./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/27_Boop_simple_vf.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a 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_b23ff783-5d9a-467a-b856-49c5ec11487d/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b23ff783-5d9a-467a-b856-49c5ec11487d/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b23ff783-5d9a-467a-b856-49c5ec11487d/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b23ff783-5d9a-467a-b856-49c5ec11487d/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/27_Boop_simple_vf.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b23ff783-5d9a-467a-b856-49c5ec11487d/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b23ff783-5d9a-467a-b856-49c5ec11487d/bin/uautomizer-Dbtcem3rbc --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 ce64fcfa63b9df647c320ea90e20b624e2dad5b9ca256083b6d2f56c3177560a --- 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-5e519f3 [2022-11-02 20:12:42,712 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:12:42,714 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:12:42,739 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:12:42,739 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:12:42,740 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:12:42,742 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:12:42,743 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:12:42,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:12:42,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:12:42,747 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:12:42,748 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:12:42,748 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:12:42,749 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:12:42,750 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:12:42,752 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:12:42,752 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:12:42,753 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:12:42,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:12:42,756 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:12:42,758 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:12:42,759 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:12:42,760 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:12:42,761 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:12:42,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:12:42,765 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:12:42,765 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:12:42,766 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:12:42,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:12:42,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:12:42,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:12:42,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:12:42,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:12:42,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:12:42,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:12:42,771 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:12:42,772 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:12:42,772 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:12:42,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:12:42,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:12:42,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:12:42,775 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b23ff783-5d9a-467a-b856-49c5ec11487d/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:12:42,796 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:12:42,797 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:12:42,797 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:12:42,797 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:12:42,798 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:12:42,798 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:12:42,799 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:12:42,799 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:12:42,799 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:12:42,799 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:12:42,800 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:12:42,800 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:12:42,800 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:12:42,800 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:12:42,800 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:12:42,800 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:12:42,801 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:12:42,801 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:12:42,801 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:12:42,801 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:12:42,801 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:12:42,802 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:12:42,802 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:12:42,802 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:12:42,802 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:12:42,802 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:12:42,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:12:42,803 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:12:42,803 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:12:42,803 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:12:42,803 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:12:42,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:12:42,804 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:12:42,804 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:12:42,804 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:12:42,804 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_b23ff783-5d9a-467a-b856-49c5ec11487d/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b23ff783-5d9a-467a-b856-49c5ec11487d/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce64fcfa63b9df647c320ea90e20b624e2dad5b9ca256083b6d2f56c3177560a [2022-11-02 20:12:43,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:12:43,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:12:43,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:12:43,079 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:12:43,080 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:12:43,081 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b23ff783-5d9a-467a-b856-49c5ec11487d/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/pthread-ext/27_Boop_simple_vf.i [2022-11-02 20:12:43,183 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b23ff783-5d9a-467a-b856-49c5ec11487d/bin/uautomizer-Dbtcem3rbc/data/5f535ec70/d328a7740e6349abbb70cd3a99865834/FLAGa7eb824f6 [2022-11-02 20:12:43,713 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:12:43,713 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b23ff783-5d9a-467a-b856-49c5ec11487d/sv-benchmarks/c/pthread-ext/27_Boop_simple_vf.i [2022-11-02 20:12:43,733 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b23ff783-5d9a-467a-b856-49c5ec11487d/bin/uautomizer-Dbtcem3rbc/data/5f535ec70/d328a7740e6349abbb70cd3a99865834/FLAGa7eb824f6 [2022-11-02 20:12:44,016 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b23ff783-5d9a-467a-b856-49c5ec11487d/bin/uautomizer-Dbtcem3rbc/data/5f535ec70/d328a7740e6349abbb70cd3a99865834 [2022-11-02 20:12:44,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:12:44,020 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:12:44,023 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:12:44,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:12:44,027 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:12:44,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:12:44" (1/1) ... [2022-11-02 20:12:44,030 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bb1ddb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:44, skipping insertion in model container [2022-11-02 20:12:44,030 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:12:44" (1/1) ... [2022-11-02 20:12:44,038 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:12:44,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:12:44,571 WARN L230 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_b23ff783-5d9a-467a-b856-49c5ec11487d/sv-benchmarks/c/pthread-ext/27_Boop_simple_vf.i[30297,30310] [2022-11-02 20:12:44,582 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:12:44,590 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:12:44,649 WARN L230 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_b23ff783-5d9a-467a-b856-49c5ec11487d/sv-benchmarks/c/pthread-ext/27_Boop_simple_vf.i[30297,30310] [2022-11-02 20:12:44,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:12:44,681 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:12:44,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:44 WrapperNode [2022-11-02 20:12:44,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:12:44,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:12:44,683 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:12:44,683 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:12:44,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:44" (1/1) ... [2022-11-02 20:12:44,722 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:44" (1/1) ... [2022-11-02 20:12:44,754 INFO L138 Inliner]: procedures = 170, calls = 15, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 108 [2022-11-02 20:12:44,755 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:12:44,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:12:44,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:12:44,756 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:12:44,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:44" (1/1) ... [2022-11-02 20:12:44,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:44" (1/1) ... [2022-11-02 20:12:44,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:44" (1/1) ... [2022-11-02 20:12:44,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:44" (1/1) ... [2022-11-02 20:12:44,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:44" (1/1) ... [2022-11-02 20:12:44,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:44" (1/1) ... [2022-11-02 20:12:44,788 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:44" (1/1) ... [2022-11-02 20:12:44,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:44" (1/1) ... [2022-11-02 20:12:44,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:12:44,804 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:12:44,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:12:44,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:12:44,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:44" (1/1) ... [2022-11-02 20:12:44,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:12:44,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b23ff783-5d9a-467a-b856-49c5ec11487d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:12:44,851 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b23ff783-5d9a-467a-b856-49c5ec11487d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:12:44,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b23ff783-5d9a-467a-b856-49c5ec11487d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:12:44,896 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-11-02 20:12:44,896 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-11-02 20:12:44,896 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-02 20:12:44,896 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-02 20:12:44,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:12:44,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:12:44,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:12:44,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:12:44,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:12:44,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:12:44,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:12:44,901 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:12:45,117 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:12:45,119 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:12:45,371 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:12:45,379 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:12:45,380 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-02 20:12:45,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:12:45 BoogieIcfgContainer [2022-11-02 20:12:45,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:12:45,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:12:45,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:12:45,388 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:12:45,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:12:44" (1/3) ... [2022-11-02 20:12:45,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64772500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:12:45, skipping insertion in model container [2022-11-02 20:12:45,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:12:44" (2/3) ... [2022-11-02 20:12:45,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64772500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:12:45, skipping insertion in model container [2022-11-02 20:12:45,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:12:45" (3/3) ... [2022-11-02 20:12:45,391 INFO L112 eAbstractionObserver]: Analyzing ICFG 27_Boop_simple_vf.i [2022-11-02 20:12:45,399 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:12:45,409 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:12:45,410 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2022-11-02 20:12:45,410 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:12:45,507 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 20:12:45,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 163 transitions, 336 flow [2022-11-02 20:12:45,619 INFO L130 PetriNetUnfolder]: 13/173 cut-off events. [2022-11-02 20:12:45,620 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:12:45,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 173 events. 13/173 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 363 event pairs, 0 based on Foata normal form. 0/141 useless extension candidates. Maximal degree in co-relation 154. Up to 4 conditions per place. [2022-11-02 20:12:45,635 INFO L82 GeneralOperation]: Start removeDead. Operand has 157 places, 163 transitions, 336 flow [2022-11-02 20:12:45,649 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 162 transitions, 332 flow [2022-11-02 20:12:45,659 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:12:45,666 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;@132830f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:12:45,666 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2022-11-02 20:12:45,676 INFO L130 PetriNetUnfolder]: 1/41 cut-off events. [2022-11-02 20:12:45,677 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:12:45,677 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:45,678 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:12:45,678 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-02 20:12:45,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:45,683 INFO L85 PathProgramCache]: Analyzing trace with hash -705481464, now seen corresponding path program 1 times [2022-11-02 20:12:45,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:45,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065717586] [2022-11-02 20:12:45,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:45,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:45,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:45,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:12:45,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:45,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065717586] [2022-11-02 20:12:45,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065717586] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:45,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:12:45,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:12:45,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510864132] [2022-11-02 20:12:45,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:45,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:12:45,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:45,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:12:45,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:12:46,001 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 163 [2022-11-02 20:12:46,008 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 162 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 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) [2022-11-02 20:12:46,009 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:12:46,009 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 163 [2022-11-02 20:12:46,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:12:46,343 INFO L130 PetriNetUnfolder]: 180/907 cut-off events. [2022-11-02 20:12:46,343 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-11-02 20:12:46,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1290 conditions, 907 events. 180/907 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 5444 event pairs, 123 based on Foata normal form. 217/933 useless extension candidates. Maximal degree in co-relation 1261. Up to 305 conditions per place. [2022-11-02 20:12:46,357 INFO L137 encePairwiseOnDemand]: 149/163 looper letters, 32 selfloop transitions, 5 changer transitions 0/157 dead transitions. [2022-11-02 20:12:46,357 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 157 transitions, 399 flow [2022-11-02 20:12:46,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:12:46,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:12:46,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 427 transitions. [2022-11-02 20:12:46,388 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8732106339468303 [2022-11-02 20:12:46,389 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 427 transitions. [2022-11-02 20:12:46,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 427 transitions. [2022-11-02 20:12:46,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:12:46,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 427 transitions. [2022-11-02 20:12:46,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 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) [2022-11-02 20:12:46,414 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:46,415 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:46,417 INFO L175 Difference]: Start difference. First operand has 156 places, 162 transitions, 332 flow. Second operand 3 states and 427 transitions. [2022-11-02 20:12:46,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 157 transitions, 399 flow [2022-11-02 20:12:46,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 157 transitions, 398 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 20:12:46,430 INFO L231 Difference]: Finished difference. Result has 152 places, 152 transitions, 341 flow [2022-11-02 20:12:46,433 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=303, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=341, PETRI_PLACES=152, PETRI_TRANSITIONS=152} [2022-11-02 20:12:46,438 INFO L287 CegarLoopForPetriNet]: 156 programPoint places, -4 predicate places. [2022-11-02 20:12:46,438 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 152 transitions, 341 flow [2022-11-02 20:12:46,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 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) [2022-11-02 20:12:46,439 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:46,439 INFO L208 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] [2022-11-02 20:12:46,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:12:46,440 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-02 20:12:46,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:46,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1564871874, now seen corresponding path program 1 times [2022-11-02 20:12:46,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:46,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381192138] [2022-11-02 20:12:46,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:46,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:46,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:46,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:12:46,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:46,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381192138] [2022-11-02 20:12:46,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381192138] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:46,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:12:46,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:12:46,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745906622] [2022-11-02 20:12:46,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:46,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:12:46,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:46,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:12:46,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:12:46,556 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 146 out of 163 [2022-11-02 20:12:46,556 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 152 transitions, 341 flow. Second operand has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 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) [2022-11-02 20:12:46,556 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:12:46,557 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 146 of 163 [2022-11-02 20:12:46,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:12:46,711 INFO L130 PetriNetUnfolder]: 52/690 cut-off events. [2022-11-02 20:12:46,711 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-11-02 20:12:46,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 801 conditions, 690 events. 52/690 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4099 event pairs, 7 based on Foata normal form. 0/558 useless extension candidates. Maximal degree in co-relation 771. Up to 29 conditions per place. [2022-11-02 20:12:46,720 INFO L137 encePairwiseOnDemand]: 159/163 looper letters, 10 selfloop transitions, 3 changer transitions 0/157 dead transitions. [2022-11-02 20:12:46,720 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 157 transitions, 377 flow [2022-11-02 20:12:46,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:12:46,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:12:46,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 452 transitions. [2022-11-02 20:12:46,723 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9243353783231084 [2022-11-02 20:12:46,724 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 452 transitions. [2022-11-02 20:12:46,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 452 transitions. [2022-11-02 20:12:46,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:12:46,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 452 transitions. [2022-11-02 20:12:46,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 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) [2022-11-02 20:12:46,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:46,729 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:46,729 INFO L175 Difference]: Start difference. First operand has 152 places, 152 transitions, 341 flow. Second operand 3 states and 452 transitions. [2022-11-02 20:12:46,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 157 transitions, 377 flow [2022-11-02 20:12:46,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 157 transitions, 367 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:12:46,738 INFO L231 Difference]: Finished difference. Result has 154 places, 155 transitions, 357 flow [2022-11-02 20:12:46,738 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=331, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=357, PETRI_PLACES=154, PETRI_TRANSITIONS=155} [2022-11-02 20:12:46,740 INFO L287 CegarLoopForPetriNet]: 156 programPoint places, -2 predicate places. [2022-11-02 20:12:46,740 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 155 transitions, 357 flow [2022-11-02 20:12:46,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.33333333333334) internal successors, (442), 3 states have internal predecessors, (442), 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) [2022-11-02 20:12:46,741 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:46,742 INFO L208 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] [2022-11-02 20:12:46,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:12:46,743 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-02 20:12:46,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:46,746 INFO L85 PathProgramCache]: Analyzing trace with hash -2111636225, now seen corresponding path program 1 times [2022-11-02 20:12:46,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:46,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817238976] [2022-11-02 20:12:46,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:46,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:46,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:12:46,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:46,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817238976] [2022-11-02 20:12:46,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817238976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:46,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:12:46,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:12:46,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326480993] [2022-11-02 20:12:46,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:46,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:12:46,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:46,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:12:46,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:12:46,874 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 163 [2022-11-02 20:12:46,876 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 155 transitions, 357 flow. Second operand has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 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) [2022-11-02 20:12:46,876 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:12:46,876 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 163 [2022-11-02 20:12:46,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:12:47,240 INFO L130 PetriNetUnfolder]: 202/1563 cut-off events. [2022-11-02 20:12:47,240 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2022-11-02 20:12:47,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1988 conditions, 1563 events. 202/1563 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 11879 event pairs, 99 based on Foata normal form. 0/1233 useless extension candidates. Maximal degree in co-relation 1957. Up to 302 conditions per place. [2022-11-02 20:12:47,254 INFO L137 encePairwiseOnDemand]: 157/163 looper letters, 23 selfloop transitions, 5 changer transitions 0/164 dead transitions. [2022-11-02 20:12:47,254 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 164 transitions, 434 flow [2022-11-02 20:12:47,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:12:47,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:12:47,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 434 transitions. [2022-11-02 20:12:47,257 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8875255623721882 [2022-11-02 20:12:47,257 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 434 transitions. [2022-11-02 20:12:47,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 434 transitions. [2022-11-02 20:12:47,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:12:47,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 434 transitions. [2022-11-02 20:12:47,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 144.66666666666666) internal successors, (434), 3 states have internal predecessors, (434), 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) [2022-11-02 20:12:47,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:47,263 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:47,263 INFO L175 Difference]: Start difference. First operand has 154 places, 155 transitions, 357 flow. Second operand 3 states and 434 transitions. [2022-11-02 20:12:47,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 164 transitions, 434 flow [2022-11-02 20:12:47,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 164 transitions, 428 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:12:47,271 INFO L231 Difference]: Finished difference. Result has 156 places, 159 transitions, 389 flow [2022-11-02 20:12:47,271 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=389, PETRI_PLACES=156, PETRI_TRANSITIONS=159} [2022-11-02 20:12:47,273 INFO L287 CegarLoopForPetriNet]: 156 programPoint places, 0 predicate places. [2022-11-02 20:12:47,273 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 159 transitions, 389 flow [2022-11-02 20:12:47,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.33333333333334) internal successors, (409), 3 states have internal predecessors, (409), 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) [2022-11-02 20:12:47,274 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:47,274 INFO L208 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] [2022-11-02 20:12:47,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:12:47,275 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-02 20:12:47,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:47,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1523380482, now seen corresponding path program 1 times [2022-11-02 20:12:47,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:47,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036767060] [2022-11-02 20:12:47,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:47,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:47,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:47,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:12:47,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:47,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036767060] [2022-11-02 20:12:47,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036767060] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:47,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:12:47,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:12:47,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149657175] [2022-11-02 20:12:47,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:47,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:12:47,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:47,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:12:47,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:12:47,354 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 163 [2022-11-02 20:12:47,355 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 159 transitions, 389 flow. Second operand has 3 states, 3 states have (on average 149.33333333333334) internal successors, (448), 3 states have internal predecessors, (448), 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) [2022-11-02 20:12:47,355 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:12:47,355 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 163 [2022-11-02 20:12:47,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:12:47,446 INFO L130 PetriNetUnfolder]: 31/585 cut-off events. [2022-11-02 20:12:47,446 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-02 20:12:47,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 651 conditions, 585 events. 31/585 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3361 event pairs, 0 based on Foata normal form. 0/475 useless extension candidates. Maximal degree in co-relation 618. Up to 14 conditions per place. [2022-11-02 20:12:47,453 INFO L137 encePairwiseOnDemand]: 159/163 looper letters, 5 selfloop transitions, 3 changer transitions 0/151 dead transitions. [2022-11-02 20:12:47,453 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 151 transitions, 366 flow [2022-11-02 20:12:47,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:12:47,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:12:47,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 453 transitions. [2022-11-02 20:12:47,455 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9263803680981595 [2022-11-02 20:12:47,455 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 453 transitions. [2022-11-02 20:12:47,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 453 transitions. [2022-11-02 20:12:47,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:12:47,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 453 transitions. [2022-11-02 20:12:47,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.0) internal successors, (453), 3 states have internal predecessors, (453), 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) [2022-11-02 20:12:47,458 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:47,459 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 163.0) internal successors, (652), 4 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:47,459 INFO L175 Difference]: Start difference. First operand has 156 places, 159 transitions, 389 flow. Second operand 3 states and 453 transitions. [2022-11-02 20:12:47,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 151 transitions, 366 flow [2022-11-02 20:12:47,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 151 transitions, 342 flow, removed 6 selfloop flow, removed 6 redundant places. [2022-11-02 20:12:47,463 INFO L231 Difference]: Finished difference. Result has 152 places, 150 transitions, 337 flow [2022-11-02 20:12:47,464 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=337, PETRI_PLACES=152, PETRI_TRANSITIONS=150} [2022-11-02 20:12:47,464 INFO L287 CegarLoopForPetriNet]: 156 programPoint places, -4 predicate places. [2022-11-02 20:12:47,465 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 150 transitions, 337 flow [2022-11-02 20:12:47,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.33333333333334) internal successors, (448), 3 states have internal predecessors, (448), 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) [2022-11-02 20:12:47,465 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:47,465 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:12:47,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:12:47,466 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2022-11-02 20:12:47,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:47,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1194238936, now seen corresponding path program 1 times [2022-11-02 20:12:47,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:47,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508982408] [2022-11-02 20:12:47,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:47,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:47,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:12:47,497 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:12:47,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:12:47,540 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:12:47,541 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:12:47,542 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 36 remaining) [2022-11-02 20:12:47,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2022-11-02 20:12:47,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2022-11-02 20:12:47,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2022-11-02 20:12:47,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2022-11-02 20:12:47,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2022-11-02 20:12:47,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2022-11-02 20:12:47,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2022-11-02 20:12:47,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2022-11-02 20:12:47,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (26 of 36 remaining) [2022-11-02 20:12:47,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2022-11-02 20:12:47,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2022-11-02 20:12:47,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2022-11-02 20:12:47,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2022-11-02 20:12:47,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2022-11-02 20:12:47,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2022-11-02 20:12:47,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2022-11-02 20:12:47,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2022-11-02 20:12:47,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 36 remaining) [2022-11-02 20:12:47,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2022-11-02 20:12:47,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2022-11-02 20:12:47,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (14 of 36 remaining) [2022-11-02 20:12:47,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2022-11-02 20:12:47,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2022-11-02 20:12:47,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2022-11-02 20:12:47,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2022-11-02 20:12:47,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2022-11-02 20:12:47,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2022-11-02 20:12:47,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2022-11-02 20:12:47,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2022-11-02 20:12:47,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2022-11-02 20:12:47,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2022-11-02 20:12:47,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2022-11-02 20:12:47,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2022-11-02 20:12:47,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2022-11-02 20:12:47,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (0 of 36 remaining) [2022-11-02 20:12:47,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:12:47,559 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-02 20:12:47,561 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-02 20:12:47,562 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-02 20:12:47,623 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 20:12:47,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 275 places, 288 transitions, 600 flow [2022-11-02 20:12:47,672 INFO L130 PetriNetUnfolder]: 17/223 cut-off events. [2022-11-02 20:12:47,673 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-02 20:12:47,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 223 events. 17/223 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 658 event pairs, 0 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 232. Up to 6 conditions per place. [2022-11-02 20:12:47,676 INFO L82 GeneralOperation]: Start removeDead. Operand has 275 places, 288 transitions, 600 flow [2022-11-02 20:12:47,679 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 192 places, 199 transitions, 413 flow [2022-11-02 20:12:47,680 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:12:47,681 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;@132830f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:12:47,681 INFO L358 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2022-11-02 20:12:47,686 INFO L130 PetriNetUnfolder]: 1/40 cut-off events. [2022-11-02 20:12:47,686 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:12:47,686 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:47,686 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:12:47,687 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 20:12:47,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:47,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1136655568, now seen corresponding path program 1 times [2022-11-02 20:12:47,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:47,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558777455] [2022-11-02 20:12:47,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:47,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:47,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:12:47,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:47,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558777455] [2022-11-02 20:12:47,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558777455] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:47,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:12:47,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:12:47,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247996268] [2022-11-02 20:12:47,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:47,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:12:47,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:47,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:12:47,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:12:47,724 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 288 [2022-11-02 20:12:47,725 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 199 transitions, 413 flow. Second operand has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:47,725 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:12:47,725 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 288 [2022-11-02 20:12:47,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:12:49,085 INFO L130 PetriNetUnfolder]: 2433/7729 cut-off events. [2022-11-02 20:12:49,085 INFO L131 PetriNetUnfolder]: For 496/496 co-relation queries the response was YES. [2022-11-02 20:12:49,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11841 conditions, 7729 events. 2433/7729 cut-off events. For 496/496 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 74550 event pairs, 1870 based on Foata normal form. 1778/7685 useless extension candidates. Maximal degree in co-relation 11811. Up to 3286 conditions per place. [2022-11-02 20:12:49,185 INFO L137 encePairwiseOnDemand]: 271/288 looper letters, 44 selfloop transitions, 7 changer transitions 0/200 dead transitions. [2022-11-02 20:12:49,185 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 200 transitions, 525 flow [2022-11-02 20:12:49,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:12:49,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:12:49,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 719 transitions. [2022-11-02 20:12:49,187 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8321759259259259 [2022-11-02 20:12:49,188 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 719 transitions. [2022-11-02 20:12:49,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 719 transitions. [2022-11-02 20:12:49,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:12:49,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 719 transitions. [2022-11-02 20:12:49,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 239.66666666666666) internal successors, (719), 3 states have internal predecessors, (719), 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) [2022-11-02 20:12:49,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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) [2022-11-02 20:12:49,193 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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) [2022-11-02 20:12:49,193 INFO L175 Difference]: Start difference. First operand has 192 places, 199 transitions, 413 flow. Second operand 3 states and 719 transitions. [2022-11-02 20:12:49,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 200 transitions, 525 flow [2022-11-02 20:12:49,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 200 transitions, 522 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-11-02 20:12:49,199 INFO L231 Difference]: Finished difference. Result has 188 places, 190 transitions, 434 flow [2022-11-02 20:12:49,200 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=434, PETRI_PLACES=188, PETRI_TRANSITIONS=190} [2022-11-02 20:12:49,203 INFO L287 CegarLoopForPetriNet]: 192 programPoint places, -4 predicate places. [2022-11-02 20:12:49,203 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 190 transitions, 434 flow [2022-11-02 20:12:49,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:12:49,204 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:49,206 INFO L208 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] [2022-11-02 20:12:49,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:12:49,206 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 20:12:49,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:49,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1737447303, now seen corresponding path program 1 times [2022-11-02 20:12:49,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:49,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773462120] [2022-11-02 20:12:49,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:49,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:49,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:49,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:12:49,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:49,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773462120] [2022-11-02 20:12:49,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773462120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:49,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:12:49,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:12:49,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731959512] [2022-11-02 20:12:49,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:49,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:12:49,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:49,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:12:49,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:12:49,277 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 288 [2022-11-02 20:12:49,278 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 190 transitions, 434 flow. Second operand has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 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) [2022-11-02 20:12:49,278 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:12:49,278 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 288 [2022-11-02 20:12:49,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:12:49,971 INFO L130 PetriNetUnfolder]: 491/4018 cut-off events. [2022-11-02 20:12:49,971 INFO L131 PetriNetUnfolder]: For 130/130 co-relation queries the response was YES. [2022-11-02 20:12:49,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4919 conditions, 4018 events. 491/4018 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 42017 event pairs, 96 based on Foata normal form. 0/3199 useless extension candidates. Maximal degree in co-relation 4888. Up to 250 conditions per place. [2022-11-02 20:12:50,015 INFO L137 encePairwiseOnDemand]: 281/288 looper letters, 15 selfloop transitions, 5 changer transitions 0/198 dead transitions. [2022-11-02 20:12:50,015 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 198 transitions, 495 flow [2022-11-02 20:12:50,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:12:50,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:12:50,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 790 transitions. [2022-11-02 20:12:50,018 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9143518518518519 [2022-11-02 20:12:50,018 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 790 transitions. [2022-11-02 20:12:50,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 790 transitions. [2022-11-02 20:12:50,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:12:50,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 790 transitions. [2022-11-02 20:12:50,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 263.3333333333333) internal successors, (790), 3 states have internal predecessors, (790), 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) [2022-11-02 20:12:50,024 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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) [2022-11-02 20:12:50,025 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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) [2022-11-02 20:12:50,025 INFO L175 Difference]: Start difference. First operand has 188 places, 190 transitions, 434 flow. Second operand 3 states and 790 transitions. [2022-11-02 20:12:50,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 198 transitions, 495 flow [2022-11-02 20:12:50,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 198 transitions, 481 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:12:50,032 INFO L231 Difference]: Finished difference. Result has 190 places, 195 transitions, 464 flow [2022-11-02 20:12:50,032 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=464, PETRI_PLACES=190, PETRI_TRANSITIONS=195} [2022-11-02 20:12:50,034 INFO L287 CegarLoopForPetriNet]: 192 programPoint places, -2 predicate places. [2022-11-02 20:12:50,034 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 195 transitions, 464 flow [2022-11-02 20:12:50,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 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) [2022-11-02 20:12:50,035 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:50,035 INFO L208 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] [2022-11-02 20:12:50,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:12:50,036 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 20:12:50,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:50,036 INFO L85 PathProgramCache]: Analyzing trace with hash -806239621, now seen corresponding path program 1 times [2022-11-02 20:12:50,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:50,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898344554] [2022-11-02 20:12:50,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:50,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:50,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:50,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:12:50,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:50,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898344554] [2022-11-02 20:12:50,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898344554] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:50,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:12:50,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:12:50,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358886020] [2022-11-02 20:12:50,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:50,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:12:50,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:50,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:12:50,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:12:50,107 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 288 [2022-11-02 20:12:50,109 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 195 transitions, 464 flow. Second operand has 3 states, 3 states have (on average 237.33333333333334) internal successors, (712), 3 states have internal predecessors, (712), 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) [2022-11-02 20:12:50,109 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:12:50,109 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 288 [2022-11-02 20:12:50,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:12:53,122 INFO L130 PetriNetUnfolder]: 3855/19917 cut-off events. [2022-11-02 20:12:53,123 INFO L131 PetriNetUnfolder]: For 597/604 co-relation queries the response was YES. [2022-11-02 20:12:53,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26535 conditions, 19917 events. 3855/19917 cut-off events. For 597/604 co-relation queries the response was YES. Maximal size of possible extension queue 628. Compared 261362 event pairs, 2384 based on Foata normal form. 0/15452 useless extension candidates. Maximal degree in co-relation 26503. Up to 5096 conditions per place. [2022-11-02 20:12:53,468 INFO L137 encePairwiseOnDemand]: 280/288 looper letters, 35 selfloop transitions, 7 changer transitions 0/211 dead transitions. [2022-11-02 20:12:53,469 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 211 transitions, 588 flow [2022-11-02 20:12:53,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:12:53,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:12:53,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 751 transitions. [2022-11-02 20:12:53,471 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8692129629629629 [2022-11-02 20:12:53,472 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 751 transitions. [2022-11-02 20:12:53,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 751 transitions. [2022-11-02 20:12:53,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:12:53,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 751 transitions. [2022-11-02 20:12:53,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 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) [2022-11-02 20:12:53,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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) [2022-11-02 20:12:53,477 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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) [2022-11-02 20:12:53,477 INFO L175 Difference]: Start difference. First operand has 190 places, 195 transitions, 464 flow. Second operand 3 states and 751 transitions. [2022-11-02 20:12:53,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 211 transitions, 588 flow [2022-11-02 20:12:53,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 211 transitions, 578 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:12:53,482 INFO L231 Difference]: Finished difference. Result has 192 places, 201 transitions, 508 flow [2022-11-02 20:12:53,483 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=508, PETRI_PLACES=192, PETRI_TRANSITIONS=201} [2022-11-02 20:12:53,484 INFO L287 CegarLoopForPetriNet]: 192 programPoint places, 0 predicate places. [2022-11-02 20:12:53,484 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 201 transitions, 508 flow [2022-11-02 20:12:53,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 237.33333333333334) internal successors, (712), 3 states have internal predecessors, (712), 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) [2022-11-02 20:12:53,484 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:53,485 INFO L208 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] [2022-11-02 20:12:53,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:12:53,485 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 20:12:53,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:53,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1642454241, now seen corresponding path program 1 times [2022-11-02 20:12:53,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:53,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090030431] [2022-11-02 20:12:53,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:53,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:53,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:53,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:12:53,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:53,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090030431] [2022-11-02 20:12:53,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090030431] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:53,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:12:53,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:12:53,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064868182] [2022-11-02 20:12:53,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:53,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:12:53,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:53,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:12:53,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:12:53,522 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 288 [2022-11-02 20:12:53,523 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 201 transitions, 508 flow. Second operand has 3 states, 3 states have (on average 262.3333333333333) internal successors, (787), 3 states have internal predecessors, (787), 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) [2022-11-02 20:12:53,524 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:12:53,524 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 288 [2022-11-02 20:12:53,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:12:53,933 INFO L130 PetriNetUnfolder]: 276/3223 cut-off events. [2022-11-02 20:12:53,933 INFO L131 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2022-11-02 20:12:53,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3689 conditions, 3223 events. 276/3223 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 33812 event pairs, 37 based on Foata normal form. 0/2562 useless extension candidates. Maximal degree in co-relation 3655. Up to 149 conditions per place. [2022-11-02 20:12:53,983 INFO L137 encePairwiseOnDemand]: 282/288 looper letters, 9 selfloop transitions, 4 changer transitions 0/191 dead transitions. [2022-11-02 20:12:53,983 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 191 transitions, 484 flow [2022-11-02 20:12:53,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:12:53,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:12:53,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 798 transitions. [2022-11-02 20:12:53,986 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9236111111111112 [2022-11-02 20:12:53,986 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 798 transitions. [2022-11-02 20:12:53,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 798 transitions. [2022-11-02 20:12:53,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:12:53,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 798 transitions. [2022-11-02 20:12:53,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 266.0) internal successors, (798), 3 states have internal predecessors, (798), 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) [2022-11-02 20:12:53,991 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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) [2022-11-02 20:12:53,991 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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) [2022-11-02 20:12:53,991 INFO L175 Difference]: Start difference. First operand has 192 places, 201 transitions, 508 flow. Second operand 3 states and 798 transitions. [2022-11-02 20:12:53,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 191 transitions, 484 flow [2022-11-02 20:12:53,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 191 transitions, 472 flow, removed 2 selfloop flow, removed 4 redundant places. [2022-11-02 20:12:53,996 INFO L231 Difference]: Finished difference. Result has 190 places, 189 transitions, 458 flow [2022-11-02 20:12:53,996 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=458, PETRI_PLACES=190, PETRI_TRANSITIONS=189} [2022-11-02 20:12:53,997 INFO L287 CegarLoopForPetriNet]: 192 programPoint places, -2 predicate places. [2022-11-02 20:12:53,997 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 189 transitions, 458 flow [2022-11-02 20:12:53,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 262.3333333333333) internal successors, (787), 3 states have internal predecessors, (787), 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) [2022-11-02 20:12:53,998 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:53,998 INFO L208 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] [2022-11-02 20:12:53,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:12:53,998 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 20:12:53,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:53,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1992872394, now seen corresponding path program 1 times [2022-11-02 20:12:53,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:53,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975026993] [2022-11-02 20:12:53,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:53,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:54,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:54,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:12:54,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:54,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975026993] [2022-11-02 20:12:54,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975026993] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:54,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:12:54,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:12:54,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684441613] [2022-11-02 20:12:54,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:54,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:12:54,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:54,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:12:54,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:12:54,026 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 288 [2022-11-02 20:12:54,027 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 189 transitions, 458 flow. Second operand has 3 states, 3 states have (on average 255.33333333333334) internal successors, (766), 3 states have internal predecessors, (766), 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) [2022-11-02 20:12:54,027 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:12:54,028 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 288 [2022-11-02 20:12:54,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:12:55,023 INFO L130 PetriNetUnfolder]: 1012/7457 cut-off events. [2022-11-02 20:12:55,024 INFO L131 PetriNetUnfolder]: For 549/561 co-relation queries the response was YES. [2022-11-02 20:12:55,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10079 conditions, 7457 events. 1012/7457 cut-off events. For 549/561 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 90841 event pairs, 231 based on Foata normal form. 6/6057 useless extension candidates. Maximal degree in co-relation 10043. Up to 754 conditions per place. [2022-11-02 20:12:55,114 INFO L137 encePairwiseOnDemand]: 282/288 looper letters, 25 selfloop transitions, 8 changer transitions 0/203 dead transitions. [2022-11-02 20:12:55,115 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 203 transitions, 580 flow [2022-11-02 20:12:55,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:12:55,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:12:55,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 787 transitions. [2022-11-02 20:12:55,118 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9108796296296297 [2022-11-02 20:12:55,118 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 787 transitions. [2022-11-02 20:12:55,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 787 transitions. [2022-11-02 20:12:55,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:12:55,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 787 transitions. [2022-11-02 20:12:55,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 262.3333333333333) internal successors, (787), 3 states have internal predecessors, (787), 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) [2022-11-02 20:12:55,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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) [2022-11-02 20:12:55,124 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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) [2022-11-02 20:12:55,124 INFO L175 Difference]: Start difference. First operand has 190 places, 189 transitions, 458 flow. Second operand 3 states and 787 transitions. [2022-11-02 20:12:55,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 203 transitions, 580 flow [2022-11-02 20:12:55,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 203 transitions, 572 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:12:55,138 INFO L231 Difference]: Finished difference. Result has 192 places, 195 transitions, 516 flow [2022-11-02 20:12:55,138 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=516, PETRI_PLACES=192, PETRI_TRANSITIONS=195} [2022-11-02 20:12:55,139 INFO L287 CegarLoopForPetriNet]: 192 programPoint places, 0 predicate places. [2022-11-02 20:12:55,140 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 195 transitions, 516 flow [2022-11-02 20:12:55,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 255.33333333333334) internal successors, (766), 3 states have internal predecessors, (766), 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) [2022-11-02 20:12:55,142 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:55,142 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:12:55,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:12:55,143 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 20:12:55,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:55,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1571072963, now seen corresponding path program 1 times [2022-11-02 20:12:55,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:55,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977459523] [2022-11-02 20:12:55,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:55,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:55,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:55,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:12:55,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:55,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977459523] [2022-11-02 20:12:55,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977459523] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:55,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:12:55,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:12:55,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366640256] [2022-11-02 20:12:55,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:55,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:12:55,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:55,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:12:55,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:12:55,190 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 288 [2022-11-02 20:12:55,191 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 195 transitions, 516 flow. Second operand has 3 states, 3 states have (on average 257.0) internal successors, (771), 3 states have internal predecessors, (771), 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) [2022-11-02 20:12:55,191 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:12:55,191 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 288 [2022-11-02 20:12:55,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:12:55,279 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([704] L692-4-->L692-1: Formula: (= |v_#race~release_thr1~0_1| 0) InVars {} OutVars{#race~release_thr1~0=|v_#race~release_thr1~0_1|} AuxVars[] AssignedVars[#race~release_thr1~0][92], [Black: 284#true, 308#true, Black: 292#(= |thr1Thread1of2ForFork1_#t~nondet9#1| |#race~locked~0|), 302#true, Black: 298#(= 0 ~release_thr1~0), thr2Thread1of2ForFork0InUse, thr2Thread2of2ForFork0InUse, thr1Thread1of2ForFork1InUse, Black: 304#(= |#race~release_thr1~0| |thr1Thread1of2ForFork1_#t~nondet10#1|), 31#L721-4true, Black: 280#(= |thr1Thread1of2ForFork1_#t~nondet8#1| |#race~usecount~0|), 196#L692-1true, 163#L746-6true, 55#L692-2true]) [2022-11-02 20:12:55,280 INFO L383 tUnfolder$Statistics]: this new event has 61 ancestors and is cut-off event [2022-11-02 20:12:55,280 INFO L386 tUnfolder$Statistics]: existing Event has 58 ancestors and is cut-off event [2022-11-02 20:12:55,280 INFO L386 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-11-02 20:12:55,280 INFO L386 tUnfolder$Statistics]: existing Event has 58 ancestors and is cut-off event [2022-11-02 20:12:55,283 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([704] L692-4-->L692-1: Formula: (= |v_#race~release_thr1~0_1| 0) InVars {} OutVars{#race~release_thr1~0=|v_#race~release_thr1~0_1|} AuxVars[] AssignedVars[#race~release_thr1~0][92], [Black: 284#true, 308#true, Black: 292#(= |thr1Thread1of2ForFork1_#t~nondet9#1| |#race~locked~0|), 302#true, Black: 296#true, thr2Thread1of2ForFork0InUse, thr2Thread2of2ForFork0InUse, thr1Thread1of2ForFork1InUse, Black: 304#(= |#race~release_thr1~0| |thr1Thread1of2ForFork1_#t~nondet10#1|), 31#L721-4true, Black: 280#(= |thr1Thread1of2ForFork1_#t~nondet8#1| |#race~usecount~0|), 196#L692-1true, 163#L746-6true, 55#L692-2true]) [2022-11-02 20:12:55,283 INFO L383 tUnfolder$Statistics]: this new event has 61 ancestors and is cut-off event [2022-11-02 20:12:55,283 INFO L386 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-11-02 20:12:55,283 INFO L386 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-11-02 20:12:55,284 INFO L386 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-11-02 20:12:55,286 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([668] L692-4-->L692-1: Formula: (= |v_#race~release_thr1~0_1| 0) InVars {} OutVars{#race~release_thr1~0=|v_#race~release_thr1~0_1|} AuxVars[] AssignedVars[#race~release_thr1~0][87], [Black: 284#true, 308#true, Black: 292#(= |thr1Thread1of2ForFork1_#t~nondet9#1| |#race~locked~0|), 302#true, 152#L692-1true, Black: 296#true, thr2Thread1of2ForFork0InUse, thr2Thread2of2ForFork0InUse, thr1Thread1of2ForFork1InUse, Black: 304#(= |#race~release_thr1~0| |thr1Thread1of2ForFork1_#t~nondet10#1|), 31#L721-4true, Black: 280#(= |thr1Thread1of2ForFork1_#t~nondet8#1| |#race~usecount~0|), 121#L692-2true, 163#L746-6true]) [2022-11-02 20:12:55,287 INFO L383 tUnfolder$Statistics]: this new event has 61 ancestors and is cut-off event [2022-11-02 20:12:55,287 INFO L386 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-11-02 20:12:55,287 INFO L386 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-11-02 20:12:55,287 INFO L386 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-11-02 20:12:55,298 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([668] L692-4-->L692-1: Formula: (= |v_#race~release_thr1~0_1| 0) InVars {} OutVars{#race~release_thr1~0=|v_#race~release_thr1~0_1|} AuxVars[] AssignedVars[#race~release_thr1~0][87], [Black: 284#true, 308#true, Black: 292#(= |thr1Thread1of2ForFork1_#t~nondet9#1| |#race~locked~0|), 302#true, 152#L692-1true, Black: 298#(= 0 ~release_thr1~0), thr2Thread1of2ForFork0InUse, thr2Thread2of2ForFork0InUse, thr1Thread1of2ForFork1InUse, Black: 304#(= |#race~release_thr1~0| |thr1Thread1of2ForFork1_#t~nondet10#1|), 31#L721-4true, Black: 280#(= |thr1Thread1of2ForFork1_#t~nondet8#1| |#race~usecount~0|), 163#L746-6true, 121#L692-2true]) [2022-11-02 20:12:55,299 INFO L383 tUnfolder$Statistics]: this new event has 61 ancestors and is cut-off event [2022-11-02 20:12:55,299 INFO L386 tUnfolder$Statistics]: existing Event has 58 ancestors and is cut-off event [2022-11-02 20:12:55,299 INFO L386 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-11-02 20:12:55,299 INFO L386 tUnfolder$Statistics]: existing Event has 58 ancestors and is cut-off event [2022-11-02 20:12:55,322 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([704] L692-4-->L692-1: Formula: (= |v_#race~release_thr1~0_1| 0) InVars {} OutVars{#race~release_thr1~0=|v_#race~release_thr1~0_1|} AuxVars[] AssignedVars[#race~release_thr1~0][47], [Black: 284#true, 308#true, Black: 292#(= |thr1Thread1of2ForFork1_#t~nondet9#1| |#race~locked~0|), 302#true, Black: 296#true, thr2Thread1of2ForFork0InUse, thr2Thread2of2ForFork0InUse, thr1Thread1of2ForFork1InUse, Black: 304#(= |#race~release_thr1~0| |thr1Thread1of2ForFork1_#t~nondet10#1|), 123#L722-2true, Black: 280#(= |thr1Thread1of2ForFork1_#t~nondet8#1| |#race~usecount~0|), 196#L692-1true, 163#L746-6true, 55#L692-2true]) [2022-11-02 20:12:55,322 INFO L383 tUnfolder$Statistics]: this new event has 62 ancestors and is cut-off event [2022-11-02 20:12:55,322 INFO L386 tUnfolder$Statistics]: existing Event has 62 ancestors and is cut-off event [2022-11-02 20:12:55,323 INFO L386 tUnfolder$Statistics]: existing Event has 62 ancestors and is cut-off event [2022-11-02 20:12:55,323 INFO L386 tUnfolder$Statistics]: existing Event has 62 ancestors and is cut-off event [2022-11-02 20:12:55,331 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([704] L692-4-->L692-1: Formula: (= |v_#race~release_thr1~0_1| 0) InVars {} OutVars{#race~release_thr1~0=|v_#race~release_thr1~0_1|} AuxVars[] AssignedVars[#race~release_thr1~0][47], [Black: 284#true, 308#true, Black: 292#(= |thr1Thread1of2ForFork1_#t~nondet9#1| |#race~locked~0|), 302#true, Black: 298#(= 0 ~release_thr1~0), thr2Thread1of2ForFork0InUse, thr2Thread2of2ForFork0InUse, thr1Thread1of2ForFork1InUse, Black: 304#(= |#race~release_thr1~0| |thr1Thread1of2ForFork1_#t~nondet10#1|), 123#L722-2true, Black: 280#(= |thr1Thread1of2ForFork1_#t~nondet8#1| |#race~usecount~0|), 196#L692-1true, 163#L746-6true, 55#L692-2true]) [2022-11-02 20:12:55,331 INFO L383 tUnfolder$Statistics]: this new event has 62 ancestors and is cut-off event [2022-11-02 20:12:55,331 INFO L386 tUnfolder$Statistics]: existing Event has 62 ancestors and is cut-off event [2022-11-02 20:12:55,332 INFO L386 tUnfolder$Statistics]: existing Event has 59 ancestors and is cut-off event [2022-11-02 20:12:55,332 INFO L386 tUnfolder$Statistics]: existing Event has 59 ancestors and is cut-off event [2022-11-02 20:12:55,338 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([668] L692-4-->L692-1: Formula: (= |v_#race~release_thr1~0_1| 0) InVars {} OutVars{#race~release_thr1~0=|v_#race~release_thr1~0_1|} AuxVars[] AssignedVars[#race~release_thr1~0][57], [Black: 284#true, 308#true, Black: 292#(= |thr1Thread1of2ForFork1_#t~nondet9#1| |#race~locked~0|), 302#true, 152#L692-1true, Black: 296#true, thr2Thread1of2ForFork0InUse, thr2Thread2of2ForFork0InUse, thr1Thread1of2ForFork1InUse, Black: 304#(= |#race~release_thr1~0| |thr1Thread1of2ForFork1_#t~nondet10#1|), 123#L722-2true, Black: 280#(= |thr1Thread1of2ForFork1_#t~nondet8#1| |#race~usecount~0|), 121#L692-2true, 163#L746-6true]) [2022-11-02 20:12:55,338 INFO L383 tUnfolder$Statistics]: this new event has 62 ancestors and is cut-off event [2022-11-02 20:12:55,339 INFO L386 tUnfolder$Statistics]: existing Event has 62 ancestors and is cut-off event [2022-11-02 20:12:55,339 INFO L386 tUnfolder$Statistics]: existing Event has 62 ancestors and is cut-off event [2022-11-02 20:12:55,339 INFO L386 tUnfolder$Statistics]: existing Event has 62 ancestors and is cut-off event [2022-11-02 20:12:55,341 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([668] L692-4-->L692-1: Formula: (= |v_#race~release_thr1~0_1| 0) InVars {} OutVars{#race~release_thr1~0=|v_#race~release_thr1~0_1|} AuxVars[] AssignedVars[#race~release_thr1~0][57], [Black: 284#true, 308#true, Black: 292#(= |thr1Thread1of2ForFork1_#t~nondet9#1| |#race~locked~0|), 302#true, Black: 298#(= 0 ~release_thr1~0), 152#L692-1true, thr2Thread1of2ForFork0InUse, thr2Thread2of2ForFork0InUse, thr1Thread1of2ForFork1InUse, Black: 304#(= |#race~release_thr1~0| |thr1Thread1of2ForFork1_#t~nondet10#1|), 123#L722-2true, Black: 280#(= |thr1Thread1of2ForFork1_#t~nondet8#1| |#race~usecount~0|), 163#L746-6true, 121#L692-2true]) [2022-11-02 20:12:55,341 INFO L383 tUnfolder$Statistics]: this new event has 62 ancestors and is cut-off event [2022-11-02 20:12:55,341 INFO L386 tUnfolder$Statistics]: existing Event has 59 ancestors and is cut-off event [2022-11-02 20:12:55,341 INFO L386 tUnfolder$Statistics]: existing Event has 62 ancestors and is cut-off event [2022-11-02 20:12:55,341 INFO L386 tUnfolder$Statistics]: existing Event has 59 ancestors and is cut-off event [2022-11-02 20:12:55,355 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([668] L692-4-->L692-1: Formula: (= |v_#race~release_thr1~0_1| 0) InVars {} OutVars{#race~release_thr1~0=|v_#race~release_thr1~0_1|} AuxVars[] AssignedVars[#race~release_thr1~0][57], [Black: 284#true, 308#true, Black: 292#(= |thr1Thread1of2ForFork1_#t~nondet9#1| |#race~locked~0|), 302#true, 152#L692-1true, Black: 296#true, thr2Thread1of2ForFork0InUse, thr2Thread2of2ForFork0InUse, thr1Thread1of2ForFork1InUse, Black: 304#(= |#race~release_thr1~0| |thr1Thread1of2ForFork1_#t~nondet10#1|), 180#thr1Err2ASSERT_VIOLATIONDATA_RACEtrue, Black: 280#(= |thr1Thread1of2ForFork1_#t~nondet8#1| |#race~usecount~0|), 196#L692-1true, 163#L746-6true]) [2022-11-02 20:12:55,356 INFO L383 tUnfolder$Statistics]: this new event has 63 ancestors and is cut-off event [2022-11-02 20:12:55,356 INFO L386 tUnfolder$Statistics]: existing Event has 60 ancestors and is cut-off event [2022-11-02 20:12:55,356 INFO L386 tUnfolder$Statistics]: existing Event has 60 ancestors and is cut-off event [2022-11-02 20:12:55,356 INFO L386 tUnfolder$Statistics]: existing Event has 60 ancestors and is cut-off event [2022-11-02 20:12:55,376 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([704] L692-4-->L692-1: Formula: (= |v_#race~release_thr1~0_1| 0) InVars {} OutVars{#race~release_thr1~0=|v_#race~release_thr1~0_1|} AuxVars[] AssignedVars[#race~release_thr1~0][47], [Black: 284#true, 308#true, Black: 292#(= |thr1Thread1of2ForFork1_#t~nondet9#1| |#race~locked~0|), 302#true, 152#L692-1true, Black: 296#true, thr2Thread1of2ForFork0InUse, thr2Thread2of2ForFork0InUse, thr1Thread1of2ForFork1InUse, Black: 304#(= |#race~release_thr1~0| |thr1Thread1of2ForFork1_#t~nondet10#1|), 123#L722-2true, Black: 280#(= |thr1Thread1of2ForFork1_#t~nondet8#1| |#race~usecount~0|), 196#L692-1true, 163#L746-6true]) [2022-11-02 20:12:55,376 INFO L383 tUnfolder$Statistics]: this new event has 64 ancestors and is cut-off event [2022-11-02 20:12:55,376 INFO L386 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-11-02 20:12:55,377 INFO L386 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-11-02 20:12:55,377 INFO L386 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-11-02 20:12:55,377 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([704] L692-4-->L692-1: Formula: (= |v_#race~release_thr1~0_1| 0) InVars {} OutVars{#race~release_thr1~0=|v_#race~release_thr1~0_1|} AuxVars[] AssignedVars[#race~release_thr1~0][47], [Black: 284#true, 308#true, Black: 292#(= |thr1Thread1of2ForFork1_#t~nondet9#1| |#race~locked~0|), 302#true, Black: 296#true, thr2Thread1of2ForFork0InUse, thr2Thread2of2ForFork0InUse, thr1Thread1of2ForFork1InUse, Black: 304#(= |#race~release_thr1~0| |thr1Thread1of2ForFork1_#t~nondet10#1|), 123#L722-2true, Black: 280#(= |thr1Thread1of2ForFork1_#t~nondet8#1| |#race~usecount~0|), 196#L692-1true, 163#L746-6true, 55#L692-2true]) [2022-11-02 20:12:55,378 INFO L383 tUnfolder$Statistics]: this new event has 65 ancestors and is cut-off event [2022-11-02 20:12:55,378 INFO L386 tUnfolder$Statistics]: existing Event has 62 ancestors and is cut-off event [2022-11-02 20:12:55,378 INFO L386 tUnfolder$Statistics]: existing Event has 62 ancestors and is cut-off event [2022-11-02 20:12:55,378 INFO L386 tUnfolder$Statistics]: existing Event has 62 ancestors and is cut-off event [2022-11-02 20:12:55,378 INFO L386 tUnfolder$Statistics]: existing Event has 62 ancestors and is cut-off event [2022-11-02 20:12:55,379 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([668] L692-4-->L692-1: Formula: (= |v_#race~release_thr1~0_1| 0) InVars {} OutVars{#race~release_thr1~0=|v_#race~release_thr1~0_1|} AuxVars[] AssignedVars[#race~release_thr1~0][57], [Black: 284#true, 308#true, Black: 292#(= |thr1Thread1of2ForFork1_#t~nondet9#1| |#race~locked~0|), 302#true, 152#L692-1true, Black: 296#true, thr2Thread1of2ForFork0InUse, thr2Thread2of2ForFork0InUse, thr1Thread1of2ForFork1InUse, Black: 304#(= |#race~release_thr1~0| |thr1Thread1of2ForFork1_#t~nondet10#1|), 180#thr1Err2ASSERT_VIOLATIONDATA_RACEtrue, Black: 280#(= |thr1Thread1of2ForFork1_#t~nondet8#1| |#race~usecount~0|), 121#L692-2true, 163#L746-6true]) [2022-11-02 20:12:55,379 INFO L383 tUnfolder$Statistics]: this new event has 64 ancestors and is cut-off event [2022-11-02 20:12:55,380 INFO L386 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-11-02 20:12:55,380 INFO L386 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-11-02 20:12:55,380 INFO L386 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-11-02 20:12:56,960 INFO L130 PetriNetUnfolder]: 1669/13245 cut-off events. [2022-11-02 20:12:56,960 INFO L131 PetriNetUnfolder]: For 718/738 co-relation queries the response was YES. [2022-11-02 20:12:57,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16881 conditions, 13245 events. 1669/13245 cut-off events. For 718/738 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 166788 event pairs, 312 based on Foata normal form. 7/10573 useless extension candidates. Maximal degree in co-relation 16845. Up to 873 conditions per place. [2022-11-02 20:12:57,219 INFO L137 encePairwiseOnDemand]: 283/288 looper letters, 18 selfloop transitions, 4 changer transitions 0/205 dead transitions. [2022-11-02 20:12:57,219 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 205 transitions, 588 flow [2022-11-02 20:12:57,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:12:57,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:12:57,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 791 transitions. [2022-11-02 20:12:57,222 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9155092592592593 [2022-11-02 20:12:57,222 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 791 transitions. [2022-11-02 20:12:57,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 791 transitions. [2022-11-02 20:12:57,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:12:57,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 791 transitions. [2022-11-02 20:12:57,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 263.6666666666667) internal successors, (791), 3 states have internal predecessors, (791), 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) [2022-11-02 20:12:57,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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) [2022-11-02 20:12:57,227 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 288.0) internal successors, (1152), 4 states have internal predecessors, (1152), 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) [2022-11-02 20:12:57,227 INFO L175 Difference]: Start difference. First operand has 192 places, 195 transitions, 516 flow. Second operand 3 states and 791 transitions. [2022-11-02 20:12:57,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 205 transitions, 588 flow [2022-11-02 20:12:57,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 205 transitions, 572 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:12:57,233 INFO L231 Difference]: Finished difference. Result has 194 places, 199 transitions, 534 flow [2022-11-02 20:12:57,234 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=288, PETRI_DIFFERENCE_MINUEND_FLOW=500, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=534, PETRI_PLACES=194, PETRI_TRANSITIONS=199} [2022-11-02 20:12:57,234 INFO L287 CegarLoopForPetriNet]: 192 programPoint places, 2 predicate places. [2022-11-02 20:12:57,235 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 199 transitions, 534 flow [2022-11-02 20:12:57,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 257.0) internal successors, (771), 3 states have internal predecessors, (771), 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) [2022-11-02 20:12:57,235 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:57,236 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:12:57,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:12:57,236 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2022-11-02 20:12:57,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:57,236 INFO L85 PathProgramCache]: Analyzing trace with hash 2089856119, now seen corresponding path program 1 times [2022-11-02 20:12:57,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:57,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039087896] [2022-11-02 20:12:57,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:57,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:57,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:12:57,257 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-02 20:12:57,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-02 20:12:57,269 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-02 20:12:57,270 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-02 20:12:57,270 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 53 remaining) [2022-11-02 20:12:57,270 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (51 of 53 remaining) [2022-11-02 20:12:57,270 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (50 of 53 remaining) [2022-11-02 20:12:57,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (49 of 53 remaining) [2022-11-02 20:12:57,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (48 of 53 remaining) [2022-11-02 20:12:57,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (47 of 53 remaining) [2022-11-02 20:12:57,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (46 of 53 remaining) [2022-11-02 20:12:57,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (45 of 53 remaining) [2022-11-02 20:12:57,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (44 of 53 remaining) [2022-11-02 20:12:57,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (43 of 53 remaining) [2022-11-02 20:12:57,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (42 of 53 remaining) [2022-11-02 20:12:57,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (41 of 53 remaining) [2022-11-02 20:12:57,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (40 of 53 remaining) [2022-11-02 20:12:57,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (39 of 53 remaining) [2022-11-02 20:12:57,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (38 of 53 remaining) [2022-11-02 20:12:57,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (37 of 53 remaining) [2022-11-02 20:12:57,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (36 of 53 remaining) [2022-11-02 20:12:57,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (35 of 53 remaining) [2022-11-02 20:12:57,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 53 remaining) [2022-11-02 20:12:57,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (33 of 53 remaining) [2022-11-02 20:12:57,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (32 of 53 remaining) [2022-11-02 20:12:57,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (31 of 53 remaining) [2022-11-02 20:12:57,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (30 of 53 remaining) [2022-11-02 20:12:57,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (29 of 53 remaining) [2022-11-02 20:12:57,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (28 of 53 remaining) [2022-11-02 20:12:57,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (27 of 53 remaining) [2022-11-02 20:12:57,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (26 of 53 remaining) [2022-11-02 20:12:57,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (25 of 53 remaining) [2022-11-02 20:12:57,276 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (24 of 53 remaining) [2022-11-02 20:12:57,276 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (23 of 53 remaining) [2022-11-02 20:12:57,276 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (22 of 53 remaining) [2022-11-02 20:12:57,276 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (21 of 53 remaining) [2022-11-02 20:12:57,276 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (20 of 53 remaining) [2022-11-02 20:12:57,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (19 of 53 remaining) [2022-11-02 20:12:57,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (18 of 53 remaining) [2022-11-02 20:12:57,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 53 remaining) [2022-11-02 20:12:57,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (16 of 53 remaining) [2022-11-02 20:12:57,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (15 of 53 remaining) [2022-11-02 20:12:57,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 53 remaining) [2022-11-02 20:12:57,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (13 of 53 remaining) [2022-11-02 20:12:57,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (12 of 53 remaining) [2022-11-02 20:12:57,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (11 of 53 remaining) [2022-11-02 20:12:57,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (10 of 53 remaining) [2022-11-02 20:12:57,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (9 of 53 remaining) [2022-11-02 20:12:57,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (8 of 53 remaining) [2022-11-02 20:12:57,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (7 of 53 remaining) [2022-11-02 20:12:57,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (6 of 53 remaining) [2022-11-02 20:12:57,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 53 remaining) [2022-11-02 20:12:57,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (4 of 53 remaining) [2022-11-02 20:12:57,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (3 of 53 remaining) [2022-11-02 20:12:57,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (2 of 53 remaining) [2022-11-02 20:12:57,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (1 of 53 remaining) [2022-11-02 20:12:57,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (0 of 53 remaining) [2022-11-02 20:12:57,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 20:12:57,281 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:12:57,282 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-02 20:12:57,282 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-02 20:12:57,324 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-02 20:12:57,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 393 places, 413 transitions, 868 flow [2022-11-02 20:12:57,363 INFO L130 PetriNetUnfolder]: 21/273 cut-off events. [2022-11-02 20:12:57,363 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-02 20:12:57,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 273 events. 21/273 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 972 event pairs, 0 based on Foata normal form. 0/219 useless extension candidates. Maximal degree in co-relation 287. Up to 8 conditions per place. [2022-11-02 20:12:57,368 INFO L82 GeneralOperation]: Start removeDead. Operand has 393 places, 413 transitions, 868 flow [2022-11-02 20:12:57,372 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 228 places, 236 transitions, 496 flow [2022-11-02 20:12:57,373 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:12:57,374 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;@132830f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:12:57,374 INFO L358 AbstractCegarLoop]: Starting to check reachability of 70 error locations. [2022-11-02 20:12:57,376 INFO L130 PetriNetUnfolder]: 1/39 cut-off events. [2022-11-02 20:12:57,376 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:12:57,377 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:12:57,377 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:12:57,377 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2022-11-02 20:12:57,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:12:57,377 INFO L85 PathProgramCache]: Analyzing trace with hash -939338228, now seen corresponding path program 1 times [2022-11-02 20:12:57,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:12:57,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677671488] [2022-11-02 20:12:57,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:12:57,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:12:57,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:12:57,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:12:57,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:12:57,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677671488] [2022-11-02 20:12:57,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677671488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:12:57,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:12:57,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:12:57,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517178652] [2022-11-02 20:12:57,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:12:57,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:12:57,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:12:57,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:12:57,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:12:57,402 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 310 out of 413 [2022-11-02 20:12:57,404 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 236 transitions, 496 flow. Second operand has 3 states, 3 states have (on average 311.3333333333333) internal successors, (934), 3 states have internal predecessors, (934), 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) [2022-11-02 20:12:57,404 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:12:57,404 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 310 of 413 [2022-11-02 20:12:57,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:13:05,199 INFO L130 PetriNetUnfolder]: 25188/65631 cut-off events. [2022-11-02 20:13:05,199 INFO L131 PetriNetUnfolder]: For 7242/7242 co-relation queries the response was YES. [2022-11-02 20:13:05,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103867 conditions, 65631 events. 25188/65631 cut-off events. For 7242/7242 co-relation queries the response was YES. Maximal size of possible extension queue 1720. Compared 826930 event pairs, 20277 based on Foata normal form. 14241/63634 useless extension candidates. Maximal degree in co-relation 103836. Up to 30610 conditions per place. [2022-11-02 20:13:05,930 INFO L137 encePairwiseOnDemand]: 393/413 looper letters, 56 selfloop transitions, 9 changer transitions 0/243 dead transitions. [2022-11-02 20:13:05,930 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 243 transitions, 655 flow [2022-11-02 20:13:05,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:13:05,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:13:05,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1011 transitions. [2022-11-02 20:13:05,933 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8159806295399515 [2022-11-02 20:13:05,933 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1011 transitions. [2022-11-02 20:13:05,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1011 transitions. [2022-11-02 20:13:05,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:13:05,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1011 transitions. [2022-11-02 20:13:05,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 337.0) internal successors, (1011), 3 states have internal predecessors, (1011), 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) [2022-11-02 20:13:05,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 413.0) internal successors, (1652), 4 states have internal predecessors, (1652), 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) [2022-11-02 20:13:05,940 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 413.0) internal successors, (1652), 4 states have internal predecessors, (1652), 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) [2022-11-02 20:13:05,940 INFO L175 Difference]: Start difference. First operand has 228 places, 236 transitions, 496 flow. Second operand 3 states and 1011 transitions. [2022-11-02 20:13:05,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 243 transitions, 655 flow [2022-11-02 20:13:05,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 243 transitions, 646 flow, removed 4 selfloop flow, removed 1 redundant places. [2022-11-02 20:13:05,947 INFO L231 Difference]: Finished difference. Result has 224 places, 228 transitions, 527 flow [2022-11-02 20:13:05,948 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=413, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=527, PETRI_PLACES=224, PETRI_TRANSITIONS=228} [2022-11-02 20:13:05,948 INFO L287 CegarLoopForPetriNet]: 228 programPoint places, -4 predicate places. [2022-11-02 20:13:05,948 INFO L495 AbstractCegarLoop]: Abstraction has has 224 places, 228 transitions, 527 flow [2022-11-02 20:13:05,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 311.3333333333333) internal successors, (934), 3 states have internal predecessors, (934), 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) [2022-11-02 20:13:05,949 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:13:05,949 INFO L208 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] [2022-11-02 20:13:05,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 20:13:05,950 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2022-11-02 20:13:05,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:13:05,950 INFO L85 PathProgramCache]: Analyzing trace with hash -30423804, now seen corresponding path program 1 times [2022-11-02 20:13:05,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:13:05,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289236119] [2022-11-02 20:13:05,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:13:05,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:13:05,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:13:05,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:13:05,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:13:05,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289236119] [2022-11-02 20:13:05,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289236119] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:13:05,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:13:05,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:13:05,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902870862] [2022-11-02 20:13:05,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:13:05,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:13:05,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:13:05,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:13:05,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:13:05,991 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 366 out of 413 [2022-11-02 20:13:05,992 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 228 transitions, 527 flow. Second operand has 3 states, 3 states have (on average 367.3333333333333) internal successors, (1102), 3 states have internal predecessors, (1102), 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) [2022-11-02 20:13:05,993 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:13:05,993 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 366 of 413 [2022-11-02 20:13:05,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:13:08,223 INFO L130 PetriNetUnfolder]: 3777/21865 cut-off events. [2022-11-02 20:13:08,224 INFO L131 PetriNetUnfolder]: For 831/831 co-relation queries the response was YES. [2022-11-02 20:13:08,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28081 conditions, 21865 events. 3777/21865 cut-off events. For 831/831 co-relation queries the response was YES. Maximal size of possible extension queue 675. Compared 306712 event pairs, 1030 based on Foata normal form. 0/17362 useless extension candidates. Maximal degree in co-relation 28049. Up to 2065 conditions per place. [2022-11-02 20:13:08,519 INFO L137 encePairwiseOnDemand]: 403/413 looper letters, 20 selfloop transitions, 7 changer transitions 0/239 dead transitions. [2022-11-02 20:13:08,519 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 239 transitions, 613 flow [2022-11-02 20:13:08,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:13:08,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:13:08,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1128 transitions. [2022-11-02 20:13:08,523 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.910411622276029 [2022-11-02 20:13:08,523 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1128 transitions. [2022-11-02 20:13:08,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1128 transitions. [2022-11-02 20:13:08,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:13:08,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1128 transitions. [2022-11-02 20:13:08,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 376.0) internal successors, (1128), 3 states have internal predecessors, (1128), 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) [2022-11-02 20:13:08,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 413.0) internal successors, (1652), 4 states have internal predecessors, (1652), 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) [2022-11-02 20:13:08,531 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 413.0) internal successors, (1652), 4 states have internal predecessors, (1652), 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) [2022-11-02 20:13:08,531 INFO L175 Difference]: Start difference. First operand has 224 places, 228 transitions, 527 flow. Second operand 3 states and 1128 transitions. [2022-11-02 20:13:08,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 239 transitions, 613 flow [2022-11-02 20:13:08,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 239 transitions, 595 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:13:08,544 INFO L231 Difference]: Finished difference. Result has 226 places, 235 transitions, 571 flow [2022-11-02 20:13:08,545 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=413, PETRI_DIFFERENCE_MINUEND_FLOW=509, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=571, PETRI_PLACES=226, PETRI_TRANSITIONS=235} [2022-11-02 20:13:08,546 INFO L287 CegarLoopForPetriNet]: 228 programPoint places, -2 predicate places. [2022-11-02 20:13:08,546 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 235 transitions, 571 flow [2022-11-02 20:13:08,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 367.3333333333333) internal successors, (1102), 3 states have internal predecessors, (1102), 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) [2022-11-02 20:13:08,547 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:13:08,547 INFO L208 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] [2022-11-02 20:13:08,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-02 20:13:08,547 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 66 more)] === [2022-11-02 20:13:08,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:13:08,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1970162391, now seen corresponding path program 1 times [2022-11-02 20:13:08,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:13:08,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750642424] [2022-11-02 20:13:08,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:13:08,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:13:08,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:13:08,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:13:08,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:13:08,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750642424] [2022-11-02 20:13:08,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750642424] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:13:08,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:13:08,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:13:08,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421270437] [2022-11-02 20:13:08,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:13:08,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:13:08,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:13:08,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:13:08,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:13:08,579 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 413 [2022-11-02 20:13:08,580 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 235 transitions, 571 flow. Second operand has 3 states, 3 states have (on average 338.3333333333333) internal successors, (1015), 3 states have internal predecessors, (1015), 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) [2022-11-02 20:13:08,580 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:13:08,580 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 413 [2022-11-02 20:13:08,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand