./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d03ec47-3f13-44ba-8578-f9612188cbfc/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d03ec47-3f13-44ba-8578-f9612188cbfc/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d03ec47-3f13-44ba-8578-f9612188cbfc/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d03ec47-3f13-44ba-8578-f9612188cbfc/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d03ec47-3f13-44ba-8578-f9612188cbfc/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d03ec47-3f13-44ba-8578-f9612188cbfc/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 779f57e464f50d458e1b66270e0c9f2866c6247d4d7f63a3096c6ac13e286657 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:33:29,080 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:33:29,199 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d03ec47-3f13-44ba-8578-f9612188cbfc/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:33:29,208 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:33:29,208 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:33:29,252 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:33:29,253 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:33:29,253 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:33:29,254 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:33:29,259 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:33:29,260 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:33:29,261 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:33:29,261 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:33:29,263 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:33:29,263 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:33:29,264 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:33:29,264 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:33:29,265 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:33:29,265 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:33:29,265 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:33:29,266 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:33:29,266 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:33:29,267 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:33:29,267 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:33:29,268 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:33:29,268 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:33:29,269 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:33:29,270 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:33:29,270 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:33:29,270 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:33:29,272 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:33:29,272 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:33:29,272 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:33:29,273 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:33:29,273 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:33:29,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:33:29,273 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:33:29,274 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:33:29,274 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:33:29,274 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:33:29,274 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:33:29,275 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_0d03ec47-3f13-44ba-8578-f9612188cbfc/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d03ec47-3f13-44ba-8578-f9612188cbfc/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 779f57e464f50d458e1b66270e0c9f2866c6247d4d7f63a3096c6ac13e286657 [2023-11-19 07:33:29,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:33:29,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:33:29,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:33:29,600 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:33:29,601 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:33:29,603 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d03ec47-3f13-44ba-8578-f9612188cbfc/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c [2023-11-19 07:33:33,120 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:33:33,377 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:33:33,378 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d03ec47-3f13-44ba-8578-f9612188cbfc/sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c [2023-11-19 07:33:33,389 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d03ec47-3f13-44ba-8578-f9612188cbfc/bin/uautomizer-verify-uCwYo4JHxu/data/75ffd7c8c/c7463caa1e834995a9f73d727469f386/FLAG8d85dc561 [2023-11-19 07:33:33,407 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d03ec47-3f13-44ba-8578-f9612188cbfc/bin/uautomizer-verify-uCwYo4JHxu/data/75ffd7c8c/c7463caa1e834995a9f73d727469f386 [2023-11-19 07:33:33,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:33:33,412 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:33:33,414 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:33:33,415 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:33:33,423 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:33:33,424 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:33:33" (1/1) ... [2023-11-19 07:33:33,425 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47e411e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:33, skipping insertion in model container [2023-11-19 07:33:33,425 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:33:33" (1/1) ... [2023-11-19 07:33:33,478 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:33:33,812 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:33:33,823 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:33:33,872 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:33:33,891 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:33:33,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:33 WrapperNode [2023-11-19 07:33:33,892 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:33:33,893 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:33:33,893 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:33:33,893 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:33:33,904 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:33" (1/1) ... [2023-11-19 07:33:33,922 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:33" (1/1) ... [2023-11-19 07:33:33,998 INFO L138 Inliner]: procedures = 26, calls = 51, calls flagged for inlining = 15, calls inlined = 23, statements flattened = 521 [2023-11-19 07:33:33,998 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:33:33,999 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:33:33,999 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:33:33,999 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:33:34,010 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:33" (1/1) ... [2023-11-19 07:33:34,011 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:33" (1/1) ... [2023-11-19 07:33:34,021 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:33" (1/1) ... [2023-11-19 07:33:34,022 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:33" (1/1) ... [2023-11-19 07:33:34,054 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:33" (1/1) ... [2023-11-19 07:33:34,061 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:33" (1/1) ... [2023-11-19 07:33:34,064 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:33" (1/1) ... [2023-11-19 07:33:34,068 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:33" (1/1) ... [2023-11-19 07:33:34,075 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:33:34,079 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:33:34,079 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:33:34,079 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:33:34,080 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:33" (1/1) ... [2023-11-19 07:33:34,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:33:34,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d03ec47-3f13-44ba-8578-f9612188cbfc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:33:34,130 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d03ec47-3f13-44ba-8578-f9612188cbfc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:33:34,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d03ec47-3f13-44ba-8578-f9612188cbfc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:33:34,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:33:34,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:33:34,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:33:34,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:33:34,191 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 07:33:34,192 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 07:33:34,192 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 07:33:34,192 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 07:33:34,193 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-19 07:33:34,193 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-19 07:33:34,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:33:34,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:33:34,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:33:34,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:33:34,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:33:34,199 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:33:34,367 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:33:34,370 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:33:35,483 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:33:35,502 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:33:35,502 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-19 07:33:35,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:33:35 BoogieIcfgContainer [2023-11-19 07:33:35,511 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:33:35,514 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:33:35,514 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:33:35,518 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:33:35,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:33:33" (1/3) ... [2023-11-19 07:33:35,519 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d5cdbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:33:35, skipping insertion in model container [2023-11-19 07:33:35,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:33" (2/3) ... [2023-11-19 07:33:35,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d5cdbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:33:35, skipping insertion in model container [2023-11-19 07:33:35,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:33:35" (3/3) ... [2023-11-19 07:33:35,522 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-array-int-subst.wvr.c [2023-11-19 07:33:35,533 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:33:35,545 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:33:35,546 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 62 error locations. [2023-11-19 07:33:35,546 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:33:35,824 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-19 07:33:35,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 638 places, 661 transitions, 1343 flow [2023-11-19 07:33:36,331 INFO L124 PetriNetUnfolderBase]: 33/658 cut-off events. [2023-11-19 07:33:36,332 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 07:33:36,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 671 conditions, 658 events. 33/658 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1532 event pairs, 0 based on Foata normal form. 0/563 useless extension candidates. Maximal degree in co-relation 467. Up to 3 conditions per place. [2023-11-19 07:33:36,359 INFO L82 GeneralOperation]: Start removeDead. Operand has 638 places, 661 transitions, 1343 flow [2023-11-19 07:33:36,382 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 611 places, 632 transitions, 1282 flow [2023-11-19 07:33:36,386 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:33:36,404 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 611 places, 632 transitions, 1282 flow [2023-11-19 07:33:36,409 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 611 places, 632 transitions, 1282 flow [2023-11-19 07:33:36,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 611 places, 632 transitions, 1282 flow [2023-11-19 07:33:36,716 INFO L124 PetriNetUnfolderBase]: 31/632 cut-off events. [2023-11-19 07:33:36,716 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 07:33:36,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 645 conditions, 632 events. 31/632 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1508 event pairs, 0 based on Foata normal form. 0/540 useless extension candidates. Maximal degree in co-relation 467. Up to 3 conditions per place. [2023-11-19 07:33:36,783 INFO L119 LiptonReduction]: Number of co-enabled transitions 95910 [2023-11-19 07:33:54,322 INFO L134 LiptonReduction]: Checked pairs total: 563640 [2023-11-19 07:33:54,323 INFO L136 LiptonReduction]: Total number of compositions: 560 [2023-11-19 07:33:54,343 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:33:54,350 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@47671353, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:33:54,350 INFO L358 AbstractCegarLoop]: Starting to check reachability of 107 error locations. [2023-11-19 07:33:54,352 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:33:54,353 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 07:33:54,353 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:33:54,354 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:33:54,354 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:33:54,355 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2023-11-19 07:33:54,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:33:54,362 INFO L85 PathProgramCache]: Analyzing trace with hash 2356, now seen corresponding path program 1 times [2023-11-19 07:33:54,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:33:54,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101603067] [2023-11-19 07:33:54,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:33:54,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:33:54,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:33:54,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:33:54,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:33:54,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101603067] [2023-11-19 07:33:54,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101603067] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:33:54,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:33:54,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:33:54,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707687138] [2023-11-19 07:33:54,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:33:54,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:33:54,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:33:54,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:33:54,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:33:54,573 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 634 out of 1221 [2023-11-19 07:33:54,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 224 transitions, 466 flow. Second operand has 2 states, 2 states have (on average 634.5) internal successors, (1269), 2 states have internal predecessors, (1269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:33:54,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:33:54,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 634 of 1221 [2023-11-19 07:33:54,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:34:01,323 INFO L124 PetriNetUnfolderBase]: 10616/33417 cut-off events. [2023-11-19 07:34:01,323 INFO L125 PetriNetUnfolderBase]: For 762/903 co-relation queries the response was YES. [2023-11-19 07:34:01,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48110 conditions, 33417 events. 10616/33417 cut-off events. For 762/903 co-relation queries the response was YES. Maximal size of possible extension queue 812. Compared 398099 event pairs, 7901 based on Foata normal form. 2553/29945 useless extension candidates. Maximal degree in co-relation 44203. Up to 14278 conditions per place. [2023-11-19 07:34:01,834 INFO L140 encePairwiseOnDemand]: 1193/1221 looper letters, 58 selfloop transitions, 0 changer transitions 1/196 dead transitions. [2023-11-19 07:34:01,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 196 transitions, 528 flow [2023-11-19 07:34:01,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:34:01,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:34:01,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1355 transitions. [2023-11-19 07:34:01,867 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5548730548730548 [2023-11-19 07:34:01,868 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1355 transitions. [2023-11-19 07:34:01,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1355 transitions. [2023-11-19 07:34:01,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:34:01,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1355 transitions. [2023-11-19 07:34:01,888 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 677.5) internal successors, (1355), 2 states have internal predecessors, (1355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:01,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1221.0) internal successors, (3663), 3 states have internal predecessors, (3663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:01,907 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1221.0) internal successors, (3663), 3 states have internal predecessors, (3663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:01,910 INFO L175 Difference]: Start difference. First operand has 217 places, 224 transitions, 466 flow. Second operand 2 states and 1355 transitions. [2023-11-19 07:34:01,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 196 transitions, 528 flow [2023-11-19 07:34:01,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 196 transitions, 516 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-19 07:34:01,961 INFO L231 Difference]: Finished difference. Result has 189 places, 195 transitions, 395 flow [2023-11-19 07:34:01,963 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1221, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=395, PETRI_PLACES=189, PETRI_TRANSITIONS=195} [2023-11-19 07:34:01,968 INFO L281 CegarLoopForPetriNet]: 217 programPoint places, -28 predicate places. [2023-11-19 07:34:01,968 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 195 transitions, 395 flow [2023-11-19 07:34:01,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 634.5) internal successors, (1269), 2 states have internal predecessors, (1269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:01,970 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:34:01,970 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:01,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:34:01,971 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2023-11-19 07:34:01,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:01,984 INFO L85 PathProgramCache]: Analyzing trace with hash 263912269, now seen corresponding path program 1 times [2023-11-19 07:34:01,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:01,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530163220] [2023-11-19 07:34:01,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:01,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:02,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:02,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:02,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:02,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530163220] [2023-11-19 07:34:02,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530163220] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:02,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:02,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:34:02,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260061348] [2023-11-19 07:34:02,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:02,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:34:02,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:02,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:34:02,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:34:02,274 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 618 out of 1221 [2023-11-19 07:34:02,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 195 transitions, 395 flow. Second operand has 3 states, 3 states have (on average 620.3333333333334) internal successors, (1861), 3 states have internal predecessors, (1861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:02,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:34:02,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 618 of 1221 [2023-11-19 07:34:02,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:34:07,858 INFO L124 PetriNetUnfolderBase]: 14568/43255 cut-off events. [2023-11-19 07:34:07,858 INFO L125 PetriNetUnfolderBase]: For 196/671 co-relation queries the response was YES. [2023-11-19 07:34:07,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63095 conditions, 43255 events. 14568/43255 cut-off events. For 196/671 co-relation queries the response was YES. Maximal size of possible extension queue 1040. Compared 516026 event pairs, 11205 based on Foata normal form. 0/36078 useless extension candidates. Maximal degree in co-relation 63092. Up to 19668 conditions per place. [2023-11-19 07:34:08,237 INFO L140 encePairwiseOnDemand]: 1216/1221 looper letters, 61 selfloop transitions, 1 changer transitions 0/191 dead transitions. [2023-11-19 07:34:08,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 191 transitions, 511 flow [2023-11-19 07:34:08,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:34:08,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:34:08,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1920 transitions. [2023-11-19 07:34:08,248 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5241605241605242 [2023-11-19 07:34:08,249 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1920 transitions. [2023-11-19 07:34:08,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1920 transitions. [2023-11-19 07:34:08,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:34:08,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1920 transitions. [2023-11-19 07:34:08,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 640.0) internal successors, (1920), 3 states have internal predecessors, (1920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:08,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1221.0) internal successors, (4884), 4 states have internal predecessors, (4884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:08,278 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1221.0) internal successors, (4884), 4 states have internal predecessors, (4884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:08,279 INFO L175 Difference]: Start difference. First operand has 189 places, 195 transitions, 395 flow. Second operand 3 states and 1920 transitions. [2023-11-19 07:34:08,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 191 transitions, 511 flow [2023-11-19 07:34:08,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 191 transitions, 511 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:34:08,289 INFO L231 Difference]: Finished difference. Result has 186 places, 191 transitions, 389 flow [2023-11-19 07:34:08,290 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1221, PETRI_DIFFERENCE_MINUEND_FLOW=387, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=389, PETRI_PLACES=186, PETRI_TRANSITIONS=191} [2023-11-19 07:34:08,292 INFO L281 CegarLoopForPetriNet]: 217 programPoint places, -31 predicate places. [2023-11-19 07:34:08,293 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 191 transitions, 389 flow [2023-11-19 07:34:08,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 620.3333333333334) internal successors, (1861), 3 states have internal predecessors, (1861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:08,300 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:34:08,300 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:08,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:34:08,301 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2023-11-19 07:34:08,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:08,305 INFO L85 PathProgramCache]: Analyzing trace with hash 216667887, now seen corresponding path program 1 times [2023-11-19 07:34:08,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:08,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912061759] [2023-11-19 07:34:08,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:08,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:08,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:08,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:08,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:08,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912061759] [2023-11-19 07:34:08,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912061759] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:08,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:08,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:34:08,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372252949] [2023-11-19 07:34:08,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:08,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:34:08,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:08,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:34:08,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:34:08,464 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 618 out of 1221 [2023-11-19 07:34:08,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 191 transitions, 389 flow. Second operand has 3 states, 3 states have (on average 620.6666666666666) internal successors, (1862), 3 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:08,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:34:08,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 618 of 1221 [2023-11-19 07:34:08,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:34:13,574 INFO L124 PetriNetUnfolderBase]: 14060/41583 cut-off events. [2023-11-19 07:34:13,574 INFO L125 PetriNetUnfolderBase]: For 192/400 co-relation queries the response was YES. [2023-11-19 07:34:13,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60693 conditions, 41583 events. 14060/41583 cut-off events. For 192/400 co-relation queries the response was YES. Maximal size of possible extension queue 1027. Compared 496508 event pairs, 10745 based on Foata normal form. 0/34524 useless extension candidates. Maximal degree in co-relation 60689. Up to 18958 conditions per place. [2023-11-19 07:34:14,010 INFO L140 encePairwiseOnDemand]: 1216/1221 looper letters, 61 selfloop transitions, 1 changer transitions 0/187 dead transitions. [2023-11-19 07:34:14,011 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 187 transitions, 505 flow [2023-11-19 07:34:14,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:34:14,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:34:14,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1920 transitions. [2023-11-19 07:34:14,020 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5241605241605242 [2023-11-19 07:34:14,021 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1920 transitions. [2023-11-19 07:34:14,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1920 transitions. [2023-11-19 07:34:14,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:34:14,024 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1920 transitions. [2023-11-19 07:34:14,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 640.0) internal successors, (1920), 3 states have internal predecessors, (1920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:14,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1221.0) internal successors, (4884), 4 states have internal predecessors, (4884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:14,050 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1221.0) internal successors, (4884), 4 states have internal predecessors, (4884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:14,051 INFO L175 Difference]: Start difference. First operand has 186 places, 191 transitions, 389 flow. Second operand 3 states and 1920 transitions. [2023-11-19 07:34:14,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 187 transitions, 505 flow [2023-11-19 07:34:14,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 187 transitions, 504 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:34:14,058 INFO L231 Difference]: Finished difference. Result has 183 places, 187 transitions, 382 flow [2023-11-19 07:34:14,059 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1221, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=382, PETRI_PLACES=183, PETRI_TRANSITIONS=187} [2023-11-19 07:34:14,061 INFO L281 CegarLoopForPetriNet]: 217 programPoint places, -34 predicate places. [2023-11-19 07:34:14,061 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 187 transitions, 382 flow [2023-11-19 07:34:14,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 620.6666666666666) internal successors, (1862), 3 states have internal predecessors, (1862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:14,064 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:34:14,064 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:34:14,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:34:14,069 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 103 more)] === [2023-11-19 07:34:14,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:34:14,070 INFO L85 PathProgramCache]: Analyzing trace with hash -63456297, now seen corresponding path program 1 times [2023-11-19 07:34:14,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:34:14,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116243128] [2023-11-19 07:34:14,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:34:14,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:34:14,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:34:14,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:34:14,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:34:14,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116243128] [2023-11-19 07:34:14,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116243128] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:34:14,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:34:14,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:34:14,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670902269] [2023-11-19 07:34:14,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:34:14,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:34:14,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:34:14,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:34:14,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:34:14,223 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 618 out of 1221 [2023-11-19 07:34:14,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 187 transitions, 382 flow. Second operand has 3 states, 3 states have (on average 621.3333333333334) internal successors, (1864), 3 states have internal predecessors, (1864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:34:14,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:34:14,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 618 of 1221 [2023-11-19 07:34:14,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand