./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b 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_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/bin/uautomizer-TMbwUNV5ro --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 c7fdb1595c27c144c3bf111946260cb3946663200a2d53f7fba5455031291c4f --- 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-8393723 [2022-11-18 20:58:39,661 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:58:39,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:58:39,700 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:58:39,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:58:39,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:58:39,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:58:39,711 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:58:39,717 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:58:39,719 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:58:39,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:58:39,722 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:58:39,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:58:39,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:58:39,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:58:39,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:58:39,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:58:39,740 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:58:39,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:58:39,743 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:58:39,747 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:58:39,749 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:58:39,751 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:58:39,753 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:58:39,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:58:39,760 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:58:39,761 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:58:39,763 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:58:39,763 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:58:39,765 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:58:39,766 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:58:39,767 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:58:39,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:58:39,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:58:39,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:58:39,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:58:39,772 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:58:39,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:58:39,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:58:39,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:58:39,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:58:39,776 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:58:39,819 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:58:39,819 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:58:39,820 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:58:39,821 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:58:39,822 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:58:39,822 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:58:39,823 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:58:39,823 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:58:39,823 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:58:39,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:58:39,825 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:58:39,825 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:58:39,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:58:39,826 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:58:39,826 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:58:39,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:58:39,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:58:39,826 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:58:39,827 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:58:39,828 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:58:39,828 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:58:39,833 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:58:39,833 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:58:39,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:58:39,835 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:58:39,835 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:58:39,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:58:39,836 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:58:39,836 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:58:39,836 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:58:39,836 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:58:39,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:58:39,837 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:58:39,837 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:58:39,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:58:39,838 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_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7fdb1595c27c144c3bf111946260cb3946663200a2d53f7fba5455031291c4f [2022-11-18 20:58:40,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:58:40,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:58:40,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:58:40,227 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:58:40,228 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:58:40,230 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c [2022-11-18 20:58:40,343 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/bin/uautomizer-TMbwUNV5ro/data/91589adbb/32f8929793f647598fa9077b8ec85f27/FLAG5e591397f [2022-11-18 20:58:40,883 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:58:40,884 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c [2022-11-18 20:58:40,893 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/bin/uautomizer-TMbwUNV5ro/data/91589adbb/32f8929793f647598fa9077b8ec85f27/FLAG5e591397f [2022-11-18 20:58:41,243 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/bin/uautomizer-TMbwUNV5ro/data/91589adbb/32f8929793f647598fa9077b8ec85f27 [2022-11-18 20:58:41,246 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:58:41,249 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:58:41,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:58:41,251 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:58:41,255 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:58:41,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:58:41" (1/1) ... [2022-11-18 20:58:41,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74034276 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:41, skipping insertion in model container [2022-11-18 20:58:41,258 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:58:41" (1/1) ... [2022-11-18 20:58:41,265 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:58:41,285 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:58:41,528 WARN L234 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_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c[2695,2708] [2022-11-18 20:58:41,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:58:41,545 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:58:41,575 WARN L234 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_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c[2695,2708] [2022-11-18 20:58:41,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:58:41,601 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:58:41,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:41 WrapperNode [2022-11-18 20:58:41,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:58:41,602 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:58:41,602 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:58:41,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:58:41,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:41" (1/1) ... [2022-11-18 20:58:41,629 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:41" (1/1) ... [2022-11-18 20:58:41,685 INFO L138 Inliner]: procedures = 25, calls = 37, calls flagged for inlining = 15, calls inlined = 19, statements flattened = 334 [2022-11-18 20:58:41,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:58:41,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:58:41,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:58:41,689 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:58:41,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:41" (1/1) ... [2022-11-18 20:58:41,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:41" (1/1) ... [2022-11-18 20:58:41,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:41" (1/1) ... [2022-11-18 20:58:41,728 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:41" (1/1) ... [2022-11-18 20:58:41,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:41" (1/1) ... [2022-11-18 20:58:41,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:41" (1/1) ... [2022-11-18 20:58:41,766 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:41" (1/1) ... [2022-11-18 20:58:41,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:41" (1/1) ... [2022-11-18 20:58:41,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:58:41,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:58:41,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:58:41,779 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:58:41,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:41" (1/1) ... [2022-11-18 20:58:41,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:58:41,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:58:41,823 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:58:41,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:58:41,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:58:41,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:58:41,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:58:41,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:58:41,868 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 20:58:41,869 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 20:58:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 20:58:41,870 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 20:58:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:58:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:58:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:58:41,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:58:41,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:58:41,872 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:58:42,046 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:58:42,069 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:58:42,804 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:58:42,818 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:58:42,819 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-18 20:58:42,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:58:42 BoogieIcfgContainer [2022-11-18 20:58:42,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:58:42,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:58:42,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:58:42,828 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:58:42,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:58:41" (1/3) ... [2022-11-18 20:58:42,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e69a17e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:58:42, skipping insertion in model container [2022-11-18 20:58:42,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:58:41" (2/3) ... [2022-11-18 20:58:42,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e69a17e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:58:42, skipping insertion in model container [2022-11-18 20:58:42,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:58:42" (3/3) ... [2022-11-18 20:58:42,832 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-symm.wvr.c [2022-11-18 20:58:42,840 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:58:42,851 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:58:42,851 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2022-11-18 20:58:42,852 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:58:43,029 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 20:58:43,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 423 places, 442 transitions, 900 flow [2022-11-18 20:58:43,331 INFO L130 PetriNetUnfolder]: 26/440 cut-off events. [2022-11-18 20:58:43,332 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 20:58:43,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 449 conditions, 440 events. 26/440 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 698 event pairs, 0 based on Foata normal form. 0/378 useless extension candidates. Maximal degree in co-relation 252. Up to 2 conditions per place. [2022-11-18 20:58:43,345 INFO L82 GeneralOperation]: Start removeDead. Operand has 423 places, 442 transitions, 900 flow [2022-11-18 20:58:43,363 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 402 places, 419 transitions, 850 flow [2022-11-18 20:58:43,374 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:58:43,381 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;@309a8ee7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:58:43,382 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2022-11-18 20:58:43,391 INFO L130 PetriNetUnfolder]: 3/60 cut-off events. [2022-11-18 20:58:43,392 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:58:43,392 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:43,392 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] [2022-11-18 20:58:43,393 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-18 20:58:43,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:43,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1473926912, now seen corresponding path program 1 times [2022-11-18 20:58:43,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:43,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803328323] [2022-11-18 20:58:43,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:43,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:43,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:43,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:43,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:43,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803328323] [2022-11-18 20:58:43,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803328323] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:43,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:58:43,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:58:43,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26994486] [2022-11-18 20:58:43,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:43,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:58:43,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:43,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:58:43,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:58:43,751 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 442 [2022-11-18 20:58:43,757 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 419 transitions, 850 flow. Second operand has 2 states, 2 states have (on average 420.5) internal successors, (841), 2 states have internal predecessors, (841), 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) [2022-11-18 20:58:43,757 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:43,757 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 442 [2022-11-18 20:58:43,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:43,928 INFO L130 PetriNetUnfolder]: 8/403 cut-off events. [2022-11-18 20:58:43,928 INFO L131 PetriNetUnfolder]: For 9/10 co-relation queries the response was YES. [2022-11-18 20:58:43,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 417 conditions, 403 events. 8/403 cut-off events. For 9/10 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 673 event pairs, 0 based on Foata normal form. 18/366 useless extension candidates. Maximal degree in co-relation 243. Up to 5 conditions per place. [2022-11-18 20:58:43,937 INFO L137 encePairwiseOnDemand]: 426/442 looper letters, 4 selfloop transitions, 0 changer transitions 6/403 dead transitions. [2022-11-18 20:58:43,937 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 403 transitions, 826 flow [2022-11-18 20:58:43,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:58:43,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-18 20:58:43,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 860 transitions. [2022-11-18 20:58:43,965 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9728506787330317 [2022-11-18 20:58:43,966 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 860 transitions. [2022-11-18 20:58:43,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 860 transitions. [2022-11-18 20:58:43,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:43,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 860 transitions. [2022-11-18 20:58:43,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 430.0) internal successors, (860), 2 states have internal predecessors, (860), 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) [2022-11-18 20:58:43,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 442.0) internal successors, (1326), 3 states have internal predecessors, (1326), 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) [2022-11-18 20:58:43,993 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 442.0) internal successors, (1326), 3 states have internal predecessors, (1326), 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) [2022-11-18 20:58:43,996 INFO L175 Difference]: Start difference. First operand has 402 places, 419 transitions, 850 flow. Second operand 2 states and 860 transitions. [2022-11-18 20:58:43,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 403 transitions, 826 flow [2022-11-18 20:58:44,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 403 transitions, 818 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 20:58:44,019 INFO L231 Difference]: Finished difference. Result has 399 places, 397 transitions, 798 flow [2022-11-18 20:58:44,021 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=810, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=798, PETRI_PLACES=399, PETRI_TRANSITIONS=397} [2022-11-18 20:58:44,028 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, -3 predicate places. [2022-11-18 20:58:44,029 INFO L495 AbstractCegarLoop]: Abstraction has has 399 places, 397 transitions, 798 flow [2022-11-18 20:58:44,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 420.5) internal successors, (841), 2 states have internal predecessors, (841), 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) [2022-11-18 20:58:44,030 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:44,031 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] [2022-11-18 20:58:44,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:58:44,032 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-18 20:58:44,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:44,034 INFO L85 PathProgramCache]: Analyzing trace with hash 268883423, now seen corresponding path program 1 times [2022-11-18 20:58:44,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:44,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394166892] [2022-11-18 20:58:44,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:44,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:44,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:44,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:44,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:44,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394166892] [2022-11-18 20:58:44,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394166892] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:44,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:58:44,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:58:44,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392560085] [2022-11-18 20:58:44,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:44,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:58:44,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:44,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:58:44,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:58:44,202 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 442 [2022-11-18 20:58:44,205 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 397 transitions, 798 flow. Second operand has 3 states, 3 states have (on average 409.3333333333333) internal successors, (1228), 3 states have internal predecessors, (1228), 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) [2022-11-18 20:58:44,205 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:44,205 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 442 [2022-11-18 20:58:44,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:44,497 INFO L130 PetriNetUnfolder]: 42/926 cut-off events. [2022-11-18 20:58:44,497 INFO L131 PetriNetUnfolder]: For 10/11 co-relation queries the response was YES. [2022-11-18 20:58:44,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 991 conditions, 926 events. 42/926 cut-off events. For 10/11 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3951 event pairs, 15 based on Foata normal form. 0/791 useless extension candidates. Maximal degree in co-relation 988. Up to 56 conditions per place. [2022-11-18 20:58:44,506 INFO L137 encePairwiseOnDemand]: 439/442 looper letters, 13 selfloop transitions, 2 changer transitions 0/396 dead transitions. [2022-11-18 20:58:44,507 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 396 transitions, 826 flow [2022-11-18 20:58:44,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:58:44,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:58:44,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1240 transitions. [2022-11-18 20:58:44,512 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9351432880844646 [2022-11-18 20:58:44,512 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1240 transitions. [2022-11-18 20:58:44,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1240 transitions. [2022-11-18 20:58:44,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:44,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1240 transitions. [2022-11-18 20:58:44,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 413.3333333333333) internal successors, (1240), 3 states have internal predecessors, (1240), 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) [2022-11-18 20:58:44,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 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) [2022-11-18 20:58:44,521 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 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) [2022-11-18 20:58:44,522 INFO L175 Difference]: Start difference. First operand has 399 places, 397 transitions, 798 flow. Second operand 3 states and 1240 transitions. [2022-11-18 20:58:44,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 396 transitions, 826 flow [2022-11-18 20:58:44,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 396 transitions, 826 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:58:44,530 INFO L231 Difference]: Finished difference. Result has 394 places, 396 transitions, 800 flow [2022-11-18 20:58:44,531 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=396, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=394, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=800, PETRI_PLACES=394, PETRI_TRANSITIONS=396} [2022-11-18 20:58:44,532 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, -8 predicate places. [2022-11-18 20:58:44,532 INFO L495 AbstractCegarLoop]: Abstraction has has 394 places, 396 transitions, 800 flow [2022-11-18 20:58:44,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 409.3333333333333) internal successors, (1228), 3 states have internal predecessors, (1228), 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) [2022-11-18 20:58:44,533 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:44,533 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] [2022-11-18 20:58:44,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:58:44,534 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-18 20:58:44,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:44,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1657315472, now seen corresponding path program 1 times [2022-11-18 20:58:44,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:44,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607836015] [2022-11-18 20:58:44,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:44,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:44,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:45,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:45,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:45,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607836015] [2022-11-18 20:58:45,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607836015] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:45,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:58:45,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:58:45,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118318131] [2022-11-18 20:58:45,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:45,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:58:45,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:45,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:58:45,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:58:45,297 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 350 out of 442 [2022-11-18 20:58:45,300 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 396 transitions, 800 flow. Second operand has 6 states, 6 states have (on average 351.8333333333333) internal successors, (2111), 6 states have internal predecessors, (2111), 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) [2022-11-18 20:58:45,300 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:45,301 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 350 of 442 [2022-11-18 20:58:45,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:48,533 INFO L130 PetriNetUnfolder]: 2470/13497 cut-off events. [2022-11-18 20:58:48,533 INFO L131 PetriNetUnfolder]: For 26/38 co-relation queries the response was YES. [2022-11-18 20:58:48,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17150 conditions, 13497 events. 2470/13497 cut-off events. For 26/38 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 154664 event pairs, 2112 based on Foata normal form. 0/11292 useless extension candidates. Maximal degree in co-relation 17146. Up to 3624 conditions per place. [2022-11-18 20:58:48,651 INFO L137 encePairwiseOnDemand]: 430/442 looper letters, 62 selfloop transitions, 10 changer transitions 0/394 dead transitions. [2022-11-18 20:58:48,651 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 394 transitions, 940 flow [2022-11-18 20:58:48,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:58:48,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:58:48,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2174 transitions. [2022-11-18 20:58:48,658 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8197586726998491 [2022-11-18 20:58:48,658 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2174 transitions. [2022-11-18 20:58:48,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2174 transitions. [2022-11-18 20:58:48,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:48,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2174 transitions. [2022-11-18 20:58:48,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 362.3333333333333) internal successors, (2174), 6 states have internal predecessors, (2174), 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) [2022-11-18 20:58:48,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 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) [2022-11-18 20:58:48,689 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 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) [2022-11-18 20:58:48,689 INFO L175 Difference]: Start difference. First operand has 394 places, 396 transitions, 800 flow. Second operand 6 states and 2174 transitions. [2022-11-18 20:58:48,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 394 transitions, 940 flow [2022-11-18 20:58:48,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 394 transitions, 936 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:58:48,699 INFO L231 Difference]: Finished difference. Result has 395 places, 394 transitions, 812 flow [2022-11-18 20:58:48,700 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=792, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=812, PETRI_PLACES=395, PETRI_TRANSITIONS=394} [2022-11-18 20:58:48,703 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, -7 predicate places. [2022-11-18 20:58:48,703 INFO L495 AbstractCegarLoop]: Abstraction has has 395 places, 394 transitions, 812 flow [2022-11-18 20:58:48,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 351.8333333333333) internal successors, (2111), 6 states have internal predecessors, (2111), 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) [2022-11-18 20:58:48,705 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:48,705 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, 1, 1, 1] [2022-11-18 20:58:48,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:58:48,706 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-18 20:58:48,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:48,707 INFO L85 PathProgramCache]: Analyzing trace with hash -586915133, now seen corresponding path program 1 times [2022-11-18 20:58:48,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:48,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701909746] [2022-11-18 20:58:48,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:48,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:48,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:48,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:48,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:48,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701909746] [2022-11-18 20:58:48,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701909746] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:48,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:58:48,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:58:48,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864886377] [2022-11-18 20:58:48,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:48,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:58:48,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:48,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:58:48,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:58:48,789 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 442 [2022-11-18 20:58:48,791 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 395 places, 394 transitions, 812 flow. Second operand has 3 states, 3 states have (on average 409.3333333333333) internal successors, (1228), 3 states have internal predecessors, (1228), 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) [2022-11-18 20:58:48,791 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:48,791 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 442 [2022-11-18 20:58:48,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:49,018 INFO L130 PetriNetUnfolder]: 40/913 cut-off events. [2022-11-18 20:58:49,018 INFO L131 PetriNetUnfolder]: For 10/11 co-relation queries the response was YES. [2022-11-18 20:58:49,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 987 conditions, 913 events. 40/913 cut-off events. For 10/11 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 4044 event pairs, 15 based on Foata normal form. 0/782 useless extension candidates. Maximal degree in co-relation 983. Up to 54 conditions per place. [2022-11-18 20:58:49,024 INFO L137 encePairwiseOnDemand]: 439/442 looper letters, 13 selfloop transitions, 2 changer transitions 0/393 dead transitions. [2022-11-18 20:58:49,024 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 393 transitions, 840 flow [2022-11-18 20:58:49,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:58:49,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:58:49,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1240 transitions. [2022-11-18 20:58:49,028 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9351432880844646 [2022-11-18 20:58:49,028 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1240 transitions. [2022-11-18 20:58:49,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1240 transitions. [2022-11-18 20:58:49,030 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:49,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1240 transitions. [2022-11-18 20:58:49,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 413.3333333333333) internal successors, (1240), 3 states have internal predecessors, (1240), 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) [2022-11-18 20:58:49,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 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) [2022-11-18 20:58:49,042 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 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) [2022-11-18 20:58:49,042 INFO L175 Difference]: Start difference. First operand has 395 places, 394 transitions, 812 flow. Second operand 3 states and 1240 transitions. [2022-11-18 20:58:49,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 393 transitions, 840 flow [2022-11-18 20:58:49,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 391 places, 393 transitions, 820 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:58:49,050 INFO L231 Difference]: Finished difference. Result has 391 places, 393 transitions, 794 flow [2022-11-18 20:58:49,051 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=391, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=794, PETRI_PLACES=391, PETRI_TRANSITIONS=393} [2022-11-18 20:58:49,052 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, -11 predicate places. [2022-11-18 20:58:49,057 INFO L495 AbstractCegarLoop]: Abstraction has has 391 places, 393 transitions, 794 flow [2022-11-18 20:58:49,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 409.3333333333333) internal successors, (1228), 3 states have internal predecessors, (1228), 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) [2022-11-18 20:58:49,060 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:49,060 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] [2022-11-18 20:58:49,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:58:49,061 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-18 20:58:49,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:49,061 INFO L85 PathProgramCache]: Analyzing trace with hash -46354975, now seen corresponding path program 1 times [2022-11-18 20:58:49,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:49,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246287776] [2022-11-18 20:58:49,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:49,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:49,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:49,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:49,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:49,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246287776] [2022-11-18 20:58:49,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246287776] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:49,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:58:49,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:58:49,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465727185] [2022-11-18 20:58:49,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:49,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:58:49,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:49,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:58:49,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:58:49,136 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 442 [2022-11-18 20:58:49,138 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 391 places, 393 transitions, 794 flow. Second operand has 3 states, 3 states have (on average 409.3333333333333) internal successors, (1228), 3 states have internal predecessors, (1228), 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) [2022-11-18 20:58:49,138 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:49,138 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 442 [2022-11-18 20:58:49,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:49,309 INFO L130 PetriNetUnfolder]: 35/966 cut-off events. [2022-11-18 20:58:49,309 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-18 20:58:49,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1022 conditions, 966 events. 35/966 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4575 event pairs, 15 based on Foata normal form. 0/823 useless extension candidates. Maximal degree in co-relation 1018. Up to 44 conditions per place. [2022-11-18 20:58:49,316 INFO L137 encePairwiseOnDemand]: 439/442 looper letters, 13 selfloop transitions, 2 changer transitions 0/392 dead transitions. [2022-11-18 20:58:49,316 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 392 places, 392 transitions, 822 flow [2022-11-18 20:58:49,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:58:49,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:58:49,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1240 transitions. [2022-11-18 20:58:49,320 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9351432880844646 [2022-11-18 20:58:49,320 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1240 transitions. [2022-11-18 20:58:49,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1240 transitions. [2022-11-18 20:58:49,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:49,321 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1240 transitions. [2022-11-18 20:58:49,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 413.3333333333333) internal successors, (1240), 3 states have internal predecessors, (1240), 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) [2022-11-18 20:58:49,328 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 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) [2022-11-18 20:58:49,329 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 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) [2022-11-18 20:58:49,330 INFO L175 Difference]: Start difference. First operand has 391 places, 393 transitions, 794 flow. Second operand 3 states and 1240 transitions. [2022-11-18 20:58:49,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 392 places, 392 transitions, 822 flow [2022-11-18 20:58:49,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 390 places, 392 transitions, 818 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:58:49,337 INFO L231 Difference]: Finished difference. Result has 390 places, 392 transitions, 792 flow [2022-11-18 20:58:49,338 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=788, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=392, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=390, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=792, PETRI_PLACES=390, PETRI_TRANSITIONS=392} [2022-11-18 20:58:49,341 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, -12 predicate places. [2022-11-18 20:58:49,341 INFO L495 AbstractCegarLoop]: Abstraction has has 390 places, 392 transitions, 792 flow [2022-11-18 20:58:49,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 409.3333333333333) internal successors, (1228), 3 states have internal predecessors, (1228), 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) [2022-11-18 20:58:49,342 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:49,342 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] [2022-11-18 20:58:49,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:58:49,342 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-18 20:58:49,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:49,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1812659710, now seen corresponding path program 1 times [2022-11-18 20:58:49,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:49,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72508550] [2022-11-18 20:58:49,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:49,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:49,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:49,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:49,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:49,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72508550] [2022-11-18 20:58:49,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72508550] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:49,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:58:49,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:58:49,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793277096] [2022-11-18 20:58:49,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:49,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:58:49,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:49,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:58:49,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:58:49,420 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 442 [2022-11-18 20:58:49,422 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 392 transitions, 792 flow. Second operand has 3 states, 3 states have (on average 409.3333333333333) internal successors, (1228), 3 states have internal predecessors, (1228), 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) [2022-11-18 20:58:49,422 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:49,422 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 442 [2022-11-18 20:58:49,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:49,627 INFO L130 PetriNetUnfolder]: 33/894 cut-off events. [2022-11-18 20:58:49,627 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-18 20:58:49,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 950 conditions, 894 events. 33/894 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 4347 event pairs, 15 based on Foata normal form. 0/770 useless extension candidates. Maximal degree in co-relation 946. Up to 44 conditions per place. [2022-11-18 20:58:49,634 INFO L137 encePairwiseOnDemand]: 439/442 looper letters, 13 selfloop transitions, 2 changer transitions 0/391 dead transitions. [2022-11-18 20:58:49,635 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 391 transitions, 820 flow [2022-11-18 20:58:49,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:58:49,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:58:49,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1240 transitions. [2022-11-18 20:58:49,639 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9351432880844646 [2022-11-18 20:58:49,639 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1240 transitions. [2022-11-18 20:58:49,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1240 transitions. [2022-11-18 20:58:49,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:49,641 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1240 transitions. [2022-11-18 20:58:49,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 413.3333333333333) internal successors, (1240), 3 states have internal predecessors, (1240), 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) [2022-11-18 20:58:49,650 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 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) [2022-11-18 20:58:49,651 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 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) [2022-11-18 20:58:49,651 INFO L175 Difference]: Start difference. First operand has 390 places, 392 transitions, 792 flow. Second operand 3 states and 1240 transitions. [2022-11-18 20:58:49,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 391 transitions, 820 flow [2022-11-18 20:58:49,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 389 places, 391 transitions, 816 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:58:49,661 INFO L231 Difference]: Finished difference. Result has 389 places, 391 transitions, 790 flow [2022-11-18 20:58:49,661 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=786, PETRI_DIFFERENCE_MINUEND_PLACES=387, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=391, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=389, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=790, PETRI_PLACES=389, PETRI_TRANSITIONS=391} [2022-11-18 20:58:49,666 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, -13 predicate places. [2022-11-18 20:58:49,666 INFO L495 AbstractCegarLoop]: Abstraction has has 389 places, 391 transitions, 790 flow [2022-11-18 20:58:49,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 409.3333333333333) internal successors, (1228), 3 states have internal predecessors, (1228), 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) [2022-11-18 20:58:49,667 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:49,667 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] [2022-11-18 20:58:49,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:58:49,668 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-18 20:58:49,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:49,668 INFO L85 PathProgramCache]: Analyzing trace with hash -658418308, now seen corresponding path program 1 times [2022-11-18 20:58:49,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:49,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169046075] [2022-11-18 20:58:49,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:49,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:49,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:49,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:49,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:49,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169046075] [2022-11-18 20:58:49,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169046075] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:49,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:58:49,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:58:49,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131113355] [2022-11-18 20:58:49,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:49,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:58:49,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:49,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:58:49,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:58:49,738 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 411 out of 442 [2022-11-18 20:58:49,740 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 391 transitions, 790 flow. Second operand has 3 states, 3 states have (on average 412.6666666666667) internal successors, (1238), 3 states have internal predecessors, (1238), 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) [2022-11-18 20:58:49,741 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:49,741 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 411 of 442 [2022-11-18 20:58:49,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:49,911 INFO L130 PetriNetUnfolder]: 26/863 cut-off events. [2022-11-18 20:58:49,911 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 20:58:49,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 899 conditions, 863 events. 26/863 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3707 event pairs, 4 based on Foata normal form. 0/749 useless extension candidates. Maximal degree in co-relation 895. Up to 22 conditions per place. [2022-11-18 20:58:49,918 INFO L137 encePairwiseOnDemand]: 438/442 looper letters, 11 selfloop transitions, 2 changer transitions 0/392 dead transitions. [2022-11-18 20:58:49,918 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 392 transitions, 819 flow [2022-11-18 20:58:49,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:58:49,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:58:49,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1248 transitions. [2022-11-18 20:58:49,923 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9411764705882353 [2022-11-18 20:58:49,923 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1248 transitions. [2022-11-18 20:58:49,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1248 transitions. [2022-11-18 20:58:49,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:49,925 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1248 transitions. [2022-11-18 20:58:49,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 416.0) internal successors, (1248), 3 states have internal predecessors, (1248), 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) [2022-11-18 20:58:49,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 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) [2022-11-18 20:58:49,935 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 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) [2022-11-18 20:58:49,935 INFO L175 Difference]: Start difference. First operand has 389 places, 391 transitions, 790 flow. Second operand 3 states and 1248 transitions. [2022-11-18 20:58:49,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 392 transitions, 819 flow [2022-11-18 20:58:49,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 392 transitions, 815 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:58:49,944 INFO L231 Difference]: Finished difference. Result has 388 places, 391 transitions, 796 flow [2022-11-18 20:58:49,945 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=782, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=389, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=796, PETRI_PLACES=388, PETRI_TRANSITIONS=391} [2022-11-18 20:58:49,946 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, -14 predicate places. [2022-11-18 20:58:49,946 INFO L495 AbstractCegarLoop]: Abstraction has has 388 places, 391 transitions, 796 flow [2022-11-18 20:58:49,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 412.6666666666667) internal successors, (1238), 3 states have internal predecessors, (1238), 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) [2022-11-18 20:58:49,948 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:49,948 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] [2022-11-18 20:58:49,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:58:49,949 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-18 20:58:49,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:49,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1591121870, now seen corresponding path program 1 times [2022-11-18 20:58:49,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:49,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077585891] [2022-11-18 20:58:49,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:49,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:50,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:50,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:50,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077585891] [2022-11-18 20:58:50,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077585891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:50,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:58:50,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:58:50,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524306496] [2022-11-18 20:58:50,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:50,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:58:50,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:50,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:58:50,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:58:50,028 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 411 out of 442 [2022-11-18 20:58:50,031 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 388 places, 391 transitions, 796 flow. Second operand has 3 states, 3 states have (on average 413.0) internal successors, (1239), 3 states have internal predecessors, (1239), 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) [2022-11-18 20:58:50,031 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:50,031 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 411 of 442 [2022-11-18 20:58:50,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:50,212 INFO L130 PetriNetUnfolder]: 27/861 cut-off events. [2022-11-18 20:58:50,212 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-18 20:58:50,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 902 conditions, 861 events. 27/861 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 4086 event pairs, 3 based on Foata normal form. 0/753 useless extension candidates. Maximal degree in co-relation 898. Up to 22 conditions per place. [2022-11-18 20:58:50,220 INFO L137 encePairwiseOnDemand]: 438/442 looper letters, 11 selfloop transitions, 2 changer transitions 0/392 dead transitions. [2022-11-18 20:58:50,220 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 392 transitions, 825 flow [2022-11-18 20:58:50,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:58:50,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:58:50,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1248 transitions. [2022-11-18 20:58:50,225 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9411764705882353 [2022-11-18 20:58:50,225 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1248 transitions. [2022-11-18 20:58:50,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1248 transitions. [2022-11-18 20:58:50,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:50,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1248 transitions. [2022-11-18 20:58:50,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 416.0) internal successors, (1248), 3 states have internal predecessors, (1248), 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) [2022-11-18 20:58:50,239 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 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) [2022-11-18 20:58:50,240 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 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) [2022-11-18 20:58:50,241 INFO L175 Difference]: Start difference. First operand has 388 places, 391 transitions, 796 flow. Second operand 3 states and 1248 transitions. [2022-11-18 20:58:50,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 392 transitions, 825 flow [2022-11-18 20:58:50,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 388 places, 392 transitions, 825 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:58:50,252 INFO L231 Difference]: Finished difference. Result has 389 places, 391 transitions, 806 flow [2022-11-18 20:58:50,253 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=792, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=389, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=387, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=806, PETRI_PLACES=389, PETRI_TRANSITIONS=391} [2022-11-18 20:58:50,256 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, -13 predicate places. [2022-11-18 20:58:50,256 INFO L495 AbstractCegarLoop]: Abstraction has has 389 places, 391 transitions, 806 flow [2022-11-18 20:58:50,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 413.0) internal successors, (1239), 3 states have internal predecessors, (1239), 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) [2022-11-18 20:58:50,257 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:50,257 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] [2022-11-18 20:58:50,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:58:50,258 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-18 20:58:50,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:50,259 INFO L85 PathProgramCache]: Analyzing trace with hash -495837248, now seen corresponding path program 1 times [2022-11-18 20:58:50,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:50,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770698946] [2022-11-18 20:58:50,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:50,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:50,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:50,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:58:50,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:50,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770698946] [2022-11-18 20:58:50,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770698946] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:50,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:58:50,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:58:50,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066112320] [2022-11-18 20:58:50,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:50,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:58:50,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:50,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:58:50,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:58:50,422 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 384 out of 442 [2022-11-18 20:58:50,435 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 389 places, 391 transitions, 806 flow. Second operand has 5 states, 5 states have (on average 387.6) internal successors, (1938), 5 states have internal predecessors, (1938), 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) [2022-11-18 20:58:50,443 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:50,443 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 384 of 442 [2022-11-18 20:58:50,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:50,685 INFO L130 PetriNetUnfolder]: 14/600 cut-off events. [2022-11-18 20:58:50,685 INFO L131 PetriNetUnfolder]: For 3/4 co-relation queries the response was YES. [2022-11-18 20:58:50,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 676 conditions, 600 events. 14/600 cut-off events. For 3/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1840 event pairs, 0 based on Foata normal form. 0/534 useless extension candidates. Maximal degree in co-relation 671. Up to 36 conditions per place. [2022-11-18 20:58:50,690 INFO L137 encePairwiseOnDemand]: 432/442 looper letters, 48 selfloop transitions, 8 changer transitions 0/409 dead transitions. [2022-11-18 20:58:50,690 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 393 places, 409 transitions, 954 flow [2022-11-18 20:58:50,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:58:50,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:58:50,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1978 transitions. [2022-11-18 20:58:50,695 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8950226244343892 [2022-11-18 20:58:50,695 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1978 transitions. [2022-11-18 20:58:50,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1978 transitions. [2022-11-18 20:58:50,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:50,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1978 transitions. [2022-11-18 20:58:50,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 395.6) internal successors, (1978), 5 states have internal predecessors, (1978), 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) [2022-11-18 20:58:50,707 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 442.0) internal successors, (2652), 6 states have internal predecessors, (2652), 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) [2022-11-18 20:58:50,708 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 442.0) internal successors, (2652), 6 states have internal predecessors, (2652), 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) [2022-11-18 20:58:50,709 INFO L175 Difference]: Start difference. First operand has 389 places, 391 transitions, 806 flow. Second operand 5 states and 1978 transitions. [2022-11-18 20:58:50,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 393 places, 409 transitions, 954 flow [2022-11-18 20:58:50,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 409 transitions, 954 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:58:50,717 INFO L231 Difference]: Finished difference. Result has 394 places, 393 transitions, 838 flow [2022-11-18 20:58:50,717 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=806, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=391, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=383, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=838, PETRI_PLACES=394, PETRI_TRANSITIONS=393} [2022-11-18 20:58:50,718 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, -8 predicate places. [2022-11-18 20:58:50,719 INFO L495 AbstractCegarLoop]: Abstraction has has 394 places, 393 transitions, 838 flow [2022-11-18 20:58:50,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 387.6) internal successors, (1938), 5 states have internal predecessors, (1938), 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) [2022-11-18 20:58:50,720 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:50,720 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] [2022-11-18 20:58:50,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:58:50,720 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-18 20:58:50,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:50,722 INFO L85 PathProgramCache]: Analyzing trace with hash 426257534, now seen corresponding path program 1 times [2022-11-18 20:58:50,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:50,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885292693] [2022-11-18 20:58:50,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:50,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:50,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:50,947 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:58:50,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:50,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885292693] [2022-11-18 20:58:50,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885292693] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:58:50,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779170607] [2022-11-18 20:58:50,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:50,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:58:50,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:58:50,955 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:58:50,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:58:51,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:51,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:58:51,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:58:51,374 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:58:51,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:58:51,512 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:58:51,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779170607] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:58:51,513 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:58:51,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-11-18 20:58:51,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838260977] [2022-11-18 20:58:51,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:58:51,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-18 20:58:51,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:51,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-18 20:58:51,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-11-18 20:58:51,528 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 382 out of 442 [2022-11-18 20:58:51,534 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 393 transitions, 838 flow. Second operand has 15 states, 15 states have (on average 386.53333333333336) internal successors, (5798), 15 states have internal predecessors, (5798), 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) [2022-11-18 20:58:51,534 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:51,534 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 382 of 442 [2022-11-18 20:58:51,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:51,996 INFO L130 PetriNetUnfolder]: 14/632 cut-off events. [2022-11-18 20:58:51,996 INFO L131 PetriNetUnfolder]: For 11/12 co-relation queries the response was YES. [2022-11-18 20:58:51,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 752 conditions, 632 events. 14/632 cut-off events. For 11/12 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1792 event pairs, 0 based on Foata normal form. 4/572 useless extension candidates. Maximal degree in co-relation 745. Up to 20 conditions per place. [2022-11-18 20:58:52,002 INFO L137 encePairwiseOnDemand]: 426/442 looper letters, 60 selfloop transitions, 22 changer transitions 0/433 dead transitions. [2022-11-18 20:58:52,002 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 433 transitions, 1086 flow [2022-11-18 20:58:52,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:58:52,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-18 20:58:52,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4288 transitions. [2022-11-18 20:58:52,014 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8819415878239407 [2022-11-18 20:58:52,014 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4288 transitions. [2022-11-18 20:58:52,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4288 transitions. [2022-11-18 20:58:52,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:52,018 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4288 transitions. [2022-11-18 20:58:52,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 389.8181818181818) internal successors, (4288), 11 states have internal predecessors, (4288), 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) [2022-11-18 20:58:52,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 442.0) internal successors, (5304), 12 states have internal predecessors, (5304), 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) [2022-11-18 20:58:52,044 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 442.0) internal successors, (5304), 12 states have internal predecessors, (5304), 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) [2022-11-18 20:58:52,044 INFO L175 Difference]: Start difference. First operand has 394 places, 393 transitions, 838 flow. Second operand 11 states and 4288 transitions. [2022-11-18 20:58:52,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 433 transitions, 1086 flow [2022-11-18 20:58:52,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 433 transitions, 1074 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-18 20:58:52,054 INFO L231 Difference]: Finished difference. Result has 404 places, 405 transitions, 937 flow [2022-11-18 20:58:52,055 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=826, PETRI_DIFFERENCE_MINUEND_PLACES=391, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=937, PETRI_PLACES=404, PETRI_TRANSITIONS=405} [2022-11-18 20:58:52,056 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, 2 predicate places. [2022-11-18 20:58:52,056 INFO L495 AbstractCegarLoop]: Abstraction has has 404 places, 405 transitions, 937 flow [2022-11-18 20:58:52,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 386.53333333333336) internal successors, (5798), 15 states have internal predecessors, (5798), 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) [2022-11-18 20:58:52,060 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:52,061 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:58:52,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-18 20:58:52,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:58:52,267 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-18 20:58:52,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:52,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1853841786, now seen corresponding path program 2 times [2022-11-18 20:58:52,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:52,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953314246] [2022-11-18 20:58:52,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:52,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:52,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:52,851 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-18 20:58:52,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:52,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953314246] [2022-11-18 20:58:52,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953314246] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:58:52,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23437268] [2022-11-18 20:58:52,852 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:58:52,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:58:52,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:58:52,854 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:58:52,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:58:53,023 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 20:58:53,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:58:53,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-18 20:58:53,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:58:53,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-18 20:58:53,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:58:53,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-18 20:58:53,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:58:53,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:58:53,469 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:58:53,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-18 20:58:53,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:58:53,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:58:53,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:58:53,522 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:58:53,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2022-11-18 20:58:53,563 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-18 20:58:53,563 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:58:53,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [23437268] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:53,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:58:53,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 16 [2022-11-18 20:58:53,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462984533] [2022-11-18 20:58:53,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:53,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:58:53,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:53,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:58:53,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:58:53,571 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 442 [2022-11-18 20:58:53,574 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 405 transitions, 937 flow. Second operand has 7 states, 7 states have (on average 369.0) internal successors, (2583), 7 states have internal predecessors, (2583), 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) [2022-11-18 20:58:53,575 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:53,575 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 442 [2022-11-18 20:58:53,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:56,268 INFO L130 PetriNetUnfolder]: 2581/10631 cut-off events. [2022-11-18 20:58:56,268 INFO L131 PetriNetUnfolder]: For 28/129 co-relation queries the response was YES. [2022-11-18 20:58:56,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14690 conditions, 10631 events. 2581/10631 cut-off events. For 28/129 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 106728 event pairs, 780 based on Foata normal form. 34/9175 useless extension candidates. Maximal degree in co-relation 14680. Up to 1319 conditions per place. [2022-11-18 20:58:56,372 INFO L137 encePairwiseOnDemand]: 436/442 looper letters, 144 selfloop transitions, 5 changer transitions 0/500 dead transitions. [2022-11-18 20:58:56,372 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 409 places, 500 transitions, 1425 flow [2022-11-18 20:58:56,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:58:56,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-18 20:58:56,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2712 transitions. [2022-11-18 20:58:56,382 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8765352294764059 [2022-11-18 20:58:56,382 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2712 transitions. [2022-11-18 20:58:56,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2712 transitions. [2022-11-18 20:58:56,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:56,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2712 transitions. [2022-11-18 20:58:56,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 387.42857142857144) internal successors, (2712), 7 states have internal predecessors, (2712), 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) [2022-11-18 20:58:56,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 442.0) internal successors, (3536), 8 states have internal predecessors, (3536), 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) [2022-11-18 20:58:56,401 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 442.0) internal successors, (3536), 8 states have internal predecessors, (3536), 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) [2022-11-18 20:58:56,401 INFO L175 Difference]: Start difference. First operand has 404 places, 405 transitions, 937 flow. Second operand 7 states and 2712 transitions. [2022-11-18 20:58:56,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 409 places, 500 transitions, 1425 flow [2022-11-18 20:58:56,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 406 places, 500 transitions, 1408 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-11-18 20:58:56,416 INFO L231 Difference]: Finished difference. Result has 406 places, 404 transitions, 928 flow [2022-11-18 20:58:56,417 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=918, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=404, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=928, PETRI_PLACES=406, PETRI_TRANSITIONS=404} [2022-11-18 20:58:56,418 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, 4 predicate places. [2022-11-18 20:58:56,418 INFO L495 AbstractCegarLoop]: Abstraction has has 406 places, 404 transitions, 928 flow [2022-11-18 20:58:56,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 369.0) internal successors, (2583), 7 states have internal predecessors, (2583), 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) [2022-11-18 20:58:56,420 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:56,420 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:58:56,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:58:56,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-18 20:58:56,628 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-18 20:58:56,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:56,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1939515275, now seen corresponding path program 1 times [2022-11-18 20:58:56,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:56,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114011315] [2022-11-18 20:58:56,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:56,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:56,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:56,775 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-18 20:58:56,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:56,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114011315] [2022-11-18 20:58:56,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114011315] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:56,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:58:56,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:58:56,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94025953] [2022-11-18 20:58:56,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:56,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:58:56,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:56,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:58:56,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:58:56,780 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 394 out of 442 [2022-11-18 20:58:56,782 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 404 transitions, 928 flow. Second operand has 3 states, 3 states have (on average 395.3333333333333) internal successors, (1186), 3 states have internal predecessors, (1186), 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) [2022-11-18 20:58:56,783 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:56,783 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 394 of 442 [2022-11-18 20:58:56,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:57,013 INFO L130 PetriNetUnfolder]: 33/737 cut-off events. [2022-11-18 20:58:57,014 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-11-18 20:58:57,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 912 conditions, 737 events. 33/737 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2733 event pairs, 14 based on Foata normal form. 0/663 useless extension candidates. Maximal degree in co-relation 902. Up to 71 conditions per place. [2022-11-18 20:58:57,020 INFO L137 encePairwiseOnDemand]: 439/442 looper letters, 28 selfloop transitions, 2 changer transitions 0/404 dead transitions. [2022-11-18 20:58:57,020 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 407 places, 404 transitions, 989 flow [2022-11-18 20:58:57,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:58:57,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:58:57,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1213 transitions. [2022-11-18 20:58:57,025 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9147812971342383 [2022-11-18 20:58:57,025 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1213 transitions. [2022-11-18 20:58:57,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1213 transitions. [2022-11-18 20:58:57,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:57,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1213 transitions. [2022-11-18 20:58:57,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 404.3333333333333) internal successors, (1213), 3 states have internal predecessors, (1213), 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) [2022-11-18 20:58:57,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 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) [2022-11-18 20:58:57,034 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 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) [2022-11-18 20:58:57,034 INFO L175 Difference]: Start difference. First operand has 406 places, 404 transitions, 928 flow. Second operand 3 states and 1213 transitions. [2022-11-18 20:58:57,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 407 places, 404 transitions, 989 flow [2022-11-18 20:58:57,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 402 places, 404 transitions, 980 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:58:57,108 INFO L231 Difference]: Finished difference. Result has 402 places, 403 transitions, 921 flow [2022-11-18 20:58:57,108 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=917, PETRI_DIFFERENCE_MINUEND_PLACES=400, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=921, PETRI_PLACES=402, PETRI_TRANSITIONS=403} [2022-11-18 20:58:57,109 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, 0 predicate places. [2022-11-18 20:58:57,109 INFO L495 AbstractCegarLoop]: Abstraction has has 402 places, 403 transitions, 921 flow [2022-11-18 20:58:57,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 395.3333333333333) internal successors, (1186), 3 states have internal predecessors, (1186), 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) [2022-11-18 20:58:57,109 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:57,110 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:58:57,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:58:57,110 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-18 20:58:57,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:57,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1740936186, now seen corresponding path program 1 times [2022-11-18 20:58:57,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:57,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911332844] [2022-11-18 20:58:57,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:57,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:57,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:57,224 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-18 20:58:57,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:57,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911332844] [2022-11-18 20:58:57,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911332844] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:57,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:58:57,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:58:57,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353850019] [2022-11-18 20:58:57,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:57,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:58:57,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:57,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:58:57,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:58:57,228 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 411 out of 442 [2022-11-18 20:58:57,229 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 402 places, 403 transitions, 921 flow. Second operand has 3 states, 3 states have (on average 412.6666666666667) internal successors, (1238), 3 states have internal predecessors, (1238), 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) [2022-11-18 20:58:57,229 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:57,229 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 411 of 442 [2022-11-18 20:58:57,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:57,490 INFO L130 PetriNetUnfolder]: 43/1183 cut-off events. [2022-11-18 20:58:57,490 INFO L131 PetriNetUnfolder]: For 19/20 co-relation queries the response was YES. [2022-11-18 20:58:57,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1309 conditions, 1183 events. 43/1183 cut-off events. For 19/20 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 5411 event pairs, 2 based on Foata normal form. 0/1038 useless extension candidates. Maximal degree in co-relation 1299. Up to 41 conditions per place. [2022-11-18 20:58:57,499 INFO L137 encePairwiseOnDemand]: 438/442 looper letters, 13 selfloop transitions, 2 changer transitions 0/406 dead transitions. [2022-11-18 20:58:57,500 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 406 transitions, 960 flow [2022-11-18 20:58:57,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:58:57,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:58:57,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1250 transitions. [2022-11-18 20:58:57,504 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.942684766214178 [2022-11-18 20:58:57,504 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1250 transitions. [2022-11-18 20:58:57,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1250 transitions. [2022-11-18 20:58:57,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:57,505 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1250 transitions. [2022-11-18 20:58:57,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 416.6666666666667) internal successors, (1250), 3 states have internal predecessors, (1250), 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) [2022-11-18 20:58:57,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 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) [2022-11-18 20:58:57,511 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 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) [2022-11-18 20:58:57,511 INFO L175 Difference]: Start difference. First operand has 402 places, 403 transitions, 921 flow. Second operand 3 states and 1250 transitions. [2022-11-18 20:58:57,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 406 transitions, 960 flow [2022-11-18 20:58:57,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 406 transitions, 956 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:58:57,522 INFO L231 Difference]: Finished difference. Result has 401 places, 403 transitions, 927 flow [2022-11-18 20:58:57,523 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=913, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=401, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=927, PETRI_PLACES=401, PETRI_TRANSITIONS=403} [2022-11-18 20:58:57,524 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, -1 predicate places. [2022-11-18 20:58:57,525 INFO L495 AbstractCegarLoop]: Abstraction has has 401 places, 403 transitions, 927 flow [2022-11-18 20:58:57,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 412.6666666666667) internal successors, (1238), 3 states have internal predecessors, (1238), 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) [2022-11-18 20:58:57,525 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:57,526 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:58:57,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 20:58:57,526 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-18 20:58:57,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:57,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1865522333, now seen corresponding path program 1 times [2022-11-18 20:58:57,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:57,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562650157] [2022-11-18 20:58:57,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:57,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:57,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:57,638 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-18 20:58:57,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:57,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562650157] [2022-11-18 20:58:57,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562650157] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:57,639 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:58:57,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:58:57,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156735700] [2022-11-18 20:58:57,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:57,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:58:57,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:57,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:58:57,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:58:57,645 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 442 [2022-11-18 20:58:57,646 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 401 places, 403 transitions, 927 flow. Second operand has 3 states, 3 states have (on average 397.6666666666667) internal successors, (1193), 3 states have internal predecessors, (1193), 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) [2022-11-18 20:58:57,647 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:57,647 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 442 [2022-11-18 20:58:57,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:58,012 INFO L130 PetriNetUnfolder]: 49/1197 cut-off events. [2022-11-18 20:58:58,012 INFO L131 PetriNetUnfolder]: For 16/35 co-relation queries the response was YES. [2022-11-18 20:58:58,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1405 conditions, 1197 events. 49/1197 cut-off events. For 16/35 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 5395 event pairs, 12 based on Foata normal form. 2/1074 useless extension candidates. Maximal degree in co-relation 1395. Up to 61 conditions per place. [2022-11-18 20:58:58,021 INFO L137 encePairwiseOnDemand]: 432/442 looper letters, 21 selfloop transitions, 5 changer transitions 0/402 dead transitions. [2022-11-18 20:58:58,021 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 398 places, 402 transitions, 978 flow [2022-11-18 20:58:58,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:58:58,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:58:58,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1219 transitions. [2022-11-18 20:58:58,025 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9193061840120663 [2022-11-18 20:58:58,025 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1219 transitions. [2022-11-18 20:58:58,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1219 transitions. [2022-11-18 20:58:58,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:58,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1219 transitions. [2022-11-18 20:58:58,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 406.3333333333333) internal successors, (1219), 3 states have internal predecessors, (1219), 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) [2022-11-18 20:58:58,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 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) [2022-11-18 20:58:58,032 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 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) [2022-11-18 20:58:58,032 INFO L175 Difference]: Start difference. First operand has 401 places, 403 transitions, 927 flow. Second operand 3 states and 1219 transitions. [2022-11-18 20:58:58,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 398 places, 402 transitions, 978 flow [2022-11-18 20:58:58,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 402 transitions, 978 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:58:58,041 INFO L231 Difference]: Finished difference. Result has 400 places, 401 transitions, 949 flow [2022-11-18 20:58:58,042 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=917, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=398, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=949, PETRI_PLACES=400, PETRI_TRANSITIONS=401} [2022-11-18 20:58:58,043 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, -2 predicate places. [2022-11-18 20:58:58,043 INFO L495 AbstractCegarLoop]: Abstraction has has 400 places, 401 transitions, 949 flow [2022-11-18 20:58:58,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 397.6666666666667) internal successors, (1193), 3 states have internal predecessors, (1193), 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) [2022-11-18 20:58:58,044 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:58,044 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:58:58,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 20:58:58,044 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-18 20:58:58,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:58,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1968263690, now seen corresponding path program 1 times [2022-11-18 20:58:58,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:58,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084351622] [2022-11-18 20:58:58,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:58,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:58,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:58,158 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-18 20:58:58,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:58,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084351622] [2022-11-18 20:58:58,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084351622] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:58,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:58:58,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:58:58,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248492338] [2022-11-18 20:58:58,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:58,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:58:58,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:58,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:58:58,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:58:58,163 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 394 out of 442 [2022-11-18 20:58:58,164 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 401 transitions, 949 flow. Second operand has 3 states, 3 states have (on average 395.6666666666667) internal successors, (1187), 3 states have internal predecessors, (1187), 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) [2022-11-18 20:58:58,165 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:58,165 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 394 of 442 [2022-11-18 20:58:58,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:58,465 INFO L130 PetriNetUnfolder]: 74/1182 cut-off events. [2022-11-18 20:58:58,465 INFO L131 PetriNetUnfolder]: For 70/72 co-relation queries the response was YES. [2022-11-18 20:58:58,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1469 conditions, 1182 events. 74/1182 cut-off events. For 70/72 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 5895 event pairs, 23 based on Foata normal form. 0/1039 useless extension candidates. Maximal degree in co-relation 1457. Up to 151 conditions per place. [2022-11-18 20:58:58,476 INFO L137 encePairwiseOnDemand]: 439/442 looper letters, 27 selfloop transitions, 2 changer transitions 0/401 dead transitions. [2022-11-18 20:58:58,476 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 401 transitions, 1008 flow [2022-11-18 20:58:58,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:58:58,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:58:58,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1212 transitions. [2022-11-18 20:58:58,480 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9140271493212669 [2022-11-18 20:58:58,480 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1212 transitions. [2022-11-18 20:58:58,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1212 transitions. [2022-11-18 20:58:58,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:58,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1212 transitions. [2022-11-18 20:58:58,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 404.0) internal successors, (1212), 3 states have internal predecessors, (1212), 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) [2022-11-18 20:58:58,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 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) [2022-11-18 20:58:58,487 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 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) [2022-11-18 20:58:58,487 INFO L175 Difference]: Start difference. First operand has 400 places, 401 transitions, 949 flow. Second operand 3 states and 1212 transitions. [2022-11-18 20:58:58,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 401 transitions, 1008 flow [2022-11-18 20:58:58,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 399 places, 401 transitions, 998 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:58:58,496 INFO L231 Difference]: Finished difference. Result has 399 places, 400 transitions, 941 flow [2022-11-18 20:58:58,497 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=937, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=398, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=941, PETRI_PLACES=399, PETRI_TRANSITIONS=400} [2022-11-18 20:58:58,498 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, -3 predicate places. [2022-11-18 20:58:58,498 INFO L495 AbstractCegarLoop]: Abstraction has has 399 places, 400 transitions, 941 flow [2022-11-18 20:58:58,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 395.6666666666667) internal successors, (1187), 3 states have internal predecessors, (1187), 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) [2022-11-18 20:58:58,499 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:58,499 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:58:58,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 20:58:58,500 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-18 20:58:58,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:58,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1070351734, now seen corresponding path program 1 times [2022-11-18 20:58:58,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:58,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607877534] [2022-11-18 20:58:58,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:58,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:58,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:58,658 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-18 20:58:58,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:58,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607877534] [2022-11-18 20:58:58,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607877534] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:58,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:58:58,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:58:58,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557997536] [2022-11-18 20:58:58,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:58,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:58:58,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:58,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:58:58,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:58:58,663 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 397 out of 442 [2022-11-18 20:58:58,665 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 400 transitions, 941 flow. Second operand has 4 states, 4 states have (on average 398.25) internal successors, (1593), 4 states have internal predecessors, (1593), 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) [2022-11-18 20:58:58,665 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:58,665 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 397 of 442 [2022-11-18 20:58:58,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:59,108 INFO L130 PetriNetUnfolder]: 76/1394 cut-off events. [2022-11-18 20:58:59,110 INFO L131 PetriNetUnfolder]: For 20/72 co-relation queries the response was YES. [2022-11-18 20:58:59,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1760 conditions, 1394 events. 76/1394 cut-off events. For 20/72 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6974 event pairs, 22 based on Foata normal form. 3/1261 useless extension candidates. Maximal degree in co-relation 1748. Up to 94 conditions per place. [2022-11-18 20:58:59,122 INFO L137 encePairwiseOnDemand]: 437/442 looper letters, 50 selfloop transitions, 4 changer transitions 0/426 dead transitions. [2022-11-18 20:58:59,122 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 403 places, 426 transitions, 1106 flow [2022-11-18 20:58:59,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:58:59,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:58:59,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2040 transitions. [2022-11-18 20:58:59,128 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9230769230769231 [2022-11-18 20:58:59,128 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2040 transitions. [2022-11-18 20:58:59,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2040 transitions. [2022-11-18 20:58:59,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:59,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2040 transitions. [2022-11-18 20:58:59,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 408.0) internal successors, (2040), 5 states have internal predecessors, (2040), 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) [2022-11-18 20:58:59,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 442.0) internal successors, (2652), 6 states have internal predecessors, (2652), 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) [2022-11-18 20:58:59,140 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 442.0) internal successors, (2652), 6 states have internal predecessors, (2652), 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) [2022-11-18 20:58:59,141 INFO L175 Difference]: Start difference. First operand has 399 places, 400 transitions, 941 flow. Second operand 5 states and 2040 transitions. [2022-11-18 20:58:59,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 403 places, 426 transitions, 1106 flow [2022-11-18 20:58:59,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 426 transitions, 1102 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:58:59,150 INFO L231 Difference]: Finished difference. Result has 404 places, 402 transitions, 962 flow [2022-11-18 20:58:59,151 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=933, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=399, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=962, PETRI_PLACES=404, PETRI_TRANSITIONS=402} [2022-11-18 20:58:59,151 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, 2 predicate places. [2022-11-18 20:58:59,152 INFO L495 AbstractCegarLoop]: Abstraction has has 404 places, 402 transitions, 962 flow [2022-11-18 20:58:59,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 398.25) internal successors, (1593), 4 states have internal predecessors, (1593), 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) [2022-11-18 20:58:59,152 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:59,153 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:58:59,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 20:58:59,153 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-18 20:58:59,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:59,154 INFO L85 PathProgramCache]: Analyzing trace with hash -475851763, now seen corresponding path program 1 times [2022-11-18 20:58:59,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:59,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003409011] [2022-11-18 20:58:59,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:59,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:58:59,251 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-18 20:58:59,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:58:59,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003409011] [2022-11-18 20:58:59,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003409011] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:58:59,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:58:59,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:58:59,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000761916] [2022-11-18 20:58:59,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:58:59,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:58:59,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:58:59,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:58:59,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:58:59,255 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 394 out of 442 [2022-11-18 20:58:59,257 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 404 places, 402 transitions, 962 flow. Second operand has 3 states, 3 states have (on average 396.6666666666667) internal successors, (1190), 3 states have internal predecessors, (1190), 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) [2022-11-18 20:58:59,257 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:58:59,257 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 394 of 442 [2022-11-18 20:58:59,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:58:59,615 INFO L130 PetriNetUnfolder]: 58/1340 cut-off events. [2022-11-18 20:58:59,615 INFO L131 PetriNetUnfolder]: For 48/91 co-relation queries the response was YES. [2022-11-18 20:58:59,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1684 conditions, 1340 events. 58/1340 cut-off events. For 48/91 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 6475 event pairs, 23 based on Foata normal form. 2/1223 useless extension candidates. Maximal degree in co-relation 1670. Up to 127 conditions per place. [2022-11-18 20:58:59,629 INFO L137 encePairwiseOnDemand]: 439/442 looper letters, 24 selfloop transitions, 2 changer transitions 0/402 dead transitions. [2022-11-18 20:58:59,629 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 402 transitions, 1015 flow [2022-11-18 20:58:59,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:58:59,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:58:59,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1207 transitions. [2022-11-18 20:58:59,633 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9102564102564102 [2022-11-18 20:58:59,633 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1207 transitions. [2022-11-18 20:58:59,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1207 transitions. [2022-11-18 20:58:59,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:58:59,634 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1207 transitions. [2022-11-18 20:58:59,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 402.3333333333333) internal successors, (1207), 3 states have internal predecessors, (1207), 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) [2022-11-18 20:58:59,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 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) [2022-11-18 20:58:59,641 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 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) [2022-11-18 20:58:59,641 INFO L175 Difference]: Start difference. First operand has 404 places, 402 transitions, 962 flow. Second operand 3 states and 1207 transitions. [2022-11-18 20:58:59,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 402 transitions, 1015 flow [2022-11-18 20:58:59,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 405 places, 402 transitions, 1015 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:58:59,651 INFO L231 Difference]: Finished difference. Result has 405 places, 401 transitions, 964 flow [2022-11-18 20:58:59,651 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=960, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=401, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=964, PETRI_PLACES=405, PETRI_TRANSITIONS=401} [2022-11-18 20:58:59,652 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, 3 predicate places. [2022-11-18 20:58:59,652 INFO L495 AbstractCegarLoop]: Abstraction has has 405 places, 401 transitions, 964 flow [2022-11-18 20:58:59,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 396.6666666666667) internal successors, (1190), 3 states have internal predecessors, (1190), 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) [2022-11-18 20:58:59,653 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:58:59,654 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:58:59,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 20:58:59,654 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-18 20:58:59,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:58:59,655 INFO L85 PathProgramCache]: Analyzing trace with hash -370851761, now seen corresponding path program 1 times [2022-11-18 20:58:59,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:58:59,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453126723] [2022-11-18 20:58:59,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:58:59,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:58:59,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:00,124 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-18 20:59:00,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:00,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453126723] [2022-11-18 20:59:00,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453126723] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:59:00,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841295532] [2022-11-18 20:59:00,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:00,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:59:00,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:59:00,127 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:59:00,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:59:00,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:00,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 20:59:00,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:59:00,776 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-18 20:59:00,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:59:00,995 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-18 20:59:00,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841295532] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:59:00,996 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:59:00,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-11-18 20:59:00,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114959062] [2022-11-18 20:59:00,996 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:59:00,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-18 20:59:00,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:00,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-18 20:59:00,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-11-18 20:59:01,009 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 382 out of 442 [2022-11-18 20:59:01,019 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 401 transitions, 964 flow. Second operand has 22 states, 22 states have (on average 386.8636363636364) internal successors, (8511), 22 states have internal predecessors, (8511), 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) [2022-11-18 20:59:01,019 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:59:01,019 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 382 of 442 [2022-11-18 20:59:01,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:59:01,903 INFO L130 PetriNetUnfolder]: 28/1202 cut-off events. [2022-11-18 20:59:01,904 INFO L131 PetriNetUnfolder]: For 57/65 co-relation queries the response was YES. [2022-11-18 20:59:01,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1511 conditions, 1202 events. 28/1202 cut-off events. For 57/65 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4761 event pairs, 1 based on Foata normal form. 4/1100 useless extension candidates. Maximal degree in co-relation 1496. Up to 29 conditions per place. [2022-11-18 20:59:01,917 INFO L137 encePairwiseOnDemand]: 426/442 looper letters, 88 selfloop transitions, 34 changer transitions 0/469 dead transitions. [2022-11-18 20:59:01,917 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 469 transitions, 1400 flow [2022-11-18 20:59:01,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 20:59:01,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-18 20:59:01,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 6620 transitions. [2022-11-18 20:59:01,937 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8810220920947565 [2022-11-18 20:59:01,937 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 6620 transitions. [2022-11-18 20:59:01,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 6620 transitions. [2022-11-18 20:59:01,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:59:01,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 6620 transitions. [2022-11-18 20:59:01,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 389.4117647058824) internal successors, (6620), 17 states have internal predecessors, (6620), 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) [2022-11-18 20:59:01,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 442.0) internal successors, (7956), 18 states have internal predecessors, (7956), 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) [2022-11-18 20:59:01,981 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 442.0) internal successors, (7956), 18 states have internal predecessors, (7956), 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) [2022-11-18 20:59:01,981 INFO L175 Difference]: Start difference. First operand has 405 places, 401 transitions, 964 flow. Second operand 17 states and 6620 transitions. [2022-11-18 20:59:01,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 469 transitions, 1400 flow [2022-11-18 20:59:01,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 469 transitions, 1396 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:59:01,995 INFO L231 Difference]: Finished difference. Result has 422 places, 415 transitions, 1135 flow [2022-11-18 20:59:01,996 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=960, PETRI_DIFFERENCE_MINUEND_PLACES=403, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=401, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=375, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1135, PETRI_PLACES=422, PETRI_TRANSITIONS=415} [2022-11-18 20:59:01,997 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, 20 predicate places. [2022-11-18 20:59:01,997 INFO L495 AbstractCegarLoop]: Abstraction has has 422 places, 415 transitions, 1135 flow [2022-11-18 20:59:02,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 386.8636363636364) internal successors, (8511), 22 states have internal predecessors, (8511), 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) [2022-11-18 20:59:02,001 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:59:02,001 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:02,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:59:02,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df373b70-e572-4ab2-bb6e-7ff4fc6f940f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-18 20:59:02,209 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-18 20:59:02,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:02,211 INFO L85 PathProgramCache]: Analyzing trace with hash 225891659, now seen corresponding path program 2 times [2022-11-18 20:59:02,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:02,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504442297] [2022-11-18 20:59:02,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:02,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:02,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:03,459 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-18 20:59:03,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:03,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504442297] [2022-11-18 20:59:03,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504442297] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:03,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:03,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:59:03,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202786994] [2022-11-18 20:59:03,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:03,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:59:03,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:03,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:59:03,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:59:03,466 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 442 [2022-11-18 20:59:03,469 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 415 transitions, 1135 flow. Second operand has 6 states, 6 states have (on average 365.5) internal successors, (2193), 6 states have internal predecessors, (2193), 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) [2022-11-18 20:59:03,469 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:59:03,469 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 442 [2022-11-18 20:59:03,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:59:09,708 INFO L130 PetriNetUnfolder]: 6486/23527 cut-off events. [2022-11-18 20:59:09,708 INFO L131 PetriNetUnfolder]: For 1022/1037 co-relation queries the response was YES. [2022-11-18 20:59:09,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36273 conditions, 23527 events. 6486/23527 cut-off events. For 1022/1037 co-relation queries the response was YES. Maximal size of possible extension queue 331. Compared 250901 event pairs, 1987 based on Foata normal form. 0/21135 useless extension candidates. Maximal degree in co-relation 36255. Up to 5130 conditions per place. [2022-11-18 20:59:09,957 INFO L137 encePairwiseOnDemand]: 436/442 looper letters, 130 selfloop transitions, 6 changer transitions 0/490 dead transitions. [2022-11-18 20:59:09,958 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 490 transitions, 1565 flow [2022-11-18 20:59:09,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:59:09,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:59:09,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2307 transitions. [2022-11-18 20:59:09,964 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8699095022624435 [2022-11-18 20:59:09,964 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2307 transitions. [2022-11-18 20:59:09,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2307 transitions. [2022-11-18 20:59:09,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:59:09,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2307 transitions. [2022-11-18 20:59:09,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 384.5) internal successors, (2307), 6 states have internal predecessors, (2307), 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) [2022-11-18 20:59:09,977 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 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) [2022-11-18 20:59:09,978 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 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) [2022-11-18 20:59:09,978 INFO L175 Difference]: Start difference. First operand has 422 places, 415 transitions, 1135 flow. Second operand 6 states and 2307 transitions. [2022-11-18 20:59:09,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 490 transitions, 1565 flow [2022-11-18 20:59:09,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 490 transitions, 1520 flow, removed 8 selfloop flow, removed 8 redundant places. [2022-11-18 20:59:09,994 INFO L231 Difference]: Finished difference. Result has 418 places, 414 transitions, 1100 flow [2022-11-18 20:59:09,995 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=1088, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1100, PETRI_PLACES=418, PETRI_TRANSITIONS=414} [2022-11-18 20:59:09,996 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, 16 predicate places. [2022-11-18 20:59:09,996 INFO L495 AbstractCegarLoop]: Abstraction has has 418 places, 414 transitions, 1100 flow [2022-11-18 20:59:09,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 365.5) internal successors, (2193), 6 states have internal predecessors, (2193), 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) [2022-11-18 20:59:09,998 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:59:09,998 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:09,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 20:59:09,998 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-18 20:59:09,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:09,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1735224524, now seen corresponding path program 1 times [2022-11-18 20:59:09,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:10,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360275462] [2022-11-18 20:59:10,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:10,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:10,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:10,158 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-18 20:59:10,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:10,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360275462] [2022-11-18 20:59:10,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360275462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:10,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:10,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:59:10,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838123474] [2022-11-18 20:59:10,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:10,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:59:10,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:10,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:59:10,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:59:10,165 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 411 out of 442 [2022-11-18 20:59:10,167 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 414 transitions, 1100 flow. Second operand has 3 states, 3 states have (on average 413.0) internal successors, (1239), 3 states have internal predecessors, (1239), 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) [2022-11-18 20:59:10,167 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:59:10,167 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 411 of 442 [2022-11-18 20:59:10,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:59:10,802 INFO L130 PetriNetUnfolder]: 62/1784 cut-off events. [2022-11-18 20:59:10,802 INFO L131 PetriNetUnfolder]: For 96/97 co-relation queries the response was YES. [2022-11-18 20:59:10,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2158 conditions, 1784 events. 62/1784 cut-off events. For 96/97 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 9898 event pairs, 7 based on Foata normal form. 0/1639 useless extension candidates. Maximal degree in co-relation 2140. Up to 76 conditions per place. [2022-11-18 20:59:10,813 INFO L137 encePairwiseOnDemand]: 438/442 looper letters, 13 selfloop transitions, 2 changer transitions 0/417 dead transitions. [2022-11-18 20:59:10,813 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 417 transitions, 1139 flow [2022-11-18 20:59:10,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:59:10,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:59:10,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1250 transitions. [2022-11-18 20:59:10,816 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.942684766214178 [2022-11-18 20:59:10,817 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1250 transitions. [2022-11-18 20:59:10,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1250 transitions. [2022-11-18 20:59:10,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:59:10,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1250 transitions. [2022-11-18 20:59:10,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 416.6666666666667) internal successors, (1250), 3 states have internal predecessors, (1250), 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) [2022-11-18 20:59:10,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 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) [2022-11-18 20:59:10,822 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 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) [2022-11-18 20:59:10,823 INFO L175 Difference]: Start difference. First operand has 418 places, 414 transitions, 1100 flow. Second operand 3 states and 1250 transitions. [2022-11-18 20:59:10,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 417 transitions, 1139 flow [2022-11-18 20:59:10,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 417 transitions, 1127 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:59:10,832 INFO L231 Difference]: Finished difference. Result has 414 places, 414 transitions, 1098 flow [2022-11-18 20:59:10,832 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=1084, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1098, PETRI_PLACES=414, PETRI_TRANSITIONS=414} [2022-11-18 20:59:10,833 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, 12 predicate places. [2022-11-18 20:59:10,833 INFO L495 AbstractCegarLoop]: Abstraction has has 414 places, 414 transitions, 1098 flow [2022-11-18 20:59:10,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 413.0) internal successors, (1239), 3 states have internal predecessors, (1239), 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) [2022-11-18 20:59:10,834 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:59:10,834 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:10,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-18 20:59:10,835 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-18 20:59:10,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:10,835 INFO L85 PathProgramCache]: Analyzing trace with hash 2042583958, now seen corresponding path program 1 times [2022-11-18 20:59:10,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:10,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027940687] [2022-11-18 20:59:10,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:10,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:10,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:10,961 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-18 20:59:10,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:10,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027940687] [2022-11-18 20:59:10,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027940687] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:10,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:10,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:59:10,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153889769] [2022-11-18 20:59:10,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:10,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:59:10,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:10,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:59:10,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:59:10,965 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 442 [2022-11-18 20:59:10,966 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 414 transitions, 1098 flow. Second operand has 3 states, 3 states have (on average 398.0) internal successors, (1194), 3 states have internal predecessors, (1194), 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) [2022-11-18 20:59:10,966 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:59:10,966 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 442 [2022-11-18 20:59:10,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:59:11,491 INFO L130 PetriNetUnfolder]: 105/2054 cut-off events. [2022-11-18 20:59:11,491 INFO L131 PetriNetUnfolder]: For 125/128 co-relation queries the response was YES. [2022-11-18 20:59:11,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2525 conditions, 2054 events. 105/2054 cut-off events. For 125/128 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 12596 event pairs, 32 based on Foata normal form. 4/1878 useless extension candidates. Maximal degree in co-relation 2507. Up to 121 conditions per place. [2022-11-18 20:59:11,500 INFO L137 encePairwiseOnDemand]: 430/442 looper letters, 15 selfloop transitions, 4 changer transitions 39/415 dead transitions. [2022-11-18 20:59:11,500 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 411 places, 415 transitions, 1155 flow [2022-11-18 20:59:11,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:59:11,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:59:11,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1220 transitions. [2022-11-18 20:59:11,511 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9200603318250377 [2022-11-18 20:59:11,512 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1220 transitions. [2022-11-18 20:59:11,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1220 transitions. [2022-11-18 20:59:11,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:59:11,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1220 transitions. [2022-11-18 20:59:11,515 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 406.6666666666667) internal successors, (1220), 3 states have internal predecessors, (1220), 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) [2022-11-18 20:59:11,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 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) [2022-11-18 20:59:11,519 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 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) [2022-11-18 20:59:11,520 INFO L175 Difference]: Start difference. First operand has 414 places, 414 transitions, 1098 flow. Second operand 3 states and 1220 transitions. [2022-11-18 20:59:11,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 411 places, 415 transitions, 1155 flow [2022-11-18 20:59:11,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 411 places, 415 transitions, 1155 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:59:11,529 INFO L231 Difference]: Finished difference. Result has 413 places, 375 transitions, 1039 flow [2022-11-18 20:59:11,529 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=1088, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=405, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1039, PETRI_PLACES=413, PETRI_TRANSITIONS=375} [2022-11-18 20:59:11,530 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, 11 predicate places. [2022-11-18 20:59:11,530 INFO L495 AbstractCegarLoop]: Abstraction has has 413 places, 375 transitions, 1039 flow [2022-11-18 20:59:11,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 398.0) internal successors, (1194), 3 states have internal predecessors, (1194), 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) [2022-11-18 20:59:11,531 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:59:11,532 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:11,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-18 20:59:11,532 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-18 20:59:11,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:11,533 INFO L85 PathProgramCache]: Analyzing trace with hash -447218568, now seen corresponding path program 1 times [2022-11-18 20:59:11,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:11,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863160517] [2022-11-18 20:59:11,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:11,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:11,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:11,749 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-18 20:59:11,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:11,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863160517] [2022-11-18 20:59:11,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863160517] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:11,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:11,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:59:11,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633610760] [2022-11-18 20:59:11,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:11,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:59:11,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:11,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:59:11,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:59:11,753 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 397 out of 442 [2022-11-18 20:59:11,755 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 375 transitions, 1039 flow. Second operand has 4 states, 4 states have (on average 398.5) internal successors, (1594), 4 states have internal predecessors, (1594), 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) [2022-11-18 20:59:11,755 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:59:11,755 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 397 of 442 [2022-11-18 20:59:11,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:59:12,369 INFO L130 PetriNetUnfolder]: 154/2139 cut-off events. [2022-11-18 20:59:12,369 INFO L131 PetriNetUnfolder]: For 241/244 co-relation queries the response was YES. [2022-11-18 20:59:12,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2918 conditions, 2139 events. 154/2139 cut-off events. For 241/244 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 15011 event pairs, 100 based on Foata normal form. 0/1897 useless extension candidates. Maximal degree in co-relation 2898. Up to 219 conditions per place. [2022-11-18 20:59:12,381 INFO L137 encePairwiseOnDemand]: 437/442 looper letters, 45 selfloop transitions, 4 changer transitions 0/397 dead transitions. [2022-11-18 20:59:12,382 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 397 transitions, 1182 flow [2022-11-18 20:59:12,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:59:12,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-18 20:59:12,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2035 transitions. [2022-11-18 20:59:12,386 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.920814479638009 [2022-11-18 20:59:12,387 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2035 transitions. [2022-11-18 20:59:12,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2035 transitions. [2022-11-18 20:59:12,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:59:12,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2035 transitions. [2022-11-18 20:59:12,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 407.0) internal successors, (2035), 5 states have internal predecessors, (2035), 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) [2022-11-18 20:59:12,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 442.0) internal successors, (2652), 6 states have internal predecessors, (2652), 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) [2022-11-18 20:59:12,396 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 442.0) internal successors, (2652), 6 states have internal predecessors, (2652), 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) [2022-11-18 20:59:12,396 INFO L175 Difference]: Start difference. First operand has 413 places, 375 transitions, 1039 flow. Second operand 5 states and 2035 transitions. [2022-11-18 20:59:12,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 397 transitions, 1182 flow [2022-11-18 20:59:12,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 380 places, 397 transitions, 1174 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:59:12,406 INFO L231 Difference]: Finished difference. Result has 383 places, 377 transitions, 1056 flow [2022-11-18 20:59:12,406 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=1027, PETRI_DIFFERENCE_MINUEND_PLACES=376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=374, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=370, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1056, PETRI_PLACES=383, PETRI_TRANSITIONS=377} [2022-11-18 20:59:12,407 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, -19 predicate places. [2022-11-18 20:59:12,407 INFO L495 AbstractCegarLoop]: Abstraction has has 383 places, 377 transitions, 1056 flow [2022-11-18 20:59:12,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 398.5) internal successors, (1594), 4 states have internal predecessors, (1594), 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) [2022-11-18 20:59:12,408 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:59:12,408 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:12,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-18 20:59:12,409 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-18 20:59:12,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:12,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1459669917, now seen corresponding path program 1 times [2022-11-18 20:59:12,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:12,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452079671] [2022-11-18 20:59:12,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:12,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:12,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:13,345 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-18 20:59:13,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:13,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452079671] [2022-11-18 20:59:13,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452079671] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:13,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:13,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:59:13,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847924504] [2022-11-18 20:59:13,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:13,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:59:13,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:13,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:59:13,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:59:13,350 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 442 [2022-11-18 20:59:13,352 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 377 transitions, 1056 flow. Second operand has 6 states, 6 states have (on average 365.6666666666667) internal successors, (2194), 6 states have internal predecessors, (2194), 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) [2022-11-18 20:59:13,352 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:59:13,352 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 442 [2022-11-18 20:59:13,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:59:24,212 INFO L130 PetriNetUnfolder]: 11016/42392 cut-off events. [2022-11-18 20:59:24,213 INFO L131 PetriNetUnfolder]: For 1669/1762 co-relation queries the response was YES. [2022-11-18 20:59:24,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65863 conditions, 42392 events. 11016/42392 cut-off events. For 1669/1762 co-relation queries the response was YES. Maximal size of possible extension queue 466. Compared 481352 event pairs, 2870 based on Foata normal form. 4/39600 useless extension candidates. Maximal degree in co-relation 65841. Up to 9814 conditions per place. [2022-11-18 20:59:24,518 INFO L137 encePairwiseOnDemand]: 436/442 looper letters, 148 selfloop transitions, 6 changer transitions 0/472 dead transitions. [2022-11-18 20:59:24,519 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 472 transitions, 1562 flow [2022-11-18 20:59:24,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:59:24,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:59:24,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2325 transitions. [2022-11-18 20:59:24,525 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8766968325791855 [2022-11-18 20:59:24,525 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2325 transitions. [2022-11-18 20:59:24,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2325 transitions. [2022-11-18 20:59:24,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:59:24,526 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2325 transitions. [2022-11-18 20:59:24,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 387.5) internal successors, (2325), 6 states have internal predecessors, (2325), 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) [2022-11-18 20:59:24,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 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) [2022-11-18 20:59:24,536 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 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) [2022-11-18 20:59:24,536 INFO L175 Difference]: Start difference. First operand has 383 places, 377 transitions, 1056 flow. Second operand 6 states and 2325 transitions. [2022-11-18 20:59:24,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 472 transitions, 1562 flow [2022-11-18 20:59:24,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 472 transitions, 1562 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 20:59:24,555 INFO L231 Difference]: Finished difference. Result has 387 places, 376 transitions, 1066 flow [2022-11-18 20:59:24,556 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=1054, PETRI_DIFFERENCE_MINUEND_PLACES=382, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=370, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1066, PETRI_PLACES=387, PETRI_TRANSITIONS=376} [2022-11-18 20:59:24,557 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, -15 predicate places. [2022-11-18 20:59:24,557 INFO L495 AbstractCegarLoop]: Abstraction has has 387 places, 376 transitions, 1066 flow [2022-11-18 20:59:24,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 365.6666666666667) internal successors, (2194), 6 states have internal predecessors, (2194), 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) [2022-11-18 20:59:24,558 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:59:24,558 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:24,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-18 20:59:24,559 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting thread2Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-18 20:59:24,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:24,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1354669915, now seen corresponding path program 1 times [2022-11-18 20:59:24,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:24,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939586667] [2022-11-18 20:59:24,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:24,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:24,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:24,679 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-18 20:59:24,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:24,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939586667] [2022-11-18 20:59:24,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939586667] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:24,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:24,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:59:24,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856523269] [2022-11-18 20:59:24,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:24,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:59:24,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:24,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:59:24,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:59:24,683 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 394 out of 442 [2022-11-18 20:59:24,685 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 376 transitions, 1066 flow. Second operand has 3 states, 3 states have (on average 397.0) internal successors, (1191), 3 states have internal predecessors, (1191), 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) [2022-11-18 20:59:24,685 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:59:24,685 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 394 of 442 [2022-11-18 20:59:24,685 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:59:25,173 INFO L130 PetriNetUnfolder]: 112/1880 cut-off events. [2022-11-18 20:59:25,174 INFO L131 PetriNetUnfolder]: For 227/230 co-relation queries the response was YES. [2022-11-18 20:59:25,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2597 conditions, 1880 events. 112/1880 cut-off events. For 227/230 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 13172 event pairs, 73 based on Foata normal form. 0/1730 useless extension candidates. Maximal degree in co-relation 2574. Up to 221 conditions per place. [2022-11-18 20:59:25,186 INFO L137 encePairwiseOnDemand]: 439/442 looper letters, 17 selfloop transitions, 2 changer transitions 0/376 dead transitions. [2022-11-18 20:59:25,187 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 376 transitions, 1105 flow [2022-11-18 20:59:25,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:59:25,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:59:25,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1200 transitions. [2022-11-18 20:59:25,189 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9049773755656109 [2022-11-18 20:59:25,189 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1200 transitions. [2022-11-18 20:59:25,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1200 transitions. [2022-11-18 20:59:25,189 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:59:25,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1200 transitions. [2022-11-18 20:59:25,192 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 400.0) internal successors, (1200), 3 states have internal predecessors, (1200), 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) [2022-11-18 20:59:25,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 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) [2022-11-18 20:59:25,195 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 442.0) internal successors, (1768), 4 states have internal predecessors, (1768), 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) [2022-11-18 20:59:25,195 INFO L175 Difference]: Start difference. First operand has 387 places, 376 transitions, 1066 flow. Second operand 3 states and 1200 transitions. [2022-11-18 20:59:25,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 376 transitions, 1105 flow [2022-11-18 20:59:25,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 376 transitions, 1093 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:59:25,204 INFO L231 Difference]: Finished difference. Result has 383 places, 375 transitions, 1056 flow [2022-11-18 20:59:25,205 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=1052, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=373, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1056, PETRI_PLACES=383, PETRI_TRANSITIONS=375} [2022-11-18 20:59:25,205 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, -19 predicate places. [2022-11-18 20:59:25,205 INFO L495 AbstractCegarLoop]: Abstraction has has 383 places, 375 transitions, 1056 flow [2022-11-18 20:59:25,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 397.0) internal successors, (1191), 3 states have internal predecessors, (1191), 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) [2022-11-18 20:59:25,206 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:59:25,207 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:25,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-18 20:59:25,207 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-18 20:59:25,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:25,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1611428498, now seen corresponding path program 1 times [2022-11-18 20:59:25,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:25,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639184374] [2022-11-18 20:59:25,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:25,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:25,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:26,103 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-18 20:59:26,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:26,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639184374] [2022-11-18 20:59:26,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639184374] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:26,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:26,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:59:26,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599387156] [2022-11-18 20:59:26,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:26,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:59:26,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:26,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:59:26,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:59:26,108 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 442 [2022-11-18 20:59:26,110 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 383 places, 375 transitions, 1056 flow. Second operand has 6 states, 6 states have (on average 366.5) internal successors, (2199), 6 states have internal predecessors, (2199), 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) [2022-11-18 20:59:26,110 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:59:26,111 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 442 [2022-11-18 20:59:26,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:59:38,231 INFO L130 PetriNetUnfolder]: 10526/47120 cut-off events. [2022-11-18 20:59:38,231 INFO L131 PetriNetUnfolder]: For 1828/1828 co-relation queries the response was YES. [2022-11-18 20:59:38,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70718 conditions, 47120 events. 10526/47120 cut-off events. For 1828/1828 co-relation queries the response was YES. Maximal size of possible extension queue 464. Compared 571654 event pairs, 6692 based on Foata normal form. 0/44479 useless extension candidates. Maximal degree in co-relation 70695. Up to 11081 conditions per place. [2022-11-18 20:59:38,598 INFO L137 encePairwiseOnDemand]: 436/442 looper letters, 123 selfloop transitions, 6 changer transitions 0/446 dead transitions. [2022-11-18 20:59:38,598 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 387 places, 446 transitions, 1464 flow [2022-11-18 20:59:38,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:59:38,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:59:38,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2300 transitions. [2022-11-18 20:59:38,604 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8672699849170438 [2022-11-18 20:59:38,604 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2300 transitions. [2022-11-18 20:59:38,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2300 transitions. [2022-11-18 20:59:38,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:59:38,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2300 transitions. [2022-11-18 20:59:38,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 383.3333333333333) internal successors, (2300), 6 states have internal predecessors, (2300), 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) [2022-11-18 20:59:38,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 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) [2022-11-18 20:59:38,620 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 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) [2022-11-18 20:59:38,620 INFO L175 Difference]: Start difference. First operand has 383 places, 375 transitions, 1056 flow. Second operand 6 states and 2300 transitions. [2022-11-18 20:59:38,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 387 places, 446 transitions, 1464 flow [2022-11-18 20:59:38,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 385 places, 446 transitions, 1460 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:59:38,678 INFO L231 Difference]: Finished difference. Result has 385 places, 374 transitions, 1062 flow [2022-11-18 20:59:38,679 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=1050, PETRI_DIFFERENCE_MINUEND_PLACES=380, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=374, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1062, PETRI_PLACES=385, PETRI_TRANSITIONS=374} [2022-11-18 20:59:38,679 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, -17 predicate places. [2022-11-18 20:59:38,679 INFO L495 AbstractCegarLoop]: Abstraction has has 385 places, 374 transitions, 1062 flow [2022-11-18 20:59:38,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 366.5) internal successors, (2199), 6 states have internal predecessors, (2199), 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) [2022-11-18 20:59:38,681 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:59:38,681 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:38,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-18 20:59:38,682 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-18 20:59:38,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:38,682 INFO L85 PathProgramCache]: Analyzing trace with hash 453368420, now seen corresponding path program 1 times [2022-11-18 20:59:38,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:38,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827977571] [2022-11-18 20:59:38,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:38,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:38,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:59:39,991 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-11-18 20:59:39,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:59:39,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827977571] [2022-11-18 20:59:39,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827977571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:59:39,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:59:39,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:59:39,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165912065] [2022-11-18 20:59:39,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:59:39,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:59:39,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:59:39,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:59:39,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:59:39,999 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 442 [2022-11-18 20:59:40,002 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 374 transitions, 1062 flow. Second operand has 6 states, 6 states have (on average 366.6666666666667) internal successors, (2200), 6 states have internal predecessors, (2200), 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) [2022-11-18 20:59:40,002 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:59:40,003 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 442 [2022-11-18 20:59:40,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:59:52,198 INFO L130 PetriNetUnfolder]: 9813/47202 cut-off events. [2022-11-18 20:59:52,198 INFO L131 PetriNetUnfolder]: For 3120/3213 co-relation queries the response was YES. [2022-11-18 20:59:52,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71635 conditions, 47202 events. 9813/47202 cut-off events. For 3120/3213 co-relation queries the response was YES. Maximal size of possible extension queue 518. Compared 584075 event pairs, 6084 based on Foata normal form. 0/45118 useless extension candidates. Maximal degree in co-relation 71612. Up to 10123 conditions per place. [2022-11-18 20:59:52,546 INFO L137 encePairwiseOnDemand]: 436/442 looper letters, 142 selfloop transitions, 6 changer transitions 0/465 dead transitions. [2022-11-18 20:59:52,546 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 465 transitions, 1580 flow [2022-11-18 20:59:52,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:59:52,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 20:59:52,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2319 transitions. [2022-11-18 20:59:52,552 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8744343891402715 [2022-11-18 20:59:52,552 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2319 transitions. [2022-11-18 20:59:52,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2319 transitions. [2022-11-18 20:59:52,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:59:52,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2319 transitions. [2022-11-18 20:59:52,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 386.5) internal successors, (2319), 6 states have internal predecessors, (2319), 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) [2022-11-18 20:59:52,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 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) [2022-11-18 20:59:52,565 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 442.0) internal successors, (3094), 7 states have internal predecessors, (3094), 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) [2022-11-18 20:59:52,565 INFO L175 Difference]: Start difference. First operand has 385 places, 374 transitions, 1062 flow. Second operand 6 states and 2319 transitions. [2022-11-18 20:59:52,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 465 transitions, 1580 flow [2022-11-18 20:59:52,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 465 transitions, 1536 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 20:59:52,616 INFO L231 Difference]: Finished difference. Result has 384 places, 373 transitions, 1060 flow [2022-11-18 20:59:52,617 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=442, PETRI_DIFFERENCE_MINUEND_FLOW=1048, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1060, PETRI_PLACES=384, PETRI_TRANSITIONS=373} [2022-11-18 20:59:52,617 INFO L288 CegarLoopForPetriNet]: 402 programPoint places, -18 predicate places. [2022-11-18 20:59:52,617 INFO L495 AbstractCegarLoop]: Abstraction has has 384 places, 373 transitions, 1060 flow [2022-11-18 20:59:52,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 366.6666666666667) internal successors, (2200), 6 states have internal predecessors, (2200), 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) [2022-11-18 20:59:52,618 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:59:52,619 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:59:52,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-18 20:59:52,619 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-18 20:59:52,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:59:52,620 INFO L85 PathProgramCache]: Analyzing trace with hash 624798212, now seen corresponding path program 1 times [2022-11-18 20:59:52,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:59:52,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676998411] [2022-11-18 20:59:52,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:59:52,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:59:52,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat