./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-node-subst.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_2a68effc-d38c-4fca-a167-4227c423a5a2/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a68effc-d38c-4fca-a167-4227c423a5a2/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_2a68effc-d38c-4fca-a167-4227c423a5a2/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a68effc-d38c-4fca-a167-4227c423a5a2/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a68effc-d38c-4fca-a167-4227c423a5a2/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_2a68effc-d38c-4fca-a167-4227c423a5a2/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 97832baecac12bd55b66fbc3c6c38a25db85e9dc70cfa8f34b5e7a9e59086f06 --- 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 18:15:28,540 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:15:28,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:15:28,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:15:28,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:15:28,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:15:28,582 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:15:28,588 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:15:28,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:15:28,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:15:28,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:15:28,598 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:15:28,598 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:15:28,599 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:15:28,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:15:28,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:15:28,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:15:28,603 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:15:28,604 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:15:28,606 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:15:28,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:15:28,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:15:28,616 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:15:28,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:15:28,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:15:28,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:15:28,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:15:28,632 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:15:28,633 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:15:28,633 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:15:28,634 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:15:28,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:15:28,635 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:15:28,636 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:15:28,637 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:15:28,637 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:15:28,638 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:15:28,638 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:15:28,643 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:15:28,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:15:28,645 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:15:28,646 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a68effc-d38c-4fca-a167-4227c423a5a2/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 18:15:28,680 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:15:28,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:15:28,681 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:15:28,681 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:15:28,682 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:15:28,682 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:15:28,686 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:15:28,686 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:15:28,686 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:15:28,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:15:28,688 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:15:28,688 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:15:28,688 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:15:28,688 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:15:28,689 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:15:28,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:15:28,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:15:28,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:15:28,690 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 18:15:28,690 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:15:28,690 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:15:28,690 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:15:28,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:15:28,691 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:15:28,691 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:15:28,692 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:15:28,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:15:28,692 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:15:28,693 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:15:28,693 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:15:28,693 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:15:28,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:15:28,694 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:15:28,694 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:15:28,694 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:15:28,694 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:15:28,695 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_2a68effc-d38c-4fca-a167-4227c423a5a2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a68effc-d38c-4fca-a167-4227c423a5a2/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97832baecac12bd55b66fbc3c6c38a25db85e9dc70cfa8f34b5e7a9e59086f06 [2022-11-25 18:15:29,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:15:29,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:15:29,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:15:29,048 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:15:29,048 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:15:29,049 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a68effc-d38c-4fca-a167-4227c423a5a2/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2022-11-25 18:15:32,051 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:15:32,330 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:15:32,342 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a68effc-d38c-4fca-a167-4227c423a5a2/sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2022-11-25 18:15:32,351 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a68effc-d38c-4fca-a167-4227c423a5a2/bin/uautomizer-ZsLfNo2U6R/data/19e236d19/b9ca9ed659354e6fa79b2eb6e883d267/FLAG3424e1159 [2022-11-25 18:15:32,366 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a68effc-d38c-4fca-a167-4227c423a5a2/bin/uautomizer-ZsLfNo2U6R/data/19e236d19/b9ca9ed659354e6fa79b2eb6e883d267 [2022-11-25 18:15:32,369 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:15:32,371 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:15:32,372 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:15:32,372 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:15:32,376 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:15:32,376 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:15:32" (1/1) ... [2022-11-25 18:15:32,377 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45f647a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:32, skipping insertion in model container [2022-11-25 18:15:32,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:15:32" (1/1) ... [2022-11-25 18:15:32,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:15:32,405 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:15:32,663 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_2a68effc-d38c-4fca-a167-4227c423a5a2/sv-benchmarks/c/weaver/chl-node-subst.wvr.c[3996,4009] [2022-11-25 18:15:32,689 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:15:32,703 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:15:32,747 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_2a68effc-d38c-4fca-a167-4227c423a5a2/sv-benchmarks/c/weaver/chl-node-subst.wvr.c[3996,4009] [2022-11-25 18:15:32,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:15:32,768 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:15:32,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:32 WrapperNode [2022-11-25 18:15:32,768 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:15:32,769 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:15:32,769 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:15:32,770 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:15:32,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:32" (1/1) ... [2022-11-25 18:15:32,804 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:32" (1/1) ... [2022-11-25 18:15:32,872 INFO L138 Inliner]: procedures = 27, calls = 66, calls flagged for inlining = 22, calls inlined = 34, statements flattened = 799 [2022-11-25 18:15:32,872 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:15:32,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:15:32,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:15:32,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:15:32,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:32" (1/1) ... [2022-11-25 18:15:32,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:32" (1/1) ... [2022-11-25 18:15:32,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:32" (1/1) ... [2022-11-25 18:15:32,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:32" (1/1) ... [2022-11-25 18:15:32,967 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:32" (1/1) ... [2022-11-25 18:15:32,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:32" (1/1) ... [2022-11-25 18:15:32,983 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:32" (1/1) ... [2022-11-25 18:15:32,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:32" (1/1) ... [2022-11-25 18:15:33,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:15:33,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:15:33,005 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:15:33,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:15:33,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:32" (1/1) ... [2022-11-25 18:15:33,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:15:33,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a68effc-d38c-4fca-a167-4227c423a5a2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:15:33,053 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a68effc-d38c-4fca-a167-4227c423a5a2/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:15:33,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a68effc-d38c-4fca-a167-4227c423a5a2/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:15:33,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:15:33,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:15:33,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:15:33,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 18:15:33,111 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 18:15:33,112 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 18:15:33,112 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 18:15:33,113 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 18:15:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-25 18:15:33,113 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-25 18:15:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:15:33,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 18:15:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:15:33,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:15:33,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:15:33,116 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 18:15:33,368 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:15:33,371 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:15:34,714 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:15:34,736 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:15:34,737 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-25 18:15:34,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:15:34 BoogieIcfgContainer [2022-11-25 18:15:34,743 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:15:34,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:15:34,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:15:34,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:15:34,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:15:32" (1/3) ... [2022-11-25 18:15:34,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4528db1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:15:34, skipping insertion in model container [2022-11-25 18:15:34,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:15:32" (2/3) ... [2022-11-25 18:15:34,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4528db1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:15:34, skipping insertion in model container [2022-11-25 18:15:34,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:15:34" (3/3) ... [2022-11-25 18:15:34,756 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-subst.wvr.c [2022-11-25 18:15:34,765 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 18:15:34,775 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:15:34,776 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 119 error locations. [2022-11-25 18:15:34,776 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 18:15:34,991 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-25 18:15:35,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1017 places, 1055 transitions, 2134 flow [2022-11-25 18:15:35,838 INFO L130 PetriNetUnfolder]: 48/1052 cut-off events. [2022-11-25 18:15:35,839 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-25 18:15:35,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1065 conditions, 1052 events. 48/1052 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2224 event pairs, 0 based on Foata normal form. 0/885 useless extension candidates. Maximal degree in co-relation 830. Up to 2 conditions per place. [2022-11-25 18:15:35,864 INFO L82 GeneralOperation]: Start removeDead. Operand has 1017 places, 1055 transitions, 2134 flow [2022-11-25 18:15:35,888 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 991 places, 1026 transitions, 2070 flow [2022-11-25 18:15:35,892 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 18:15:35,924 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 991 places, 1026 transitions, 2070 flow [2022-11-25 18:15:35,932 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 991 places, 1026 transitions, 2070 flow [2022-11-25 18:15:35,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 991 places, 1026 transitions, 2070 flow [2022-11-25 18:15:36,400 INFO L130 PetriNetUnfolder]: 45/1026 cut-off events. [2022-11-25 18:15:36,401 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-25 18:15:36,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1039 conditions, 1026 events. 45/1026 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2186 event pairs, 0 based on Foata normal form. 0/863 useless extension candidates. Maximal degree in co-relation 830. Up to 2 conditions per place. [2022-11-25 18:15:36,474 INFO L119 LiptonReduction]: Number of co-enabled transitions 160512 [2022-11-25 18:16:37,449 INFO L134 LiptonReduction]: Checked pairs total: 1201513 [2022-11-25 18:16:37,450 INFO L136 LiptonReduction]: Total number of compositions: 1642 [2022-11-25 18:16:37,467 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:16:37,474 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;@6f76fc42, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:16:37,474 INFO L358 AbstractCegarLoop]: Starting to check reachability of 197 error locations. [2022-11-25 18:16:37,476 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-25 18:16:37,477 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:16:37,477 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:16:37,477 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 18:16:37,478 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-25 18:16:37,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:16:37,484 INFO L85 PathProgramCache]: Analyzing trace with hash 4026, now seen corresponding path program 1 times [2022-11-25 18:16:37,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:16:37,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110161038] [2022-11-25 18:16:37,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:16:37,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:16:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:16:37,618 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 18:16:37,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:16:37,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110161038] [2022-11-25 18:16:37,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110161038] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:16:37,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:16:37,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 18:16:37,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470043199] [2022-11-25 18:16:37,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:16:37,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 18:16:37,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:16:37,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 18:16:37,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 18:16:37,670 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1019 out of 2697 [2022-11-25 18:16:37,679 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 272 transitions, 562 flow. Second operand has 2 states, 2 states have (on average 1019.5) internal successors, (2039), 2 states have internal predecessors, (2039), 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 18:16:37,679 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:16:37,680 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1019 of 2697 [2022-11-25 18:16:37,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:17:06,420 INFO L130 PetriNetUnfolder]: 137262/228421 cut-off events. [2022-11-25 18:17:06,420 INFO L131 PetriNetUnfolder]: For 2181/2181 co-relation queries the response was YES. [2022-11-25 18:17:06,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 417774 conditions, 228421 events. 137262/228421 cut-off events. For 2181/2181 co-relation queries the response was YES. Maximal size of possible extension queue 5105. Compared 2281489 event pairs, 125496 based on Foata normal form. 5881/218756 useless extension candidates. Maximal degree in co-relation 402464. Up to 187396 conditions per place. [2022-11-25 18:17:08,229 INFO L137 encePairwiseOnDemand]: 2594/2697 looper letters, 104 selfloop transitions, 0 changer transitions 1/169 dead transitions. [2022-11-25 18:17:08,230 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 169 transitions, 566 flow [2022-11-25 18:17:08,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 18:17:08,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 18:17:08,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2246 transitions. [2022-11-25 18:17:08,258 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41638857990359657 [2022-11-25 18:17:08,259 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 2246 transitions. [2022-11-25 18:17:08,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 2246 transitions. [2022-11-25 18:17:08,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:17:08,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 2246 transitions. [2022-11-25 18:17:08,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 1123.0) internal successors, (2246), 2 states have internal predecessors, (2246), 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 18:17:08,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 2697.0) internal successors, (8091), 3 states have internal predecessors, (8091), 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 18:17:08,307 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 2697.0) internal successors, (8091), 3 states have internal predecessors, (8091), 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 18:17:08,309 INFO L175 Difference]: Start difference. First operand has 270 places, 272 transitions, 562 flow. Second operand 2 states and 2246 transitions. [2022-11-25 18:17:08,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 169 transitions, 566 flow [2022-11-25 18:17:08,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 169 transitions, 554 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-25 18:17:08,491 INFO L231 Difference]: Finished difference. Result has 162 places, 168 transitions, 341 flow [2022-11-25 18:17:08,494 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=2697, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=341, PETRI_PLACES=162, PETRI_TRANSITIONS=168} [2022-11-25 18:17:08,497 INFO L288 CegarLoopForPetriNet]: 270 programPoint places, -108 predicate places. [2022-11-25 18:17:08,498 INFO L495 AbstractCegarLoop]: Abstraction has has 162 places, 168 transitions, 341 flow [2022-11-25 18:17:08,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1019.5) internal successors, (2039), 2 states have internal predecessors, (2039), 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 18:17:08,499 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:17:08,500 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:17:08,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:17:08,501 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 193 more)] === [2022-11-25 18:17:08,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:17:08,501 INFO L85 PathProgramCache]: Analyzing trace with hash -947059665, now seen corresponding path program 1 times [2022-11-25 18:17:08,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:17:08,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986780107] [2022-11-25 18:17:08,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:17:08,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:17:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:17:09,007 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 18:17:09,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:17:09,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986780107] [2022-11-25 18:17:09,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986780107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:17:09,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:17:09,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 18:17:09,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734049598] [2022-11-25 18:17:09,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:17:09,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:17:09,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:17:09,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:17:09,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:17:09,149 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1007 out of 2697 [2022-11-25 18:17:09,153 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 168 transitions, 341 flow. Second operand has 3 states, 3 states have (on average 1010.6666666666666) internal successors, (3032), 3 states have internal predecessors, (3032), 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 18:17:09,153 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:17:09,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1007 of 2697 [2022-11-25 18:17:09,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand