 INFO L85 PathProgramCache]: Analyzing trace with hash 63855875, now seen corresponding path program 1 times [2023-11-19 07:48:19,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:19,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142095138] [2023-11-19 07:48:19,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:19,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:19,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:19,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:48:19,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:19,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142095138] [2023-11-19 07:48:19,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142095138] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:19,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:19,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:48:19,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379422238] [2023-11-19 07:48:19,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:19,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:48:19,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:19,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:48:19,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:48:19,378 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 511 out of 1060 [2023-11-19 07:48:19,381 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 98 transitions, 203 flow. Second operand has 3 states, 3 states have (on average 514.0) internal successors, (1542), 3 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:19,381 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:48:19,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 511 of 1060 [2023-11-19 07:48:19,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:48:20,346 INFO L124 PetriNetUnfolderBase]: 2557/6399 cut-off events. [2023-11-19 07:48:20,346 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2023-11-19 07:48:20,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10118 conditions, 6399 events. 2557/6399 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 54572 event pairs, 495 based on Foata normal form. 0/5601 useless extension candidates. Maximal degree in co-relation 10114. Up to 2923 conditions per place. [2023-11-19 07:48:20,409 INFO L140 encePairwiseOnDemand]: 1056/1060 looper letters, 59 selfloop transitions, 2 changer transitions 0/118 dead transitions. [2023-11-19 07:48:20,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 118 transitions, 369 flow [2023-11-19 07:48:20,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:48:20,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:48:20,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1596 transitions. [2023-11-19 07:48:20,416 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5018867924528302 [2023-11-19 07:48:20,417 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1596 transitions. [2023-11-19 07:48:20,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1596 transitions. [2023-11-19 07:48:20,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:48:20,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1596 transitions. [2023-11-19 07:48:20,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 532.0) internal successors, (1596), 3 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:20,434 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1060.0) internal successors, (4240), 4 states have internal predecessors, (4240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:20,438 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1060.0) internal successors, (4240), 4 states have internal predecessors, (4240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:20,439 INFO L175 Difference]: Start difference. First operand has 99 places, 98 transitions, 203 flow. Second operand 3 states and 1596 transitions. [2023-11-19 07:48:20,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 118 transitions, 369 flow [2023-11-19 07:48:20,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 118 transitions, 368 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:48:20,443 INFO L231 Difference]: Finished difference. Result has 99 places, 98 transitions, 212 flow [2023-11-19 07:48:20,444 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1060, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=212, PETRI_PLACES=99, PETRI_TRANSITIONS=98} [2023-11-19 07:48:20,445 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -28 predicate places. [2023-11-19 07:48:20,445 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 98 transitions, 212 flow [2023-11-19 07:48:20,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 514.0) internal successors, (1542), 3 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:20,448 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:48:20,448 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:20,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:48:20,449 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-19 07:48:20,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:20,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1270403807, now seen corresponding path program 1 times [2023-11-19 07:48:20,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:20,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147161939] [2023-11-19 07:48:20,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:20,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:20,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:20,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:48:20,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:20,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147161939] [2023-11-19 07:48:20,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147161939] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:20,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:20,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:48:20,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696050300] [2023-11-19 07:48:20,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:20,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:48:20,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:20,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:48:20,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:48:20,600 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 511 out of 1060 [2023-11-19 07:48:20,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 98 transitions, 212 flow. Second operand has 3 states, 3 states have (on average 514.6666666666666) internal successors, (1544), 3 states have internal predecessors, (1544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:20,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:48:20,604 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 511 of 1060 [2023-11-19 07:48:20,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:48:21,916 INFO L124 PetriNetUnfolderBase]: 3698/8424 cut-off events. [2023-11-19 07:48:21,916 INFO L125 PetriNetUnfolderBase]: For 520/520 co-relation queries the response was YES. [2023-11-19 07:48:21,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14494 conditions, 8424 events. 3698/8424 cut-off events. For 520/520 co-relation queries the response was YES. Maximal size of possible extension queue 288. Compared 71676 event pairs, 953 based on Foata normal form. 0/7330 useless extension candidates. Maximal degree in co-relation 14490. Up to 3780 conditions per place. [2023-11-19 07:48:22,095 INFO L140 encePairwiseOnDemand]: 1056/1060 looper letters, 63 selfloop transitions, 2 changer transitions 0/120 dead transitions. [2023-11-19 07:48:22,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 120 transitions, 399 flow [2023-11-19 07:48:22,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:48:22,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:48:22,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1596 transitions. [2023-11-19 07:48:22,102 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5018867924528302 [2023-11-19 07:48:22,103 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1596 transitions. [2023-11-19 07:48:22,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1596 transitions. [2023-11-19 07:48:22,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:48:22,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1596 transitions. [2023-11-19 07:48:22,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 532.0) internal successors, (1596), 3 states have internal predecessors, (1596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:22,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1060.0) internal successors, (4240), 4 states have internal predecessors, (4240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:22,121 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1060.0) internal successors, (4240), 4 states have internal predecessors, (4240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:22,122 INFO L175 Difference]: Start difference. First operand has 99 places, 98 transitions, 212 flow. Second operand 3 states and 1596 transitions. [2023-11-19 07:48:22,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 120 transitions, 399 flow [2023-11-19 07:48:22,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 120 transitions, 399 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:48:22,126 INFO L231 Difference]: Finished difference. Result has 100 places, 98 transitions, 222 flow [2023-11-19 07:48:22,127 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1060, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=100, PETRI_TRANSITIONS=98} [2023-11-19 07:48:22,128 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -27 predicate places. [2023-11-19 07:48:22,128 INFO L495 AbstractCegarLoop]: Abstraction has has 100 places, 98 transitions, 222 flow [2023-11-19 07:48:22,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 514.6666666666666) internal successors, (1544), 3 states have internal predecessors, (1544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:22,130 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:48:22,130 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:22,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:48:22,130 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-19 07:48:22,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:22,131 INFO L85 PathProgramCache]: Analyzing trace with hash -92101910, now seen corresponding path program 1 times [2023-11-19 07:48:22,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:22,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333236825] [2023-11-19 07:48:22,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:22,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:22,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:22,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:48:22,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:22,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333236825] [2023-11-19 07:48:22,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333236825] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:22,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:22,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:48:22,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522403216] [2023-11-19 07:48:22,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:22,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:48:22,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:22,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:48:22,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:48:23,179 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 492 out of 1060 [2023-11-19 07:48:23,184 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 98 transitions, 222 flow. Second operand has 6 states, 6 states have (on average 494.5) internal successors, (2967), 6 states have internal predecessors, (2967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:23,184 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:48:23,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 492 of 1060 [2023-11-19 07:48:23,184 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:48:27,412 INFO L124 PetriNetUnfolderBase]: 18400/30721 cut-off events. [2023-11-19 07:48:27,412 INFO L125 PetriNetUnfolderBase]: For 3265/3265 co-relation queries the response was YES. [2023-11-19 07:48:27,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60478 conditions, 30721 events. 18400/30721 cut-off events. For 3265/3265 co-relation queries the response was YES. Maximal size of possible extension queue 652. Compared 230715 event pairs, 4999 based on Foata normal form. 0/26219 useless extension candidates. Maximal degree in co-relation 60473. Up to 12638 conditions per place. [2023-11-19 07:48:27,730 INFO L140 encePairwiseOnDemand]: 1050/1060 looper letters, 145 selfloop transitions, 21 changer transitions 0/214 dead transitions. [2023-11-19 07:48:27,731 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 214 transitions, 848 flow [2023-11-19 07:48:27,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:48:27,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:48:27,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3104 transitions. [2023-11-19 07:48:27,744 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4880503144654088 [2023-11-19 07:48:27,745 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3104 transitions. [2023-11-19 07:48:27,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3104 transitions. [2023-11-19 07:48:27,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:48:27,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3104 transitions. [2023-11-19 07:48:27,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 517.3333333333334) internal successors, (3104), 6 states have internal predecessors, (3104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:27,778 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1060.0) internal successors, (7420), 7 states have internal predecessors, (7420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:27,782 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1060.0) internal successors, (7420), 7 states have internal predecessors, (7420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:27,782 INFO L175 Difference]: Start difference. First operand has 100 places, 98 transitions, 222 flow. Second operand 6 states and 3104 transitions. [2023-11-19 07:48:27,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 214 transitions, 848 flow [2023-11-19 07:48:27,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 214 transitions, 848 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:48:27,793 INFO L231 Difference]: Finished difference. Result has 110 places, 118 transitions, 364 flow [2023-11-19 07:48:27,793 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1060, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=364, PETRI_PLACES=110, PETRI_TRANSITIONS=118} [2023-11-19 07:48:27,796 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -17 predicate places. [2023-11-19 07:48:27,796 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 118 transitions, 364 flow [2023-11-19 07:48:27,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 494.5) internal successors, (2967), 6 states have internal predecessors, (2967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:27,798 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:48:27,799 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:27,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:48:27,799 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-19 07:48:27,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:27,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1929258759, now seen corresponding path program 1 times [2023-11-19 07:48:27,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:27,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719359732] [2023-11-19 07:48:27,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:27,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:27,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:48:27,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:27,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719359732] [2023-11-19 07:48:27,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719359732] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:27,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:27,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:48:27,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106034877] [2023-11-19 07:48:27,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:27,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:48:27,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:27,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:48:27,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:48:28,242 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 494 out of 1060 [2023-11-19 07:48:28,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 118 transitions, 364 flow. Second operand has 5 states, 5 states have (on average 495.6) internal successors, (2478), 5 states have internal predecessors, (2478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:28,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:48:28,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 494 of 1060 [2023-11-19 07:48:28,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:48:31,804 INFO L124 PetriNetUnfolderBase]: 10098/25954 cut-off events. [2023-11-19 07:48:31,805 INFO L125 PetriNetUnfolderBase]: For 2699/2819 co-relation queries the response was YES. [2023-11-19 07:48:31,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47311 conditions, 25954 events. 10098/25954 cut-off events. For 2699/2819 co-relation queries the response was YES. Maximal size of possible extension queue 625. Compared 272713 event pairs, 4930 based on Foata normal form. 0/23107 useless extension candidates. Maximal degree in co-relation 47301. Up to 8269 conditions per place. [2023-11-19 07:48:32,079 INFO L140 encePairwiseOnDemand]: 1050/1060 looper letters, 89 selfloop transitions, 12 changer transitions 0/179 dead transitions. [2023-11-19 07:48:32,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 179 transitions, 715 flow [2023-11-19 07:48:32,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:48:32,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:48:32,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3059 transitions. [2023-11-19 07:48:32,095 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4809748427672956 [2023-11-19 07:48:32,095 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3059 transitions. [2023-11-19 07:48:32,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3059 transitions. [2023-11-19 07:48:32,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:48:32,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3059 transitions. [2023-11-19 07:48:32,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 509.8333333333333) internal successors, (3059), 6 states have internal predecessors, (3059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:32,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1060.0) internal successors, (7420), 7 states have internal predecessors, (7420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:32,147 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1060.0) internal successors, (7420), 7 states have internal predecessors, (7420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:32,147 INFO L175 Difference]: Start difference. First operand has 110 places, 118 transitions, 364 flow. Second operand 6 states and 3059 transitions. [2023-11-19 07:48:32,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 179 transitions, 715 flow [2023-11-19 07:48:32,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 179 transitions, 715 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:48:32,252 INFO L231 Difference]: Finished difference. Result has 118 places, 128 transitions, 439 flow [2023-11-19 07:48:32,253 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1060, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=439, PETRI_PLACES=118, PETRI_TRANSITIONS=128} [2023-11-19 07:48:32,256 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -9 predicate places. [2023-11-19 07:48:32,260 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 128 transitions, 439 flow [2023-11-19 07:48:32,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 495.6) internal successors, (2478), 5 states have internal predecessors, (2478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:32,262 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:48:32,262 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:32,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:48:32,263 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-19 07:48:32,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:32,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1108891965, now seen corresponding path program 1 times [2023-11-19 07:48:32,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:32,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541949997] [2023-11-19 07:48:32,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:32,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:32,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:32,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:48:32,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:32,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541949997] [2023-11-19 07:48:32,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541949997] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:32,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:32,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:48:32,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655096230] [2023-11-19 07:48:32,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:32,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:48:32,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:32,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:48:32,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:48:32,743 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 494 out of 1060 [2023-11-19 07:48:32,746 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 128 transitions, 439 flow. Second operand has 5 states, 5 states have (on average 496.0) internal successors, (2480), 5 states have internal predecessors, (2480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:32,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:48:32,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 494 of 1060 [2023-11-19 07:48:32,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:48:35,930 INFO L124 PetriNetUnfolderBase]: 8169/20993 cut-off events. [2023-11-19 07:48:35,930 INFO L125 PetriNetUnfolderBase]: For 4360/4453 co-relation queries the response was YES. [2023-11-19 07:48:36,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40522 conditions, 20993 events. 8169/20993 cut-off events. For 4360/4453 co-relation queries the response was YES. Maximal size of possible extension queue 515. Compared 212487 event pairs, 4742 based on Foata normal form. 0/18765 useless extension candidates. Maximal degree in co-relation 40508. Up to 8269 conditions per place. [2023-11-19 07:48:36,104 INFO L140 encePairwiseOnDemand]: 1050/1060 looper letters, 81 selfloop transitions, 12 changer transitions 0/171 dead transitions. [2023-11-19 07:48:36,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 171 transitions, 740 flow [2023-11-19 07:48:36,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:48:36,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:48:36,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3053 transitions. [2023-11-19 07:48:36,116 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4800314465408805 [2023-11-19 07:48:36,117 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3053 transitions. [2023-11-19 07:48:36,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3053 transitions. [2023-11-19 07:48:36,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:48:36,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3053 transitions. [2023-11-19 07:48:36,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 508.8333333333333) internal successors, (3053), 6 states have internal predecessors, (3053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:36,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1060.0) internal successors, (7420), 7 states have internal predecessors, (7420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:36,141 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1060.0) internal successors, (7420), 7 states have internal predecessors, (7420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:36,141 INFO L175 Difference]: Start difference. First operand has 118 places, 128 transitions, 439 flow. Second operand 6 states and 3053 transitions. [2023-11-19 07:48:36,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 171 transitions, 740 flow [2023-11-19 07:48:36,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 171 transitions, 740 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:48:36,174 INFO L231 Difference]: Finished difference. Result has 125 places, 130 transitions, 479 flow [2023-11-19 07:48:36,175 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1060, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=479, PETRI_PLACES=125, PETRI_TRANSITIONS=130} [2023-11-19 07:48:36,175 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, -2 predicate places. [2023-11-19 07:48:36,175 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 130 transitions, 479 flow [2023-11-19 07:48:36,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 496.0) internal successors, (2480), 5 states have internal predecessors, (2480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:36,176 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:48:36,177 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:36,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:48:36,177 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-19 07:48:36,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:36,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1162852759, now seen corresponding path program 1 times [2023-11-19 07:48:36,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:36,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703398188] [2023-11-19 07:48:36,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:36,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:36,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:36,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:48:36,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:36,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703398188] [2023-11-19 07:48:36,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703398188] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:36,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:36,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:48:36,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830348380] [2023-11-19 07:48:36,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:36,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:48:36,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:36,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:48:36,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:48:36,645 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 494 out of 1060 [2023-11-19 07:48:36,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 130 transitions, 479 flow. Second operand has 5 states, 5 states have (on average 496.6) internal successors, (2483), 5 states have internal predecessors, (2483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:36,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:48:36,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 494 of 1060 [2023-11-19 07:48:36,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:48:38,910 INFO L124 PetriNetUnfolderBase]: 6716/16851 cut-off events. [2023-11-19 07:48:38,911 INFO L125 PetriNetUnfolderBase]: For 4048/4123 co-relation queries the response was YES. [2023-11-19 07:48:39,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34233 conditions, 16851 events. 6716/16851 cut-off events. For 4048/4123 co-relation queries the response was YES. Maximal size of possible extension queue 399. Compared 160535 event pairs, 4011 based on Foata normal form. 0/14867 useless extension candidates. Maximal degree in co-relation 34216. Up to 8269 conditions per place. [2023-11-19 07:48:39,095 INFO L140 encePairwiseOnDemand]: 1050/1060 looper letters, 63 selfloop transitions, 12 changer transitions 0/153 dead transitions. [2023-11-19 07:48:39,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 153 transitions, 702 flow [2023-11-19 07:48:39,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:48:39,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:48:39,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3037 transitions. [2023-11-19 07:48:39,119 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47751572327044023 [2023-11-19 07:48:39,119 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3037 transitions. [2023-11-19 07:48:39,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3037 transitions. [2023-11-19 07:48:39,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:48:39,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3037 transitions. [2023-11-19 07:48:39,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 506.1666666666667) internal successors, (3037), 6 states have internal predecessors, (3037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:39,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1060.0) internal successors, (7420), 7 states have internal predecessors, (7420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:39,157 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1060.0) internal successors, (7420), 7 states have internal predecessors, (7420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:39,158 INFO L175 Difference]: Start difference. First operand has 125 places, 130 transitions, 479 flow. Second operand 6 states and 3037 transitions. [2023-11-19 07:48:39,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 153 transitions, 702 flow [2023-11-19 07:48:39,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 153 transitions, 684 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 07:48:39,191 INFO L231 Difference]: Finished difference. Result has 129 places, 132 transitions, 501 flow [2023-11-19 07:48:39,192 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1060, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=501, PETRI_PLACES=129, PETRI_TRANSITIONS=132} [2023-11-19 07:48:39,196 INFO L281 CegarLoopForPetriNet]: 127 programPoint places, 2 predicate places. [2023-11-19 07:48:39,196 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 132 transitions, 501 flow [2023-11-19 07:48:39,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 496.6) internal successors, (2483), 5 states have internal predecessors, (2483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:39,198 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:48:39,198 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:39,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:48:39,199 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2023-11-19 07:48:39,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:39,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1812618445, now seen corresponding path program 1 times [2023-11-19 07:48:39,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:39,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237849761] [2023-11-19 07:48:39,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:39,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:39,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:39,747 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:48:39,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:39,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237849761] [2023-11-19 07:48:39,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237849761] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:39,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:39,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:48:39,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398072650] [2023-11-19 07:48:39,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:39,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:48:39,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:39,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:48:39,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:48:40,550 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 491 out of 1060 [2023-11-19 07:48:40,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 132 transitions, 501 flow. Second operand has 6 states, 6 states have (on average 493.6666666666667) internal successors, (2962), 6 states have internal predecessors, (2962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:40,554 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:48:40,554 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 491 of 1060 [2023-11-19 07:48:40,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand