./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b 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_66904697-7a06-497e-a90c-e9806da59cb1/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66904697-7a06-497e-a90c-e9806da59cb1/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66904697-7a06-497e-a90c-e9806da59cb1/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66904697-7a06-497e-a90c-e9806da59cb1/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66904697-7a06-497e-a90c-e9806da59cb1/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66904697-7a06-497e-a90c-e9806da59cb1/bin/uautomizer-ug76WZFUDN --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 57b9f50bcc1a62fff86b613ffbbe182d8b5828efa44efacd776b022a56af4d4d --- 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-6b4ec56 [2022-11-20 11:38:19,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:38:19,625 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:38:19,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:38:19,646 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:38:19,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:38:19,648 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:38:19,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:38:19,652 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:38:19,653 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:38:19,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:38:19,656 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:38:19,657 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:38:19,658 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:38:19,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:38:19,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:38:19,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:38:19,663 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:38:19,665 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:38:19,667 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:38:19,669 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:38:19,671 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:38:19,672 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:38:19,673 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:38:19,677 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:38:19,678 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:38:19,678 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:38:19,679 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:38:19,680 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:38:19,681 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:38:19,682 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:38:19,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:38:19,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:38:19,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:38:19,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:38:19,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:38:19,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:38:19,688 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:38:19,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:38:19,689 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:38:19,690 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:38:19,691 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66904697-7a06-497e-a90c-e9806da59cb1/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 11:38:19,715 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:38:19,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:38:19,719 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:38:19,720 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:38:19,721 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:38:19,721 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:38:19,722 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:38:19,722 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:38:19,722 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:38:19,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:38:19,724 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:38:19,724 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:38:19,724 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:38:19,725 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:38:19,725 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:38:19,725 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:38:19,725 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:38:19,726 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:38:19,726 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 11:38:19,726 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:38:19,726 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:38:19,727 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:38:19,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:38:19,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:38:19,727 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:38:19,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:38:19,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:38:19,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:38:19,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:38:19,729 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:38:19,729 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:38:19,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:38:19,730 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:38:19,730 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:38:19,730 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:38:19,730 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_66904697-7a06-497e-a90c-e9806da59cb1/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66904697-7a06-497e-a90c-e9806da59cb1/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57b9f50bcc1a62fff86b613ffbbe182d8b5828efa44efacd776b022a56af4d4d [2022-11-20 11:38:20,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:38:20,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:38:20,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:38:20,050 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:38:20,051 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:38:20,052 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66904697-7a06-497e-a90c-e9806da59cb1/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c [2022-11-20 11:38:23,382 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:38:23,587 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:38:23,588 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66904697-7a06-497e-a90c-e9806da59cb1/sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c [2022-11-20 11:38:23,595 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66904697-7a06-497e-a90c-e9806da59cb1/bin/uautomizer-ug76WZFUDN/data/d77845d97/da7e9416c3cc4214b3c262e9fa5c7464/FLAG84cb35eec [2022-11-20 11:38:23,612 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66904697-7a06-497e-a90c-e9806da59cb1/bin/uautomizer-ug76WZFUDN/data/d77845d97/da7e9416c3cc4214b3c262e9fa5c7464 [2022-11-20 11:38:23,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:38:23,622 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:38:23,627 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:38:23,627 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:38:23,631 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:38:23,632 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:38:23" (1/1) ... [2022-11-20 11:38:23,633 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@454dcba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:23, skipping insertion in model container [2022-11-20 11:38:23,633 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:38:23" (1/1) ... [2022-11-20 11:38:23,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:38:23,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:38:23,878 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_66904697-7a06-497e-a90c-e9806da59cb1/sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c[3526,3539] [2022-11-20 11:38:23,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:38:23,890 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:38:23,923 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_66904697-7a06-497e-a90c-e9806da59cb1/sv-benchmarks/c/weaver/parallel-ticket-4.wvr.c[3526,3539] [2022-11-20 11:38:23,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:38:23,940 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:38:23,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:23 WrapperNode [2022-11-20 11:38:23,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:38:23,941 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:38:23,942 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:38:23,942 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:38:23,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:23" (1/1) ... [2022-11-20 11:38:23,961 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:23" (1/1) ... [2022-11-20 11:38:23,991 INFO L138 Inliner]: procedures = 23, calls = 70, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 408 [2022-11-20 11:38:23,992 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:38:23,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:38:23,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:38:23,993 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:38:24,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:23" (1/1) ... [2022-11-20 11:38:24,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:23" (1/1) ... [2022-11-20 11:38:24,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:23" (1/1) ... [2022-11-20 11:38:24,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:23" (1/1) ... [2022-11-20 11:38:24,021 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:23" (1/1) ... [2022-11-20 11:38:24,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:23" (1/1) ... [2022-11-20 11:38:24,026 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:23" (1/1) ... [2022-11-20 11:38:24,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:23" (1/1) ... [2022-11-20 11:38:24,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:38:24,032 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:38:24,032 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:38:24,033 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:38:24,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:23" (1/1) ... [2022-11-20 11:38:24,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:38:24,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66904697-7a06-497e-a90c-e9806da59cb1/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:38:24,084 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66904697-7a06-497e-a90c-e9806da59cb1/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:38:24,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66904697-7a06-497e-a90c-e9806da59cb1/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:38:24,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:38:24,131 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 11:38:24,131 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 11:38:24,131 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 11:38:24,131 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 11:38:24,133 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 11:38:24,133 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 11:38:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-20 11:38:24,134 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-20 11:38:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:38:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:38:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:38:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 11:38:24,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 11:38:24,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:38:24,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:38:24,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:38:24,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:38:24,137 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:38:24,379 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:38:24,381 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:38:25,033 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:38:25,305 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:38:25,305 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:38:25,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:38:25 BoogieIcfgContainer [2022-11-20 11:38:25,310 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:38:25,316 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:38:25,316 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:38:25,319 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:38:25,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:38:23" (1/3) ... [2022-11-20 11:38:25,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@580db6ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:38:25, skipping insertion in model container [2022-11-20 11:38:25,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:38:23" (2/3) ... [2022-11-20 11:38:25,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@580db6ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:38:25, skipping insertion in model container [2022-11-20 11:38:25,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:38:25" (3/3) ... [2022-11-20 11:38:25,325 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-4.wvr.c [2022-11-20 11:38:25,335 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:38:25,347 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:38:25,348 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 62 error locations. [2022-11-20 11:38:25,348 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:38:25,494 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-20 11:38:25,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 292 places, 284 transitions, 600 flow [2022-11-20 11:38:25,768 INFO L130 PetriNetUnfolder]: 5/280 cut-off events. [2022-11-20 11:38:25,768 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-20 11:38:25,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 280 events. 5/280 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 291 event pairs, 0 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 206. Up to 2 conditions per place. [2022-11-20 11:38:25,775 INFO L82 GeneralOperation]: Start removeDead. Operand has 292 places, 284 transitions, 600 flow [2022-11-20 11:38:25,788 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 267 places, 258 transitions, 540 flow [2022-11-20 11:38:25,808 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:38:25,816 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;@66b9eb66, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:38:25,818 INFO L358 AbstractCegarLoop]: Starting to check reachability of 109 error locations. [2022-11-20 11:38:25,828 INFO L130 PetriNetUnfolder]: 0/28 cut-off events. [2022-11-20 11:38:25,828 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:38:25,829 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:38:25,830 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:38:25,831 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-20 11:38:25,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:25,838 INFO L85 PathProgramCache]: Analyzing trace with hash 586584571, now seen corresponding path program 1 times [2022-11-20 11:38:25,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:25,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615123231] [2022-11-20 11:38:25,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:25,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:25,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:26,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:38:26,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:38:26,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615123231] [2022-11-20 11:38:26,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615123231] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:38:26,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:38:26,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:38:26,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617479417] [2022-11-20 11:38:26,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:38:26,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:38:26,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:38:26,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:38:26,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:38:26,122 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 284 [2022-11-20 11:38:26,127 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 258 transitions, 540 flow. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 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) [2022-11-20 11:38:26,127 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:38:26,127 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 284 [2022-11-20 11:38:26,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:38:27,484 INFO L130 PetriNetUnfolder]: 2442/4251 cut-off events. [2022-11-20 11:38:27,484 INFO L131 PetriNetUnfolder]: For 675/1134 co-relation queries the response was YES. [2022-11-20 11:38:27,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8323 conditions, 4251 events. 2442/4251 cut-off events. For 675/1134 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 24870 event pairs, 2439 based on Foata normal form. 1/4123 useless extension candidates. Maximal degree in co-relation 7924. Up to 3535 conditions per place. [2022-11-20 11:38:27,540 INFO L137 encePairwiseOnDemand]: 237/284 looper letters, 28 selfloop transitions, 2 changer transitions 1/213 dead transitions. [2022-11-20 11:38:27,541 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 213 transitions, 510 flow [2022-11-20 11:38:27,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:38:27,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:38:27,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 696 transitions. [2022-11-20 11:38:27,563 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8169014084507042 [2022-11-20 11:38:27,563 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 696 transitions. [2022-11-20 11:38:27,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 696 transitions. [2022-11-20 11:38:27,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:38:27,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 696 transitions. [2022-11-20 11:38:27,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 232.0) internal successors, (696), 3 states have internal predecessors, (696), 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) [2022-11-20 11:38:27,586 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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) [2022-11-20 11:38:27,587 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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) [2022-11-20 11:38:27,588 INFO L175 Difference]: Start difference. First operand has 267 places, 258 transitions, 540 flow. Second operand 3 states and 696 transitions. [2022-11-20 11:38:27,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 213 transitions, 510 flow [2022-11-20 11:38:27,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 213 transitions, 494 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-11-20 11:38:27,602 INFO L231 Difference]: Finished difference. Result has 217 places, 212 transitions, 436 flow [2022-11-20 11:38:27,604 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=436, PETRI_PLACES=217, PETRI_TRANSITIONS=212} [2022-11-20 11:38:27,610 INFO L288 CegarLoopForPetriNet]: 267 programPoint places, -50 predicate places. [2022-11-20 11:38:27,611 INFO L495 AbstractCegarLoop]: Abstraction has has 217 places, 212 transitions, 436 flow [2022-11-20 11:38:27,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 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) [2022-11-20 11:38:27,611 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:38:27,612 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:38:27,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:38:27,612 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-20 11:38:27,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:27,613 INFO L85 PathProgramCache]: Analyzing trace with hash 908172581, now seen corresponding path program 1 times [2022-11-20 11:38:27,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:27,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192099103] [2022-11-20 11:38:27,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:27,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:27,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:27,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:38:27,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:38:27,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192099103] [2022-11-20 11:38:27,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192099103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:38:27,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:38:27,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:38:27,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322778626] [2022-11-20 11:38:27,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:38:27,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:38:27,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:38:27,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:38:27,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:38:27,743 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 284 [2022-11-20 11:38:27,744 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 212 transitions, 436 flow. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 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) [2022-11-20 11:38:27,745 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:38:27,745 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 284 [2022-11-20 11:38:27,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:38:29,039 INFO L130 PetriNetUnfolder]: 2442/4249 cut-off events. [2022-11-20 11:38:29,040 INFO L131 PetriNetUnfolder]: For 156/615 co-relation queries the response was YES. [2022-11-20 11:38:29,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7977 conditions, 4249 events. 2442/4249 cut-off events. For 156/615 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 24971 event pairs, 2439 based on Foata normal form. 0/4122 useless extension candidates. Maximal degree in co-relation 7940. Up to 3535 conditions per place. [2022-11-20 11:38:29,088 INFO L137 encePairwiseOnDemand]: 281/284 looper letters, 28 selfloop transitions, 2 changer transitions 0/211 dead transitions. [2022-11-20 11:38:29,088 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 211 transitions, 494 flow [2022-11-20 11:38:29,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:38:29,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:38:29,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 652 transitions. [2022-11-20 11:38:29,091 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7652582159624414 [2022-11-20 11:38:29,091 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 652 transitions. [2022-11-20 11:38:29,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 652 transitions. [2022-11-20 11:38:29,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:38:29,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 652 transitions. [2022-11-20 11:38:29,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 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) [2022-11-20 11:38:29,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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) [2022-11-20 11:38:29,097 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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) [2022-11-20 11:38:29,097 INFO L175 Difference]: Start difference. First operand has 217 places, 212 transitions, 436 flow. Second operand 3 states and 652 transitions. [2022-11-20 11:38:29,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 211 transitions, 494 flow [2022-11-20 11:38:29,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 211 transitions, 490 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:38:29,108 INFO L231 Difference]: Finished difference. Result has 215 places, 211 transitions, 434 flow [2022-11-20 11:38:29,111 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=434, PETRI_PLACES=215, PETRI_TRANSITIONS=211} [2022-11-20 11:38:29,111 INFO L288 CegarLoopForPetriNet]: 267 programPoint places, -52 predicate places. [2022-11-20 11:38:29,112 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 211 transitions, 434 flow [2022-11-20 11:38:29,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 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) [2022-11-20 11:38:29,112 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:38:29,113 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:38:29,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:38:29,113 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-20 11:38:29,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:29,114 INFO L85 PathProgramCache]: Analyzing trace with hash -164532754, now seen corresponding path program 1 times [2022-11-20 11:38:29,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:29,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475620526] [2022-11-20 11:38:29,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:29,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:29,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:38:29,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:38:29,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475620526] [2022-11-20 11:38:29,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475620526] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:38:29,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:38:29,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:38:29,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496696639] [2022-11-20 11:38:29,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:38:29,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:38:29,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:38:29,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:38:29,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:38:29,259 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 284 [2022-11-20 11:38:29,261 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 211 transitions, 434 flow. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 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) [2022-11-20 11:38:29,261 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:38:29,261 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 284 [2022-11-20 11:38:29,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:38:30,173 INFO L130 PetriNetUnfolder]: 2442/4248 cut-off events. [2022-11-20 11:38:30,174 INFO L131 PetriNetUnfolder]: For 156/615 co-relation queries the response was YES. [2022-11-20 11:38:30,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7976 conditions, 4248 events. 2442/4248 cut-off events. For 156/615 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 25041 event pairs, 2439 based on Foata normal form. 0/4122 useless extension candidates. Maximal degree in co-relation 7932. Up to 3535 conditions per place. [2022-11-20 11:38:30,209 INFO L137 encePairwiseOnDemand]: 281/284 looper letters, 28 selfloop transitions, 2 changer transitions 0/210 dead transitions. [2022-11-20 11:38:30,210 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 210 transitions, 492 flow [2022-11-20 11:38:30,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:38:30,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:38:30,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 652 transitions. [2022-11-20 11:38:30,215 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7652582159624414 [2022-11-20 11:38:30,215 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 652 transitions. [2022-11-20 11:38:30,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 652 transitions. [2022-11-20 11:38:30,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:38:30,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 652 transitions. [2022-11-20 11:38:30,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 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) [2022-11-20 11:38:30,220 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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) [2022-11-20 11:38:30,221 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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) [2022-11-20 11:38:30,221 INFO L175 Difference]: Start difference. First operand has 215 places, 211 transitions, 434 flow. Second operand 3 states and 652 transitions. [2022-11-20 11:38:30,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 210 transitions, 492 flow [2022-11-20 11:38:30,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 210 transitions, 488 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:38:30,227 INFO L231 Difference]: Finished difference. Result has 214 places, 210 transitions, 432 flow [2022-11-20 11:38:30,228 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=432, PETRI_PLACES=214, PETRI_TRANSITIONS=210} [2022-11-20 11:38:30,230 INFO L288 CegarLoopForPetriNet]: 267 programPoint places, -53 predicate places. [2022-11-20 11:38:30,231 INFO L495 AbstractCegarLoop]: Abstraction has has 214 places, 210 transitions, 432 flow [2022-11-20 11:38:30,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 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) [2022-11-20 11:38:30,232 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:38:30,232 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:38:30,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:38:30,232 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-20 11:38:30,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:30,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1333568690, now seen corresponding path program 1 times [2022-11-20 11:38:30,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:30,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193723626] [2022-11-20 11:38:30,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:30,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:30,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:30,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:38:30,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:38:30,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193723626] [2022-11-20 11:38:30,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193723626] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:38:30,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:38:30,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:38:30,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883942307] [2022-11-20 11:38:30,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:38:30,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:38:30,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:38:30,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:38:30,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:38:30,324 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 284 [2022-11-20 11:38:30,325 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 210 transitions, 432 flow. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 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) [2022-11-20 11:38:30,325 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:38:30,326 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 284 [2022-11-20 11:38:30,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:38:31,411 INFO L130 PetriNetUnfolder]: 2442/4247 cut-off events. [2022-11-20 11:38:31,412 INFO L131 PetriNetUnfolder]: For 156/615 co-relation queries the response was YES. [2022-11-20 11:38:31,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7975 conditions, 4247 events. 2442/4247 cut-off events. For 156/615 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 25141 event pairs, 2439 based on Foata normal form. 0/4122 useless extension candidates. Maximal degree in co-relation 7924. Up to 3535 conditions per place. [2022-11-20 11:38:31,449 INFO L137 encePairwiseOnDemand]: 281/284 looper letters, 28 selfloop transitions, 2 changer transitions 0/209 dead transitions. [2022-11-20 11:38:31,449 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 209 transitions, 490 flow [2022-11-20 11:38:31,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:38:31,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:38:31,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 652 transitions. [2022-11-20 11:38:31,455 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7652582159624414 [2022-11-20 11:38:31,456 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 652 transitions. [2022-11-20 11:38:31,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 652 transitions. [2022-11-20 11:38:31,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:38:31,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 652 transitions. [2022-11-20 11:38:31,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 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) [2022-11-20 11:38:31,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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) [2022-11-20 11:38:31,462 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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) [2022-11-20 11:38:31,462 INFO L175 Difference]: Start difference. First operand has 214 places, 210 transitions, 432 flow. Second operand 3 states and 652 transitions. [2022-11-20 11:38:31,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 209 transitions, 490 flow [2022-11-20 11:38:31,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 209 transitions, 486 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:38:31,472 INFO L231 Difference]: Finished difference. Result has 213 places, 209 transitions, 430 flow [2022-11-20 11:38:31,472 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=430, PETRI_PLACES=213, PETRI_TRANSITIONS=209} [2022-11-20 11:38:31,474 INFO L288 CegarLoopForPetriNet]: 267 programPoint places, -54 predicate places. [2022-11-20 11:38:31,474 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 209 transitions, 430 flow [2022-11-20 11:38:31,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 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) [2022-11-20 11:38:31,475 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:38:31,475 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:38:31,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:38:31,476 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-20 11:38:31,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:31,477 INFO L85 PathProgramCache]: Analyzing trace with hash -2126199649, now seen corresponding path program 1 times [2022-11-20 11:38:31,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:31,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051311395] [2022-11-20 11:38:31,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:31,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:31,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:38:31,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:38:31,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051311395] [2022-11-20 11:38:31,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051311395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:38:31,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:38:31,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:38:31,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441181899] [2022-11-20 11:38:31,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:38:31,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:38:31,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:38:31,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:38:31,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:38:31,559 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 284 [2022-11-20 11:38:31,560 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 209 transitions, 430 flow. Second operand has 3 states, 3 states have (on average 199.33333333333334) internal successors, (598), 3 states have internal predecessors, (598), 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) [2022-11-20 11:38:31,561 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:38:31,561 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 284 [2022-11-20 11:38:31,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:38:32,391 INFO L130 PetriNetUnfolder]: 2442/4246 cut-off events. [2022-11-20 11:38:32,392 INFO L131 PetriNetUnfolder]: For 156/615 co-relation queries the response was YES. [2022-11-20 11:38:32,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7983 conditions, 4246 events. 2442/4246 cut-off events. For 156/615 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 25052 event pairs, 2439 based on Foata normal form. 0/4122 useless extension candidates. Maximal degree in co-relation 7925. Up to 3544 conditions per place. [2022-11-20 11:38:32,425 INFO L137 encePairwiseOnDemand]: 281/284 looper letters, 37 selfloop transitions, 2 changer transitions 0/208 dead transitions. [2022-11-20 11:38:32,426 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 208 transitions, 506 flow [2022-11-20 11:38:32,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:38:32,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:38:32,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 634 transitions. [2022-11-20 11:38:32,428 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.744131455399061 [2022-11-20 11:38:32,429 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 634 transitions. [2022-11-20 11:38:32,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 634 transitions. [2022-11-20 11:38:32,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:38:32,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 634 transitions. [2022-11-20 11:38:32,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 211.33333333333334) internal successors, (634), 3 states have internal predecessors, (634), 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) [2022-11-20 11:38:32,434 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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) [2022-11-20 11:38:32,435 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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) [2022-11-20 11:38:32,435 INFO L175 Difference]: Start difference. First operand has 213 places, 209 transitions, 430 flow. Second operand 3 states and 634 transitions. [2022-11-20 11:38:32,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 208 transitions, 506 flow [2022-11-20 11:38:32,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 208 transitions, 502 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:38:32,440 INFO L231 Difference]: Finished difference. Result has 212 places, 208 transitions, 428 flow [2022-11-20 11:38:32,440 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=428, PETRI_PLACES=212, PETRI_TRANSITIONS=208} [2022-11-20 11:38:32,441 INFO L288 CegarLoopForPetriNet]: 267 programPoint places, -55 predicate places. [2022-11-20 11:38:32,442 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 208 transitions, 428 flow [2022-11-20 11:38:32,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 199.33333333333334) internal successors, (598), 3 states have internal predecessors, (598), 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) [2022-11-20 11:38:32,442 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:38:32,443 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:38:32,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:38:32,443 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-20 11:38:32,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:32,444 INFO L85 PathProgramCache]: Analyzing trace with hash -438653172, now seen corresponding path program 1 times [2022-11-20 11:38:32,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:32,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977184109] [2022-11-20 11:38:32,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:32,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:32,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:32,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:38:32,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:38:32,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977184109] [2022-11-20 11:38:32,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977184109] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:38:32,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:38:32,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:38:32,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060573399] [2022-11-20 11:38:32,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:38:32,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:38:32,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:38:32,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:38:32,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:38:32,518 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 284 [2022-11-20 11:38:32,519 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 208 transitions, 428 flow. Second operand has 3 states, 3 states have (on average 205.33333333333334) internal successors, (616), 3 states have internal predecessors, (616), 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) [2022-11-20 11:38:32,519 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:38:32,519 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 284 [2022-11-20 11:38:32,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:38:33,527 INFO L130 PetriNetUnfolder]: 2442/4245 cut-off events. [2022-11-20 11:38:33,527 INFO L131 PetriNetUnfolder]: For 156/615 co-relation queries the response was YES. [2022-11-20 11:38:33,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7976 conditions, 4245 events. 2442/4245 cut-off events. For 156/615 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 25062 event pairs, 2439 based on Foata normal form. 0/4122 useless extension candidates. Maximal degree in co-relation 7911. Up to 3538 conditions per place. [2022-11-20 11:38:33,563 INFO L137 encePairwiseOnDemand]: 281/284 looper letters, 31 selfloop transitions, 2 changer transitions 0/207 dead transitions. [2022-11-20 11:38:33,564 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 207 transitions, 492 flow [2022-11-20 11:38:33,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:38:33,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:38:33,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 646 transitions. [2022-11-20 11:38:33,567 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7582159624413145 [2022-11-20 11:38:33,567 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 646 transitions. [2022-11-20 11:38:33,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 646 transitions. [2022-11-20 11:38:33,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:38:33,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 646 transitions. [2022-11-20 11:38:33,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 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) [2022-11-20 11:38:33,573 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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) [2022-11-20 11:38:33,574 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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) [2022-11-20 11:38:33,574 INFO L175 Difference]: Start difference. First operand has 212 places, 208 transitions, 428 flow. Second operand 3 states and 646 transitions. [2022-11-20 11:38:33,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 207 transitions, 492 flow [2022-11-20 11:38:33,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 207 transitions, 488 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:38:33,580 INFO L231 Difference]: Finished difference. Result has 211 places, 207 transitions, 426 flow [2022-11-20 11:38:33,580 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=426, PETRI_PLACES=211, PETRI_TRANSITIONS=207} [2022-11-20 11:38:33,583 INFO L288 CegarLoopForPetriNet]: 267 programPoint places, -56 predicate places. [2022-11-20 11:38:33,583 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 207 transitions, 426 flow [2022-11-20 11:38:33,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.33333333333334) internal successors, (616), 3 states have internal predecessors, (616), 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) [2022-11-20 11:38:33,585 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:38:33,585 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:38:33,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:38:33,586 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-20 11:38:33,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:33,587 INFO L85 PathProgramCache]: Analyzing trace with hash 41560757, now seen corresponding path program 1 times [2022-11-20 11:38:33,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:33,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149379241] [2022-11-20 11:38:33,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:33,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:33,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:33,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:38:33,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:38:33,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149379241] [2022-11-20 11:38:33,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149379241] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:38:33,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:38:33,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:38:33,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793428726] [2022-11-20 11:38:33,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:38:33,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:38:33,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:38:33,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:38:33,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:38:33,689 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 284 [2022-11-20 11:38:33,690 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 207 transitions, 426 flow. Second operand has 3 states, 3 states have (on average 205.33333333333334) internal successors, (616), 3 states have internal predecessors, (616), 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) [2022-11-20 11:38:33,691 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:38:33,691 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 284 [2022-11-20 11:38:33,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:38:34,652 INFO L130 PetriNetUnfolder]: 2442/4244 cut-off events. [2022-11-20 11:38:34,652 INFO L131 PetriNetUnfolder]: For 156/615 co-relation queries the response was YES. [2022-11-20 11:38:34,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7975 conditions, 4244 events. 2442/4244 cut-off events. For 156/615 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 25061 event pairs, 2439 based on Foata normal form. 0/4122 useless extension candidates. Maximal degree in co-relation 7903. Up to 3538 conditions per place. [2022-11-20 11:38:34,687 INFO L137 encePairwiseOnDemand]: 281/284 looper letters, 31 selfloop transitions, 2 changer transitions 0/206 dead transitions. [2022-11-20 11:38:34,688 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 206 transitions, 490 flow [2022-11-20 11:38:34,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:38:34,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:38:34,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 646 transitions. [2022-11-20 11:38:34,691 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7582159624413145 [2022-11-20 11:38:34,691 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 646 transitions. [2022-11-20 11:38:34,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 646 transitions. [2022-11-20 11:38:34,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:38:34,692 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 646 transitions. [2022-11-20 11:38:34,694 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 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) [2022-11-20 11:38:34,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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) [2022-11-20 11:38:34,697 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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) [2022-11-20 11:38:34,697 INFO L175 Difference]: Start difference. First operand has 211 places, 207 transitions, 426 flow. Second operand 3 states and 646 transitions. [2022-11-20 11:38:34,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 206 transitions, 490 flow [2022-11-20 11:38:34,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 206 transitions, 486 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:38:34,701 INFO L231 Difference]: Finished difference. Result has 210 places, 206 transitions, 424 flow [2022-11-20 11:38:34,702 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=424, PETRI_PLACES=210, PETRI_TRANSITIONS=206} [2022-11-20 11:38:34,703 INFO L288 CegarLoopForPetriNet]: 267 programPoint places, -57 predicate places. [2022-11-20 11:38:34,704 INFO L495 AbstractCegarLoop]: Abstraction has has 210 places, 206 transitions, 424 flow [2022-11-20 11:38:34,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.33333333333334) internal successors, (616), 3 states have internal predecessors, (616), 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) [2022-11-20 11:38:34,704 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:38:34,705 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:38:34,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:38:34,705 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-20 11:38:34,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:34,706 INFO L85 PathProgramCache]: Analyzing trace with hash 205530130, now seen corresponding path program 1 times [2022-11-20 11:38:34,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:34,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742775497] [2022-11-20 11:38:34,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:34,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:34,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:34,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:38:34,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:38:34,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742775497] [2022-11-20 11:38:34,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742775497] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:38:34,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:38:34,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:38:34,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72099087] [2022-11-20 11:38:34,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:38:34,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:38:34,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:38:34,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:38:34,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:38:34,788 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 284 [2022-11-20 11:38:34,788 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 206 transitions, 424 flow. Second operand has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 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) [2022-11-20 11:38:34,789 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:38:34,789 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 284 [2022-11-20 11:38:34,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:38:35,653 INFO L130 PetriNetUnfolder]: 2442/4243 cut-off events. [2022-11-20 11:38:35,653 INFO L131 PetriNetUnfolder]: For 156/615 co-relation queries the response was YES. [2022-11-20 11:38:35,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7976 conditions, 4243 events. 2442/4243 cut-off events. For 156/615 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 24962 event pairs, 2439 based on Foata normal form. 0/4122 useless extension candidates. Maximal degree in co-relation 7897. Up to 3540 conditions per place. [2022-11-20 11:38:35,681 INFO L137 encePairwiseOnDemand]: 281/284 looper letters, 33 selfloop transitions, 2 changer transitions 0/205 dead transitions. [2022-11-20 11:38:35,682 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 205 transitions, 492 flow [2022-11-20 11:38:35,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:38:35,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:38:35,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 639 transitions. [2022-11-20 11:38:35,688 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.75 [2022-11-20 11:38:35,688 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 639 transitions. [2022-11-20 11:38:35,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 639 transitions. [2022-11-20 11:38:35,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:38:35,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 639 transitions. [2022-11-20 11:38:35,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 213.0) internal successors, (639), 3 states have internal predecessors, (639), 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) [2022-11-20 11:38:35,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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) [2022-11-20 11:38:35,693 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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) [2022-11-20 11:38:35,693 INFO L175 Difference]: Start difference. First operand has 210 places, 206 transitions, 424 flow. Second operand 3 states and 639 transitions. [2022-11-20 11:38:35,693 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 205 transitions, 492 flow [2022-11-20 11:38:35,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 205 transitions, 488 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:38:35,697 INFO L231 Difference]: Finished difference. Result has 209 places, 205 transitions, 422 flow [2022-11-20 11:38:35,698 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=422, PETRI_PLACES=209, PETRI_TRANSITIONS=205} [2022-11-20 11:38:35,700 INFO L288 CegarLoopForPetriNet]: 267 programPoint places, -58 predicate places. [2022-11-20 11:38:35,700 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 205 transitions, 422 flow [2022-11-20 11:38:35,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 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) [2022-11-20 11:38:35,701 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:38:35,701 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:38:35,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:38:35,702 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-20 11:38:35,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:35,702 INFO L85 PathProgramCache]: Analyzing trace with hash -366239060, now seen corresponding path program 1 times [2022-11-20 11:38:35,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:35,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349923332] [2022-11-20 11:38:35,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:35,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:35,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:35,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:38:35,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:38:35,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349923332] [2022-11-20 11:38:35,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349923332] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:38:35,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:38:35,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:38:35,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174669952] [2022-11-20 11:38:35,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:38:35,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:38:35,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:38:35,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:38:35,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:38:35,745 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 284 [2022-11-20 11:38:35,746 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 205 transitions, 422 flow. Second operand has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 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) [2022-11-20 11:38:35,746 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:38:35,747 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 284 [2022-11-20 11:38:35,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:38:37,127 INFO L130 PetriNetUnfolder]: 3446/7553 cut-off events. [2022-11-20 11:38:37,127 INFO L131 PetriNetUnfolder]: For 272/2206 co-relation queries the response was YES. [2022-11-20 11:38:37,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12881 conditions, 7553 events. 3446/7553 cut-off events. For 272/2206 co-relation queries the response was YES. Maximal size of possible extension queue 364. Compared 60443 event pairs, 1640 based on Foata normal form. 5/7269 useless extension candidates. Maximal degree in co-relation 12795. Up to 2848 conditions per place. [2022-11-20 11:38:37,188 INFO L137 encePairwiseOnDemand]: 272/284 looper letters, 47 selfloop transitions, 9 changer transitions 0/225 dead transitions. [2022-11-20 11:38:37,188 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 225 transitions, 580 flow [2022-11-20 11:38:37,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:38:37,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:38:37,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 662 transitions. [2022-11-20 11:38:37,191 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7769953051643192 [2022-11-20 11:38:37,191 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 662 transitions. [2022-11-20 11:38:37,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 662 transitions. [2022-11-20 11:38:37,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:38:37,193 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 662 transitions. [2022-11-20 11:38:37,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 220.66666666666666) internal successors, (662), 3 states have internal predecessors, (662), 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) [2022-11-20 11:38:37,197 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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) [2022-11-20 11:38:37,198 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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) [2022-11-20 11:38:37,198 INFO L175 Difference]: Start difference. First operand has 209 places, 205 transitions, 422 flow. Second operand 3 states and 662 transitions. [2022-11-20 11:38:37,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 225 transitions, 580 flow [2022-11-20 11:38:37,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 225 transitions, 576 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:38:37,205 INFO L231 Difference]: Finished difference. Result has 208 places, 210 transitions, 480 flow [2022-11-20 11:38:37,205 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=480, PETRI_PLACES=208, PETRI_TRANSITIONS=210} [2022-11-20 11:38:37,206 INFO L288 CegarLoopForPetriNet]: 267 programPoint places, -59 predicate places. [2022-11-20 11:38:37,206 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 210 transitions, 480 flow [2022-11-20 11:38:37,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 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) [2022-11-20 11:38:37,207 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:38:37,207 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:38:37,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:38:37,208 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-20 11:38:37,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:37,209 INFO L85 PathProgramCache]: Analyzing trace with hash 231612809, now seen corresponding path program 1 times [2022-11-20 11:38:37,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:37,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835603637] [2022-11-20 11:38:37,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:37,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:37,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:37,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:38:37,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:38:37,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835603637] [2022-11-20 11:38:37,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835603637] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:38:37,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:38:37,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:38:37,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683205808] [2022-11-20 11:38:37,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:38:37,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:38:37,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:38:37,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:38:37,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:38:37,308 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 284 [2022-11-20 11:38:37,309 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 210 transitions, 480 flow. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 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) [2022-11-20 11:38:37,310 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:38:37,310 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 284 [2022-11-20 11:38:37,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:38:38,388 INFO L130 PetriNetUnfolder]: 3446/6246 cut-off events. [2022-11-20 11:38:38,389 INFO L131 PetriNetUnfolder]: For 2353/2851 co-relation queries the response was YES. [2022-11-20 11:38:38,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14882 conditions, 6246 events. 3446/6246 cut-off events. For 2353/2851 co-relation queries the response was YES. Maximal size of possible extension queue 332. Compared 42327 event pairs, 2186 based on Foata normal form. 1/6068 useless extension candidates. Maximal degree in co-relation 9854. Up to 5071 conditions per place. [2022-11-20 11:38:38,439 INFO L137 encePairwiseOnDemand]: 278/284 looper letters, 39 selfloop transitions, 5 changer transitions 0/216 dead transitions. [2022-11-20 11:38:38,439 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 216 transitions, 583 flow [2022-11-20 11:38:38,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:38:38,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:38:38,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 658 transitions. [2022-11-20 11:38:38,442 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7723004694835681 [2022-11-20 11:38:38,442 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 658 transitions. [2022-11-20 11:38:38,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 658 transitions. [2022-11-20 11:38:38,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:38:38,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 658 transitions. [2022-11-20 11:38:38,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 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) [2022-11-20 11:38:38,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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) [2022-11-20 11:38:38,448 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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) [2022-11-20 11:38:38,448 INFO L175 Difference]: Start difference. First operand has 208 places, 210 transitions, 480 flow. Second operand 3 states and 658 transitions. [2022-11-20 11:38:38,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 216 transitions, 583 flow [2022-11-20 11:38:38,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 216 transitions, 565 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:38:38,483 INFO L231 Difference]: Finished difference. Result has 208 places, 213 transitions, 491 flow [2022-11-20 11:38:38,485 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=491, PETRI_PLACES=208, PETRI_TRANSITIONS=213} [2022-11-20 11:38:38,486 INFO L288 CegarLoopForPetriNet]: 267 programPoint places, -59 predicate places. [2022-11-20 11:38:38,486 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 213 transitions, 491 flow [2022-11-20 11:38:38,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 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) [2022-11-20 11:38:38,487 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:38:38,487 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:38:38,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 11:38:38,487 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-20 11:38:38,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:38,488 INFO L85 PathProgramCache]: Analyzing trace with hash -515389240, now seen corresponding path program 1 times [2022-11-20 11:38:38,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:38,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319911256] [2022-11-20 11:38:38,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:38,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:38,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:38,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:38:38,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:38:38,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319911256] [2022-11-20 11:38:38,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319911256] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:38:38,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:38:38,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:38:38,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566541426] [2022-11-20 11:38:38,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:38:38,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:38:38,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:38:38,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:38:38,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:38:38,538 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 284 [2022-11-20 11:38:38,539 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 213 transitions, 491 flow. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 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) [2022-11-20 11:38:38,539 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:38:38,539 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 284 [2022-11-20 11:38:38,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:38:40,097 INFO L130 PetriNetUnfolder]: 4871/8649 cut-off events. [2022-11-20 11:38:40,097 INFO L131 PetriNetUnfolder]: For 2480/2978 co-relation queries the response was YES. [2022-11-20 11:38:40,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20717 conditions, 8649 events. 4871/8649 cut-off events. For 2480/2978 co-relation queries the response was YES. Maximal size of possible extension queue 448. Compared 61194 event pairs, 3163 based on Foata normal form. 0/8407 useless extension candidates. Maximal degree in co-relation 10763. Up to 5302 conditions per place. [2022-11-20 11:38:40,165 INFO L137 encePairwiseOnDemand]: 281/284 looper letters, 69 selfloop transitions, 2 changer transitions 0/242 dead transitions. [2022-11-20 11:38:40,166 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 242 transitions, 743 flow [2022-11-20 11:38:40,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:38:40,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:38:40,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 670 transitions. [2022-11-20 11:38:40,168 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7863849765258216 [2022-11-20 11:38:40,168 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 670 transitions. [2022-11-20 11:38:40,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 670 transitions. [2022-11-20 11:38:40,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:38:40,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 670 transitions. [2022-11-20 11:38:40,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 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) [2022-11-20 11:38:40,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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) [2022-11-20 11:38:40,173 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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) [2022-11-20 11:38:40,173 INFO L175 Difference]: Start difference. First operand has 208 places, 213 transitions, 491 flow. Second operand 3 states and 670 transitions. [2022-11-20 11:38:40,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 242 transitions, 743 flow [2022-11-20 11:38:40,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 242 transitions, 734 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:38:40,178 INFO L231 Difference]: Finished difference. Result has 209 places, 213 transitions, 494 flow [2022-11-20 11:38:40,178 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=494, PETRI_PLACES=209, PETRI_TRANSITIONS=213} [2022-11-20 11:38:40,179 INFO L288 CegarLoopForPetriNet]: 267 programPoint places, -58 predicate places. [2022-11-20 11:38:40,179 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 213 transitions, 494 flow [2022-11-20 11:38:40,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 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) [2022-11-20 11:38:40,180 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:38:40,180 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:38:40,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 11:38:40,180 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-20 11:38:40,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:40,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1268404796, now seen corresponding path program 1 times [2022-11-20 11:38:40,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:40,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516349971] [2022-11-20 11:38:40,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:40,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:40,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:40,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:38:40,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:38:40,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516349971] [2022-11-20 11:38:40,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516349971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:38:40,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:38:40,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:38:40,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203883822] [2022-11-20 11:38:40,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:38:40,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:38:40,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:38:40,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:38:40,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:38:40,220 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 284 [2022-11-20 11:38:40,220 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 213 transitions, 494 flow. Second operand has 3 states, 3 states have (on average 205.33333333333334) internal successors, (616), 3 states have internal predecessors, (616), 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) [2022-11-20 11:38:40,221 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:38:40,221 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 284 [2022-11-20 11:38:40,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:38:41,965 INFO L130 PetriNetUnfolder]: 6053/10489 cut-off events. [2022-11-20 11:38:41,965 INFO L131 PetriNetUnfolder]: For 3395/4032 co-relation queries the response was YES. [2022-11-20 11:38:41,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26013 conditions, 10489 events. 6053/10489 cut-off events. For 3395/4032 co-relation queries the response was YES. Maximal size of possible extension queue 505. Compared 73894 event pairs, 3785 based on Foata normal form. 1/10125 useless extension candidates. Maximal degree in co-relation 18234. Up to 7524 conditions per place. [2022-11-20 11:38:42,054 INFO L137 encePairwiseOnDemand]: 277/284 looper letters, 64 selfloop transitions, 4 changer transitions 3/238 dead transitions. [2022-11-20 11:38:42,055 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 238 transitions, 726 flow [2022-11-20 11:38:42,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:38:42,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:38:42,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 663 transitions. [2022-11-20 11:38:42,057 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.778169014084507 [2022-11-20 11:38:42,057 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 663 transitions. [2022-11-20 11:38:42,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 663 transitions. [2022-11-20 11:38:42,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:38:42,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 663 transitions. [2022-11-20 11:38:42,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 221.0) internal successors, (663), 3 states have internal predecessors, (663), 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) [2022-11-20 11:38:42,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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) [2022-11-20 11:38:42,062 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 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) [2022-11-20 11:38:42,063 INFO L175 Difference]: Start difference. First operand has 209 places, 213 transitions, 494 flow. Second operand 3 states and 663 transitions. [2022-11-20 11:38:42,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 238 transitions, 726 flow [2022-11-20 11:38:42,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 238 transitions, 723 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:38:42,069 INFO L231 Difference]: Finished difference. Result has 209 places, 211 transitions, 505 flow [2022-11-20 11:38:42,069 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=488, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=505, PETRI_PLACES=209, PETRI_TRANSITIONS=211} [2022-11-20 11:38:42,070 INFO L288 CegarLoopForPetriNet]: 267 programPoint places, -58 predicate places. [2022-11-20 11:38:42,070 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 211 transitions, 505 flow [2022-11-20 11:38:42,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.33333333333334) internal successors, (616), 3 states have internal predecessors, (616), 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) [2022-11-20 11:38:42,071 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:38:42,071 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:38:42,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 11:38:42,071 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-20 11:38:42,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:42,072 INFO L85 PathProgramCache]: Analyzing trace with hash 228408117, now seen corresponding path program 1 times [2022-11-20 11:38:42,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:42,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982744839] [2022-11-20 11:38:42,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:42,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:42,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:38:42,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:38:42,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982744839] [2022-11-20 11:38:42,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982744839] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:38:42,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:38:42,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:38:42,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86683939] [2022-11-20 11:38:42,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:38:42,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:38:42,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:38:42,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:38:42,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:38:42,929 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 284 [2022-11-20 11:38:42,931 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 211 transitions, 505 flow. Second operand has 6 states, 6 states have (on average 185.16666666666666) internal successors, (1111), 6 states have internal predecessors, (1111), 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) [2022-11-20 11:38:42,931 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:38:42,931 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 284 [2022-11-20 11:38:42,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:38:51,479 INFO L130 PetriNetUnfolder]: 47225/65914 cut-off events. [2022-11-20 11:38:51,479 INFO L131 PetriNetUnfolder]: For 41300/41300 co-relation queries the response was YES. [2022-11-20 11:38:51,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179518 conditions, 65914 events. 47225/65914 cut-off events. For 41300/41300 co-relation queries the response was YES. Maximal size of possible extension queue 1874. Compared 403175 event pairs, 7597 based on Foata normal form. 0/65314 useless extension candidates. Maximal degree in co-relation 148128. Up to 23527 conditions per place. [2022-11-20 11:38:51,874 INFO L137 encePairwiseOnDemand]: 279/284 looper letters, 194 selfloop transitions, 4 changer transitions 1/342 dead transitions. [2022-11-20 11:38:51,874 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 342 transitions, 1433 flow [2022-11-20 11:38:51,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:38:51,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:38:51,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1218 transitions. [2022-11-20 11:38:51,879 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7147887323943662 [2022-11-20 11:38:51,879 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1218 transitions. [2022-11-20 11:38:51,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1218 transitions. [2022-11-20 11:38:51,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:38:51,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1218 transitions. [2022-11-20 11:38:51,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 203.0) internal successors, (1218), 6 states have internal predecessors, (1218), 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) [2022-11-20 11:38:51,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 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) [2022-11-20 11:38:51,888 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 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) [2022-11-20 11:38:51,888 INFO L175 Difference]: Start difference. First operand has 209 places, 211 transitions, 505 flow. Second operand 6 states and 1218 transitions. [2022-11-20 11:38:51,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 342 transitions, 1433 flow [2022-11-20 11:38:51,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 342 transitions, 1417 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:38:51,900 INFO L231 Difference]: Finished difference. Result has 209 places, 209 transitions, 505 flow [2022-11-20 11:38:51,901 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=210, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=505, PETRI_PLACES=209, PETRI_TRANSITIONS=209} [2022-11-20 11:38:51,901 INFO L288 CegarLoopForPetriNet]: 267 programPoint places, -58 predicate places. [2022-11-20 11:38:51,902 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 209 transitions, 505 flow [2022-11-20 11:38:51,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 185.16666666666666) internal successors, (1111), 6 states have internal predecessors, (1111), 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) [2022-11-20 11:38:51,903 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:38:51,903 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:38:51,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 11:38:51,903 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-20 11:38:51,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:38:51,904 INFO L85 PathProgramCache]: Analyzing trace with hash -829726871, now seen corresponding path program 1 times [2022-11-20 11:38:51,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:38:51,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042462950] [2022-11-20 11:38:51,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:38:51,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:38:51,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:38:52,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:38:52,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:38:52,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042462950] [2022-11-20 11:38:52,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042462950] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:38:52,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:38:52,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:38:52,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254861877] [2022-11-20 11:38:52,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:38:52,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:38:52,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:38:52,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:38:52,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:38:52,546 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 284 [2022-11-20 11:38:52,548 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 209 transitions, 505 flow. Second operand has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 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) [2022-11-20 11:38:52,548 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:38:52,548 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 284 [2022-11-20 11:38:52,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:39:01,230 INFO L130 PetriNetUnfolder]: 41131/58449 cut-off events. [2022-11-20 11:39:01,231 INFO L131 PetriNetUnfolder]: For 38978/38978 co-relation queries the response was YES. [2022-11-20 11:39:01,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163436 conditions, 58449 events. 41131/58449 cut-off events. For 38978/38978 co-relation queries the response was YES. Maximal size of possible extension queue 1869. Compared 368332 event pairs, 25981 based on Foata normal form. 0/57772 useless extension candidates. Maximal degree in co-relation 55372. Up to 49614 conditions per place. [2022-11-20 11:39:01,569 INFO L137 encePairwiseOnDemand]: 279/284 looper letters, 145 selfloop transitions, 4 changer transitions 0/292 dead transitions. [2022-11-20 11:39:01,570 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 292 transitions, 1137 flow [2022-11-20 11:39:01,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:39:01,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:39:01,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1196 transitions. [2022-11-20 11:39:01,575 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7018779342723005 [2022-11-20 11:39:01,575 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1196 transitions. [2022-11-20 11:39:01,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1196 transitions. [2022-11-20 11:39:01,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:39:01,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1196 transitions. [2022-11-20 11:39:01,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 199.33333333333334) internal successors, (1196), 6 states have internal predecessors, (1196), 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) [2022-11-20 11:39:01,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 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) [2022-11-20 11:39:01,585 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 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) [2022-11-20 11:39:01,585 INFO L175 Difference]: Start difference. First operand has 209 places, 209 transitions, 505 flow. Second operand 6 states and 1196 transitions. [2022-11-20 11:39:01,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 292 transitions, 1137 flow [2022-11-20 11:39:01,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 292 transitions, 1130 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:39:01,627 INFO L231 Difference]: Finished difference. Result has 208 places, 208 transitions, 504 flow [2022-11-20 11:39:01,627 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=496, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=504, PETRI_PLACES=208, PETRI_TRANSITIONS=208} [2022-11-20 11:39:01,628 INFO L288 CegarLoopForPetriNet]: 267 programPoint places, -59 predicate places. [2022-11-20 11:39:01,628 INFO L495 AbstractCegarLoop]: Abstraction has has 208 places, 208 transitions, 504 flow [2022-11-20 11:39:01,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 187.0) internal successors, (1122), 6 states have internal predecessors, (1122), 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) [2022-11-20 11:39:01,629 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:39:01,629 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:39:01,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 11:39:01,630 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2022-11-20 11:39:01,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:39:01,630 INFO L85 PathProgramCache]: Analyzing trace with hash -869766904, now seen corresponding path program 1 times [2022-11-20 11:39:01,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:39:01,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830777937] [2022-11-20 11:39:01,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:39:01,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:39:01,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:39:02,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:39:02,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:39:02,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830777937] [2022-11-20 11:39:02,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830777937] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:39:02,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:39:02,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:39:02,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91031532] [2022-11-20 11:39:02,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:39:02,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:39:02,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:39:02,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:39:02,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:39:02,418 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 284 [2022-11-20 11:39:02,420 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 208 transitions, 504 flow. Second operand has 6 states, 6 states have (on average 188.66666666666666) internal successors, (1132), 6 states have internal predecessors, (1132), 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) [2022-11-20 11:39:02,420 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:39:02,420 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 284 [2022-11-20 11:39:02,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand