./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8bf87bb-21a9-4f43-b069-434989c39c07/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8bf87bb-21a9-4f43-b069-434989c39c07/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_d8bf87bb-21a9-4f43-b069-434989c39c07/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8bf87bb-21a9-4f43-b069-434989c39c07/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8bf87bb-21a9-4f43-b069-434989c39c07/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_d8bf87bb-21a9-4f43-b069-434989c39c07/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 98c397d7a260fe673f9e4655b5dca942c114f9b11115010a8eef60e068615ab1 --- 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 18:13:13,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:13:13,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:13:13,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:13:13,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:13:13,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:13:13,454 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:13:13,457 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:13:13,459 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:13:13,466 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:13:13,467 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:13:13,468 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:13:13,468 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:13:13,469 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:13:13,470 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:13:13,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:13:13,473 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:13:13,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:13:13,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:13:13,486 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:13:13,492 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:13:13,495 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:13:13,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:13:13,499 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:13:13,508 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:13:13,511 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:13:13,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:13:13,513 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:13:13,515 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:13:13,516 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:13:13,517 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:13:13,518 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:13:13,520 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:13:13,520 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:13:13,522 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:13:13,522 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:13:13,524 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:13:13,524 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:13:13,525 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:13:13,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:13:13,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:13:13,528 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8bf87bb-21a9-4f43-b069-434989c39c07/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 18:13:13,558 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:13:13,558 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:13:13,558 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:13:13,559 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:13:13,560 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:13:13,560 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:13:13,561 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:13:13,561 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:13:13,561 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:13:13,562 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:13:13,563 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:13:13,563 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:13:13,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:13:13,564 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:13:13,564 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:13:13,564 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:13:13,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:13:13,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:13:13,565 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 18:13:13,565 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:13:13,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:13:13,566 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:13:13,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:13:13,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:13:13,568 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:13:13,569 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:13:13,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:13:13,569 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:13:13,570 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:13:13,570 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:13:13,571 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:13:13,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:13:13,571 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:13:13,572 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:13:13,572 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:13:13,572 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:13:13,572 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_d8bf87bb-21a9-4f43-b069-434989c39c07/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8bf87bb-21a9-4f43-b069-434989c39c07/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98c397d7a260fe673f9e4655b5dca942c114f9b11115010a8eef60e068615ab1 [2022-11-25 18:13:13,912 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:13:13,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:13:13,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:13:13,941 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:13:13,941 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:13:13,943 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8bf87bb-21a9-4f43-b069-434989c39c07/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/weaver/chl-word-subst.wvr.c [2022-11-25 18:13:17,092 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:13:17,393 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:13:17,394 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8bf87bb-21a9-4f43-b069-434989c39c07/sv-benchmarks/c/weaver/chl-word-subst.wvr.c [2022-11-25 18:13:17,402 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8bf87bb-21a9-4f43-b069-434989c39c07/bin/uautomizer-ZsLfNo2U6R/data/3e1ab491d/c5d639fa125e47f89fe71bef0c432ad6/FLAG6420035bc [2022-11-25 18:13:17,419 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8bf87bb-21a9-4f43-b069-434989c39c07/bin/uautomizer-ZsLfNo2U6R/data/3e1ab491d/c5d639fa125e47f89fe71bef0c432ad6 [2022-11-25 18:13:17,422 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:13:17,424 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:13:17,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:13:17,426 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:13:17,430 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:13:17,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:13:17" (1/1) ... [2022-11-25 18:13:17,432 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@564dd3e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:17, skipping insertion in model container [2022-11-25 18:13:17,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:13:17" (1/1) ... [2022-11-25 18:13:17,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:13:17,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:13:17,721 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_d8bf87bb-21a9-4f43-b069-434989c39c07/sv-benchmarks/c/weaver/chl-word-subst.wvr.c[3345,3358] [2022-11-25 18:13:17,728 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:13:17,741 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:13:17,792 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_d8bf87bb-21a9-4f43-b069-434989c39c07/sv-benchmarks/c/weaver/chl-word-subst.wvr.c[3345,3358] [2022-11-25 18:13:17,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:13:17,816 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:13:17,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:17 WrapperNode [2022-11-25 18:13:17,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:13:17,818 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:13:17,819 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:13:17,819 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:13:17,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:17" (1/1) ... [2022-11-25 18:13:17,846 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:17" (1/1) ... [2022-11-25 18:13:17,895 INFO L138 Inliner]: procedures = 25, calls = 45, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 268 [2022-11-25 18:13:17,896 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:13:17,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:13:17,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:13:17,897 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:13:17,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:17" (1/1) ... [2022-11-25 18:13:17,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:17" (1/1) ... [2022-11-25 18:13:17,917 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:17" (1/1) ... [2022-11-25 18:13:17,918 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:17" (1/1) ... [2022-11-25 18:13:17,967 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:17" (1/1) ... [2022-11-25 18:13:17,974 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:17" (1/1) ... [2022-11-25 18:13:17,978 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:17" (1/1) ... [2022-11-25 18:13:17,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:17" (1/1) ... [2022-11-25 18:13:18,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:13:18,005 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:13:18,005 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:13:18,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:13:18,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:17" (1/1) ... [2022-11-25 18:13:18,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:13:18,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8bf87bb-21a9-4f43-b069-434989c39c07/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:13:18,091 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8bf87bb-21a9-4f43-b069-434989c39c07/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:13:18,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8bf87bb-21a9-4f43-b069-434989c39c07/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:13:18,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:13:18,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:13:18,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:13:18,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 18:13:18,158 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 18:13:18,159 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 18:13:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 18:13:18,160 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 18:13:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-25 18:13:18,160 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-25 18:13:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:13:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 18:13:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:13:18,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:13:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:13:18,163 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 18:13:18,308 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:13:18,310 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:13:19,341 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:13:19,358 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:13:19,358 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-25 18:13:19,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:13:19 BoogieIcfgContainer [2022-11-25 18:13:19,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:13:19,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:13:19,365 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:13:19,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:13:19,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:13:17" (1/3) ... [2022-11-25 18:13:19,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@547869c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:13:19, skipping insertion in model container [2022-11-25 18:13:19,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:13:17" (2/3) ... [2022-11-25 18:13:19,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@547869c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:13:19, skipping insertion in model container [2022-11-25 18:13:19,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:13:19" (3/3) ... [2022-11-25 18:13:19,373 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-subst.wvr.c [2022-11-25 18:13:19,383 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 18:13:19,395 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:13:19,395 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 80 error locations. [2022-11-25 18:13:19,395 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 18:13:19,667 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-25 18:13:19,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 645 places, 668 transitions, 1360 flow [2022-11-25 18:13:20,109 INFO L130 PetriNetUnfolder]: 33/665 cut-off events. [2022-11-25 18:13:20,109 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-25 18:13:20,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 678 conditions, 665 events. 33/665 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1725 event pairs, 0 based on Foata normal form. 0/552 useless extension candidates. Maximal degree in co-relation 481. Up to 3 conditions per place. [2022-11-25 18:13:20,130 INFO L82 GeneralOperation]: Start removeDead. Operand has 645 places, 668 transitions, 1360 flow [2022-11-25 18:13:20,152 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 621 places, 642 transitions, 1302 flow [2022-11-25 18:13:20,156 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 18:13:20,193 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 621 places, 642 transitions, 1302 flow [2022-11-25 18:13:20,195 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 621 places, 642 transitions, 1302 flow [2022-11-25 18:13:20,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 621 places, 642 transitions, 1302 flow [2022-11-25 18:13:20,466 INFO L130 PetriNetUnfolder]: 31/642 cut-off events. [2022-11-25 18:13:20,466 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-25 18:13:20,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 655 conditions, 642 events. 31/642 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1708 event pairs, 0 based on Foata normal form. 0/532 useless extension candidates. Maximal degree in co-relation 481. Up to 3 conditions per place. [2022-11-25 18:13:20,518 INFO L119 LiptonReduction]: Number of co-enabled transitions 89910 [2022-11-25 18:13:52,779 INFO L134 LiptonReduction]: Checked pairs total: 1070204 [2022-11-25 18:13:52,779 INFO L136 LiptonReduction]: Total number of compositions: 817 [2022-11-25 18:13:52,797 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:13:52,804 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;@1c2726e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:13:52,804 INFO L358 AbstractCegarLoop]: Starting to check reachability of 140 error locations. [2022-11-25 18:13:52,806 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-25 18:13:52,807 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:13:52,807 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:13:52,808 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 18:13:52,808 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2022-11-25 18:13:52,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:13:52,814 INFO L85 PathProgramCache]: Analyzing trace with hash 2518, now seen corresponding path program 1 times [2022-11-25 18:13:52,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:13:52,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115730037] [2022-11-25 18:13:52,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:13:52,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:13:52,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:13:52,935 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 18:13:52,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:13:52,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115730037] [2022-11-25 18:13:52,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115730037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:13:52,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:13:52,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 18:13:52,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45678295] [2022-11-25 18:13:52,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:13:52,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:13:52,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:13:52,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:13:52,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:13:52,982 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 647 out of 1485 [2022-11-25 18:13:52,988 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 232 transitions, 482 flow. Second operand has 2 states, 2 states have (on average 647.5) internal successors, (1295), 2 states have internal predecessors, (1295), 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 18:13:52,988 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:13:52,989 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 647 of 1485 [2022-11-25 18:13:52,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:14:16,262 INFO L130 PetriNetUnfolder]: 138192/232386 cut-off events. [2022-11-25 18:14:16,263 INFO L131 PetriNetUnfolder]: For 2387/2387 co-relation queries the response was YES. [2022-11-25 18:14:16,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 416863 conditions, 232386 events. 138192/232386 cut-off events. For 2387/2387 co-relation queries the response was YES. Maximal size of possible extension queue 4854. Compared 2304789 event pairs, 111044 based on Foata normal form. 5430/206761 useless extension candidates. Maximal degree in co-relation 401848. Up to 182670 conditions per place. [2022-11-25 18:14:18,132 INFO L137 encePairwiseOnDemand]: 1417/1485 looper letters, 104 selfloop transitions, 0 changer transitions 1/164 dead transitions. [2022-11-25 18:14:18,133 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 164 transitions, 556 flow [2022-11-25 18:14:18,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:14:18,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 18:14:18,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1467 transitions. [2022-11-25 18:14:18,161 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49393939393939396 [2022-11-25 18:14:18,163 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1467 transitions. [2022-11-25 18:14:18,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1467 transitions. [2022-11-25 18:14:18,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:14:18,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1467 transitions. [2022-11-25 18:14:18,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 733.5) internal successors, (1467), 2 states have internal predecessors, (1467), 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 18:14:18,196 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1485.0) internal successors, (4455), 3 states have internal predecessors, (4455), 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 18:14:18,199 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1485.0) internal successors, (4455), 3 states have internal predecessors, (4455), 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 18:14:18,202 INFO L175 Difference]: Start difference. First operand has 221 places, 232 transitions, 482 flow. Second operand 2 states and 1467 transitions. [2022-11-25 18:14:18,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 164 transitions, 556 flow [2022-11-25 18:14:18,234 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 18:14:18,240 INFO L231 Difference]: Finished difference. Result has 151 places, 163 transitions, 331 flow [2022-11-25 18:14:18,242 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1485, 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 18:14:18,249 INFO L288 CegarLoopForPetriNet]: 221 programPoint places, -70 predicate places. [2022-11-25 18:14:18,249 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 163 transitions, 331 flow [2022-11-25 18:14:18,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 647.5) internal successors, (1295), 2 states have internal predecessors, (1295), 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 18:14:18,252 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:14:18,252 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:14:18,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:14:18,254 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 136 more)] === [2022-11-25 18:14:18,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:14:18,270 INFO L85 PathProgramCache]: Analyzing trace with hash -292511665, now seen corresponding path program 1 times [2022-11-25 18:14:18,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:14:18,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566014283] [2022-11-25 18:14:18,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:14:18,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:14:18,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:14:19,125 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 18:14:19,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:14:19,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566014283] [2022-11-25 18:14:19,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566014283] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:14:19,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:14:19,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 18:14:19,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871243647] [2022-11-25 18:14:19,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:14:19,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:14:19,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:14:19,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:14:19,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:14:19,901 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 628 out of 1485 [2022-11-25 18:14:19,907 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 163 transitions, 331 flow. Second operand has 5 states, 5 states have (on average 630.6) internal successors, (3153), 5 states have internal predecessors, (3153), 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 18:14:19,907 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:14:19,907 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 628 of 1485 [2022-11-25 18:14:19,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand