./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8113b7b9-a755-4009-842d-5ed6c6a50c30/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8113b7b9-a755-4009-842d-5ed6c6a50c30/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8113b7b9-a755-4009-842d-5ed6c6a50c30/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8113b7b9-a755-4009-842d-5ed6c6a50c30/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8113b7b9-a755-4009-842d-5ed6c6a50c30/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8113b7b9-a755-4009-842d-5ed6c6a50c30/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c9008ebcceff34245d74f1892a84a552f8268a9318e8a2970f14b3ec6b594daf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:21:12,967 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:21:13,044 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8113b7b9-a755-4009-842d-5ed6c6a50c30/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:21:13,050 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:21:13,050 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:21:13,089 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:21:13,090 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:21:13,090 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:21:13,091 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:21:13,092 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:21:13,093 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:21:13,094 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:21:13,094 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:21:13,095 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:21:13,099 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:21:13,100 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:21:13,100 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:21:13,100 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:21:13,101 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:21:13,101 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:21:13,102 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:21:13,102 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:21:13,103 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:21:13,103 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:21:13,103 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:21:13,104 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:21:13,104 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:21:13,105 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:21:13,105 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:21:13,106 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:21:13,107 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:21:13,107 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:21:13,108 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:21:13,108 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:21:13,108 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:21:13,108 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:21:13,109 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:21:13,109 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:21:13,109 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:21:13,109 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:21:13,110 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:21:13,110 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_8113b7b9-a755-4009-842d-5ed6c6a50c30/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8113b7b9-a755-4009-842d-5ed6c6a50c30/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9008ebcceff34245d74f1892a84a552f8268a9318e8a2970f14b3ec6b594daf [2023-11-21 22:21:13,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:21:13,473 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:21:13,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:21:13,477 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:21:13,478 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:21:13,479 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8113b7b9-a755-4009-842d-5ed6c6a50c30/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2023-11-21 22:21:16,611 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:21:16,827 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:21:16,827 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8113b7b9-a755-4009-842d-5ed6c6a50c30/sv-benchmarks/c/weaver/chl-node-trans.wvr.c [2023-11-21 22:21:16,836 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8113b7b9-a755-4009-842d-5ed6c6a50c30/bin/uautomizer-verify-bycVGegfSx/data/0326256ef/65c3ebeed29e46898efca17c8527c20a/FLAG0bc354d66 [2023-11-21 22:21:16,849 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8113b7b9-a755-4009-842d-5ed6c6a50c30/bin/uautomizer-verify-bycVGegfSx/data/0326256ef/65c3ebeed29e46898efca17c8527c20a [2023-11-21 22:21:16,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:21:16,853 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:21:16,855 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:21:16,855 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:21:16,861 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:21:16,862 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:21:16" (1/1) ... [2023-11-21 22:21:16,868 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f675f7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:16, skipping insertion in model container [2023-11-21 22:21:16,869 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:21:16" (1/1) ... [2023-11-21 22:21:16,902 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:21:17,224 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:21:17,235 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:21:17,294 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:21:17,313 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:21:17,313 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:17 WrapperNode [2023-11-21 22:21:17,313 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:21:17,315 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:21:17,316 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:21:17,316 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:21:17,326 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:17" (1/1) ... [2023-11-21 22:21:17,354 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:17" (1/1) ... [2023-11-21 22:21:17,443 INFO L138 Inliner]: procedures = 27, calls = 67, calls flagged for inlining = 23, calls inlined = 35, statements flattened = 823 [2023-11-21 22:21:17,447 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:21:17,448 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:21:17,448 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:21:17,448 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:21:17,457 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:17" (1/1) ... [2023-11-21 22:21:17,457 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:17" (1/1) ... [2023-11-21 22:21:17,472 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:17" (1/1) ... [2023-11-21 22:21:17,473 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:17" (1/1) ... [2023-11-21 22:21:17,511 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:17" (1/1) ... [2023-11-21 22:21:17,533 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:17" (1/1) ... [2023-11-21 22:21:17,538 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:17" (1/1) ... [2023-11-21 22:21:17,542 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:17" (1/1) ... [2023-11-21 22:21:17,564 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:21:17,565 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:21:17,565 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:21:17,565 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:21:17,566 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:17" (1/1) ... [2023-11-21 22:21:17,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:21:17,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8113b7b9-a755-4009-842d-5ed6c6a50c30/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:21:17,616 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8113b7b9-a755-4009-842d-5ed6c6a50c30/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:21:17,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8113b7b9-a755-4009-842d-5ed6c6a50c30/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:21:17,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:21:17,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:21:17,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:21:17,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:21:17,662 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-21 22:21:17,662 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-21 22:21:17,663 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-21 22:21:17,663 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-21 22:21:17,663 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-21 22:21:17,663 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-21 22:21:17,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:21:17,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:21:17,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:21:17,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:21:17,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:21:17,666 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 22:21:17,862 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:21:17,865 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:21:19,126 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:21:19,162 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:21:19,163 INFO L308 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-21 22:21:19,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:21:19 BoogieIcfgContainer [2023-11-21 22:21:19,165 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:21:19,168 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:21:19,168 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:21:19,172 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:21:19,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:21:16" (1/3) ... [2023-11-21 22:21:19,173 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b5aed79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:21:19, skipping insertion in model container [2023-11-21 22:21:19,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:17" (2/3) ... [2023-11-21 22:21:19,174 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b5aed79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:21:19, skipping insertion in model container [2023-11-21 22:21:19,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:21:19" (3/3) ... [2023-11-21 22:21:19,175 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-trans.wvr.c [2023-11-21 22:21:19,185 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:21:19,196 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:21:19,196 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 117 error locations. [2023-11-21 22:21:19,196 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:21:19,407 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-21 22:21:19,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1037 places, 1075 transitions, 2171 flow [2023-11-21 22:21:20,196 INFO L124 PetriNetUnfolderBase]: 48/1072 cut-off events. [2023-11-21 22:21:20,196 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-21 22:21:20,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1085 conditions, 1072 events. 48/1072 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2218 event pairs, 0 based on Foata normal form. 0/907 useless extension candidates. Maximal degree in co-relation 852. Up to 2 conditions per place. [2023-11-21 22:21:20,219 INFO L82 GeneralOperation]: Start removeDead. Operand has 1037 places, 1075 transitions, 2171 flow [2023-11-21 22:21:20,245 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1009 places, 1045 transitions, 2108 flow [2023-11-21 22:21:20,255 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:21:20,262 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;@6450eed4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:21:20,262 INFO L358 AbstractCegarLoop]: Starting to check reachability of 195 error locations. [2023-11-21 22:21:20,267 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:21:20,268 INFO L124 PetriNetUnfolderBase]: 0/34 cut-off events. [2023-11-21 22:21:20,268 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:21:20,268 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:20,269 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:20,269 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-21 22:21:20,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:20,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1937191034, now seen corresponding path program 1 times [2023-11-21 22:21:20,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:20,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958389328] [2023-11-21 22:21:20,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:20,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:20,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:20,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:20,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:20,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958389328] [2023-11-21 22:21:20,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958389328] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:20,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:20,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:21:20,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677207081] [2023-11-21 22:21:20,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:20,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:20,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:20,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:20,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:20,698 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1022 out of 1075 [2023-11-21 22:21:20,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1009 places, 1045 transitions, 2108 flow. Second operand has 3 states, 3 states have (on average 1023.3333333333334) internal successors, (3070), 3 states have internal predecessors, (3070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:20,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:20,711 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1022 of 1075 [2023-11-21 22:21:20,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:21:21,811 INFO L124 PetriNetUnfolderBase]: 54/1826 cut-off events. [2023-11-21 22:21:21,811 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-11-21 22:21:21,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1921 conditions, 1826 events. 54/1826 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 8250 event pairs, 21 based on Foata normal form. 61/1577 useless extension candidates. Maximal degree in co-relation 1278. Up to 62 conditions per place. [2023-11-21 22:21:21,882 INFO L140 encePairwiseOnDemand]: 1044/1075 looper letters, 19 selfloop transitions, 2 changer transitions 16/1016 dead transitions. [2023-11-21 22:21:21,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1010 places, 1016 transitions, 2092 flow [2023-11-21 22:21:21,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:21,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:21:21,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3116 transitions. [2023-11-21 22:21:21,914 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9662015503875969 [2023-11-21 22:21:21,915 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3116 transitions. [2023-11-21 22:21:21,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3116 transitions. [2023-11-21 22:21:21,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:21:21,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3116 transitions. [2023-11-21 22:21:21,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1038.6666666666667) internal successors, (3116), 3 states have internal predecessors, (3116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:21,960 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:21,964 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:22,003 INFO L175 Difference]: Start difference. First operand has 1009 places, 1045 transitions, 2108 flow. Second operand 3 states and 3116 transitions. [2023-11-21 22:21:22,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1010 places, 1016 transitions, 2092 flow [2023-11-21 22:21:22,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1004 places, 1016 transitions, 2080 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-21 22:21:22,039 INFO L231 Difference]: Finished difference. Result has 1004 places, 1000 transitions, 2010 flow [2023-11-21 22:21:22,043 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1075, PETRI_DIFFERENCE_MINUEND_FLOW=2038, PETRI_DIFFERENCE_MINUEND_PLACES=1002, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1016, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1014, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2010, PETRI_PLACES=1004, PETRI_TRANSITIONS=1000} [2023-11-21 22:21:22,047 INFO L281 CegarLoopForPetriNet]: 1009 programPoint places, -5 predicate places. [2023-11-21 22:21:22,048 INFO L495 AbstractCegarLoop]: Abstraction has has 1004 places, 1000 transitions, 2010 flow [2023-11-21 22:21:22,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1023.3333333333334) internal successors, (3070), 3 states have internal predecessors, (3070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:22,051 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:22,051 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:22,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:21:22,051 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-21 22:21:22,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:22,052 INFO L85 PathProgramCache]: Analyzing trace with hash 2015232919, now seen corresponding path program 1 times [2023-11-21 22:21:22,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:22,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339996035] [2023-11-21 22:21:22,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:22,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:22,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:22,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:22,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:22,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339996035] [2023-11-21 22:21:22,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339996035] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:22,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:22,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:21:22,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626143509] [2023-11-21 22:21:22,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:22,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:22,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:22,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:22,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:22,172 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1008 out of 1075 [2023-11-21 22:21:22,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1004 places, 1000 transitions, 2010 flow. Second operand has 3 states, 3 states have (on average 1009.0) internal successors, (3027), 3 states have internal predecessors, (3027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:22,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:22,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1008 of 1075 [2023-11-21 22:21:22,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:21:23,586 INFO L124 PetriNetUnfolderBase]: 117/2693 cut-off events. [2023-11-21 22:21:23,586 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-21 22:21:23,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2860 conditions, 2693 events. 117/2693 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 15765 event pairs, 60 based on Foata normal form. 0/2257 useless extension candidates. Maximal degree in co-relation 2817. Up to 146 conditions per place. [2023-11-21 22:21:23,659 INFO L140 encePairwiseOnDemand]: 1064/1075 looper letters, 26 selfloop transitions, 1 changer transitions 0/990 dead transitions. [2023-11-21 22:21:23,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 980 places, 990 transitions, 2044 flow [2023-11-21 22:21:23,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:23,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:21:23,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3061 transitions. [2023-11-21 22:21:23,670 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9491472868217055 [2023-11-21 22:21:23,670 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3061 transitions. [2023-11-21 22:21:23,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3061 transitions. [2023-11-21 22:21:23,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:21:23,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3061 transitions. [2023-11-21 22:21:23,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1020.3333333333334) internal successors, (3061), 3 states have internal predecessors, (3061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:23,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:23,698 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:23,699 INFO L175 Difference]: Start difference. First operand has 1004 places, 1000 transitions, 2010 flow. Second operand 3 states and 3061 transitions. [2023-11-21 22:21:23,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 980 places, 990 transitions, 2044 flow [2023-11-21 22:21:23,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 978 places, 990 transitions, 2040 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:21:23,723 INFO L231 Difference]: Finished difference. Result has 978 places, 990 transitions, 1988 flow [2023-11-21 22:21:23,725 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1075, PETRI_DIFFERENCE_MINUEND_FLOW=1986, PETRI_DIFFERENCE_MINUEND_PLACES=976, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=990, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=989, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1988, PETRI_PLACES=978, PETRI_TRANSITIONS=990} [2023-11-21 22:21:23,726 INFO L281 CegarLoopForPetriNet]: 1009 programPoint places, -31 predicate places. [2023-11-21 22:21:23,726 INFO L495 AbstractCegarLoop]: Abstraction has has 978 places, 990 transitions, 1988 flow [2023-11-21 22:21:23,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1009.0) internal successors, (3027), 3 states have internal predecessors, (3027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:23,729 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:23,730 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:23,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:21:23,730 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-21 22:21:23,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:23,731 INFO L85 PathProgramCache]: Analyzing trace with hash 170611477, now seen corresponding path program 1 times [2023-11-21 22:21:23,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:23,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25591406] [2023-11-21 22:21:23,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:23,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:23,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:23,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:23,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:23,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25591406] [2023-11-21 22:21:23,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25591406] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:23,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:23,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:21:23,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084935299] [2023-11-21 22:21:23,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:23,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:23,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:23,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:23,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:23,871 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1022 out of 1075 [2023-11-21 22:21:23,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 978 places, 990 transitions, 1988 flow. Second operand has 3 states, 3 states have (on average 1023.3333333333334) internal successors, (3070), 3 states have internal predecessors, (3070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:23,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:23,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1022 of 1075 [2023-11-21 22:21:23,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:21:24,910 INFO L124 PetriNetUnfolderBase]: 90/2708 cut-off events. [2023-11-21 22:21:24,910 INFO L125 PetriNetUnfolderBase]: For 6/10 co-relation queries the response was YES. [2023-11-21 22:21:24,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2823 conditions, 2708 events. 90/2708 cut-off events. For 6/10 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 16776 event pairs, 39 based on Foata normal form. 0/2244 useless extension candidates. Maximal degree in co-relation 2780. Up to 89 conditions per place. [2023-11-21 22:21:24,967 INFO L140 encePairwiseOnDemand]: 1072/1075 looper letters, 19 selfloop transitions, 2 changer transitions 0/989 dead transitions. [2023-11-21 22:21:24,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 979 places, 989 transitions, 2028 flow [2023-11-21 22:21:24,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:24,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:21:24,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3088 transitions. [2023-11-21 22:21:24,977 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9575193798449613 [2023-11-21 22:21:24,978 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3088 transitions. [2023-11-21 22:21:24,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3088 transitions. [2023-11-21 22:21:24,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:21:24,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3088 transitions. [2023-11-21 22:21:24,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1029.3333333333333) internal successors, (3088), 3 states have internal predecessors, (3088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:25,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:25,005 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:25,006 INFO L175 Difference]: Start difference. First operand has 978 places, 990 transitions, 1988 flow. Second operand 3 states and 3088 transitions. [2023-11-21 22:21:25,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 979 places, 989 transitions, 2028 flow [2023-11-21 22:21:25,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 978 places, 989 transitions, 2027 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:21:25,028 INFO L231 Difference]: Finished difference. Result has 978 places, 989 transitions, 1989 flow [2023-11-21 22:21:25,030 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1075, PETRI_DIFFERENCE_MINUEND_FLOW=1985, PETRI_DIFFERENCE_MINUEND_PLACES=976, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=989, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=987, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1989, PETRI_PLACES=978, PETRI_TRANSITIONS=989} [2023-11-21 22:21:25,031 INFO L281 CegarLoopForPetriNet]: 1009 programPoint places, -31 predicate places. [2023-11-21 22:21:25,031 INFO L495 AbstractCegarLoop]: Abstraction has has 978 places, 989 transitions, 1989 flow [2023-11-21 22:21:25,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1023.3333333333334) internal successors, (3070), 3 states have internal predecessors, (3070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:25,034 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:25,034 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:25,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:21:25,035 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-21 22:21:25,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:25,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1840965949, now seen corresponding path program 1 times [2023-11-21 22:21:25,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:25,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685615629] [2023-11-21 22:21:25,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:25,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:25,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:25,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:25,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:25,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685615629] [2023-11-21 22:21:25,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685615629] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:25,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:25,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:21:25,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204895133] [2023-11-21 22:21:25,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:25,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:25,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:25,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:25,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:25,247 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1008 out of 1075 [2023-11-21 22:21:25,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 978 places, 989 transitions, 1989 flow. Second operand has 3 states, 3 states have (on average 1009.0) internal successors, (3027), 3 states have internal predecessors, (3027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:25,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:25,254 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1008 of 1075 [2023-11-21 22:21:25,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:21:27,071 INFO L124 PetriNetUnfolderBase]: 225/4022 cut-off events. [2023-11-21 22:21:27,071 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-21 22:21:27,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4350 conditions, 4022 events. 225/4022 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 30553 event pairs, 132 based on Foata normal form. 0/3382 useless extension candidates. Maximal degree in co-relation 4308. Up to 264 conditions per place. [2023-11-21 22:21:27,145 INFO L140 encePairwiseOnDemand]: 1064/1075 looper letters, 26 selfloop transitions, 1 changer transitions 0/979 dead transitions. [2023-11-21 22:21:27,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 970 places, 979 transitions, 2023 flow [2023-11-21 22:21:27,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:27,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:21:27,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3061 transitions. [2023-11-21 22:21:27,156 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9491472868217055 [2023-11-21 22:21:27,156 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3061 transitions. [2023-11-21 22:21:27,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3061 transitions. [2023-11-21 22:21:27,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:21:27,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3061 transitions. [2023-11-21 22:21:27,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1020.3333333333334) internal successors, (3061), 3 states have internal predecessors, (3061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:27,191 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:27,193 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:27,193 INFO L175 Difference]: Start difference. First operand has 978 places, 989 transitions, 1989 flow. Second operand 3 states and 3061 transitions. [2023-11-21 22:21:27,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 970 places, 979 transitions, 2023 flow [2023-11-21 22:21:27,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 968 places, 979 transitions, 2019 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:21:27,224 INFO L231 Difference]: Finished difference. Result has 968 places, 979 transitions, 1967 flow [2023-11-21 22:21:27,226 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1075, PETRI_DIFFERENCE_MINUEND_FLOW=1965, PETRI_DIFFERENCE_MINUEND_PLACES=966, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=979, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=978, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1967, PETRI_PLACES=968, PETRI_TRANSITIONS=979} [2023-11-21 22:21:27,228 INFO L281 CegarLoopForPetriNet]: 1009 programPoint places, -41 predicate places. [2023-11-21 22:21:27,228 INFO L495 AbstractCegarLoop]: Abstraction has has 968 places, 979 transitions, 1967 flow [2023-11-21 22:21:27,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1009.0) internal successors, (3027), 3 states have internal predecessors, (3027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:27,230 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:27,230 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:27,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:21:27,231 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-21 22:21:27,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:27,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1648462636, now seen corresponding path program 1 times [2023-11-21 22:21:27,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:27,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604266679] [2023-11-21 22:21:27,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:27,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:27,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:27,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:27,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604266679] [2023-11-21 22:21:27,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604266679] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:27,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:27,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:21:27,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562992486] [2023-11-21 22:21:27,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:27,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:27,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:27,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:27,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:27,421 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1022 out of 1075 [2023-11-21 22:21:27,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 968 places, 979 transitions, 1967 flow. Second operand has 3 states, 3 states have (on average 1023.3333333333334) internal successors, (3070), 3 states have internal predecessors, (3070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:27,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:27,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1022 of 1075 [2023-11-21 22:21:27,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:21:28,224 INFO L124 PetriNetUnfolderBase]: 75/1947 cut-off events. [2023-11-21 22:21:28,225 INFO L125 PetriNetUnfolderBase]: For 21/48 co-relation queries the response was YES. [2023-11-21 22:21:28,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2048 conditions, 1947 events. 75/1947 cut-off events. For 21/48 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 9258 event pairs, 39 based on Foata normal form. 0/1659 useless extension candidates. Maximal degree in co-relation 2005. Up to 89 conditions per place. [2023-11-21 22:21:28,275 INFO L140 encePairwiseOnDemand]: 1072/1075 looper letters, 19 selfloop transitions, 2 changer transitions 0/978 dead transitions. [2023-11-21 22:21:28,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 969 places, 978 transitions, 2007 flow [2023-11-21 22:21:28,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:28,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:21:28,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3088 transitions. [2023-11-21 22:21:28,292 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9575193798449613 [2023-11-21 22:21:28,292 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3088 transitions. [2023-11-21 22:21:28,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3088 transitions. [2023-11-21 22:21:28,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:21:28,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3088 transitions. [2023-11-21 22:21:28,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1029.3333333333333) internal successors, (3088), 3 states have internal predecessors, (3088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:28,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:28,314 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:28,315 INFO L175 Difference]: Start difference. First operand has 968 places, 979 transitions, 1967 flow. Second operand 3 states and 3088 transitions. [2023-11-21 22:21:28,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 969 places, 978 transitions, 2007 flow [2023-11-21 22:21:28,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 968 places, 978 transitions, 2006 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:21:28,337 INFO L231 Difference]: Finished difference. Result has 968 places, 978 transitions, 1968 flow [2023-11-21 22:21:28,339 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1075, PETRI_DIFFERENCE_MINUEND_FLOW=1964, PETRI_DIFFERENCE_MINUEND_PLACES=966, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=978, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=976, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1968, PETRI_PLACES=968, PETRI_TRANSITIONS=978} [2023-11-21 22:21:28,342 INFO L281 CegarLoopForPetriNet]: 1009 programPoint places, -41 predicate places. [2023-11-21 22:21:28,342 INFO L495 AbstractCegarLoop]: Abstraction has has 968 places, 978 transitions, 1968 flow [2023-11-21 22:21:28,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1023.3333333333334) internal successors, (3070), 3 states have internal predecessors, (3070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:28,344 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:28,344 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:28,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:21:28,345 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-21 22:21:28,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:28,347 INFO L85 PathProgramCache]: Analyzing trace with hash 4388993, now seen corresponding path program 1 times [2023-11-21 22:21:28,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:28,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11147661] [2023-11-21 22:21:28,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:28,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:28,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:28,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:28,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11147661] [2023-11-21 22:21:28,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11147661] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:28,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:28,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:21:28,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759698907] [2023-11-21 22:21:28,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:28,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:28,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:28,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:28,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:28,506 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1008 out of 1075 [2023-11-21 22:21:28,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 968 places, 978 transitions, 1968 flow. Second operand has 3 states, 3 states have (on average 1009.0) internal successors, (3027), 3 states have internal predecessors, (3027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:28,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:28,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1008 of 1075 [2023-11-21 22:21:28,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:21:30,239 INFO L124 PetriNetUnfolderBase]: 227/3739 cut-off events. [2023-11-21 22:21:30,239 INFO L125 PetriNetUnfolderBase]: For 65/94 co-relation queries the response was YES. [2023-11-21 22:21:30,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4030 conditions, 3739 events. 227/3739 cut-off events. For 65/94 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 27044 event pairs, 132 based on Foata normal form. 0/3186 useless extension candidates. Maximal degree in co-relation 3988. Up to 274 conditions per place. [2023-11-21 22:21:30,319 INFO L140 encePairwiseOnDemand]: 1064/1075 looper letters, 26 selfloop transitions, 1 changer transitions 0/968 dead transitions. [2023-11-21 22:21:30,319 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 960 places, 968 transitions, 2002 flow [2023-11-21 22:21:30,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:30,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:21:30,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3061 transitions. [2023-11-21 22:21:30,332 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9491472868217055 [2023-11-21 22:21:30,332 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3061 transitions. [2023-11-21 22:21:30,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3061 transitions. [2023-11-21 22:21:30,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:21:30,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3061 transitions. [2023-11-21 22:21:30,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1020.3333333333334) internal successors, (3061), 3 states have internal predecessors, (3061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:30,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:30,442 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:30,442 INFO L175 Difference]: Start difference. First operand has 968 places, 978 transitions, 1968 flow. Second operand 3 states and 3061 transitions. [2023-11-21 22:21:30,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 960 places, 968 transitions, 2002 flow [2023-11-21 22:21:30,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 958 places, 968 transitions, 1998 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:21:30,464 INFO L231 Difference]: Finished difference. Result has 958 places, 968 transitions, 1946 flow [2023-11-21 22:21:30,466 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1075, PETRI_DIFFERENCE_MINUEND_FLOW=1944, PETRI_DIFFERENCE_MINUEND_PLACES=956, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=968, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=967, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1946, PETRI_PLACES=958, PETRI_TRANSITIONS=968} [2023-11-21 22:21:30,467 INFO L281 CegarLoopForPetriNet]: 1009 programPoint places, -51 predicate places. [2023-11-21 22:21:30,468 INFO L495 AbstractCegarLoop]: Abstraction has has 958 places, 968 transitions, 1946 flow [2023-11-21 22:21:30,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1009.0) internal successors, (3027), 3 states have internal predecessors, (3027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:30,469 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:30,469 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:30,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:21:30,470 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-21 22:21:30,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:30,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1778744425, now seen corresponding path program 1 times [2023-11-21 22:21:30,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:30,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830628277] [2023-11-21 22:21:30,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:30,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:30,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:30,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:30,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:30,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830628277] [2023-11-21 22:21:30,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830628277] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:30,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:30,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:21:30,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642900723] [2023-11-21 22:21:30,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:30,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:30,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:30,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:30,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:30,555 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1030 out of 1075 [2023-11-21 22:21:30,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 958 places, 968 transitions, 1946 flow. Second operand has 3 states, 3 states have (on average 1031.3333333333333) internal successors, (3094), 3 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:30,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:30,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1030 of 1075 [2023-11-21 22:21:30,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:21:30,970 INFO L124 PetriNetUnfolderBase]: 26/1275 cut-off events. [2023-11-21 22:21:30,971 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-21 22:21:30,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1303 conditions, 1275 events. 26/1275 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3433 event pairs, 2 based on Foata normal form. 0/1118 useless extension candidates. Maximal degree in co-relation 1260. Up to 16 conditions per place. [2023-11-21 22:21:30,999 INFO L140 encePairwiseOnDemand]: 1072/1075 looper letters, 11 selfloop transitions, 2 changer transitions 0/967 dead transitions. [2023-11-21 22:21:31,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 959 places, 967 transitions, 1970 flow [2023-11-21 22:21:31,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:31,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:21:31,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3104 transitions. [2023-11-21 22:21:31,011 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9624806201550388 [2023-11-21 22:21:31,012 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3104 transitions. [2023-11-21 22:21:31,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3104 transitions. [2023-11-21 22:21:31,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:21:31,015 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3104 transitions. [2023-11-21 22:21:31,023 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1034.6666666666667) internal successors, (3104), 3 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) [2023-11-21 22:21:31,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:31,032 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:31,032 INFO L175 Difference]: Start difference. First operand has 958 places, 968 transitions, 1946 flow. Second operand 3 states and 3104 transitions. [2023-11-21 22:21:31,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 959 places, 967 transitions, 1970 flow [2023-11-21 22:21:31,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 958 places, 967 transitions, 1969 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:21:31,055 INFO L231 Difference]: Finished difference. Result has 958 places, 967 transitions, 1947 flow [2023-11-21 22:21:31,059 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1075, PETRI_DIFFERENCE_MINUEND_FLOW=1943, PETRI_DIFFERENCE_MINUEND_PLACES=956, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=967, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=965, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1947, PETRI_PLACES=958, PETRI_TRANSITIONS=967} [2023-11-21 22:21:31,060 INFO L281 CegarLoopForPetriNet]: 1009 programPoint places, -51 predicate places. [2023-11-21 22:21:31,060 INFO L495 AbstractCegarLoop]: Abstraction has has 958 places, 967 transitions, 1947 flow [2023-11-21 22:21:31,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1031.3333333333333) internal successors, (3094), 3 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:31,062 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:31,062 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:31,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 22:21:31,063 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-21 22:21:31,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:31,065 INFO L85 PathProgramCache]: Analyzing trace with hash 494279685, now seen corresponding path program 1 times [2023-11-21 22:21:31,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:31,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547638757] [2023-11-21 22:21:31,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:31,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:31,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:31,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:31,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:31,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547638757] [2023-11-21 22:21:31,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547638757] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:31,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:31,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:21:31,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468816157] [2023-11-21 22:21:31,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:31,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:31,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:31,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:31,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:31,201 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1029 out of 1075 [2023-11-21 22:21:31,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 958 places, 967 transitions, 1947 flow. Second operand has 3 states, 3 states have (on average 1030.3333333333333) internal successors, (3091), 3 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:31,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:31,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1029 of 1075 [2023-11-21 22:21:31,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:21:31,857 INFO L124 PetriNetUnfolderBase]: 42/1890 cut-off events. [2023-11-21 22:21:31,857 INFO L125 PetriNetUnfolderBase]: For 3/7 co-relation queries the response was YES. [2023-11-21 22:21:31,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1933 conditions, 1890 events. 42/1890 cut-off events. For 3/7 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 8647 event pairs, 6 based on Foata normal form. 0/1634 useless extension candidates. Maximal degree in co-relation 1890. Up to 25 conditions per place. [2023-11-21 22:21:31,893 INFO L140 encePairwiseOnDemand]: 1072/1075 looper letters, 12 selfloop transitions, 2 changer transitions 0/966 dead transitions. [2023-11-21 22:21:31,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 959 places, 966 transitions, 1973 flow [2023-11-21 22:21:31,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:31,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:21:31,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3102 transitions. [2023-11-21 22:21:31,904 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9618604651162791 [2023-11-21 22:21:31,904 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3102 transitions. [2023-11-21 22:21:31,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3102 transitions. [2023-11-21 22:21:31,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:21:31,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3102 transitions. [2023-11-21 22:21:31,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1034.0) internal successors, (3102), 3 states have internal predecessors, (3102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:31,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:31,925 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:31,925 INFO L175 Difference]: Start difference. First operand has 958 places, 967 transitions, 1947 flow. Second operand 3 states and 3102 transitions. [2023-11-21 22:21:31,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 959 places, 966 transitions, 1973 flow [2023-11-21 22:21:31,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 957 places, 966 transitions, 1969 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:21:31,951 INFO L231 Difference]: Finished difference. Result has 957 places, 966 transitions, 1945 flow [2023-11-21 22:21:31,953 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1075, PETRI_DIFFERENCE_MINUEND_FLOW=1941, PETRI_DIFFERENCE_MINUEND_PLACES=955, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=966, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=964, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1945, PETRI_PLACES=957, PETRI_TRANSITIONS=966} [2023-11-21 22:21:31,955 INFO L281 CegarLoopForPetriNet]: 1009 programPoint places, -52 predicate places. [2023-11-21 22:21:31,955 INFO L495 AbstractCegarLoop]: Abstraction has has 957 places, 966 transitions, 1945 flow [2023-11-21 22:21:31,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1030.3333333333333) internal successors, (3091), 3 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:31,957 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:31,957 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:31,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 22:21:31,957 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-21 22:21:31,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:31,958 INFO L85 PathProgramCache]: Analyzing trace with hash -713010154, now seen corresponding path program 1 times [2023-11-21 22:21:31,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:31,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353559465] [2023-11-21 22:21:31,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:31,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:31,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:32,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:32,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:32,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353559465] [2023-11-21 22:21:32,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353559465] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:32,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:32,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:21:32,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926296870] [2023-11-21 22:21:32,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:32,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:32,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:32,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:32,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:32,085 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1029 out of 1075 [2023-11-21 22:21:32,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 957 places, 966 transitions, 1945 flow. Second operand has 3 states, 3 states have (on average 1030.3333333333333) internal successors, (3091), 3 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:32,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:32,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1029 of 1075 [2023-11-21 22:21:32,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:21:32,741 INFO L124 PetriNetUnfolderBase]: 42/1889 cut-off events. [2023-11-21 22:21:32,741 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-21 22:21:32,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1932 conditions, 1889 events. 42/1889 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 8602 event pairs, 6 based on Foata normal form. 0/1634 useless extension candidates. Maximal degree in co-relation 1889. Up to 25 conditions per place. [2023-11-21 22:21:32,773 INFO L140 encePairwiseOnDemand]: 1072/1075 looper letters, 12 selfloop transitions, 2 changer transitions 0/965 dead transitions. [2023-11-21 22:21:32,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 958 places, 965 transitions, 1971 flow [2023-11-21 22:21:32,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:32,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:21:32,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3102 transitions. [2023-11-21 22:21:32,785 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9618604651162791 [2023-11-21 22:21:32,785 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3102 transitions. [2023-11-21 22:21:32,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3102 transitions. [2023-11-21 22:21:32,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:21:32,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3102 transitions. [2023-11-21 22:21:32,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1034.0) internal successors, (3102), 3 states have internal predecessors, (3102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:32,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:32,807 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:32,808 INFO L175 Difference]: Start difference. First operand has 957 places, 966 transitions, 1945 flow. Second operand 3 states and 3102 transitions. [2023-11-21 22:21:32,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 958 places, 965 transitions, 1971 flow [2023-11-21 22:21:32,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 956 places, 965 transitions, 1967 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:21:32,832 INFO L231 Difference]: Finished difference. Result has 956 places, 965 transitions, 1943 flow [2023-11-21 22:21:32,835 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1075, PETRI_DIFFERENCE_MINUEND_FLOW=1939, PETRI_DIFFERENCE_MINUEND_PLACES=954, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=965, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=963, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1943, PETRI_PLACES=956, PETRI_TRANSITIONS=965} [2023-11-21 22:21:32,835 INFO L281 CegarLoopForPetriNet]: 1009 programPoint places, -53 predicate places. [2023-11-21 22:21:32,836 INFO L495 AbstractCegarLoop]: Abstraction has has 956 places, 965 transitions, 1943 flow [2023-11-21 22:21:32,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1030.3333333333333) internal successors, (3091), 3 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:32,837 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:32,838 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:32,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 22:21:32,838 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-21 22:21:32,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:32,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1799466666, now seen corresponding path program 1 times [2023-11-21 22:21:32,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:32,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809492369] [2023-11-21 22:21:32,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:32,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:32,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:32,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:32,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809492369] [2023-11-21 22:21:32,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809492369] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:32,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:32,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:21:32,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280321357] [2023-11-21 22:21:32,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:32,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:32,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:32,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:32,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:32,923 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1030 out of 1075 [2023-11-21 22:21:32,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 956 places, 965 transitions, 1943 flow. Second operand has 3 states, 3 states have (on average 1031.3333333333333) internal successors, (3094), 3 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:32,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:32,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1030 of 1075 [2023-11-21 22:21:32,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:21:33,333 INFO L124 PetriNetUnfolderBase]: 23/1130 cut-off events. [2023-11-21 22:21:33,333 INFO L125 PetriNetUnfolderBase]: For 4/8 co-relation queries the response was YES. [2023-11-21 22:21:33,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1159 conditions, 1130 events. 23/1130 cut-off events. For 4/8 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2679 event pairs, 2 based on Foata normal form. 0/1000 useless extension candidates. Maximal degree in co-relation 1116. Up to 16 conditions per place. [2023-11-21 22:21:33,355 INFO L140 encePairwiseOnDemand]: 1072/1075 looper letters, 11 selfloop transitions, 2 changer transitions 0/964 dead transitions. [2023-11-21 22:21:33,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 957 places, 964 transitions, 1967 flow [2023-11-21 22:21:33,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:33,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:21:33,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3104 transitions. [2023-11-21 22:21:33,366 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9624806201550388 [2023-11-21 22:21:33,367 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3104 transitions. [2023-11-21 22:21:33,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3104 transitions. [2023-11-21 22:21:33,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:21:33,370 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3104 transitions. [2023-11-21 22:21:33,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1034.6666666666667) internal successors, (3104), 3 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) [2023-11-21 22:21:33,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:33,389 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:33,389 INFO L175 Difference]: Start difference. First operand has 956 places, 965 transitions, 1943 flow. Second operand 3 states and 3104 transitions. [2023-11-21 22:21:33,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 957 places, 964 transitions, 1967 flow [2023-11-21 22:21:33,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 955 places, 964 transitions, 1963 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:21:33,415 INFO L231 Difference]: Finished difference. Result has 955 places, 964 transitions, 1941 flow [2023-11-21 22:21:33,417 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1075, PETRI_DIFFERENCE_MINUEND_FLOW=1937, PETRI_DIFFERENCE_MINUEND_PLACES=953, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=964, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=962, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1941, PETRI_PLACES=955, PETRI_TRANSITIONS=964} [2023-11-21 22:21:33,418 INFO L281 CegarLoopForPetriNet]: 1009 programPoint places, -54 predicate places. [2023-11-21 22:21:33,419 INFO L495 AbstractCegarLoop]: Abstraction has has 955 places, 964 transitions, 1941 flow [2023-11-21 22:21:33,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1031.3333333333333) internal successors, (3094), 3 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:33,420 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:33,421 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:33,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 22:21:33,421 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-21 22:21:33,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:33,422 INFO L85 PathProgramCache]: Analyzing trace with hash 629850170, now seen corresponding path program 1 times [2023-11-21 22:21:33,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:33,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457481335] [2023-11-21 22:21:33,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:33,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:33,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:33,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:33,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457481335] [2023-11-21 22:21:33,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457481335] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:33,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:33,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:21:33,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656017161] [2023-11-21 22:21:33,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:33,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:33,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:33,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:33,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:33,519 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1029 out of 1075 [2023-11-21 22:21:33,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 955 places, 964 transitions, 1941 flow. Second operand has 3 states, 3 states have (on average 1030.3333333333333) internal successors, (3091), 3 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:33,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:33,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1029 of 1075 [2023-11-21 22:21:33,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:21:34,186 INFO L124 PetriNetUnfolderBase]: 33/1461 cut-off events. [2023-11-21 22:21:34,187 INFO L125 PetriNetUnfolderBase]: For 6/30 co-relation queries the response was YES. [2023-11-21 22:21:34,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1501 conditions, 1461 events. 33/1461 cut-off events. For 6/30 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 5292 event pairs, 6 based on Foata normal form. 0/1277 useless extension candidates. Maximal degree in co-relation 1458. Up to 25 conditions per place. [2023-11-21 22:21:34,216 INFO L140 encePairwiseOnDemand]: 1072/1075 looper letters, 12 selfloop transitions, 2 changer transitions 0/963 dead transitions. [2023-11-21 22:21:34,217 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 956 places, 963 transitions, 1967 flow [2023-11-21 22:21:34,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:34,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:21:34,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3102 transitions. [2023-11-21 22:21:34,226 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9618604651162791 [2023-11-21 22:21:34,226 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3102 transitions. [2023-11-21 22:21:34,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3102 transitions. [2023-11-21 22:21:34,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:21:34,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3102 transitions. [2023-11-21 22:21:34,235 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1034.0) internal successors, (3102), 3 states have internal predecessors, (3102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:34,244 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:34,245 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:34,246 INFO L175 Difference]: Start difference. First operand has 955 places, 964 transitions, 1941 flow. Second operand 3 states and 3102 transitions. [2023-11-21 22:21:34,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 956 places, 963 transitions, 1967 flow [2023-11-21 22:21:34,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 954 places, 963 transitions, 1963 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:21:34,273 INFO L231 Difference]: Finished difference. Result has 954 places, 963 transitions, 1939 flow [2023-11-21 22:21:34,275 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1075, PETRI_DIFFERENCE_MINUEND_FLOW=1935, PETRI_DIFFERENCE_MINUEND_PLACES=952, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=963, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=961, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1939, PETRI_PLACES=954, PETRI_TRANSITIONS=963} [2023-11-21 22:21:34,276 INFO L281 CegarLoopForPetriNet]: 1009 programPoint places, -55 predicate places. [2023-11-21 22:21:34,276 INFO L495 AbstractCegarLoop]: Abstraction has has 954 places, 963 transitions, 1939 flow [2023-11-21 22:21:34,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1030.3333333333333) internal successors, (3091), 3 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:34,277 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:34,278 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:34,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-21 22:21:34,278 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-21 22:21:34,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:34,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1984129800, now seen corresponding path program 1 times [2023-11-21 22:21:34,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:34,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795941322] [2023-11-21 22:21:34,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:34,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:34,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:34,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:34,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:34,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795941322] [2023-11-21 22:21:34,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795941322] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:34,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:34,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:21:34,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838381970] [2023-11-21 22:21:34,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:34,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:34,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:34,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:34,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:34,373 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1029 out of 1075 [2023-11-21 22:21:34,377 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 954 places, 963 transitions, 1939 flow. Second operand has 3 states, 3 states have (on average 1030.3333333333333) internal successors, (3091), 3 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:34,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:34,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1029 of 1075 [2023-11-21 22:21:34,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:21:35,041 INFO L124 PetriNetUnfolderBase]: 33/1460 cut-off events. [2023-11-21 22:21:35,041 INFO L125 PetriNetUnfolderBase]: For 6/22 co-relation queries the response was YES. [2023-11-21 22:21:35,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1500 conditions, 1460 events. 33/1460 cut-off events. For 6/22 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 5278 event pairs, 6 based on Foata normal form. 0/1278 useless extension candidates. Maximal degree in co-relation 1457. Up to 25 conditions per place. [2023-11-21 22:21:35,071 INFO L140 encePairwiseOnDemand]: 1072/1075 looper letters, 12 selfloop transitions, 2 changer transitions 0/962 dead transitions. [2023-11-21 22:21:35,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 955 places, 962 transitions, 1965 flow [2023-11-21 22:21:35,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:35,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:21:35,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3102 transitions. [2023-11-21 22:21:35,079 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9618604651162791 [2023-11-21 22:21:35,080 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3102 transitions. [2023-11-21 22:21:35,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3102 transitions. [2023-11-21 22:21:35,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:21:35,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3102 transitions. [2023-11-21 22:21:35,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1034.0) internal successors, (3102), 3 states have internal predecessors, (3102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:35,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:35,092 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:35,092 INFO L175 Difference]: Start difference. First operand has 954 places, 963 transitions, 1939 flow. Second operand 3 states and 3102 transitions. [2023-11-21 22:21:35,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 955 places, 962 transitions, 1965 flow [2023-11-21 22:21:35,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 953 places, 962 transitions, 1961 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:21:35,117 INFO L231 Difference]: Finished difference. Result has 953 places, 962 transitions, 1937 flow [2023-11-21 22:21:35,119 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1075, PETRI_DIFFERENCE_MINUEND_FLOW=1933, PETRI_DIFFERENCE_MINUEND_PLACES=951, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=962, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=960, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1937, PETRI_PLACES=953, PETRI_TRANSITIONS=962} [2023-11-21 22:21:35,120 INFO L281 CegarLoopForPetriNet]: 1009 programPoint places, -56 predicate places. [2023-11-21 22:21:35,120 INFO L495 AbstractCegarLoop]: Abstraction has has 953 places, 962 transitions, 1937 flow [2023-11-21 22:21:35,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1030.3333333333333) internal successors, (3091), 3 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:35,121 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:35,122 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:35,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-21 22:21:35,122 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-21 22:21:35,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:35,123 INFO L85 PathProgramCache]: Analyzing trace with hash 704909287, now seen corresponding path program 1 times [2023-11-21 22:21:35,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:35,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889616095] [2023-11-21 22:21:35,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:35,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:35,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:35,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:35,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:35,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889616095] [2023-11-21 22:21:35,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889616095] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:35,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:35,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:21:35,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052156824] [2023-11-21 22:21:35,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:35,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:35,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:35,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:35,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:35,227 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1030 out of 1075 [2023-11-21 22:21:35,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 953 places, 962 transitions, 1937 flow. Second operand has 3 states, 3 states have (on average 1031.3333333333333) internal successors, (3094), 3 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:35,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:35,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1030 of 1075 [2023-11-21 22:21:35,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:21:35,545 INFO L124 PetriNetUnfolderBase]: 20/991 cut-off events. [2023-11-21 22:21:35,546 INFO L125 PetriNetUnfolderBase]: For 5/7 co-relation queries the response was YES. [2023-11-21 22:21:35,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1019 conditions, 991 events. 20/991 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2141 event pairs, 2 based on Foata normal form. 0/888 useless extension candidates. Maximal degree in co-relation 976. Up to 16 conditions per place. [2023-11-21 22:21:35,558 INFO L140 encePairwiseOnDemand]: 1072/1075 looper letters, 11 selfloop transitions, 2 changer transitions 0/961 dead transitions. [2023-11-21 22:21:35,558 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 954 places, 961 transitions, 1961 flow [2023-11-21 22:21:35,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:35,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:21:35,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3104 transitions. [2023-11-21 22:21:35,568 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9624806201550388 [2023-11-21 22:21:35,568 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3104 transitions. [2023-11-21 22:21:35,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3104 transitions. [2023-11-21 22:21:35,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:21:35,570 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3104 transitions. [2023-11-21 22:21:35,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1034.6666666666667) internal successors, (3104), 3 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) [2023-11-21 22:21:35,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:35,584 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:35,584 INFO L175 Difference]: Start difference. First operand has 953 places, 962 transitions, 1937 flow. Second operand 3 states and 3104 transitions. [2023-11-21 22:21:35,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 954 places, 961 transitions, 1961 flow [2023-11-21 22:21:35,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 952 places, 961 transitions, 1957 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:21:35,610 INFO L231 Difference]: Finished difference. Result has 952 places, 961 transitions, 1935 flow [2023-11-21 22:21:35,612 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1075, PETRI_DIFFERENCE_MINUEND_FLOW=1931, PETRI_DIFFERENCE_MINUEND_PLACES=950, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=961, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=959, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1935, PETRI_PLACES=952, PETRI_TRANSITIONS=961} [2023-11-21 22:21:35,612 INFO L281 CegarLoopForPetriNet]: 1009 programPoint places, -57 predicate places. [2023-11-21 22:21:35,613 INFO L495 AbstractCegarLoop]: Abstraction has has 952 places, 961 transitions, 1935 flow [2023-11-21 22:21:35,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1031.3333333333333) internal successors, (3094), 3 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:35,614 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:35,614 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:35,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-21 22:21:35,614 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-21 22:21:35,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:35,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1697786373, now seen corresponding path program 1 times [2023-11-21 22:21:35,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:35,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958038998] [2023-11-21 22:21:35,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:35,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:35,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:35,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:35,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:35,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958038998] [2023-11-21 22:21:35,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958038998] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:35,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:35,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:21:35,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615628406] [2023-11-21 22:21:35,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:35,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:35,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:35,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:35,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:35,713 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1029 out of 1075 [2023-11-21 22:21:35,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 952 places, 961 transitions, 1935 flow. Second operand has 3 states, 3 states have (on average 1030.3333333333333) internal successors, (3091), 3 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:35,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:35,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1029 of 1075 [2023-11-21 22:21:35,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:21:36,173 INFO L124 PetriNetUnfolderBase]: 30/1226 cut-off events. [2023-11-21 22:21:36,173 INFO L125 PetriNetUnfolderBase]: For 9/11 co-relation queries the response was YES. [2023-11-21 22:21:36,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1263 conditions, 1226 events. 30/1226 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 3186 event pairs, 6 based on Foata normal form. 0/1080 useless extension candidates. Maximal degree in co-relation 1220. Up to 25 conditions per place. [2023-11-21 22:21:36,200 INFO L140 encePairwiseOnDemand]: 1072/1075 looper letters, 12 selfloop transitions, 2 changer transitions 0/960 dead transitions. [2023-11-21 22:21:36,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 953 places, 960 transitions, 1961 flow [2023-11-21 22:21:36,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:36,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:21:36,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3102 transitions. [2023-11-21 22:21:36,211 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9618604651162791 [2023-11-21 22:21:36,211 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3102 transitions. [2023-11-21 22:21:36,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3102 transitions. [2023-11-21 22:21:36,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:21:36,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3102 transitions. [2023-11-21 22:21:36,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1034.0) internal successors, (3102), 3 states have internal predecessors, (3102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:36,225 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:36,226 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:36,226 INFO L175 Difference]: Start difference. First operand has 952 places, 961 transitions, 1935 flow. Second operand 3 states and 3102 transitions. [2023-11-21 22:21:36,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 953 places, 960 transitions, 1961 flow [2023-11-21 22:21:36,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 951 places, 960 transitions, 1957 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:21:36,250 INFO L231 Difference]: Finished difference. Result has 951 places, 960 transitions, 1933 flow [2023-11-21 22:21:36,252 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1075, PETRI_DIFFERENCE_MINUEND_FLOW=1929, PETRI_DIFFERENCE_MINUEND_PLACES=949, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=960, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=958, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1933, PETRI_PLACES=951, PETRI_TRANSITIONS=960} [2023-11-21 22:21:36,252 INFO L281 CegarLoopForPetriNet]: 1009 programPoint places, -58 predicate places. [2023-11-21 22:21:36,253 INFO L495 AbstractCegarLoop]: Abstraction has has 951 places, 960 transitions, 1933 flow [2023-11-21 22:21:36,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1030.3333333333333) internal successors, (3091), 3 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:36,254 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:36,254 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:36,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-21 22:21:36,254 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-21 22:21:36,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:36,255 INFO L85 PathProgramCache]: Analyzing trace with hash 402711920, now seen corresponding path program 1 times [2023-11-21 22:21:36,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:36,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051034500] [2023-11-21 22:21:36,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:36,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:36,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:36,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:36,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051034500] [2023-11-21 22:21:36,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051034500] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:36,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:36,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:21:36,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862565274] [2023-11-21 22:21:36,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:36,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:36,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:36,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:36,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:36,345 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1029 out of 1075 [2023-11-21 22:21:36,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 951 places, 960 transitions, 1933 flow. Second operand has 3 states, 3 states have (on average 1030.3333333333333) internal successors, (3091), 3 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:36,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:36,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1029 of 1075 [2023-11-21 22:21:36,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:21:36,742 INFO L124 PetriNetUnfolderBase]: 30/1187 cut-off events. [2023-11-21 22:21:36,742 INFO L125 PetriNetUnfolderBase]: For 9/11 co-relation queries the response was YES. [2023-11-21 22:21:36,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1224 conditions, 1187 events. 30/1187 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 3050 event pairs, 6 based on Foata normal form. 0/1048 useless extension candidates. Maximal degree in co-relation 1181. Up to 25 conditions per place. [2023-11-21 22:21:36,757 INFO L140 encePairwiseOnDemand]: 1072/1075 looper letters, 12 selfloop transitions, 2 changer transitions 0/959 dead transitions. [2023-11-21 22:21:36,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 952 places, 959 transitions, 1959 flow [2023-11-21 22:21:36,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:36,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:21:36,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3102 transitions. [2023-11-21 22:21:36,766 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9618604651162791 [2023-11-21 22:21:36,766 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3102 transitions. [2023-11-21 22:21:36,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3102 transitions. [2023-11-21 22:21:36,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:21:36,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3102 transitions. [2023-11-21 22:21:36,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1034.0) internal successors, (3102), 3 states have internal predecessors, (3102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:36,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:36,777 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:36,777 INFO L175 Difference]: Start difference. First operand has 951 places, 960 transitions, 1933 flow. Second operand 3 states and 3102 transitions. [2023-11-21 22:21:36,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 952 places, 959 transitions, 1959 flow [2023-11-21 22:21:36,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 950 places, 959 transitions, 1955 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:21:36,796 INFO L231 Difference]: Finished difference. Result has 950 places, 959 transitions, 1931 flow [2023-11-21 22:21:36,798 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1075, PETRI_DIFFERENCE_MINUEND_FLOW=1927, PETRI_DIFFERENCE_MINUEND_PLACES=948, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=959, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=957, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1931, PETRI_PLACES=950, PETRI_TRANSITIONS=959} [2023-11-21 22:21:36,798 INFO L281 CegarLoopForPetriNet]: 1009 programPoint places, -59 predicate places. [2023-11-21 22:21:36,799 INFO L495 AbstractCegarLoop]: Abstraction has has 950 places, 959 transitions, 1931 flow [2023-11-21 22:21:36,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1030.3333333333333) internal successors, (3091), 3 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:36,799 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:36,800 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:36,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-21 22:21:36,800 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-21 22:21:36,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:36,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1374932715, now seen corresponding path program 1 times [2023-11-21 22:21:36,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:36,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126430738] [2023-11-21 22:21:36,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:36,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:36,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:36,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:36,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126430738] [2023-11-21 22:21:36,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126430738] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:36,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:36,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:21:36,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181566658] [2023-11-21 22:21:36,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:36,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:21:36,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:36,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:21:36,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:21:36,973 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1028 out of 1075 [2023-11-21 22:21:36,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 950 places, 959 transitions, 1931 flow. Second operand has 3 states, 3 states have (on average 1029.3333333333333) internal successors, (3088), 3 states have internal predecessors, (3088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:36,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:36,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1028 of 1075 [2023-11-21 22:21:36,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:21:37,477 INFO L124 PetriNetUnfolderBase]: 42/1582 cut-off events. [2023-11-21 22:21:37,477 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-21 22:21:37,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1636 conditions, 1582 events. 42/1582 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 6595 event pairs, 12 based on Foata normal form. 0/1382 useless extension candidates. Maximal degree in co-relation 1593. Up to 38 conditions per place. [2023-11-21 22:21:37,506 INFO L140 encePairwiseOnDemand]: 1072/1075 looper letters, 13 selfloop transitions, 2 changer transitions 0/958 dead transitions. [2023-11-21 22:21:37,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 951 places, 958 transitions, 1959 flow [2023-11-21 22:21:37,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:21:37,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:21:37,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3100 transitions. [2023-11-21 22:21:37,515 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9612403100775194 [2023-11-21 22:21:37,515 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3100 transitions. [2023-11-21 22:21:37,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3100 transitions. [2023-11-21 22:21:37,516 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:21:37,516 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3100 transitions. [2023-11-21 22:21:37,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1033.3333333333333) internal successors, (3100), 3 states have internal predecessors, (3100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:37,524 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:37,525 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1075.0) internal successors, (4300), 4 states have internal predecessors, (4300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:37,525 INFO L175 Difference]: Start difference. First operand has 950 places, 959 transitions, 1931 flow. Second operand 3 states and 3100 transitions. [2023-11-21 22:21:37,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 951 places, 958 transitions, 1959 flow [2023-11-21 22:21:37,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 949 places, 958 transitions, 1955 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:21:37,545 INFO L231 Difference]: Finished difference. Result has 949 places, 958 transitions, 1929 flow [2023-11-21 22:21:37,546 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1075, PETRI_DIFFERENCE_MINUEND_FLOW=1925, PETRI_DIFFERENCE_MINUEND_PLACES=947, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=958, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=956, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1929, PETRI_PLACES=949, PETRI_TRANSITIONS=958} [2023-11-21 22:21:37,546 INFO L281 CegarLoopForPetriNet]: 1009 programPoint places, -60 predicate places. [2023-11-21 22:21:37,546 INFO L495 AbstractCegarLoop]: Abstraction has has 949 places, 958 transitions, 1929 flow [2023-11-21 22:21:37,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1029.3333333333333) internal successors, (3088), 3 states have internal predecessors, (3088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:37,547 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:21:37,547 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:37,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-21 22:21:37,548 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 191 more)] === [2023-11-21 22:21:37,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:37,548 INFO L85 PathProgramCache]: Analyzing trace with hash -2022188252, now seen corresponding path program 1 times [2023-11-21 22:21:37,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:37,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051254741] [2023-11-21 22:21:37,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:37,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:37,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:38,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:21:38,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:21:38,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051254741] [2023-11-21 22:21:38,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051254741] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:21:38,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:21:38,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:21:38,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197714378] [2023-11-21 22:21:38,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:21:38,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:21:38,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:21:38,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:21:38,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:21:39,677 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 928 out of 1075 [2023-11-21 22:21:39,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 949 places, 958 transitions, 1929 flow. Second operand has 6 states, 6 states have (on average 929.5) internal successors, (5577), 6 states have internal predecessors, (5577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:39,683 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:21:39,683 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 928 of 1075 [2023-11-21 22:21:39,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand