./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b904e9-bf39-451d-b0f8-f3f731a35ba3/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b904e9-bf39-451d-b0f8-f3f731a35ba3/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b904e9-bf39-451d-b0f8-f3f731a35ba3/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b904e9-bf39-451d-b0f8-f3f731a35ba3/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b904e9-bf39-451d-b0f8-f3f731a35ba3/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b904e9-bf39-451d-b0f8-f3f731a35ba3/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7a18ee378e36a8b6ec16846ba26aa7ebab799f55311c04bb5b266d3aa0d0986d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:33:19,967 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:33:20,067 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b904e9-bf39-451d-b0f8-f3f731a35ba3/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 22:33:20,077 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:33:20,078 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:33:20,125 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:33:20,126 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:33:20,127 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:33:20,128 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:33:20,134 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:33:20,136 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:33:20,136 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:33:20,137 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:33:20,139 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:33:20,139 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:33:20,140 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:33:20,140 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:33:20,141 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:33:20,141 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:33:20,142 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:33:20,143 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:33:20,143 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:33:20,144 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 22:33:20,144 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:33:20,145 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:33:20,145 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:33:20,146 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:33:20,147 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:33:20,147 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:33:20,148 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:33:20,150 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:33:20,150 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:33:20,150 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:33:20,151 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:33:20,151 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:33:20,151 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:33:20,151 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:33:20,152 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:33:20,152 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:33:20,152 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:33:20,152 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:33:20,153 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_51b904e9-bf39-451d-b0f8-f3f731a35ba3/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b904e9-bf39-451d-b0f8-f3f731a35ba3/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a18ee378e36a8b6ec16846ba26aa7ebab799f55311c04bb5b266d3aa0d0986d [2023-11-06 22:33:20,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:33:20,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:33:20,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:33:20,519 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:33:20,520 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:33:20,522 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b904e9-bf39-451d-b0f8-f3f731a35ba3/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c [2023-11-06 22:33:23,822 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:33:24,048 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:33:24,049 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b904e9-bf39-451d-b0f8-f3f731a35ba3/sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c [2023-11-06 22:33:24,059 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b904e9-bf39-451d-b0f8-f3f731a35ba3/bin/uautomizer-verify-WvqO1wxjHP/data/a398cc965/f9562a10860143fc91e98300a8920c22/FLAGe9107a8ca [2023-11-06 22:33:24,079 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b904e9-bf39-451d-b0f8-f3f731a35ba3/bin/uautomizer-verify-WvqO1wxjHP/data/a398cc965/f9562a10860143fc91e98300a8920c22 [2023-11-06 22:33:24,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:33:24,088 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:33:24,091 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:33:24,091 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:33:24,097 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:33:24,098 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:33:24" (1/1) ... [2023-11-06 22:33:24,099 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27778490 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:24, skipping insertion in model container [2023-11-06 22:33:24,099 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:33:24" (1/1) ... [2023-11-06 22:33:24,147 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:33:24,425 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:33:24,436 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:33:24,496 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:33:24,515 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:33:24,515 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:24 WrapperNode [2023-11-06 22:33:24,516 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:33:24,517 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:33:24,517 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:33:24,518 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:33:24,526 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:24" (1/1) ... [2023-11-06 22:33:24,542 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:24" (1/1) ... [2023-11-06 22:33:24,607 INFO L138 Inliner]: procedures = 26, calls = 45, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 871 [2023-11-06 22:33:24,608 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:33:24,608 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:33:24,609 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:33:24,609 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:33:24,632 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:24" (1/1) ... [2023-11-06 22:33:24,633 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:24" (1/1) ... [2023-11-06 22:33:24,640 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:24" (1/1) ... [2023-11-06 22:33:24,647 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:24" (1/1) ... [2023-11-06 22:33:24,691 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:24" (1/1) ... [2023-11-06 22:33:24,707 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:24" (1/1) ... [2023-11-06 22:33:24,717 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:24" (1/1) ... [2023-11-06 22:33:24,721 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:24" (1/1) ... [2023-11-06 22:33:24,740 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:33:24,745 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:33:24,745 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:33:24,745 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:33:24,746 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:24" (1/1) ... [2023-11-06 22:33:24,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:33:24,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b904e9-bf39-451d-b0f8-f3f731a35ba3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:33:24,784 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b904e9-bf39-451d-b0f8-f3f731a35ba3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:33:24,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51b904e9-bf39-451d-b0f8-f3f731a35ba3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:33:24,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:33:24,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:33:24,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:33:24,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:33:24,837 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 22:33:24,838 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 22:33:24,838 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 22:33:24,840 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 22:33:24,840 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-06 22:33:24,840 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-06 22:33:24,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:33:24,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:33:24,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:33:24,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:33:24,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:33:24,846 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:33:25,094 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:33:25,097 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:33:26,175 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:33:26,191 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:33:26,192 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-06 22:33:26,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:33:26 BoogieIcfgContainer [2023-11-06 22:33:26,195 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:33:26,198 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:33:26,198 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:33:26,202 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:33:26,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:33:24" (1/3) ... [2023-11-06 22:33:26,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f02835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:33:26, skipping insertion in model container [2023-11-06 22:33:26,203 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:33:24" (2/3) ... [2023-11-06 22:33:26,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f02835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:33:26, skipping insertion in model container [2023-11-06 22:33:26,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:33:26" (3/3) ... [2023-11-06 22:33:26,205 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-name-comparator-trans.wvr.c [2023-11-06 22:33:26,215 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:33:26,226 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:33:26,226 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 152 error locations. [2023-11-06 22:33:26,227 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:33:26,454 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-06 22:33:26,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1082 places, 1130 transitions, 2281 flow [2023-11-06 22:33:27,541 INFO L124 PetriNetUnfolderBase]: 58/1127 cut-off events. [2023-11-06 22:33:27,541 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 22:33:27,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1140 conditions, 1127 events. 58/1127 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3916 event pairs, 0 based on Foata normal form. 0/917 useless extension candidates. Maximal degree in co-relation 854. Up to 2 conditions per place. [2023-11-06 22:33:27,608 INFO L82 GeneralOperation]: Start removeDead. Operand has 1082 places, 1130 transitions, 2281 flow [2023-11-06 22:33:27,663 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1054 places, 1100 transitions, 2218 flow [2023-11-06 22:33:27,668 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:33:27,680 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1054 places, 1100 transitions, 2218 flow [2023-11-06 22:33:27,684 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1054 places, 1100 transitions, 2218 flow [2023-11-06 22:33:27,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1054 places, 1100 transitions, 2218 flow [2023-11-06 22:33:28,523 INFO L124 PetriNetUnfolderBase]: 56/1100 cut-off events. [2023-11-06 22:33:28,524 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 22:33:28,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1113 conditions, 1100 events. 56/1100 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3897 event pairs, 0 based on Foata normal form. 0/893 useless extension candidates. Maximal degree in co-relation 854. Up to 2 conditions per place. [2023-11-06 22:33:28,778 INFO L119 LiptonReduction]: Number of co-enabled transitions 493350 [2023-11-06 22:34:03,629 INFO L134 LiptonReduction]: Checked pairs total: 1065736 [2023-11-06 22:34:03,630 INFO L136 LiptonReduction]: Total number of compositions: 1324 [2023-11-06 22:34:03,652 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:34:03,661 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2abaaf23, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:34:03,661 INFO L358 AbstractCegarLoop]: Starting to check reachability of 284 error locations. [2023-11-06 22:34:03,663 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:34:03,663 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 22:34:03,664 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:34:03,664 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:34:03,665 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 22:34:03,666 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-06 22:34:03,672 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:34:03,673 INFO L85 PathProgramCache]: Analyzing trace with hash 4634, now seen corresponding path program 1 times [2023-11-06 22:34:03,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:34:03,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828919166] [2023-11-06 22:34:03,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:34:03,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:34:03,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:34:03,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:34:03,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:34:03,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828919166] [2023-11-06 22:34:03,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828919166] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:34:03,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:34:03,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 22:34:03,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888222430] [2023-11-06 22:34:03,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:34:03,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:34:03,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:34:03,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:34:03,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:34:03,894 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1104 out of 2454 [2023-11-06 22:34:03,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 277 transitions, 572 flow. Second operand has 2 states, 2 states have (on average 1104.5) internal successors, (2209), 2 states have internal predecessors, (2209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:34:03,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:34:03,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1104 of 2454 [2023-11-06 22:34:03,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:34:17,030 INFO L124 PetriNetUnfolderBase]: 46424/75354 cut-off events. [2023-11-06 22:34:17,030 INFO L125 PetriNetUnfolderBase]: For 1652/1823 co-relation queries the response was YES. [2023-11-06 22:34:17,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139022 conditions, 75354 events. 46424/75354 cut-off events. For 1652/1823 co-relation queries the response was YES. Maximal size of possible extension queue 1490. Compared 603442 event pairs, 36815 based on Foata normal form. 7608/71782 useless extension candidates. Maximal degree in co-relation 132251. Up to 62464 conditions per place. [2023-11-06 22:34:17,994 INFO L140 encePairwiseOnDemand]: 2342/2454 looper letters, 80 selfloop transitions, 0 changer transitions 1/165 dead transitions. [2023-11-06 22:34:17,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 165 transitions, 510 flow [2023-11-06 22:34:17,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:34:18,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:34:18,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2401 transitions. [2023-11-06 22:34:18,035 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48920130399348005 [2023-11-06 22:34:18,036 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 2401 transitions. [2023-11-06 22:34:18,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 2401 transitions. [2023-11-06 22:34:18,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:34:18,048 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 2401 transitions. [2023-11-06 22:34:18,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 1200.5) internal successors, (2401), 2 states have internal predecessors, (2401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:34:18,089 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 2454.0) internal successors, (7362), 3 states have internal predecessors, (7362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:34:18,096 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 2454.0) internal successors, (7362), 3 states have internal predecessors, (7362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:34:18,099 INFO L175 Difference]: Start difference. First operand has 273 places, 277 transitions, 572 flow. Second operand 2 states and 2401 transitions. [2023-11-06 22:34:18,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 165 transitions, 510 flow [2023-11-06 22:34:18,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 165 transitions, 498 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-06 22:34:18,143 INFO L231 Difference]: Finished difference. Result has 157 places, 164 transitions, 333 flow [2023-11-06 22:34:18,146 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2454, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=333, PETRI_PLACES=157, PETRI_TRANSITIONS=164} [2023-11-06 22:34:18,152 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, -116 predicate places. [2023-11-06 22:34:18,153 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 164 transitions, 333 flow [2023-11-06 22:34:18,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1104.5) internal successors, (2209), 2 states have internal predecessors, (2209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:34:18,156 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:34:18,156 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:34:18,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:34:18,157 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-06 22:34:18,158 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:34:18,159 INFO L85 PathProgramCache]: Analyzing trace with hash 164116320, now seen corresponding path program 1 times [2023-11-06 22:34:18,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:34:18,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640389138] [2023-11-06 22:34:18,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:34:18,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:34:18,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:34:18,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:34:18,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:34:18,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640389138] [2023-11-06 22:34:18,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640389138] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:34:18,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:34:18,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:34:18,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611007882] [2023-11-06 22:34:18,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:34:18,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:34:18,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:34:18,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:34:18,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:34:18,718 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1098 out of 2454 [2023-11-06 22:34:18,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 164 transitions, 333 flow. Second operand has 3 states, 3 states have (on average 1099.3333333333333) internal successors, (3298), 3 states have internal predecessors, (3298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:34:18,726 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:34:18,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1098 of 2454 [2023-11-06 22:34:18,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:34:28,102 INFO L124 PetriNetUnfolderBase]: 46424/75354 cut-off events. [2023-11-06 22:34:28,102 INFO L125 PetriNetUnfolderBase]: For 389/560 co-relation queries the response was YES. [2023-11-06 22:34:28,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138220 conditions, 75354 events. 46424/75354 cut-off events. For 389/560 co-relation queries the response was YES. Maximal size of possible extension queue 1490. Compared 603298 event pairs, 36815 based on Foata normal form. 0/64174 useless extension candidates. Maximal degree in co-relation 138217. Up to 62463 conditions per place. [2023-11-06 22:34:28,786 INFO L140 encePairwiseOnDemand]: 2451/2454 looper letters, 79 selfloop transitions, 2 changer transitions 0/165 dead transitions. [2023-11-06 22:34:28,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 165 transitions, 497 flow [2023-11-06 22:34:28,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:34:28,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:34:28,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3376 transitions. [2023-11-06 22:34:28,804 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45857104047813096 [2023-11-06 22:34:28,804 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3376 transitions. [2023-11-06 22:34:28,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3376 transitions. [2023-11-06 22:34:28,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:34:28,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3376 transitions. [2023-11-06 22:34:28,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1125.3333333333333) internal successors, (3376), 3 states have internal predecessors, (3376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:34:28,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2454.0) internal successors, (9816), 4 states have internal predecessors, (9816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:34:28,857 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2454.0) internal successors, (9816), 4 states have internal predecessors, (9816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:34:28,858 INFO L175 Difference]: Start difference. First operand has 157 places, 164 transitions, 333 flow. Second operand 3 states and 3376 transitions. [2023-11-06 22:34:28,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 165 transitions, 497 flow [2023-11-06 22:34:28,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 165 transitions, 497 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:34:28,868 INFO L231 Difference]: Finished difference. Result has 159 places, 165 transitions, 345 flow [2023-11-06 22:34:28,869 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2454, PETRI_DIFFERENCE_MINUEND_FLOW=333, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=345, PETRI_PLACES=159, PETRI_TRANSITIONS=165} [2023-11-06 22:34:28,871 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, -114 predicate places. [2023-11-06 22:34:28,872 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 165 transitions, 345 flow [2023-11-06 22:34:28,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1099.3333333333333) internal successors, (3298), 3 states have internal predecessors, (3298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:34:28,882 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:34:28,882 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:34:28,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:34:28,883 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-06 22:34:28,884 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:34:28,885 INFO L85 PathProgramCache]: Analyzing trace with hash 830934876, now seen corresponding path program 1 times [2023-11-06 22:34:28,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:34:28,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874850044] [2023-11-06 22:34:28,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:34:28,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:34:28,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:34:28,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:34:28,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:34:28,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874850044] [2023-11-06 22:34:28,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874850044] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:34:28,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:34:28,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:34:28,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634528283] [2023-11-06 22:34:28,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:34:28,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:34:28,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:34:28,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:34:28,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:34:29,052 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1073 out of 2454 [2023-11-06 22:34:29,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 165 transitions, 345 flow. Second operand has 3 states, 3 states have (on average 1075.0) internal successors, (3225), 3 states have internal predecessors, (3225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:34:29,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:34:29,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1073 of 2454 [2023-11-06 22:34:29,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:34:40,695 INFO L124 PetriNetUnfolderBase]: 60710/96220 cut-off events. [2023-11-06 22:34:40,695 INFO L125 PetriNetUnfolderBase]: For 362/362 co-relation queries the response was YES. [2023-11-06 22:34:40,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178614 conditions, 96220 events. 60710/96220 cut-off events. For 362/362 co-relation queries the response was YES. Maximal size of possible extension queue 1802. Compared 774304 event pairs, 17739 based on Foata normal form. 0/83709 useless extension candidates. Maximal degree in co-relation 178609. Up to 81762 conditions per place. [2023-11-06 22:34:41,553 INFO L140 encePairwiseOnDemand]: 2442/2454 looper letters, 115 selfloop transitions, 2 changer transitions 0/185 dead transitions. [2023-11-06 22:34:41,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 185 transitions, 621 flow [2023-11-06 22:34:41,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:34:41,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:34:41,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3345 transitions. [2023-11-06 22:34:41,573 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.454360228198859 [2023-11-06 22:34:41,574 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3345 transitions. [2023-11-06 22:34:41,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3345 transitions. [2023-11-06 22:34:41,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:34:41,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3345 transitions. [2023-11-06 22:34:41,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1115.0) internal successors, (3345), 3 states have internal predecessors, (3345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:34:41,620 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 2454.0) internal successors, (9816), 4 states have internal predecessors, (9816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:34:41,626 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 2454.0) internal successors, (9816), 4 states have internal predecessors, (9816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:34:41,626 INFO L175 Difference]: Start difference. First operand has 159 places, 165 transitions, 345 flow. Second operand 3 states and 3345 transitions. [2023-11-06 22:34:41,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 185 transitions, 621 flow [2023-11-06 22:34:41,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 185 transitions, 617 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-06 22:34:41,641 INFO L231 Difference]: Finished difference. Result has 151 places, 157 transitions, 335 flow [2023-11-06 22:34:41,642 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=2454, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=335, PETRI_PLACES=151, PETRI_TRANSITIONS=157} [2023-11-06 22:34:41,644 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, -122 predicate places. [2023-11-06 22:34:41,644 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 157 transitions, 335 flow [2023-11-06 22:34:41,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1075.0) internal successors, (3225), 3 states have internal predecessors, (3225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:34:41,647 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:34:41,647 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:34:41,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:34:41,653 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2023-11-06 22:34:41,654 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:34:41,654 INFO L85 PathProgramCache]: Analyzing trace with hash -335419874, now seen corresponding path program 1 times [2023-11-06 22:34:41,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:34:41,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885330231] [2023-11-06 22:34:41,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:34:41,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:34:41,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:34:41,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:34:41,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:34:41,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885330231] [2023-11-06 22:34:41,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885330231] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:34:41,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:34:41,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:34:41,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618035403] [2023-11-06 22:34:41,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:34:41,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:34:41,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:34:41,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:34:41,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:34:41,839 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 1073 out of 2454 [2023-11-06 22:34:41,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 157 transitions, 335 flow. Second operand has 3 states, 3 states have (on average 1075.3333333333333) internal successors, (3226), 3 states have internal predecessors, (3226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:34:41,866 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:34:41,866 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1073 of 2454 [2023-11-06 22:34:41,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand