./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-word-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a 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_e4e5ed1e-c147-41f2-b485-968426fbc8e4/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4e5ed1e-c147-41f2-b485-968426fbc8e4/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4e5ed1e-c147-41f2-b485-968426fbc8e4/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4e5ed1e-c147-41f2-b485-968426fbc8e4/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-word-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4e5ed1e-c147-41f2-b485-968426fbc8e4/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4e5ed1e-c147-41f2-b485-968426fbc8e4/bin/uautomizer-ZsLfNo2U6R --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 73462fb8dbdc39f07edabdd79150cbad579fbba379eb033cd2e89802bbb8b9a6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 16:48:57,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:48:57,269 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:48:57,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:48:57,302 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:48:57,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:48:57,306 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:48:57,312 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:48:57,314 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:48:57,315 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:48:57,316 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:48:57,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:48:57,317 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:48:57,318 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:48:57,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:48:57,321 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:48:57,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:48:57,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:48:57,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:48:57,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:48:57,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:48:57,329 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:48:57,331 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:48:57,332 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:48:57,336 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:48:57,336 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:48:57,337 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:48:57,338 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:48:57,338 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:48:57,339 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:48:57,340 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:48:57,341 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:48:57,341 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:48:57,342 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:48:57,344 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:48:57,344 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:48:57,345 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:48:57,345 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:48:57,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:48:57,347 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:48:57,348 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:48:57,348 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4e5ed1e-c147-41f2-b485-968426fbc8e4/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 16:48:57,373 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:48:57,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:48:57,374 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:48:57,374 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:48:57,375 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:48:57,375 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:48:57,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:48:57,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:48:57,377 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:48:57,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:48:57,377 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 16:48:57,377 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 16:48:57,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:48:57,378 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 16:48:57,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:48:57,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:48:57,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:48:57,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:48:57,379 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 16:48:57,380 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 16:48:57,380 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:48:57,380 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:48:57,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:48:57,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:48:57,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:48:57,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:48:57,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:48:57,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:48:57,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:48:57,382 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:48:57,383 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 16:48:57,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 16:48:57,383 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:48:57,383 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:48:57,384 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:48:57,384 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:48:57,384 INFO L138 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_e4e5ed1e-c147-41f2-b485-968426fbc8e4/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4e5ed1e-c147-41f2-b485-968426fbc8e4/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73462fb8dbdc39f07edabdd79150cbad579fbba379eb033cd2e89802bbb8b9a6 [2022-11-25 16:48:57,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:48:57,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:48:57,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:48:57,725 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:48:57,725 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:48:57,726 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4e5ed1e-c147-41f2-b485-968426fbc8e4/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/weaver/chl-word-trans.wvr.c [2022-11-25 16:49:01,229 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:49:01,559 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:49:01,559 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4e5ed1e-c147-41f2-b485-968426fbc8e4/sv-benchmarks/c/weaver/chl-word-trans.wvr.c [2022-11-25 16:49:01,567 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4e5ed1e-c147-41f2-b485-968426fbc8e4/bin/uautomizer-ZsLfNo2U6R/data/ffdb8df9e/aa2a0bdd01be4e0f804fb3e626cbee97/FLAG45929da46 [2022-11-25 16:49:01,586 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4e5ed1e-c147-41f2-b485-968426fbc8e4/bin/uautomizer-ZsLfNo2U6R/data/ffdb8df9e/aa2a0bdd01be4e0f804fb3e626cbee97 [2022-11-25 16:49:01,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:49:01,591 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:49:01,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:49:01,594 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:49:01,598 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:49:01,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:49:01" (1/1) ... [2022-11-25 16:49:01,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fff126d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:49:01, skipping insertion in model container [2022-11-25 16:49:01,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:49:01" (1/1) ... [2022-11-25 16:49:01,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:49:01,653 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:49:02,066 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4e5ed1e-c147-41f2-b485-968426fbc8e4/sv-benchmarks/c/weaver/chl-word-trans.wvr.c[3292,3305] [2022-11-25 16:49:02,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:49:02,098 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:49:02,190 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4e5ed1e-c147-41f2-b485-968426fbc8e4/sv-benchmarks/c/weaver/chl-word-trans.wvr.c[3292,3305] [2022-11-25 16:49:02,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:49:02,224 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:49:02,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:49:02 WrapperNode [2022-11-25 16:49:02,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:49:02,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:49:02,227 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:49:02,227 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:49:02,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:49:02" (1/1) ... [2022-11-25 16:49:02,269 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:49:02" (1/1) ... [2022-11-25 16:49:02,327 INFO L138 Inliner]: procedures = 25, calls = 44, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 264 [2022-11-25 16:49:02,331 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:49:02,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:49:02,332 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:49:02,333 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:49:02,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:49:02" (1/1) ... [2022-11-25 16:49:02,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:49:02" (1/1) ... [2022-11-25 16:49:02,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:49:02" (1/1) ... [2022-11-25 16:49:02,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:49:02" (1/1) ... [2022-11-25 16:49:02,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:49:02" (1/1) ... [2022-11-25 16:49:02,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:49:02" (1/1) ... [2022-11-25 16:49:02,422 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:49:02" (1/1) ... [2022-11-25 16:49:02,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:49:02" (1/1) ... [2022-11-25 16:49:02,440 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:49:02,441 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:49:02,441 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:49:02,441 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:49:02,442 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:49:02" (1/1) ... [2022-11-25 16:49:02,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:49:02,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4e5ed1e-c147-41f2-b485-968426fbc8e4/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:49:02,490 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4e5ed1e-c147-41f2-b485-968426fbc8e4/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:49:02,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4e5ed1e-c147-41f2-b485-968426fbc8e4/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:49:02,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 16:49:02,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 16:49:02,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 16:49:02,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 16:49:02,553 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 16:49:02,554 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 16:49:02,554 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 16:49:02,554 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 16:49:02,554 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-25 16:49:02,555 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-25 16:49:02,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 16:49:02,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 16:49:02,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:49:02,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:49:02,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 16:49:02,558 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 16:49:02,751 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:49:02,753 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:49:04,099 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:49:04,119 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:49:04,120 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-25 16:49:04,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:49:04 BoogieIcfgContainer [2022-11-25 16:49:04,124 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:49:04,127 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:49:04,127 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:49:04,132 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:49:04,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:49:01" (1/3) ... [2022-11-25 16:49:04,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ae4008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:49:04, skipping insertion in model container [2022-11-25 16:49:04,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:49:02" (2/3) ... [2022-11-25 16:49:04,134 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ae4008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:49:04, skipping insertion in model container [2022-11-25 16:49:04,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:49:04" (3/3) ... [2022-11-25 16:49:04,138 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-trans.wvr.c [2022-11-25 16:49:04,149 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 16:49:04,163 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:49:04,163 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2022-11-25 16:49:04,163 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 16:49:04,410 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-25 16:49:04,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 636 places, 659 transitions, 1342 flow [2022-11-25 16:49:05,015 INFO L130 PetriNetUnfolder]: 33/656 cut-off events. [2022-11-25 16:49:05,015 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-25 16:49:05,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 669 conditions, 656 events. 33/656 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1734 event pairs, 0 based on Foata normal form. 0/545 useless extension candidates. Maximal degree in co-relation 481. Up to 3 conditions per place. [2022-11-25 16:49:05,038 INFO L82 GeneralOperation]: Start removeDead. Operand has 636 places, 659 transitions, 1342 flow [2022-11-25 16:49:05,063 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 611 places, 632 transitions, 1282 flow [2022-11-25 16:49:05,067 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 16:49:05,100 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 611 places, 632 transitions, 1282 flow [2022-11-25 16:49:05,108 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 611 places, 632 transitions, 1282 flow [2022-11-25 16:49:05,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 611 places, 632 transitions, 1282 flow [2022-11-25 16:49:05,392 INFO L130 PetriNetUnfolder]: 31/632 cut-off events. [2022-11-25 16:49:05,392 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-25 16:49:05,401 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 13. Compared 1709 event pairs, 0 based on Foata normal form. 0/524 useless extension candidates. Maximal degree in co-relation 481. Up to 3 conditions per place. [2022-11-25 16:49:05,445 INFO L119 LiptonReduction]: Number of co-enabled transitions 89910 [2022-11-25 16:49:44,583 INFO L134 LiptonReduction]: Checked pairs total: 1074116 [2022-11-25 16:49:44,583 INFO L136 LiptonReduction]: Total number of compositions: 809 [2022-11-25 16:49:44,605 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:49:44,613 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;@378d5202, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:49:44,613 INFO L358 AbstractCegarLoop]: Starting to check reachability of 138 error locations. [2022-11-25 16:49:44,616 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-25 16:49:44,616 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 16:49:44,616 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:49:44,617 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 16:49:44,618 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-25 16:49:44,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:49:44,625 INFO L85 PathProgramCache]: Analyzing trace with hash 2510, now seen corresponding path program 1 times [2022-11-25 16:49:44,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:49:44,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138131114] [2022-11-25 16:49:44,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:49:44,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:49:44,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:49:44,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:49:44,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:49:44,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138131114] [2022-11-25 16:49:44,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138131114] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:49:44,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:49:44,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 16:49:44,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205995464] [2022-11-25 16:49:44,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:49:44,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 16:49:44,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:49:44,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 16:49:44,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 16:49:44,824 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 639 out of 1468 [2022-11-25 16:49:44,831 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 230 transitions, 478 flow. Second operand has 2 states, 2 states have (on average 639.5) internal successors, (1279), 2 states have internal predecessors, (1279), 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) [2022-11-25 16:49:44,831 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:49:44,832 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 639 of 1468 [2022-11-25 16:49:44,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:50:14,244 INFO L130 PetriNetUnfolder]: 138192/232726 cut-off events. [2022-11-25 16:50:14,244 INFO L131 PetriNetUnfolder]: For 2464/2651 co-relation queries the response was YES. [2022-11-25 16:50:14,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 417203 conditions, 232726 events. 138192/232726 cut-off events. For 2464/2651 co-relation queries the response was YES. Maximal size of possible extension queue 4890. Compared 2313480 event pairs, 111044 based on Foata normal form. 5430/206926 useless extension candidates. Maximal degree in co-relation 402188. Up to 182670 conditions per place. [2022-11-25 16:50:16,045 INFO L137 encePairwiseOnDemand]: 1402/1468 looper letters, 104 selfloop transitions, 0 changer transitions 1/164 dead transitions. [2022-11-25 16:50:16,045 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 164 transitions, 556 flow [2022-11-25 16:50:16,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 16:50:16,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 16:50:16,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1449 transitions. [2022-11-25 16:50:16,079 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4935286103542234 [2022-11-25 16:50:16,080 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1449 transitions. [2022-11-25 16:50:16,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1449 transitions. [2022-11-25 16:50:16,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:50:16,088 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1449 transitions. [2022-11-25 16:50:16,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 724.5) internal successors, (1449), 2 states have internal predecessors, (1449), 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) [2022-11-25 16:50:16,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1468.0) internal successors, (4404), 3 states have internal predecessors, (4404), 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) [2022-11-25 16:50:16,119 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1468.0) internal successors, (4404), 3 states have internal predecessors, (4404), 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) [2022-11-25 16:50:16,121 INFO L175 Difference]: Start difference. First operand has 219 places, 230 transitions, 478 flow. Second operand 2 states and 1449 transitions. [2022-11-25 16:50:16,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 164 transitions, 556 flow [2022-11-25 16:50:16,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 164 transitions, 544 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-25 16:50:16,165 INFO L231 Difference]: Finished difference. Result has 151 places, 163 transitions, 331 flow [2022-11-25 16:50:16,167 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1468, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=331, PETRI_PLACES=151, PETRI_TRANSITIONS=163} [2022-11-25 16:50:16,172 INFO L288 CegarLoopForPetriNet]: 219 programPoint places, -68 predicate places. [2022-11-25 16:50:16,172 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 163 transitions, 331 flow [2022-11-25 16:50:16,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 639.5) internal successors, (1279), 2 states have internal predecessors, (1279), 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) [2022-11-25 16:50:16,175 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:50:16,175 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:50:16,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 16:50:16,177 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-25 16:50:16,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:50:16,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1380416980, now seen corresponding path program 1 times [2022-11-25 16:50:16,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:50:16,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219664050] [2022-11-25 16:50:16,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:50:16,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:50:16,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:50:17,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:50:17,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:50:17,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219664050] [2022-11-25 16:50:17,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219664050] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:50:17,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:50:17,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:50:17,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207596777] [2022-11-25 16:50:17,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:50:17,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:50:17,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:50:17,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:50:17,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:50:18,090 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 620 out of 1468 [2022-11-25 16:50:18,096 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 163 transitions, 331 flow. Second operand has 5 states, 5 states have (on average 622.6) internal successors, (3113), 5 states have internal predecessors, (3113), 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) [2022-11-25 16:50:18,096 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:50:18,096 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 620 of 1468 [2022-11-25 16:50:18,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand