./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/04_incdec_cas.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_3b300979-dbcd-4d98-a2f4-5d5b38219596/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b300979-dbcd-4d98-a2f4-5d5b38219596/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_3b300979-dbcd-4d98-a2f4-5d5b38219596/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b300979-dbcd-4d98-a2f4-5d5b38219596/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/04_incdec_cas.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b300979-dbcd-4d98-a2f4-5d5b38219596/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_3b300979-dbcd-4d98-a2f4-5d5b38219596/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 a025fe4ca65874bde9a09e6a2d9fa9eceda581ed1bc5b23e0ff5285795ed115b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:09:10,083 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:09:10,201 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b300979-dbcd-4d98-a2f4-5d5b38219596/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 23:09:10,209 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:09:10,210 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:09:10,247 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:09:10,248 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:09:10,249 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:09:10,250 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:09:10,255 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:09:10,257 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:09:10,257 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:09:10,258 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:09:10,259 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:09:10,260 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:09:10,260 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:09:10,261 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:09:10,261 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:09:10,262 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:09:10,262 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:09:10,262 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:09:10,263 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:09:10,263 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 23:09:10,264 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 23:09:10,264 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:09:10,265 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:09:10,265 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:09:10,266 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:09:10,266 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:09:10,267 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:09:10,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:09:10,268 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:09:10,268 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:09:10,269 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:09:10,269 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:09:10,269 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:09:10,269 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:09:10,270 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:09:10,270 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:09:10,270 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:09:10,271 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:09:10,271 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_3b300979-dbcd-4d98-a2f4-5d5b38219596/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b300979-dbcd-4d98-a2f4-5d5b38219596/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a025fe4ca65874bde9a09e6a2d9fa9eceda581ed1bc5b23e0ff5285795ed115b [2023-11-06 23:09:10,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:09:10,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:09:10,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:09:10,547 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:09:10,548 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:09:10,549 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b300979-dbcd-4d98-a2f4-5d5b38219596/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-ext/04_incdec_cas.i [2023-11-06 23:09:13,670 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:09:14,077 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:09:14,078 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b300979-dbcd-4d98-a2f4-5d5b38219596/sv-benchmarks/c/pthread-ext/04_incdec_cas.i [2023-11-06 23:09:14,108 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b300979-dbcd-4d98-a2f4-5d5b38219596/bin/uautomizer-verify-WvqO1wxjHP/data/95cc078ee/36eb1d50e3a14abb999d92f2fb6ede49/FLAGb49da687a [2023-11-06 23:09:14,128 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b300979-dbcd-4d98-a2f4-5d5b38219596/bin/uautomizer-verify-WvqO1wxjHP/data/95cc078ee/36eb1d50e3a14abb999d92f2fb6ede49 [2023-11-06 23:09:14,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:09:14,136 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:09:14,139 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:09:14,140 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:09:14,145 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:09:14,146 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:09:14" (1/1) ... [2023-11-06 23:09:14,147 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5241f4ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:14, skipping insertion in model container [2023-11-06 23:09:14,147 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:09:14" (1/1) ... [2023-11-06 23:09:14,218 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:09:14,641 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:09:14,658 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:09:14,712 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:09:14,766 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:09:14,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:14 WrapperNode [2023-11-06 23:09:14,767 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:09:14,769 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:09:14,769 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:09:14,769 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:09:14,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:14" (1/1) ... [2023-11-06 23:09:14,799 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:14" (1/1) ... [2023-11-06 23:09:14,842 INFO L138 Inliner]: procedures = 172, calls = 45, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 270 [2023-11-06 23:09:14,842 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:09:14,843 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:09:14,843 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:09:14,844 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:09:14,854 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:14" (1/1) ... [2023-11-06 23:09:14,856 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:14" (1/1) ... [2023-11-06 23:09:14,863 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:14" (1/1) ... [2023-11-06 23:09:14,871 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:14" (1/1) ... [2023-11-06 23:09:14,898 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:14" (1/1) ... [2023-11-06 23:09:14,905 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:14" (1/1) ... [2023-11-06 23:09:14,909 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:14" (1/1) ... [2023-11-06 23:09:14,911 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:14" (1/1) ... [2023-11-06 23:09:14,928 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:09:14,929 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:09:14,929 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:09:14,940 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:09:14,941 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:14" (1/1) ... [2023-11-06 23:09:14,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:09:14,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b300979-dbcd-4d98-a2f4-5d5b38219596/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:09:14,979 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b300979-dbcd-4d98-a2f4-5d5b38219596/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:09:14,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b300979-dbcd-4d98-a2f4-5d5b38219596/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:09:15,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 23:09:15,031 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-06 23:09:15,031 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-06 23:09:15,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 23:09:15,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:09:15,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 23:09:15,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 23:09:15,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 23:09:15,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:09:15,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:09:15,034 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 23:09:15,263 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:09:15,265 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:09:15,852 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:09:16,455 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:09:16,455 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-06 23:09:16,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:09:16 BoogieIcfgContainer [2023-11-06 23:09:16,459 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:09:16,462 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:09:16,462 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:09:16,465 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:09:16,466 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:09:14" (1/3) ... [2023-11-06 23:09:16,467 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3395af69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:09:16, skipping insertion in model container [2023-11-06 23:09:16,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:14" (2/3) ... [2023-11-06 23:09:16,470 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3395af69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:09:16, skipping insertion in model container [2023-11-06 23:09:16,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:09:16" (3/3) ... [2023-11-06 23:09:16,472 INFO L112 eAbstractionObserver]: Analyzing ICFG 04_incdec_cas.i [2023-11-06 23:09:16,482 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 23:09:16,494 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:09:16,494 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-11-06 23:09:16,494 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 23:09:16,679 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 23:09:16,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 136 transitions, 276 flow [2023-11-06 23:09:16,860 INFO L124 PetriNetUnfolderBase]: 9/147 cut-off events. [2023-11-06 23:09:16,861 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:09:16,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 147 events. 9/147 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 335 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 116. Up to 4 conditions per place. [2023-11-06 23:09:16,870 INFO L82 GeneralOperation]: Start removeDead. Operand has 131 places, 136 transitions, 276 flow [2023-11-06 23:09:16,879 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 136 transitions, 276 flow [2023-11-06 23:09:16,883 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 23:09:16,901 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 136 transitions, 276 flow [2023-11-06 23:09:16,910 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 136 transitions, 276 flow [2023-11-06 23:09:16,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 136 transitions, 276 flow [2023-11-06 23:09:16,976 INFO L124 PetriNetUnfolderBase]: 9/147 cut-off events. [2023-11-06 23:09:16,976 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:09:16,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 147 events. 9/147 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 335 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 116. Up to 4 conditions per place. [2023-11-06 23:09:16,983 INFO L119 LiptonReduction]: Number of co-enabled transitions 2884 [2023-11-06 23:09:28,888 WARN L293 SmtUtils]: Spent 6.10s on a formula simplification. DAG size of input: 105 DAG size of output: 92 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:09:40,124 WARN L293 SmtUtils]: Spent 8.66s on a formula simplification. DAG size of input: 108 DAG size of output: 96 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:10:05,854 WARN L293 SmtUtils]: Spent 5.83s on a formula simplification. DAG size of input: 108 DAG size of output: 95 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:10:18,025 WARN L293 SmtUtils]: Spent 8.87s on a formula simplification. DAG size of input: 121 DAG size of output: 102 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:10:23,085 WARN L293 SmtUtils]: Spent 5.06s on a formula simplification that was a NOOP. DAG size: 102 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:10:28,228 WARN L293 SmtUtils]: Spent 5.02s on a formula simplification that was a NOOP. DAG size: 104 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:10:33,279 WARN L293 SmtUtils]: Spent 5.05s on a formula simplification that was a NOOP. DAG size: 104 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:10:40,510 WARN L293 SmtUtils]: Spent 7.23s on a formula simplification that was a NOOP. DAG size: 108 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:10:47,514 WARN L293 SmtUtils]: Spent 7.00s on a formula simplification that was a NOOP. DAG size: 108 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:10:49,588 INFO L134 LiptonReduction]: Checked pairs total: 3685 [2023-11-06 23:10:49,589 INFO L136 LiptonReduction]: Total number of compositions: 142 [2023-11-06 23:10:49,605 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:10:49,632 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;@7ba51a7d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:10:49,633 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2023-11-06 23:10:49,639 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 23:10:49,639 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2023-11-06 23:10:49,639 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:10:49,640 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:10:49,640 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 23:10:49,641 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err10ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-06 23:10:49,647 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:10:49,647 INFO L85 PathProgramCache]: Analyzing trace with hash 943910993, now seen corresponding path program 1 times [2023-11-06 23:10:49,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:10:49,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208490140] [2023-11-06 23:10:49,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:49,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:10:49,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:49,893 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 23:10:49,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:10:49,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208490140] [2023-11-06 23:10:49,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208490140] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:10:49,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:10:49,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 23:10:49,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302737953] [2023-11-06 23:10:49,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:10:49,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 23:10:49,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:10:49,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 23:10:49,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 23:10:49,934 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 278 [2023-11-06 23:10:49,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 43 transitions, 90 flow. Second operand has 2 states, 2 states have (on average 115.5) internal successors, (231), 2 states have internal predecessors, (231), 0 states have call successors, (0), 0 states 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 23:10:49,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:10:49,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 278 [2023-11-06 23:10:49,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:10:50,395 INFO L124 PetriNetUnfolderBase]: 39/81 cut-off events. [2023-11-06 23:10:50,395 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:10:50,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 81 events. 39/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 207 event pairs, 24 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 154. Up to 81 conditions per place. [2023-11-06 23:10:50,397 INFO L140 encePairwiseOnDemand]: 257/278 looper letters, 21 selfloop transitions, 0 changer transitions 0/22 dead transitions. [2023-11-06 23:10:50,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 22 transitions, 90 flow [2023-11-06 23:10:50,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 23:10:50,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 23:10:50,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 268 transitions. [2023-11-06 23:10:50,430 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48201438848920863 [2023-11-06 23:10:50,431 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 268 transitions. [2023-11-06 23:10:50,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 268 transitions. [2023-11-06 23:10:50,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:10:50,435 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 268 transitions. [2023-11-06 23:10:50,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 134.0) internal successors, (268), 2 states have internal predecessors, (268), 0 states have call successors, (0), 0 states 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 23:10:50,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 278.0) internal successors, (834), 3 states have internal predecessors, (834), 0 states have call successors, (0), 0 states 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 23:10:50,444 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 278.0) internal successors, (834), 3 states have internal predecessors, (834), 0 states have call successors, (0), 0 states 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 23:10:50,446 INFO L175 Difference]: Start difference. First operand has 39 places, 43 transitions, 90 flow. Second operand 2 states and 268 transitions. [2023-11-06 23:10:50,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 22 transitions, 90 flow [2023-11-06 23:10:50,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 22 transitions, 90 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 23:10:50,451 INFO L231 Difference]: Finished difference. Result has 21 places, 22 transitions, 48 flow [2023-11-06 23:10:50,453 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=48, PETRI_PLACES=21, PETRI_TRANSITIONS=22} [2023-11-06 23:10:50,457 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -18 predicate places. [2023-11-06 23:10:50,458 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 22 transitions, 48 flow [2023-11-06 23:10:50,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 115.5) internal successors, (231), 2 states have internal predecessors, (231), 0 states have call successors, (0), 0 states 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 23:10:50,458 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:10:50,459 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-06 23:10:50,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 23:10:50,459 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-06 23:10:50,460 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:10:50,460 INFO L85 PathProgramCache]: Analyzing trace with hash -803621262, now seen corresponding path program 1 times [2023-11-06 23:10:50,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:10:50,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362585863] [2023-11-06 23:10:50,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:50,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:10:50,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:10:50,483 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:10:50,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:10:50,520 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 23:10:50,520 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 23:10:50,522 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 37 remaining) [2023-11-06 23:10:50,524 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (35 of 37 remaining) [2023-11-06 23:10:50,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (34 of 37 remaining) [2023-11-06 23:10:50,525 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (33 of 37 remaining) [2023-11-06 23:10:50,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (32 of 37 remaining) [2023-11-06 23:10:50,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 37 remaining) [2023-11-06 23:10:50,526 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (30 of 37 remaining) [2023-11-06 23:10:50,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (29 of 37 remaining) [2023-11-06 23:10:50,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 37 remaining) [2023-11-06 23:10:50,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 37 remaining) [2023-11-06 23:10:50,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 37 remaining) [2023-11-06 23:10:50,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 37 remaining) [2023-11-06 23:10:50,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (24 of 37 remaining) [2023-11-06 23:10:50,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (23 of 37 remaining) [2023-11-06 23:10:50,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (22 of 37 remaining) [2023-11-06 23:10:50,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (21 of 37 remaining) [2023-11-06 23:10:50,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (20 of 37 remaining) [2023-11-06 23:10:50,530 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 37 remaining) [2023-11-06 23:10:50,530 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (18 of 37 remaining) [2023-11-06 23:10:50,530 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 37 remaining) [2023-11-06 23:10:50,531 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (16 of 37 remaining) [2023-11-06 23:10:50,531 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (15 of 37 remaining) [2023-11-06 23:10:50,531 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (14 of 37 remaining) [2023-11-06 23:10:50,531 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 37 remaining) [2023-11-06 23:10:50,532 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (12 of 37 remaining) [2023-11-06 23:10:50,532 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 37 remaining) [2023-11-06 23:10:50,532 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (10 of 37 remaining) [2023-11-06 23:10:50,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 37 remaining) [2023-11-06 23:10:50,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 37 remaining) [2023-11-06 23:10:50,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 37 remaining) [2023-11-06 23:10:50,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 37 remaining) [2023-11-06 23:10:50,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (5 of 37 remaining) [2023-11-06 23:10:50,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (4 of 37 remaining) [2023-11-06 23:10:50,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 37 remaining) [2023-11-06 23:10:50,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 37 remaining) [2023-11-06 23:10:50,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (1 of 37 remaining) [2023-11-06 23:10:50,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 37 remaining) [2023-11-06 23:10:50,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 23:10:50,536 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-06 23:10:50,539 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-06 23:10:50,539 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-06 23:10:50,670 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 23:10:50,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 230 places, 240 transitions, 490 flow [2023-11-06 23:10:50,740 INFO L124 PetriNetUnfolderBase]: 17/264 cut-off events. [2023-11-06 23:10:50,740 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 23:10:50,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 264 events. 17/264 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1017 event pairs, 0 based on Foata normal form. 0/208 useless extension candidates. Maximal degree in co-relation 219. Up to 6 conditions per place. [2023-11-06 23:10:50,745 INFO L82 GeneralOperation]: Start removeDead. Operand has 230 places, 240 transitions, 490 flow [2023-11-06 23:10:50,750 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 230 places, 240 transitions, 490 flow [2023-11-06 23:10:50,750 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 23:10:50,751 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 230 places, 240 transitions, 490 flow [2023-11-06 23:10:50,751 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 230 places, 240 transitions, 490 flow [2023-11-06 23:10:50,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 230 places, 240 transitions, 490 flow [2023-11-06 23:10:50,840 INFO L124 PetriNetUnfolderBase]: 17/264 cut-off events. [2023-11-06 23:10:50,841 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 23:10:50,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 264 events. 17/264 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1017 event pairs, 0 based on Foata normal form. 0/208 useless extension candidates. Maximal degree in co-relation 219. Up to 6 conditions per place. [2023-11-06 23:10:50,863 INFO L119 LiptonReduction]: Number of co-enabled transitions 27192 [2023-11-06 23:10:59,421 WARN L293 SmtUtils]: Spent 5.24s on a formula simplification. DAG size of input: 105 DAG size of output: 92 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:11:10,489 WARN L293 SmtUtils]: Spent 7.67s on a formula simplification. DAG size of input: 108 DAG size of output: 96 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:11:21,714 WARN L293 SmtUtils]: Spent 5.05s on a formula simplification. DAG size of input: 105 DAG size of output: 92 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:11:31,449 WARN L293 SmtUtils]: Spent 7.26s on a formula simplification. DAG size of input: 108 DAG size of output: 96 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:11:42,012 WARN L293 SmtUtils]: Spent 5.56s on a formula simplification. DAG size of input: 108 DAG size of output: 95 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:11:53,067 WARN L293 SmtUtils]: Spent 7.76s on a formula simplification. DAG size of input: 121 DAG size of output: 102 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:12:16,479 WARN L293 SmtUtils]: Spent 5.68s on a formula simplification. DAG size of input: 108 DAG size of output: 95 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:12:27,461 WARN L293 SmtUtils]: Spent 8.27s on a formula simplification. DAG size of input: 121 DAG size of output: 102 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:12:33,510 INFO L134 LiptonReduction]: Checked pairs total: 103525 [2023-11-06 23:12:33,510 INFO L136 LiptonReduction]: Total number of compositions: 171 [2023-11-06 23:12:33,512 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:12:33,514 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;@7ba51a7d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:12:33,514 INFO L358 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2023-11-06 23:12:33,517 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 23:12:33,517 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2023-11-06 23:12:33,517 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 23:12:33,517 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:12:33,518 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 23:12:33,518 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err7ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2023-11-06 23:12:33,518 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:33,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1565550440, now seen corresponding path program 1 times [2023-11-06 23:12:33,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:12:33,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820894341] [2023-11-06 23:12:33,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:33,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:12:33,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:33,560 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 23:12:33,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:12:33,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820894341] [2023-11-06 23:12:33,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820894341] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:12:33,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:12:33,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:12:33,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48392308] [2023-11-06 23:12:33,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:12:33,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 23:12:33,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:12:33,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 23:12:33,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 23:12:33,565 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 411 [2023-11-06 23:12:33,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 122 transitions, 254 flow. Second operand has 2 states, 2 states have (on average 199.0) internal successors, (398), 2 states have internal predecessors, (398), 0 states have call successors, (0), 0 states 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 23:12:33,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:12:33,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 411 [2023-11-06 23:12:33,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:12:34,469 INFO L124 PetriNetUnfolderBase]: 750/1736 cut-off events. [2023-11-06 23:12:34,469 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2023-11-06 23:12:34,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2897 conditions, 1736 events. 750/1736 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 12294 event pairs, 480 based on Foata normal form. 108/1513 useless extension candidates. Maximal degree in co-relation 858. Up to 1117 conditions per place. [2023-11-06 23:12:34,483 INFO L140 encePairwiseOnDemand]: 378/411 looper letters, 38 selfloop transitions, 0 changer transitions 0/89 dead transitions. [2023-11-06 23:12:34,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 89 transitions, 264 flow [2023-11-06 23:12:34,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 23:12:34,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 23:12:34,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 463 transitions. [2023-11-06 23:12:34,487 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5632603406326034 [2023-11-06 23:12:34,487 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 463 transitions. [2023-11-06 23:12:34,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 463 transitions. [2023-11-06 23:12:34,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:12:34,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 463 transitions. [2023-11-06 23:12:34,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 231.5) internal successors, (463), 2 states have internal predecessors, (463), 0 states have call successors, (0), 0 states 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 23:12:34,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 411.0) internal successors, (1233), 3 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states 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 23:12:34,495 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 411.0) internal successors, (1233), 3 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states 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 23:12:34,495 INFO L175 Difference]: Start difference. First operand has 113 places, 122 transitions, 254 flow. Second operand 2 states and 463 transitions. [2023-11-06 23:12:34,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 89 transitions, 264 flow [2023-11-06 23:12:34,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 89 transitions, 264 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 23:12:34,500 INFO L231 Difference]: Finished difference. Result has 85 places, 89 transitions, 188 flow [2023-11-06 23:12:34,500 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=188, PETRI_PLACES=85, PETRI_TRANSITIONS=89} [2023-11-06 23:12:34,501 INFO L281 CegarLoopForPetriNet]: 113 programPoint places, -28 predicate places. [2023-11-06 23:12:34,502 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 89 transitions, 188 flow [2023-11-06 23:12:34,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 199.0) internal successors, (398), 2 states have internal predecessors, (398), 0 states have call successors, (0), 0 states 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 23:12:34,503 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:12:34,503 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:12:34,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 23:12:34,504 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err9ASSERT_VIOLATIONDATA_RACE === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2023-11-06 23:12:34,505 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:34,505 INFO L85 PathProgramCache]: Analyzing trace with hash 589865238, now seen corresponding path program 1 times [2023-11-06 23:12:34,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:12:34,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059009269] [2023-11-06 23:12:34,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:34,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:12:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:34,971 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 23:12:34,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:12:34,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059009269] [2023-11-06 23:12:34,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059009269] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:12:34,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:12:34,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 23:12:34,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868800077] [2023-11-06 23:12:34,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:12:34,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 23:12:34,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:12:34,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 23:12:34,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 23:12:35,397 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 171 out of 411 [2023-11-06 23:12:35,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 89 transitions, 188 flow. Second operand has 6 states, 6 states have (on average 172.5) internal successors, (1035), 6 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states 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 23:12:35,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:12:35,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 171 of 411 [2023-11-06 23:12:35,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:12:38,869 INFO L124 PetriNetUnfolderBase]: 2981/5614 cut-off events. [2023-11-06 23:12:38,870 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2023-11-06 23:12:38,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10390 conditions, 5614 events. 2981/5614 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 336. Compared 43869 event pairs, 591 based on Foata normal form. 0/4754 useless extension candidates. Maximal degree in co-relation 10385. Up to 1862 conditions per place. [2023-11-06 23:12:38,915 INFO L140 encePairwiseOnDemand]: 381/411 looper letters, 222 selfloop transitions, 56 changer transitions 0/309 dead transitions. [2023-11-06 23:12:38,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 309 transitions, 1204 flow [2023-11-06 23:12:38,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 23:12:38,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 23:12:38,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1308 transitions. [2023-11-06 23:12:38,922 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5304136253041363 [2023-11-06 23:12:38,922 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1308 transitions. [2023-11-06 23:12:38,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1308 transitions. [2023-11-06 23:12:38,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:12:38,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1308 transitions. [2023-11-06 23:12:38,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 218.0) internal successors, (1308), 6 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states 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 23:12:38,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 411.0) internal successors, (2877), 7 states have internal predecessors, (2877), 0 states have call successors, (0), 0 states 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 23:12:38,937 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 411.0) internal successors, (2877), 7 states have internal predecessors, (2877), 0 states have call successors, (0), 0 states 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 23:12:38,938 INFO L175 Difference]: Start difference. First operand has 85 places, 89 transitions, 188 flow. Second operand 6 states and 1308 transitions. [2023-11-06 23:12:38,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 309 transitions, 1204 flow [2023-11-06 23:12:38,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 309 transitions, 1204 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 23:12:38,946 INFO L231 Difference]: Finished difference. Result has 95 places, 145 transitions, 584 flow [2023-11-06 23:12:38,946 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=411, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=584, PETRI_PLACES=95, PETRI_TRANSITIONS=145} [2023-11-06 23:12:38,947 INFO L281 CegarLoopForPetriNet]: 113 programPoint places, -18 predicate places. [2023-11-06 23:12:38,948 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 145 transitions, 584 flow [2023-11-06 23:12:38,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 172.5) internal successors, (1035), 6 states have internal predecessors, (1035), 0 states have call successors, (0), 0 states 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 23:12:38,949 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:12:38,949 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-11-06 23:12:38,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 23:12:38,949 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err7ASSERT_VIOLATIONDATA_RACE, thr1Err8ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2023-11-06 23:12:38,950 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:38,950 INFO L85 PathProgramCache]: Analyzing trace with hash -286807508, now seen corresponding path program 1 times [2023-11-06 23:12:38,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:12:38,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685730423] [2023-11-06 23:12:38,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:38,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:12:38,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:12:38,964 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:12:38,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:12:38,979 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 23:12:38,979 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 23:12:38,979 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (54 of 55 remaining) [2023-11-06 23:12:38,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (53 of 55 remaining) [2023-11-06 23:12:38,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (52 of 55 remaining) [2023-11-06 23:12:38,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (51 of 55 remaining) [2023-11-06 23:12:38,980 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (50 of 55 remaining) [2023-11-06 23:12:38,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (49 of 55 remaining) [2023-11-06 23:12:38,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (48 of 55 remaining) [2023-11-06 23:12:38,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (47 of 55 remaining) [2023-11-06 23:12:38,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (46 of 55 remaining) [2023-11-06 23:12:38,981 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 55 remaining) [2023-11-06 23:12:38,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 55 remaining) [2023-11-06 23:12:38,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (43 of 55 remaining) [2023-11-06 23:12:38,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (42 of 55 remaining) [2023-11-06 23:12:38,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (41 of 55 remaining) [2023-11-06 23:12:38,982 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (40 of 55 remaining) [2023-11-06 23:12:38,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 55 remaining) [2023-11-06 23:12:38,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (38 of 55 remaining) [2023-11-06 23:12:38,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (37 of 55 remaining) [2023-11-06 23:12:38,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (36 of 55 remaining) [2023-11-06 23:12:38,983 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (35 of 55 remaining) [2023-11-06 23:12:38,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (34 of 55 remaining) [2023-11-06 23:12:38,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (33 of 55 remaining) [2023-11-06 23:12:38,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (32 of 55 remaining) [2023-11-06 23:12:38,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 55 remaining) [2023-11-06 23:12:38,984 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (30 of 55 remaining) [2023-11-06 23:12:38,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (29 of 55 remaining) [2023-11-06 23:12:38,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 55 remaining) [2023-11-06 23:12:38,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 55 remaining) [2023-11-06 23:12:38,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (26 of 55 remaining) [2023-11-06 23:12:38,985 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (25 of 55 remaining) [2023-11-06 23:12:38,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (24 of 55 remaining) [2023-11-06 23:12:38,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (23 of 55 remaining) [2023-11-06 23:12:38,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (22 of 55 remaining) [2023-11-06 23:12:38,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (21 of 55 remaining) [2023-11-06 23:12:38,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (20 of 55 remaining) [2023-11-06 23:12:38,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 55 remaining) [2023-11-06 23:12:38,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (18 of 55 remaining) [2023-11-06 23:12:38,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 55 remaining) [2023-11-06 23:12:38,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (16 of 55 remaining) [2023-11-06 23:12:38,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (15 of 55 remaining) [2023-11-06 23:12:38,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (14 of 55 remaining) [2023-11-06 23:12:38,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 55 remaining) [2023-11-06 23:12:38,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (12 of 55 remaining) [2023-11-06 23:12:38,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 55 remaining) [2023-11-06 23:12:38,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (10 of 55 remaining) [2023-11-06 23:12:38,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 55 remaining) [2023-11-06 23:12:38,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 55 remaining) [2023-11-06 23:12:38,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 55 remaining) [2023-11-06 23:12:38,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (6 of 55 remaining) [2023-11-06 23:12:38,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (5 of 55 remaining) [2023-11-06 23:12:38,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (4 of 55 remaining) [2023-11-06 23:12:38,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 55 remaining) [2023-11-06 23:12:38,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 55 remaining) [2023-11-06 23:12:38,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (1 of 55 remaining) [2023-11-06 23:12:38,991 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 55 remaining) [2023-11-06 23:12:38,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 23:12:38,991 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-06 23:12:38,992 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-06 23:12:38,992 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-06 23:12:39,210 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 23:12:39,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 329 places, 344 transitions, 706 flow [2023-11-06 23:12:39,302 INFO L124 PetriNetUnfolderBase]: 25/381 cut-off events. [2023-11-06 23:12:39,303 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-06 23:12:39,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 394 conditions, 381 events. 25/381 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1775 event pairs, 0 based on Foata normal form. 0/298 useless extension candidates. Maximal degree in co-relation 322. Up to 8 conditions per place. [2023-11-06 23:12:39,310 INFO L82 GeneralOperation]: Start removeDead. Operand has 329 places, 344 transitions, 706 flow [2023-11-06 23:12:39,319 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 329 places, 344 transitions, 706 flow [2023-11-06 23:12:39,319 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 23:12:39,319 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 329 places, 344 transitions, 706 flow [2023-11-06 23:12:39,320 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 329 places, 344 transitions, 706 flow [2023-11-06 23:12:39,320 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 329 places, 344 transitions, 706 flow [2023-11-06 23:12:39,441 INFO L124 PetriNetUnfolderBase]: 25/381 cut-off events. [2023-11-06 23:12:39,441 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-06 23:12:39,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 394 conditions, 381 events. 25/381 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1775 event pairs, 0 based on Foata normal form. 0/298 useless extension candidates. Maximal degree in co-relation 322. Up to 8 conditions per place. [2023-11-06 23:12:39,480 INFO L119 LiptonReduction]: Number of co-enabled transitions 72924 [2023-11-06 23:12:47,714 WARN L293 SmtUtils]: Spent 5.64s on a formula simplification. DAG size of input: 105 DAG size of output: 92 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:12:58,026 WARN L293 SmtUtils]: Spent 7.64s on a formula simplification. DAG size of input: 118 DAG size of output: 99 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:13:07,539 WARN L293 SmtUtils]: Spent 5.22s on a formula simplification. DAG size of input: 105 DAG size of output: 92 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:13:17,833 WARN L293 SmtUtils]: Spent 7.95s on a formula simplification. DAG size of input: 108 DAG size of output: 96 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:13:30,931 WARN L293 SmtUtils]: Spent 5.43s on a formula simplification. DAG size of input: 105 DAG size of output: 92 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)