./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/03_incdec.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b 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_9b49d715-596c-4beb-909f-aa074deab678/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b49d715-596c-4beb-909f-aa074deab678/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_9b49d715-596c-4beb-909f-aa074deab678/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b49d715-596c-4beb-909f-aa074deab678/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/03_incdec.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b49d715-596c-4beb-909f-aa074deab678/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_9b49d715-596c-4beb-909f-aa074deab678/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 c1c717c54832d7b18d55a1459c6f740661389c67176a032001ce64e3c282b955 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:42:03,821 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:42:03,942 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b49d715-596c-4beb-909f-aa074deab678/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 22:42:03,955 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:42:03,956 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:42:04,005 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:42:04,006 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:42:04,007 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:42:04,008 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:42:04,013 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:42:04,015 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:42:04,015 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:42:04,016 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:42:04,018 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:42:04,018 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:42:04,019 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:42:04,019 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:42:04,020 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:42:04,020 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:42:04,021 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:42:04,021 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:42:04,022 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:42:04,022 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 22:42:04,023 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:42:04,023 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:42:04,024 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:42:04,024 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:42:04,025 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:42:04,026 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:42:04,026 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:42:04,028 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:42:04,028 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:42:04,029 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:42:04,029 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:42:04,029 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:42:04,030 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:42:04,030 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:42:04,030 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:42:04,031 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:42:04,031 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:42:04,031 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:42:04,032 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_9b49d715-596c-4beb-909f-aa074deab678/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b49d715-596c-4beb-909f-aa074deab678/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1c717c54832d7b18d55a1459c6f740661389c67176a032001ce64e3c282b955 [2023-11-06 22:42:04,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:42:04,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:42:04,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:42:04,419 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:42:04,419 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:42:04,421 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b49d715-596c-4beb-909f-aa074deab678/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-ext/03_incdec.i [2023-11-06 22:42:07,541 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:42:07,813 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:42:07,814 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b49d715-596c-4beb-909f-aa074deab678/sv-benchmarks/c/pthread-ext/03_incdec.i [2023-11-06 22:42:07,831 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b49d715-596c-4beb-909f-aa074deab678/bin/uautomizer-verify-WvqO1wxjHP/data/8c86a6147/5da01191ed6c40919a5a99dbe19f8406/FLAG2d978fd80 [2023-11-06 22:42:07,859 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b49d715-596c-4beb-909f-aa074deab678/bin/uautomizer-verify-WvqO1wxjHP/data/8c86a6147/5da01191ed6c40919a5a99dbe19f8406 [2023-11-06 22:42:07,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:42:07,867 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:42:07,871 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:42:07,871 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:42:07,877 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:42:07,878 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:42:07" (1/1) ... [2023-11-06 22:42:07,880 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@246a09f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:07, skipping insertion in model container [2023-11-06 22:42:07,880 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:42:07" (1/1) ... [2023-11-06 22:42:07,949 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:42:08,387 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:42:08,403 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:42:08,481 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:42:08,539 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:42:08,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:08 WrapperNode [2023-11-06 22:42:08,539 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:42:08,541 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:42:08,541 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:42:08,541 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:42:08,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:08" (1/1) ... [2023-11-06 22:42:08,569 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:08" (1/1) ... [2023-11-06 22:42:08,600 INFO L138 Inliner]: procedures = 172, calls = 26, calls flagged for inlining = 18, calls inlined = 26, statements flattened = 241 [2023-11-06 22:42:08,600 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:42:08,601 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:42:08,601 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:42:08,601 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:42:08,611 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:08" (1/1) ... [2023-11-06 22:42:08,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:08" (1/1) ... [2023-11-06 22:42:08,616 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:08" (1/1) ... [2023-11-06 22:42:08,617 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:08" (1/1) ... [2023-11-06 22:42:08,625 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:08" (1/1) ... [2023-11-06 22:42:08,629 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:08" (1/1) ... [2023-11-06 22:42:08,632 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:08" (1/1) ... [2023-11-06 22:42:08,634 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:08" (1/1) ... [2023-11-06 22:42:08,638 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:42:08,639 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:42:08,640 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:42:08,640 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:42:08,641 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:08" (1/1) ... [2023-11-06 22:42:08,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:42:08,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b49d715-596c-4beb-909f-aa074deab678/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:08,676 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b49d715-596c-4beb-909f-aa074deab678/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:08,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b49d715-596c-4beb-909f-aa074deab678/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:42:08,735 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-06 22:42:08,735 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-06 22:42:08,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:42:08,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:42:08,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:42:08,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:42:08,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:42:08,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:42:08,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:42:08,739 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 22:42:08,870 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:42:08,872 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:42:09,414 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:42:09,721 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:42:09,723 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:42:09,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:42:09 BoogieIcfgContainer [2023-11-06 22:42:09,727 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:42:09,730 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:42:09,730 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:42:09,734 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:42:09,734 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:42:07" (1/3) ... [2023-11-06 22:42:09,735 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b266b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:42:09, skipping insertion in model container [2023-11-06 22:42:09,735 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:08" (2/3) ... [2023-11-06 22:42:09,738 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b266b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:42:09, skipping insertion in model container [2023-11-06 22:42:09,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:42:09" (3/3) ... [2023-11-06 22:42:09,740 INFO L112 eAbstractionObserver]: Analyzing ICFG 03_incdec.i [2023-11-06 22:42:09,749 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:42:09,760 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:42:09,760 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2023-11-06 22:42:09,761 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:42:09,864 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 22:42:09,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 167 transitions, 338 flow [2023-11-06 22:42:10,019 INFO L124 PetriNetUnfolderBase]: 11/178 cut-off events. [2023-11-06 22:42:10,019 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:42:10,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 178 events. 11/178 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 452 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 152. Up to 4 conditions per place. [2023-11-06 22:42:10,029 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 167 transitions, 338 flow [2023-11-06 22:42:10,037 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 167 transitions, 338 flow [2023-11-06 22:42:10,041 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:42:10,053 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 160 places, 167 transitions, 338 flow [2023-11-06 22:42:10,056 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 160 places, 167 transitions, 338 flow [2023-11-06 22:42:10,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 167 transitions, 338 flow [2023-11-06 22:42:10,104 INFO L124 PetriNetUnfolderBase]: 11/178 cut-off events. [2023-11-06 22:42:10,105 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:42:10,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 178 events. 11/178 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 452 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 152. Up to 4 conditions per place. [2023-11-06 22:42:10,118 INFO L119 LiptonReduction]: Number of co-enabled transitions 3892 [2023-11-06 22:42:18,565 INFO L134 LiptonReduction]: Checked pairs total: 4195 [2023-11-06 22:42:18,566 INFO L136 LiptonReduction]: Total number of compositions: 252 [2023-11-06 22:42:18,595 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:42:18,603 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;@4adeed12, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:42:18,603 INFO L358 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2023-11-06 22:42:18,608 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:42:18,608 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-11-06 22:42:18,609 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:42:18,610 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:42:18,610 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-06 22:42:18,611 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err16ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-06 22:42:18,616 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:18,616 INFO L85 PathProgramCache]: Analyzing trace with hash 34983948, now seen corresponding path program 1 times [2023-11-06 22:42:18,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:18,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337493286] [2023-11-06 22:42:18,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:18,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:18,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:18,950 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 22:42:18,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:42:18,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337493286] [2023-11-06 22:42:18,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337493286] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:42:18,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:42:18,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:42:18,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609985818] [2023-11-06 22:42:18,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:42:18,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:42:18,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:42:18,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:42:18,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:42:18,992 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 419 [2023-11-06 22:42:18,995 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 39 transitions, 82 flow. Second operand has 2 states, 2 states have (on average 130.0) internal successors, (260), 2 states have internal predecessors, (260), 0 states have call successors, (0), 0 states 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 22:42:18,995 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:42:18,996 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 419 [2023-11-06 22:42:18,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:42:19,024 INFO L124 PetriNetUnfolderBase]: 2/12 cut-off events. [2023-11-06 22:42:19,024 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:42:19,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 12 events. 2/12 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 2 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 14. Up to 11 conditions per place. [2023-11-06 22:42:19,026 INFO L140 encePairwiseOnDemand]: 386/419 looper letters, 5 selfloop transitions, 0 changer transitions 0/6 dead transitions. [2023-11-06 22:42:19,026 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 6 transitions, 26 flow [2023-11-06 22:42:19,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:42:19,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:42:19,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 294 transitions. [2023-11-06 22:42:19,044 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35083532219570407 [2023-11-06 22:42:19,045 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 294 transitions. [2023-11-06 22:42:19,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 294 transitions. [2023-11-06 22:42:19,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:42:19,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 294 transitions. [2023-11-06 22:42:19,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 147.0) internal successors, (294), 2 states have internal predecessors, (294), 0 states have call successors, (0), 0 states 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 22:42:19,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 419.0) internal successors, (1257), 3 states have internal predecessors, (1257), 0 states have call successors, (0), 0 states 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 22:42:19,063 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 419.0) internal successors, (1257), 3 states have internal predecessors, (1257), 0 states have call successors, (0), 0 states 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 22:42:19,065 INFO L175 Difference]: Start difference. First operand has 42 places, 39 transitions, 82 flow. Second operand 2 states and 294 transitions. [2023-11-06 22:42:19,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 6 transitions, 26 flow [2023-11-06 22:42:19,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 6 transitions, 26 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:42:19,069 INFO L231 Difference]: Finished difference. Result has 10 places, 6 transitions, 16 flow [2023-11-06 22:42:19,071 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=419, PETRI_DIFFERENCE_MINUEND_FLOW=16, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=16, PETRI_PLACES=10, PETRI_TRANSITIONS=6} [2023-11-06 22:42:19,075 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -32 predicate places. [2023-11-06 22:42:19,076 INFO L495 AbstractCegarLoop]: Abstraction has has 10 places, 6 transitions, 16 flow [2023-11-06 22:42:19,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 130.0) internal successors, (260), 2 states have internal predecessors, (260), 0 states have call successors, (0), 0 states 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 22:42:19,076 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:42:19,077 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-06 22:42:19,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:42:19,077 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-06 22:42:19,078 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:19,078 INFO L85 PathProgramCache]: Analyzing trace with hash -740261137, now seen corresponding path program 1 times [2023-11-06 22:42:19,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:19,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313112496] [2023-11-06 22:42:19,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:19,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:19,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:19,104 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:42:19,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:19,138 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:42:19,138 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:42:19,140 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (64 of 65 remaining) [2023-11-06 22:42:19,142 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (63 of 65 remaining) [2023-11-06 22:42:19,143 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (62 of 65 remaining) [2023-11-06 22:42:19,143 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (61 of 65 remaining) [2023-11-06 22:42:19,143 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (60 of 65 remaining) [2023-11-06 22:42:19,144 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (59 of 65 remaining) [2023-11-06 22:42:19,144 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (58 of 65 remaining) [2023-11-06 22:42:19,144 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (57 of 65 remaining) [2023-11-06 22:42:19,144 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (56 of 65 remaining) [2023-11-06 22:42:19,145 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (55 of 65 remaining) [2023-11-06 22:42:19,145 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (54 of 65 remaining) [2023-11-06 22:42:19,145 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (53 of 65 remaining) [2023-11-06 22:42:19,146 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (52 of 65 remaining) [2023-11-06 22:42:19,146 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (51 of 65 remaining) [2023-11-06 22:42:19,146 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (50 of 65 remaining) [2023-11-06 22:42:19,147 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (49 of 65 remaining) [2023-11-06 22:42:19,147 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (48 of 65 remaining) [2023-11-06 22:42:19,147 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (47 of 65 remaining) [2023-11-06 22:42:19,147 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (46 of 65 remaining) [2023-11-06 22:42:19,148 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (45 of 65 remaining) [2023-11-06 22:42:19,148 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (44 of 65 remaining) [2023-11-06 22:42:19,148 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (43 of 65 remaining) [2023-11-06 22:42:19,149 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (42 of 65 remaining) [2023-11-06 22:42:19,149 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONDATA_RACE (41 of 65 remaining) [2023-11-06 22:42:19,149 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONDATA_RACE (40 of 65 remaining) [2023-11-06 22:42:19,150 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 65 remaining) [2023-11-06 22:42:19,150 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONDATA_RACE (38 of 65 remaining) [2023-11-06 22:42:19,150 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (37 of 65 remaining) [2023-11-06 22:42:19,150 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONDATA_RACE (36 of 65 remaining) [2023-11-06 22:42:19,151 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (35 of 65 remaining) [2023-11-06 22:42:19,151 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (34 of 65 remaining) [2023-11-06 22:42:19,151 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONDATA_RACE (33 of 65 remaining) [2023-11-06 22:42:19,152 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONDATA_RACE (32 of 65 remaining) [2023-11-06 22:42:19,152 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 65 remaining) [2023-11-06 22:42:19,152 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 65 remaining) [2023-11-06 22:42:19,152 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (29 of 65 remaining) [2023-11-06 22:42:19,153 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (28 of 65 remaining) [2023-11-06 22:42:19,153 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 65 remaining) [2023-11-06 22:42:19,153 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (26 of 65 remaining) [2023-11-06 22:42:19,154 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (25 of 65 remaining) [2023-11-06 22:42:19,154 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (24 of 65 remaining) [2023-11-06 22:42:19,154 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (23 of 65 remaining) [2023-11-06 22:42:19,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (22 of 65 remaining) [2023-11-06 22:42:19,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (21 of 65 remaining) [2023-11-06 22:42:19,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (20 of 65 remaining) [2023-11-06 22:42:19,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 65 remaining) [2023-11-06 22:42:19,156 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (18 of 65 remaining) [2023-11-06 22:42:19,156 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 65 remaining) [2023-11-06 22:42:19,156 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (16 of 65 remaining) [2023-11-06 22:42:19,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (15 of 65 remaining) [2023-11-06 22:42:19,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (14 of 65 remaining) [2023-11-06 22:42:19,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (13 of 65 remaining) [2023-11-06 22:42:19,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (12 of 65 remaining) [2023-11-06 22:42:19,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (11 of 65 remaining) [2023-11-06 22:42:19,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (10 of 65 remaining) [2023-11-06 22:42:19,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONDATA_RACE (9 of 65 remaining) [2023-11-06 22:42:19,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONDATA_RACE (8 of 65 remaining) [2023-11-06 22:42:19,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (7 of 65 remaining) [2023-11-06 22:42:19,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONDATA_RACE (6 of 65 remaining) [2023-11-06 22:42:19,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (5 of 65 remaining) [2023-11-06 22:42:19,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONDATA_RACE (4 of 65 remaining) [2023-11-06 22:42:19,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 65 remaining) [2023-11-06 22:42:19,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (2 of 65 remaining) [2023-11-06 22:42:19,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONDATA_RACE (1 of 65 remaining) [2023-11-06 22:42:19,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONDATA_RACE (0 of 65 remaining) [2023-11-06 22:42:19,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:42:19,162 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-06 22:42:19,164 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-06 22:42:19,165 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-06 22:42:19,218 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 22:42:19,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 293 places, 307 transitions, 624 flow [2023-11-06 22:42:19,320 INFO L124 PetriNetUnfolderBase]: 21/331 cut-off events. [2023-11-06 22:42:19,320 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:42:19,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 331 events. 21/331 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1345 event pairs, 0 based on Foata normal form. 0/243 useless extension candidates. Maximal degree in co-relation 291. Up to 6 conditions per place. [2023-11-06 22:42:19,332 INFO L82 GeneralOperation]: Start removeDead. Operand has 293 places, 307 transitions, 624 flow [2023-11-06 22:42:19,340 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 293 places, 307 transitions, 624 flow [2023-11-06 22:42:19,340 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:42:19,341 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 293 places, 307 transitions, 624 flow [2023-11-06 22:42:19,341 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 293 places, 307 transitions, 624 flow [2023-11-06 22:42:19,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 293 places, 307 transitions, 624 flow [2023-11-06 22:42:19,418 INFO L124 PetriNetUnfolderBase]: 21/331 cut-off events. [2023-11-06 22:42:19,418 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:42:19,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 331 events. 21/331 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1345 event pairs, 0 based on Foata normal form. 0/243 useless extension candidates. Maximal degree in co-relation 291. Up to 6 conditions per place. [2023-11-06 22:42:19,455 INFO L119 LiptonReduction]: Number of co-enabled transitions 46704 [2023-11-06 22:42:24,016 INFO L134 LiptonReduction]: Checked pairs total: 224242 [2023-11-06 22:42:24,016 INFO L136 LiptonReduction]: Total number of compositions: 231 [2023-11-06 22:42:24,020 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:42:24,026 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;@4adeed12, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:42:24,026 INFO L358 AbstractCegarLoop]: Starting to check reachability of 97 error locations. [2023-11-06 22:42:24,029 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:42:24,029 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-11-06 22:42:24,029 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:42:24,029 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:42:24,030 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-06 22:42:24,030 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err16ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-11-06 22:42:24,035 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:24,035 INFO L85 PathProgramCache]: Analyzing trace with hash 57187136, now seen corresponding path program 1 times [2023-11-06 22:42:24,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:24,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984479112] [2023-11-06 22:42:24,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:24,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:24,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:24,106 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 22:42:24,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:42:24,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984479112] [2023-11-06 22:42:24,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984479112] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:42:24,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:42:24,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:42:24,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132176934] [2023-11-06 22:42:24,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:42:24,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:42:24,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:42:24,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:42:24,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:42:24,111 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 538 [2023-11-06 22:42:24,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 172 transitions, 354 flow. Second operand has 2 states, 2 states have (on average 233.0) internal successors, (466), 2 states have internal predecessors, (466), 0 states have call successors, (0), 0 states 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 22:42:24,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:42:24,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 538 [2023-11-06 22:42:24,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:42:24,593 INFO L124 PetriNetUnfolderBase]: 1429/3494 cut-off events. [2023-11-06 22:42:24,593 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2023-11-06 22:42:24,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5741 conditions, 3494 events. 1429/3494 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 28411 event pairs, 1039 based on Foata normal form. 270/3067 useless extension candidates. Maximal degree in co-relation 2031. Up to 2188 conditions per place. [2023-11-06 22:42:24,624 INFO L140 encePairwiseOnDemand]: 497/538 looper letters, 50 selfloop transitions, 0 changer transitions 0/131 dead transitions. [2023-11-06 22:42:24,624 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 131 transitions, 372 flow [2023-11-06 22:42:24,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:42:24,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:42:24,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 553 transitions. [2023-11-06 22:42:24,632 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5139405204460966 [2023-11-06 22:42:24,632 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 553 transitions. [2023-11-06 22:42:24,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 553 transitions. [2023-11-06 22:42:24,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:42:24,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 553 transitions. [2023-11-06 22:42:24,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 276.5) internal successors, (553), 2 states have internal predecessors, (553), 0 states have call successors, (0), 0 states 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 22:42:24,642 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 538.0) internal successors, (1614), 3 states have internal predecessors, (1614), 0 states have call successors, (0), 0 states 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 22:42:24,644 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 538.0) internal successors, (1614), 3 states have internal predecessors, (1614), 0 states have call successors, (0), 0 states 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 22:42:24,644 INFO L175 Difference]: Start difference. First operand has 167 places, 172 transitions, 354 flow. Second operand 2 states and 553 transitions. [2023-11-06 22:42:24,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 131 transitions, 372 flow [2023-11-06 22:42:24,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 131 transitions, 372 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:42:24,650 INFO L231 Difference]: Finished difference. Result has 127 places, 131 transitions, 272 flow [2023-11-06 22:42:24,651 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=538, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=272, PETRI_PLACES=127, PETRI_TRANSITIONS=131} [2023-11-06 22:42:24,652 INFO L281 CegarLoopForPetriNet]: 167 programPoint places, -40 predicate places. [2023-11-06 22:42:24,652 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 131 transitions, 272 flow [2023-11-06 22:42:24,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 233.0) internal successors, (466), 2 states have internal predecessors, (466), 0 states have call successors, (0), 0 states 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 22:42:24,653 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:42:24,653 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:42:24,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:42:24,654 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-11-06 22:42:24,654 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:24,654 INFO L85 PathProgramCache]: Analyzing trace with hash -877688413, now seen corresponding path program 1 times [2023-11-06 22:42:24,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:24,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063046908] [2023-11-06 22:42:24,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:24,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:24,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:24,735 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 22:42:24,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:42:24,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063046908] [2023-11-06 22:42:24,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063046908] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:42:24,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:42:24,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:42:24,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001708113] [2023-11-06 22:42:24,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:42:24,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:42:24,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:42:24,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:42:24,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:42:24,826 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 538 [2023-11-06 22:42:24,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 131 transitions, 272 flow. Second operand has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 0 states have call successors, (0), 0 states 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 22:42:24,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:42:24,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 538 [2023-11-06 22:42:24,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:42:26,339 INFO L124 PetriNetUnfolderBase]: 5720/11099 cut-off events. [2023-11-06 22:42:26,340 INFO L125 PetriNetUnfolderBase]: For 104/104 co-relation queries the response was YES. [2023-11-06 22:42:26,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20435 conditions, 11099 events. 5720/11099 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 563. Compared 94822 event pairs, 1906 based on Foata normal form. 0/9680 useless extension candidates. Maximal degree in co-relation 20430. Up to 5670 conditions per place. [2023-11-06 22:42:26,437 INFO L140 encePairwiseOnDemand]: 498/538 looper letters, 134 selfloop transitions, 28 changer transitions 0/205 dead transitions. [2023-11-06 22:42:26,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 205 transitions, 749 flow [2023-11-06 22:42:26,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:42:26,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:42:26,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 747 transitions. [2023-11-06 22:42:26,441 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4628252788104089 [2023-11-06 22:42:26,441 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 747 transitions. [2023-11-06 22:42:26,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 747 transitions. [2023-11-06 22:42:26,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:42:26,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 747 transitions. [2023-11-06 22:42:26,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 0 states have call successors, (0), 0 states 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 22:42:26,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 538.0) internal successors, (2152), 4 states have internal predecessors, (2152), 0 states have call successors, (0), 0 states 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 22:42:26,452 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 538.0) internal successors, (2152), 4 states have internal predecessors, (2152), 0 states have call successors, (0), 0 states 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 22:42:26,452 INFO L175 Difference]: Start difference. First operand has 127 places, 131 transitions, 272 flow. Second operand 3 states and 747 transitions. [2023-11-06 22:42:26,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 205 transitions, 749 flow [2023-11-06 22:42:26,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 205 transitions, 749 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:42:26,462 INFO L231 Difference]: Finished difference. Result has 131 places, 159 transitions, 520 flow [2023-11-06 22:42:26,462 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=538, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=520, PETRI_PLACES=131, PETRI_TRANSITIONS=159} [2023-11-06 22:42:26,465 INFO L281 CegarLoopForPetriNet]: 167 programPoint places, -36 predicate places. [2023-11-06 22:42:26,465 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 159 transitions, 520 flow [2023-11-06 22:42:26,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 0 states have call successors, (0), 0 states 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 22:42:26,466 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:42:26,466 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-11-06 22:42:26,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:42:26,467 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-11-06 22:42:26,467 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:26,467 INFO L85 PathProgramCache]: Analyzing trace with hash -392268410, now seen corresponding path program 1 times [2023-11-06 22:42:26,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:26,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921183403] [2023-11-06 22:42:26,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:26,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:26,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:26,508 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:42:26,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:42:26,537 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:42:26,542 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:42:26,543 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (96 of 97 remaining) [2023-11-06 22:42:26,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (95 of 97 remaining) [2023-11-06 22:42:26,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (94 of 97 remaining) [2023-11-06 22:42:26,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (93 of 97 remaining) [2023-11-06 22:42:26,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (92 of 97 remaining) [2023-11-06 22:42:26,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (91 of 97 remaining) [2023-11-06 22:42:26,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (90 of 97 remaining) [2023-11-06 22:42:26,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (89 of 97 remaining) [2023-11-06 22:42:26,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (88 of 97 remaining) [2023-11-06 22:42:26,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (87 of 97 remaining) [2023-11-06 22:42:26,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (86 of 97 remaining) [2023-11-06 22:42:26,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (85 of 97 remaining) [2023-11-06 22:42:26,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (84 of 97 remaining) [2023-11-06 22:42:26,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (83 of 97 remaining) [2023-11-06 22:42:26,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (82 of 97 remaining) [2023-11-06 22:42:26,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (81 of 97 remaining) [2023-11-06 22:42:26,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (80 of 97 remaining) [2023-11-06 22:42:26,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (79 of 97 remaining) [2023-11-06 22:42:26,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (78 of 97 remaining) [2023-11-06 22:42:26,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (77 of 97 remaining) [2023-11-06 22:42:26,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (76 of 97 remaining) [2023-11-06 22:42:26,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (75 of 97 remaining) [2023-11-06 22:42:26,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (74 of 97 remaining) [2023-11-06 22:42:26,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONDATA_RACE (73 of 97 remaining) [2023-11-06 22:42:26,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONDATA_RACE (72 of 97 remaining) [2023-11-06 22:42:26,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (71 of 97 remaining) [2023-11-06 22:42:26,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONDATA_RACE (70 of 97 remaining) [2023-11-06 22:42:26,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (69 of 97 remaining) [2023-11-06 22:42:26,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONDATA_RACE (68 of 97 remaining) [2023-11-06 22:42:26,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (67 of 97 remaining) [2023-11-06 22:42:26,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (66 of 97 remaining) [2023-11-06 22:42:26,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONDATA_RACE (65 of 97 remaining) [2023-11-06 22:42:26,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONDATA_RACE (64 of 97 remaining) [2023-11-06 22:42:26,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (63 of 97 remaining) [2023-11-06 22:42:26,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (62 of 97 remaining) [2023-11-06 22:42:26,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (61 of 97 remaining) [2023-11-06 22:42:26,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (60 of 97 remaining) [2023-11-06 22:42:26,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (59 of 97 remaining) [2023-11-06 22:42:26,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (58 of 97 remaining) [2023-11-06 22:42:26,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (57 of 97 remaining) [2023-11-06 22:42:26,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (56 of 97 remaining) [2023-11-06 22:42:26,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (55 of 97 remaining) [2023-11-06 22:42:26,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (54 of 97 remaining) [2023-11-06 22:42:26,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (53 of 97 remaining) [2023-11-06 22:42:26,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (52 of 97 remaining) [2023-11-06 22:42:26,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (51 of 97 remaining) [2023-11-06 22:42:26,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (50 of 97 remaining) [2023-11-06 22:42:26,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (49 of 97 remaining) [2023-11-06 22:42:26,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (48 of 97 remaining) [2023-11-06 22:42:26,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (47 of 97 remaining) [2023-11-06 22:42:26,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (46 of 97 remaining) [2023-11-06 22:42:26,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (45 of 97 remaining) [2023-11-06 22:42:26,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (44 of 97 remaining) [2023-11-06 22:42:26,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (43 of 97 remaining) [2023-11-06 22:42:26,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (42 of 97 remaining) [2023-11-06 22:42:26,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONDATA_RACE (41 of 97 remaining) [2023-11-06 22:42:26,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONDATA_RACE (40 of 97 remaining) [2023-11-06 22:42:26,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 97 remaining) [2023-11-06 22:42:26,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONDATA_RACE (38 of 97 remaining) [2023-11-06 22:42:26,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (37 of 97 remaining) [2023-11-06 22:42:26,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONDATA_RACE (36 of 97 remaining) [2023-11-06 22:42:26,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (35 of 97 remaining) [2023-11-06 22:42:26,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (34 of 97 remaining) [2023-11-06 22:42:26,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONDATA_RACE (33 of 97 remaining) [2023-11-06 22:42:26,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONDATA_RACE (32 of 97 remaining) [2023-11-06 22:42:26,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 97 remaining) [2023-11-06 22:42:26,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 97 remaining) [2023-11-06 22:42:26,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (29 of 97 remaining) [2023-11-06 22:42:26,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (28 of 97 remaining) [2023-11-06 22:42:26,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 97 remaining) [2023-11-06 22:42:26,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (26 of 97 remaining) [2023-11-06 22:42:26,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (25 of 97 remaining) [2023-11-06 22:42:26,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (24 of 97 remaining) [2023-11-06 22:42:26,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (23 of 97 remaining) [2023-11-06 22:42:26,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (22 of 97 remaining) [2023-11-06 22:42:26,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (21 of 97 remaining) [2023-11-06 22:42:26,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (20 of 97 remaining) [2023-11-06 22:42:26,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 97 remaining) [2023-11-06 22:42:26,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (18 of 97 remaining) [2023-11-06 22:42:26,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 97 remaining) [2023-11-06 22:42:26,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (16 of 97 remaining) [2023-11-06 22:42:26,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (15 of 97 remaining) [2023-11-06 22:42:26,565 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (14 of 97 remaining) [2023-11-06 22:42:26,565 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (13 of 97 remaining) [2023-11-06 22:42:26,567 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (12 of 97 remaining) [2023-11-06 22:42:26,568 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (11 of 97 remaining) [2023-11-06 22:42:26,568 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (10 of 97 remaining) [2023-11-06 22:42:26,568 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONDATA_RACE (9 of 97 remaining) [2023-11-06 22:42:26,570 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONDATA_RACE (8 of 97 remaining) [2023-11-06 22:42:26,570 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (7 of 97 remaining) [2023-11-06 22:42:26,570 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONDATA_RACE (6 of 97 remaining) [2023-11-06 22:42:26,571 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (5 of 97 remaining) [2023-11-06 22:42:26,571 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONDATA_RACE (4 of 97 remaining) [2023-11-06 22:42:26,571 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 97 remaining) [2023-11-06 22:42:26,571 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (2 of 97 remaining) [2023-11-06 22:42:26,619 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONDATA_RACE (1 of 97 remaining) [2023-11-06 22:42:26,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONDATA_RACE (0 of 97 remaining) [2023-11-06 22:42:26,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:42:26,620 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-06 22:42:26,621 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-06 22:42:26,621 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-06 22:42:26,690 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 22:42:26,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 426 places, 447 transitions, 912 flow [2023-11-06 22:42:26,849 INFO L124 PetriNetUnfolderBase]: 31/484 cut-off events. [2023-11-06 22:42:26,849 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-06 22:42:26,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 497 conditions, 484 events. 31/484 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2378 event pairs, 0 based on Foata normal form. 0/353 useless extension candidates. Maximal degree in co-relation 430. Up to 8 conditions per place. [2023-11-06 22:42:26,858 INFO L82 GeneralOperation]: Start removeDead. Operand has 426 places, 447 transitions, 912 flow [2023-11-06 22:42:26,872 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 426 places, 447 transitions, 912 flow [2023-11-06 22:42:26,872 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:42:26,872 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 426 places, 447 transitions, 912 flow [2023-11-06 22:42:26,873 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 426 places, 447 transitions, 912 flow [2023-11-06 22:42:26,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 426 places, 447 transitions, 912 flow [2023-11-06 22:42:27,022 INFO L124 PetriNetUnfolderBase]: 31/484 cut-off events. [2023-11-06 22:42:27,023 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-06 22:42:27,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 497 conditions, 484 events. 31/484 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2378 event pairs, 0 based on Foata normal form. 0/353 useless extension candidates. Maximal degree in co-relation 430. Up to 8 conditions per place. [2023-11-06 22:42:27,072 INFO L119 LiptonReduction]: Number of co-enabled transitions 128436 [2023-11-06 22:42:33,664 INFO L134 LiptonReduction]: Checked pairs total: 646920 [2023-11-06 22:42:33,665 INFO L136 LiptonReduction]: Total number of compositions: 329 [2023-11-06 22:42:33,667 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:42:33,668 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;@4adeed12, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:42:33,668 INFO L358 AbstractCegarLoop]: Starting to check reachability of 129 error locations. [2023-11-06 22:42:33,670 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:42:33,670 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-11-06 22:42:33,670 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:42:33,671 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:42:33,671 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-06 22:42:33,671 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 125 more)] === [2023-11-06 22:42:33,672 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:33,672 INFO L85 PathProgramCache]: Analyzing trace with hash 85417773, now seen corresponding path program 1 times [2023-11-06 22:42:33,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:33,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001409593] [2023-11-06 22:42:33,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:33,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:33,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:33,710 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 22:42:33,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:42:33,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001409593] [2023-11-06 22:42:33,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001409593] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:42:33,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:42:33,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:42:33,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951671056] [2023-11-06 22:42:33,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:42:33,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:42:33,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:42:33,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:42:33,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:42:33,718 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 776 [2023-11-06 22:42:33,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 255 transitions, 528 flow. Second operand has 2 states, 2 states have (on average 336.0) internal successors, (672), 2 states have internal predecessors, (672), 0 states have call successors, (0), 0 states 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 22:42:33,720 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:42:33,720 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 776 [2023-11-06 22:42:33,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:42:44,123 INFO L124 PetriNetUnfolderBase]: 46863/83664 cut-off events. [2023-11-06 22:42:44,124 INFO L125 PetriNetUnfolderBase]: For 2347/2347 co-relation queries the response was YES. [2023-11-06 22:42:44,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147237 conditions, 83664 events. 46863/83664 cut-off events. For 2347/2347 co-relation queries the response was YES. Maximal size of possible extension queue 3310. Compared 859779 event pairs, 35263 based on Foata normal form. 6960/76373 useless extension candidates. Maximal degree in co-relation 23562. Up to 62066 conditions per place. [2023-11-06 22:42:44,922 INFO L140 encePairwiseOnDemand]: 715/776 looper letters, 75 selfloop transitions, 0 changer transitions 0/194 dead transitions. [2023-11-06 22:42:44,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 194 transitions, 556 flow [2023-11-06 22:42:44,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:42:44,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:42:44,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 804 transitions. [2023-11-06 22:42:44,926 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5180412371134021 [2023-11-06 22:42:44,927 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 804 transitions. [2023-11-06 22:42:44,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 804 transitions. [2023-11-06 22:42:44,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:42:44,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 804 transitions. [2023-11-06 22:42:44,930 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 402.0) internal successors, (804), 2 states have internal predecessors, (804), 0 states have call successors, (0), 0 states 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 22:42:44,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 776.0) internal successors, (2328), 3 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 22:42:44,937 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 776.0) internal successors, (2328), 3 states have internal predecessors, (2328), 0 states have call successors, (0), 0 states 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 22:42:44,938 INFO L175 Difference]: Start difference. First operand has 247 places, 255 transitions, 528 flow. Second operand 2 states and 804 transitions. [2023-11-06 22:42:44,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 194 transitions, 556 flow [2023-11-06 22:42:44,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 194 transitions, 554 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-11-06 22:42:44,952 INFO L231 Difference]: Finished difference. Result has 187 places, 194 transitions, 404 flow [2023-11-06 22:42:44,953 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=776, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=404, PETRI_PLACES=187, PETRI_TRANSITIONS=194} [2023-11-06 22:42:44,956 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, -60 predicate places. [2023-11-06 22:42:44,957 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 194 transitions, 404 flow [2023-11-06 22:42:44,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 336.0) internal successors, (672), 2 states have internal predecessors, (672), 0 states have call successors, (0), 0 states 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 22:42:44,957 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:42:44,958 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:42:44,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:42:44,958 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err18ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 125 more)] === [2023-11-06 22:42:44,959 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:44,959 INFO L85 PathProgramCache]: Analyzing trace with hash 482175541, now seen corresponding path program 1 times [2023-11-06 22:42:44,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:44,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833322713] [2023-11-06 22:42:44,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:44,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:44,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:45,006 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 22:42:45,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:42:45,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833322713] [2023-11-06 22:42:45,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833322713] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:42:45,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:42:45,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:42:45,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041425645] [2023-11-06 22:42:45,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:42:45,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:42:45,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:42:45,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:42:45,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:42:45,104 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 776 [2023-11-06 22:42:45,106 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 194 transitions, 404 flow. Second operand has 3 states, 3 states have (on average 276.0) internal successors, (828), 3 states have internal predecessors, (828), 0 states have call successors, (0), 0 states 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 22:42:45,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:42:45,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 776 [2023-11-06 22:42:45,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand