./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5247fa60-dc29-4946-bf03-9d6615c2109f/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5247fa60-dc29-4946-bf03-9d6615c2109f/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5247fa60-dc29-4946-bf03-9d6615c2109f/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5247fa60-dc29-4946-bf03-9d6615c2109f/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5247fa60-dc29-4946-bf03-9d6615c2109f/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5247fa60-dc29-4946-bf03-9d6615c2109f/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 18:37:44,629 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:37:44,631 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:37:44,672 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:37:44,672 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:37:44,676 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:37:44,678 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:37:44,682 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:37:44,684 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:37:44,690 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:37:44,691 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:37:44,693 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:37:44,693 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:37:44,696 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:37:44,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:37:44,699 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:37:44,701 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:37:44,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:37:44,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:37:44,709 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:37:44,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:37:44,712 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:37:44,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:37:44,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:37:44,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:37:44,728 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:37:44,729 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:37:44,731 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:37:44,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:37:44,733 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:37:44,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:37:44,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:37:44,737 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:37:44,738 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:37:44,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:37:44,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:37:44,741 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:37:44,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:37:44,742 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:37:44,743 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:37:44,744 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:37:44,745 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5247fa60-dc29-4946-bf03-9d6615c2109f/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 18:37:44,782 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:37:44,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:37:44,783 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:37:44,783 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:37:44,784 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:37:44,784 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:37:44,785 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:37:44,785 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:37:44,785 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:37:44,786 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:37:44,787 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:37:44,787 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:37:44,787 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:37:44,788 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:37:44,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:37:44,788 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:37:44,788 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:37:44,789 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:37:44,789 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 18:37:44,789 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:37:44,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:37:44,790 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:37:44,790 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:37:44,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:37:44,791 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:37:44,791 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:37:44,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:37:44,793 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:37:44,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:37:44,793 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:37:44,793 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:37:44,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:37:44,794 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:37:44,794 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:37:44,795 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:37:44,795 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_5247fa60-dc29-4946-bf03-9d6615c2109f/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5247fa60-dc29-4946-bf03-9d6615c2109f/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 [2022-11-18 18:37:45,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:37:45,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:37:45,169 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:37:45,171 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:37:45,171 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:37:45,173 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5247fa60-dc29-4946-bf03-9d6615c2109f/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2022-11-18 18:37:45,251 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5247fa60-dc29-4946-bf03-9d6615c2109f/bin/uautomizer-TMbwUNV5ro/data/c59ea8a8e/51a468e2e0c1414dafc7b2e773a8dc81/FLAG52411d67c [2022-11-18 18:37:45,898 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:37:45,899 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5247fa60-dc29-4946-bf03-9d6615c2109f/sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2022-11-18 18:37:45,921 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5247fa60-dc29-4946-bf03-9d6615c2109f/bin/uautomizer-TMbwUNV5ro/data/c59ea8a8e/51a468e2e0c1414dafc7b2e773a8dc81/FLAG52411d67c [2022-11-18 18:37:46,089 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5247fa60-dc29-4946-bf03-9d6615c2109f/bin/uautomizer-TMbwUNV5ro/data/c59ea8a8e/51a468e2e0c1414dafc7b2e773a8dc81 [2022-11-18 18:37:46,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:37:46,098 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:37:46,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:37:46,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:37:46,106 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:37:46,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:37:46" (1/1) ... [2022-11-18 18:37:46,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45a428f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:37:46, skipping insertion in model container [2022-11-18 18:37:46,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:37:46" (1/1) ... [2022-11-18 18:37:46,117 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:37:46,189 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:37:46,418 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-18 18:37:47,193 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5247fa60-dc29-4946-bf03-9d6615c2109f/sv-benchmarks/c/ldv-races/race-2_5-container_of.i[75002,75015] [2022-11-18 18:37:47,244 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:37:47,253 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:37:47,265 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-18 18:37:47,296 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5247fa60-dc29-4946-bf03-9d6615c2109f/sv-benchmarks/c/ldv-races/race-2_5-container_of.i[75002,75015] [2022-11-18 18:37:47,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:37:47,401 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:37:47,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:37:47 WrapperNode [2022-11-18 18:37:47,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:37:47,403 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:37:47,403 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:37:47,403 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:37:47,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:37:47" (1/1) ... [2022-11-18 18:37:47,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:37:47" (1/1) ... [2022-11-18 18:37:47,500 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 225 [2022-11-18 18:37:47,500 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:37:47,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:37:47,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:37:47,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:37:47,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:37:47" (1/1) ... [2022-11-18 18:37:47,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:37:47" (1/1) ... [2022-11-18 18:37:47,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:37:47" (1/1) ... [2022-11-18 18:37:47,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:37:47" (1/1) ... [2022-11-18 18:37:47,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:37:47" (1/1) ... [2022-11-18 18:37:47,542 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:37:47" (1/1) ... [2022-11-18 18:37:47,546 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:37:47" (1/1) ... [2022-11-18 18:37:47,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:37:47" (1/1) ... [2022-11-18 18:37:47,555 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:37:47,556 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:37:47,556 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:37:47,556 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:37:47,557 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:37:47" (1/1) ... [2022-11-18 18:37:47,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:37:47,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5247fa60-dc29-4946-bf03-9d6615c2109f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:37:47,616 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5247fa60-dc29-4946-bf03-9d6615c2109f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:37:47,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5247fa60-dc29-4946-bf03-9d6615c2109f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:37:47,661 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 18:37:47,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:37:47,666 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 18:37:47,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 18:37:47,666 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 18:37:47,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:37:47,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 18:37:47,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:37:47,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:37:47,667 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-18 18:37:47,667 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-18 18:37:47,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:37:47,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:37:47,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:37:47,669 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 18:37:48,118 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:37:48,120 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:37:48,616 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:37:48,777 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:37:48,777 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 18:37:48,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:37:48 BoogieIcfgContainer [2022-11-18 18:37:48,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:37:48,782 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:37:48,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:37:48,786 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:37:48,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:37:46" (1/3) ... [2022-11-18 18:37:48,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3801044c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:37:48, skipping insertion in model container [2022-11-18 18:37:48,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:37:47" (2/3) ... [2022-11-18 18:37:48,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3801044c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:37:48, skipping insertion in model container [2022-11-18 18:37:48,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:37:48" (3/3) ... [2022-11-18 18:37:48,789 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_5-container_of.i [2022-11-18 18:37:48,800 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 18:37:48,810 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:37:48,811 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2022-11-18 18:37:48,811 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 18:37:48,907 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 18:37:48,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 247 places, 247 transitions, 510 flow [2022-11-18 18:37:49,120 INFO L130 PetriNetUnfolder]: 8/324 cut-off events. [2022-11-18 18:37:49,122 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 18:37:49,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 333 conditions, 324 events. 8/324 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 625 event pairs, 0 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 167. Up to 4 conditions per place. [2022-11-18 18:37:49,133 INFO L82 GeneralOperation]: Start removeDead. Operand has 247 places, 247 transitions, 510 flow [2022-11-18 18:37:49,147 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 245 places, 244 transitions, 500 flow [2022-11-18 18:37:49,180 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:37:49,188 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;@53af7c41, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:37:49,188 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-18 18:37:49,200 INFO L130 PetriNetUnfolder]: 0/42 cut-off events. [2022-11-18 18:37:49,201 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 18:37:49,201 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:37:49,202 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:37:49,203 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:37:49,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:37:49,209 INFO L85 PathProgramCache]: Analyzing trace with hash 2121246416, now seen corresponding path program 1 times [2022-11-18 18:37:49,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:37:49,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656647966] [2022-11-18 18:37:49,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:37:49,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:37:49,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:50,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:37:50,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:37:50,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656647966] [2022-11-18 18:37:50,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656647966] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:37:50,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:37:50,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:37:50,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485763027] [2022-11-18 18:37:50,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:37:50,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:37:50,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:37:50,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:37:50,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:37:50,399 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 247 [2022-11-18 18:37:50,407 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 244 transitions, 500 flow. Second operand has 6 states, 6 states have (on average 148.83333333333334) internal successors, (893), 6 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:37:50,407 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:37:50,407 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 247 [2022-11-18 18:37:50,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:37:51,431 INFO L130 PetriNetUnfolder]: 766/2163 cut-off events. [2022-11-18 18:37:51,431 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-18 18:37:51,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3553 conditions, 2163 events. 766/2163 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 14262 event pairs, 765 based on Foata normal form. 36/2036 useless extension candidates. Maximal degree in co-relation 3134. Up to 1367 conditions per place. [2022-11-18 18:37:51,452 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 75 selfloop transitions, 5 changer transitions 17/225 dead transitions. [2022-11-18 18:37:51,452 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 225 transitions, 624 flow [2022-11-18 18:37:51,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:37:51,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:37:51,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 978 transitions. [2022-11-18 18:37:51,477 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.659919028340081 [2022-11-18 18:37:51,477 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 978 transitions. [2022-11-18 18:37:51,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 978 transitions. [2022-11-18 18:37:51,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:37:51,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 978 transitions. [2022-11-18 18:37:51,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 163.0) internal successors, (978), 6 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:37:51,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:37:51,503 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:37:51,504 INFO L175 Difference]: Start difference. First operand has 245 places, 244 transitions, 500 flow. Second operand 6 states and 978 transitions. [2022-11-18 18:37:51,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 225 transitions, 624 flow [2022-11-18 18:37:51,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 225 transitions, 616 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 18:37:51,522 INFO L231 Difference]: Finished difference. Result has 231 places, 208 transitions, 430 flow [2022-11-18 18:37:51,524 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=430, PETRI_PLACES=231, PETRI_TRANSITIONS=208} [2022-11-18 18:37:51,528 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -14 predicate places. [2022-11-18 18:37:51,529 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 208 transitions, 430 flow [2022-11-18 18:37:51,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.83333333333334) internal successors, (893), 6 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:37:51,530 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:37:51,531 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:37:51,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:37:51,531 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:37:51,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:37:51,532 INFO L85 PathProgramCache]: Analyzing trace with hash -140736374, now seen corresponding path program 1 times [2022-11-18 18:37:51,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:37:51,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079732042] [2022-11-18 18:37:51,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:37:51,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:37:51,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:52,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:37:52,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:37:52,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079732042] [2022-11-18 18:37:52,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079732042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:37:52,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:37:52,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:37:52,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412199115] [2022-11-18 18:37:52,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:37:52,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:37:52,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:37:52,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:37:52,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:37:52,196 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 247 [2022-11-18 18:37:52,197 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 208 transitions, 430 flow. Second operand has 6 states, 6 states have (on average 149.83333333333334) internal successors, (899), 6 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:37:52,198 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:37:52,198 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 247 [2022-11-18 18:37:52,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:37:52,854 INFO L130 PetriNetUnfolder]: 742/1881 cut-off events. [2022-11-18 18:37:52,854 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 18:37:52,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3223 conditions, 1881 events. 742/1881 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 11902 event pairs, 741 based on Foata normal form. 0/1755 useless extension candidates. Maximal degree in co-relation 3161. Up to 1325 conditions per place. [2022-11-18 18:37:52,865 INFO L137 encePairwiseOnDemand]: 241/247 looper letters, 74 selfloop transitions, 5 changer transitions 0/207 dead transitions. [2022-11-18 18:37:52,865 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 207 transitions, 586 flow [2022-11-18 18:37:52,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:37:52,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:37:52,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 962 transitions. [2022-11-18 18:37:52,868 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6491228070175439 [2022-11-18 18:37:52,868 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 962 transitions. [2022-11-18 18:37:52,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 962 transitions. [2022-11-18 18:37:52,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:37:52,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 962 transitions. [2022-11-18 18:37:52,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 160.33333333333334) internal successors, (962), 6 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:37:52,874 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:37:52,875 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:37:52,875 INFO L175 Difference]: Start difference. First operand has 231 places, 208 transitions, 430 flow. Second operand 6 states and 962 transitions. [2022-11-18 18:37:52,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 207 transitions, 586 flow [2022-11-18 18:37:52,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 207 transitions, 576 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 18:37:52,880 INFO L231 Difference]: Finished difference. Result has 213 places, 207 transitions, 428 flow [2022-11-18 18:37:52,881 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=428, PETRI_PLACES=213, PETRI_TRANSITIONS=207} [2022-11-18 18:37:52,882 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -32 predicate places. [2022-11-18 18:37:52,882 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 207 transitions, 428 flow [2022-11-18 18:37:52,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 149.83333333333334) internal successors, (899), 6 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:37:52,883 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:37:52,883 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:37:52,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:37:52,883 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:37:52,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:37:52,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1153358172, now seen corresponding path program 1 times [2022-11-18 18:37:52,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:37:52,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377880013] [2022-11-18 18:37:52,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:37:52,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:37:52,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:53,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:37:53,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:37:53,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377880013] [2022-11-18 18:37:53,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377880013] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:37:53,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:37:53,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:37:53,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893814176] [2022-11-18 18:37:53,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:37:53,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:37:53,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:37:53,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:37:53,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:37:53,489 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 247 [2022-11-18 18:37:53,490 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 207 transitions, 428 flow. Second operand has 6 states, 6 states have (on average 144.33333333333334) internal successors, (866), 6 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:37:53,490 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:37:53,490 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 247 [2022-11-18 18:37:53,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:37:54,475 INFO L130 PetriNetUnfolder]: 1018/2384 cut-off events. [2022-11-18 18:37:54,475 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 18:37:54,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4191 conditions, 2384 events. 1018/2384 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 15704 event pairs, 819 based on Foata normal form. 0/2264 useless extension candidates. Maximal degree in co-relation 4118. Up to 1695 conditions per place. [2022-11-18 18:37:54,490 INFO L137 encePairwiseOnDemand]: 234/247 looper letters, 82 selfloop transitions, 30 changer transitions 0/236 dead transitions. [2022-11-18 18:37:54,490 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 236 transitions, 710 flow [2022-11-18 18:37:54,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:37:54,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:37:54,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 959 transitions. [2022-11-18 18:37:54,493 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6470985155195681 [2022-11-18 18:37:54,493 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 959 transitions. [2022-11-18 18:37:54,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 959 transitions. [2022-11-18 18:37:54,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:37:54,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 959 transitions. [2022-11-18 18:37:54,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 159.83333333333334) internal successors, (959), 6 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:37:54,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:37:54,500 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:37:54,501 INFO L175 Difference]: Start difference. First operand has 213 places, 207 transitions, 428 flow. Second operand 6 states and 959 transitions. [2022-11-18 18:37:54,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 236 transitions, 710 flow [2022-11-18 18:37:54,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 236 transitions, 700 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 18:37:54,506 INFO L231 Difference]: Finished difference. Result has 218 places, 236 transitions, 620 flow [2022-11-18 18:37:54,507 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=620, PETRI_PLACES=218, PETRI_TRANSITIONS=236} [2022-11-18 18:37:54,509 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -27 predicate places. [2022-11-18 18:37:54,509 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 236 transitions, 620 flow [2022-11-18 18:37:54,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 144.33333333333334) internal successors, (866), 6 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:37:54,510 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:37:54,510 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:37:54,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:37:54,511 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:37:54,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:37:54,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1732561676, now seen corresponding path program 1 times [2022-11-18 18:37:54,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:37:54,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031579273] [2022-11-18 18:37:54,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:37:54,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:37:54,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:54,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:37:54,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:37:54,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031579273] [2022-11-18 18:37:54,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031579273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:37:54,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:37:54,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:37:54,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838689715] [2022-11-18 18:37:54,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:37:54,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:37:54,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:37:54,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:37:54,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:37:54,677 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 247 [2022-11-18 18:37:54,679 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 236 transitions, 620 flow. Second operand has 5 states, 5 states have (on average 205.8) internal successors, (1029), 5 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:37:54,680 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:37:54,680 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 247 [2022-11-18 18:37:54,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:37:55,090 INFO L130 PetriNetUnfolder]: 449/1623 cut-off events. [2022-11-18 18:37:55,091 INFO L131 PetriNetUnfolder]: For 460/520 co-relation queries the response was YES. [2022-11-18 18:37:55,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3133 conditions, 1623 events. 449/1623 cut-off events. For 460/520 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 10302 event pairs, 264 based on Foata normal form. 0/1533 useless extension candidates. Maximal degree in co-relation 2139. Up to 606 conditions per place. [2022-11-18 18:37:55,103 INFO L137 encePairwiseOnDemand]: 242/247 looper letters, 50 selfloop transitions, 4 changer transitions 0/241 dead transitions. [2022-11-18 18:37:55,103 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 241 transitions, 738 flow [2022-11-18 18:37:55,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:37:55,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:37:55,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1255 transitions. [2022-11-18 18:37:55,107 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8468286099865048 [2022-11-18 18:37:55,111 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1255 transitions. [2022-11-18 18:37:55,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1255 transitions. [2022-11-18 18:37:55,112 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:37:55,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1255 transitions. [2022-11-18 18:37:55,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 209.16666666666666) internal successors, (1255), 6 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:37:55,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:37:55,118 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:37:55,118 INFO L175 Difference]: Start difference. First operand has 218 places, 236 transitions, 620 flow. Second operand 6 states and 1255 transitions. [2022-11-18 18:37:55,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 241 transitions, 738 flow [2022-11-18 18:37:55,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 241 transitions, 738 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 18:37:55,132 INFO L231 Difference]: Finished difference. Result has 227 places, 239 transitions, 649 flow [2022-11-18 18:37:55,133 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=649, PETRI_PLACES=227, PETRI_TRANSITIONS=239} [2022-11-18 18:37:55,134 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -18 predicate places. [2022-11-18 18:37:55,135 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 239 transitions, 649 flow [2022-11-18 18:37:55,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 205.8) internal successors, (1029), 5 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:37:55,135 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:37:55,136 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:37:55,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:37:55,136 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:37:55,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:37:55,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1253499727, now seen corresponding path program 1 times [2022-11-18 18:37:55,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:37:55,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275775786] [2022-11-18 18:37:55,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:37:55,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:37:55,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:55,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:37:55,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:37:55,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275775786] [2022-11-18 18:37:55,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275775786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:37:55,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:37:55,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:37:55,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206663589] [2022-11-18 18:37:55,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:37:55,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:37:55,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:37:55,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:37:55,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:37:55,840 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 247 [2022-11-18 18:37:55,841 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 239 transitions, 649 flow. Second operand has 6 states, 6 states have (on average 145.33333333333334) internal successors, (872), 6 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:37:55,841 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:37:55,841 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 247 [2022-11-18 18:37:55,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:37:56,916 INFO L130 PetriNetUnfolder]: 1147/2607 cut-off events. [2022-11-18 18:37:56,916 INFO L131 PetriNetUnfolder]: For 845/851 co-relation queries the response was YES. [2022-11-18 18:37:56,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6228 conditions, 2607 events. 1147/2607 cut-off events. For 845/851 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 16732 event pairs, 753 based on Foata normal form. 0/2510 useless extension candidates. Maximal degree in co-relation 6125. Up to 1900 conditions per place. [2022-11-18 18:37:56,937 INFO L137 encePairwiseOnDemand]: 234/247 looper letters, 110 selfloop transitions, 30 changer transitions 0/268 dead transitions. [2022-11-18 18:37:56,938 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 268 transitions, 1035 flow [2022-11-18 18:37:56,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:37:56,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:37:56,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 959 transitions. [2022-11-18 18:37:56,941 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6470985155195681 [2022-11-18 18:37:56,941 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 959 transitions. [2022-11-18 18:37:56,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 959 transitions. [2022-11-18 18:37:56,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:37:56,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 959 transitions. [2022-11-18 18:37:56,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 159.83333333333334) internal successors, (959), 6 states have internal predecessors, (959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:37:56,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:37:56,947 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:37:56,947 INFO L175 Difference]: Start difference. First operand has 227 places, 239 transitions, 649 flow. Second operand 6 states and 959 transitions. [2022-11-18 18:37:56,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 268 transitions, 1035 flow [2022-11-18 18:37:56,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 268 transitions, 1034 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 18:37:56,956 INFO L231 Difference]: Finished difference. Result has 236 places, 268 transitions, 898 flow [2022-11-18 18:37:56,957 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=898, PETRI_PLACES=236, PETRI_TRANSITIONS=268} [2022-11-18 18:37:56,959 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -9 predicate places. [2022-11-18 18:37:56,959 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 268 transitions, 898 flow [2022-11-18 18:37:56,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 145.33333333333334) internal successors, (872), 6 states have internal predecessors, (872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:37:56,960 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:37:56,960 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:37:56,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:37:56,960 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:37:56,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:37:56,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1373465184, now seen corresponding path program 1 times [2022-11-18 18:37:56,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:37:56,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323853728] [2022-11-18 18:37:56,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:37:56,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:37:57,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:57,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:37:57,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:37:57,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323853728] [2022-11-18 18:37:57,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323853728] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:37:57,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:37:57,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:37:57,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289488407] [2022-11-18 18:37:57,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:37:57,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:37:57,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:37:57,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:37:57,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:37:57,528 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 247 [2022-11-18 18:37:57,529 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 268 transitions, 898 flow. Second operand has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:37:57,529 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:37:57,530 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 247 [2022-11-18 18:37:57,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:37:58,606 INFO L130 PetriNetUnfolder]: 1123/2692 cut-off events. [2022-11-18 18:37:58,607 INFO L131 PetriNetUnfolder]: For 2062/2224 co-relation queries the response was YES. [2022-11-18 18:37:58,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7695 conditions, 2692 events. 1123/2692 cut-off events. For 2062/2224 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 17777 event pairs, 548 based on Foata normal form. 0/2600 useless extension candidates. Maximal degree in co-relation 5643. Up to 1798 conditions per place. [2022-11-18 18:37:58,632 INFO L137 encePairwiseOnDemand]: 236/247 looper letters, 139 selfloop transitions, 22 changer transitions 0/298 dead transitions. [2022-11-18 18:37:58,633 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 298 transitions, 1377 flow [2022-11-18 18:37:58,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:37:58,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:37:58,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1012 transitions. [2022-11-18 18:37:58,636 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6828609986504723 [2022-11-18 18:37:58,636 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1012 transitions. [2022-11-18 18:37:58,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1012 transitions. [2022-11-18 18:37:58,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:37:58,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1012 transitions. [2022-11-18 18:37:58,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 168.66666666666666) internal successors, (1012), 6 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:37:58,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:37:58,642 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:37:58,642 INFO L175 Difference]: Start difference. First operand has 236 places, 268 transitions, 898 flow. Second operand 6 states and 1012 transitions. [2022-11-18 18:37:58,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 298 transitions, 1377 flow [2022-11-18 18:37:58,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 298 transitions, 1329 flow, removed 24 selfloop flow, removed 0 redundant places. [2022-11-18 18:37:58,654 INFO L231 Difference]: Finished difference. Result has 246 places, 289 transitions, 1064 flow [2022-11-18 18:37:58,655 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=850, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=268, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1064, PETRI_PLACES=246, PETRI_TRANSITIONS=289} [2022-11-18 18:37:58,655 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 1 predicate places. [2022-11-18 18:37:58,655 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 289 transitions, 1064 flow [2022-11-18 18:37:58,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 154.5) internal successors, (927), 6 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:37:58,656 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:37:58,656 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:37:58,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:37:58,657 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:37:58,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:37:58,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1652809650, now seen corresponding path program 1 times [2022-11-18 18:37:58,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:37:58,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359905452] [2022-11-18 18:37:58,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:37:58,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:37:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:37:59,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:37:59,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:37:59,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359905452] [2022-11-18 18:37:59,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359905452] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:37:59,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:37:59,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:37:59,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023726765] [2022-11-18 18:37:59,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:37:59,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:37:59,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:37:59,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:37:59,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:37:59,245 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 247 [2022-11-18 18:37:59,246 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 289 transitions, 1064 flow. Second operand has 6 states, 6 states have (on average 148.16666666666666) internal successors, (889), 6 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:37:59,246 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:37:59,246 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 247 [2022-11-18 18:37:59,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:38:00,577 INFO L130 PetriNetUnfolder]: 1448/3388 cut-off events. [2022-11-18 18:38:00,577 INFO L131 PetriNetUnfolder]: For 3667/3693 co-relation queries the response was YES. [2022-11-18 18:38:00,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10650 conditions, 3388 events. 1448/3388 cut-off events. For 3667/3693 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 22586 event pairs, 515 based on Foata normal form. 0/3320 useless extension candidates. Maximal degree in co-relation 9454. Up to 2180 conditions per place. [2022-11-18 18:38:00,620 INFO L137 encePairwiseOnDemand]: 231/247 looper letters, 167 selfloop transitions, 26 changer transitions 0/324 dead transitions. [2022-11-18 18:38:00,620 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 324 transitions, 1652 flow [2022-11-18 18:38:00,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:38:00,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:38:00,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 976 transitions. [2022-11-18 18:38:00,624 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6585695006747638 [2022-11-18 18:38:00,624 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 976 transitions. [2022-11-18 18:38:00,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 976 transitions. [2022-11-18 18:38:00,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:38:00,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 976 transitions. [2022-11-18 18:38:00,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 162.66666666666666) internal successors, (976), 6 states have internal predecessors, (976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:00,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:00,631 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:00,631 INFO L175 Difference]: Start difference. First operand has 246 places, 289 transitions, 1064 flow. Second operand 6 states and 976 transitions. [2022-11-18 18:38:00,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 324 transitions, 1652 flow [2022-11-18 18:38:00,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 324 transitions, 1652 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 18:38:00,645 INFO L231 Difference]: Finished difference. Result has 255 places, 309 transitions, 1328 flow [2022-11-18 18:38:00,646 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1062, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1328, PETRI_PLACES=255, PETRI_TRANSITIONS=309} [2022-11-18 18:38:00,646 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 10 predicate places. [2022-11-18 18:38:00,646 INFO L495 AbstractCegarLoop]: Abstraction has has 255 places, 309 transitions, 1328 flow [2022-11-18 18:38:00,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 148.16666666666666) internal successors, (889), 6 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:00,647 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:38:00,647 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:38:00,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 18:38:00,648 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:38:00,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:38:00,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1071839121, now seen corresponding path program 1 times [2022-11-18 18:38:00,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:38:00,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055844305] [2022-11-18 18:38:00,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:00,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:38:00,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:00,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:38:00,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:38:00,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055844305] [2022-11-18 18:38:00,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055844305] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:38:00,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:38:00,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:38:00,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743281859] [2022-11-18 18:38:00,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:38:00,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:38:00,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:38:00,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:38:00,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:38:00,846 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 247 [2022-11-18 18:38:00,847 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 309 transitions, 1328 flow. Second operand has 5 states, 5 states have (on average 206.4) internal successors, (1032), 5 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:00,847 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:38:00,847 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 247 [2022-11-18 18:38:00,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:38:01,267 INFO L130 PetriNetUnfolder]: 327/1127 cut-off events. [2022-11-18 18:38:01,268 INFO L131 PetriNetUnfolder]: For 1923/1995 co-relation queries the response was YES. [2022-11-18 18:38:01,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3317 conditions, 1127 events. 327/1127 cut-off events. For 1923/1995 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 6239 event pairs, 27 based on Foata normal form. 16/1124 useless extension candidates. Maximal degree in co-relation 3217. Up to 373 conditions per place. [2022-11-18 18:38:01,279 INFO L137 encePairwiseOnDemand]: 242/247 looper letters, 66 selfloop transitions, 4 changer transitions 1/253 dead transitions. [2022-11-18 18:38:01,279 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 253 transitions, 1124 flow [2022-11-18 18:38:01,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:38:01,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 18:38:01,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1278 transitions. [2022-11-18 18:38:01,283 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8623481781376519 [2022-11-18 18:38:01,283 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1278 transitions. [2022-11-18 18:38:01,283 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1278 transitions. [2022-11-18 18:38:01,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:38:01,284 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1278 transitions. [2022-11-18 18:38:01,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 213.0) internal successors, (1278), 6 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:01,292 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:01,293 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 247.0) internal successors, (1729), 7 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:01,294 INFO L175 Difference]: Start difference. First operand has 255 places, 309 transitions, 1328 flow. Second operand 6 states and 1278 transitions. [2022-11-18 18:38:01,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 253 transitions, 1124 flow [2022-11-18 18:38:01,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 253 transitions, 1055 flow, removed 3 selfloop flow, removed 24 redundant places. [2022-11-18 18:38:01,303 INFO L231 Difference]: Finished difference. Result has 234 places, 227 transitions, 714 flow [2022-11-18 18:38:01,303 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=705, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=714, PETRI_PLACES=234, PETRI_TRANSITIONS=227} [2022-11-18 18:38:01,306 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -11 predicate places. [2022-11-18 18:38:01,306 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 227 transitions, 714 flow [2022-11-18 18:38:01,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 206.4) internal successors, (1032), 5 states have internal predecessors, (1032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:01,307 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:38:01,307 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:38:01,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 18:38:01,307 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:38:01,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:38:01,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1726618591, now seen corresponding path program 1 times [2022-11-18 18:38:01,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:38:01,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98811385] [2022-11-18 18:38:01,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:01,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:38:01,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:04,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:38:04,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:38:04,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98811385] [2022-11-18 18:38:04,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98811385] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:38:04,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:38:04,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-18 18:38:04,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854621670] [2022-11-18 18:38:04,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:38:04,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:38:04,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:38:04,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:38:04,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:38:04,455 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-18 18:38:04,457 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 227 transitions, 714 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:04,457 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:38:04,457 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-18 18:38:04,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:38:06,827 INFO L130 PetriNetUnfolder]: 1024/2127 cut-off events. [2022-11-18 18:38:06,828 INFO L131 PetriNetUnfolder]: For 4017/4045 co-relation queries the response was YES. [2022-11-18 18:38:06,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7118 conditions, 2127 events. 1024/2127 cut-off events. For 4017/4045 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 12345 event pairs, 51 based on Foata normal form. 8/2114 useless extension candidates. Maximal degree in co-relation 6940. Up to 829 conditions per place. [2022-11-18 18:38:06,847 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 237 selfloop transitions, 64 changer transitions 0/412 dead transitions. [2022-11-18 18:38:06,847 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 412 transitions, 2480 flow [2022-11-18 18:38:06,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 18:38:06,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-18 18:38:06,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2762 transitions. [2022-11-18 18:38:06,855 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5591093117408907 [2022-11-18 18:38:06,855 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2762 transitions. [2022-11-18 18:38:06,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2762 transitions. [2022-11-18 18:38:06,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:38:06,857 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2762 transitions. [2022-11-18 18:38:06,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.1) internal successors, (2762), 20 states have internal predecessors, (2762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:06,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:06,873 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:06,873 INFO L175 Difference]: Start difference. First operand has 234 places, 227 transitions, 714 flow. Second operand 20 states and 2762 transitions. [2022-11-18 18:38:06,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 412 transitions, 2480 flow [2022-11-18 18:38:06,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 412 transitions, 2455 flow, removed 3 selfloop flow, removed 7 redundant places. [2022-11-18 18:38:06,890 INFO L231 Difference]: Finished difference. Result has 254 places, 276 transitions, 1355 flow [2022-11-18 18:38:06,891 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=1355, PETRI_PLACES=254, PETRI_TRANSITIONS=276} [2022-11-18 18:38:06,891 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 9 predicate places. [2022-11-18 18:38:06,892 INFO L495 AbstractCegarLoop]: Abstraction has has 254 places, 276 transitions, 1355 flow [2022-11-18 18:38:06,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:06,893 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:38:06,893 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:38:06,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 18:38:06,894 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:38:06,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:38:06,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1393729333, now seen corresponding path program 2 times [2022-11-18 18:38:06,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:38:06,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370226566] [2022-11-18 18:38:06,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:06,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:38:06,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:09,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:38:09,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:38:09,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370226566] [2022-11-18 18:38:09,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370226566] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:38:09,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:38:09,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-18 18:38:09,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288667727] [2022-11-18 18:38:09,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:38:09,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:38:09,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:38:09,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:38:09,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:38:09,084 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-18 18:38:09,086 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 276 transitions, 1355 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:09,086 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:38:09,087 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-18 18:38:09,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:38:11,054 INFO L130 PetriNetUnfolder]: 1268/2618 cut-off events. [2022-11-18 18:38:11,054 INFO L131 PetriNetUnfolder]: For 11527/11555 co-relation queries the response was YES. [2022-11-18 18:38:11,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11180 conditions, 2618 events. 1268/2618 cut-off events. For 11527/11555 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 15670 event pairs, 366 based on Foata normal form. 8/2593 useless extension candidates. Maximal degree in co-relation 10998. Up to 1471 conditions per place. [2022-11-18 18:38:11,077 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 212 selfloop transitions, 85 changer transitions 0/408 dead transitions. [2022-11-18 18:38:11,077 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 408 transitions, 2949 flow [2022-11-18 18:38:11,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 18:38:11,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-18 18:38:11,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2367 transitions. [2022-11-18 18:38:11,083 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5637056442010002 [2022-11-18 18:38:11,084 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2367 transitions. [2022-11-18 18:38:11,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2367 transitions. [2022-11-18 18:38:11,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:38:11,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2367 transitions. [2022-11-18 18:38:11,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 139.23529411764707) internal successors, (2367), 17 states have internal predecessors, (2367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:11,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:11,115 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:11,115 INFO L175 Difference]: Start difference. First operand has 254 places, 276 transitions, 1355 flow. Second operand 17 states and 2367 transitions. [2022-11-18 18:38:11,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 408 transitions, 2949 flow [2022-11-18 18:38:11,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 408 transitions, 2881 flow, removed 15 selfloop flow, removed 9 redundant places. [2022-11-18 18:38:11,160 INFO L231 Difference]: Finished difference. Result has 269 places, 323 transitions, 2278 flow [2022-11-18 18:38:11,162 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=1309, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=2278, PETRI_PLACES=269, PETRI_TRANSITIONS=323} [2022-11-18 18:38:11,164 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 24 predicate places. [2022-11-18 18:38:11,164 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 323 transitions, 2278 flow [2022-11-18 18:38:11,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:11,165 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:38:11,165 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:38:11,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 18:38:11,166 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:38:11,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:38:11,166 INFO L85 PathProgramCache]: Analyzing trace with hash 159715451, now seen corresponding path program 3 times [2022-11-18 18:38:11,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:38:11,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206539350] [2022-11-18 18:38:11,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:11,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:38:11,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:13,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:38:13,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:38:13,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206539350] [2022-11-18 18:38:13,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206539350] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:38:13,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:38:13,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-18 18:38:13,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227427985] [2022-11-18 18:38:13,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:38:13,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:38:13,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:38:13,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:38:13,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:38:13,443 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-18 18:38:13,445 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 323 transitions, 2278 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:13,445 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:38:13,445 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-18 18:38:13,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:38:15,849 INFO L130 PetriNetUnfolder]: 1375/2751 cut-off events. [2022-11-18 18:38:15,849 INFO L131 PetriNetUnfolder]: For 18341/18341 co-relation queries the response was YES. [2022-11-18 18:38:15,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13987 conditions, 2751 events. 1375/2751 cut-off events. For 18341/18341 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 16219 event pairs, 399 based on Foata normal form. 8/2726 useless extension candidates. Maximal degree in co-relation 13797. Up to 1418 conditions per place. [2022-11-18 18:38:15,882 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 199 selfloop transitions, 127 changer transitions 0/437 dead transitions. [2022-11-18 18:38:15,883 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 437 transitions, 3895 flow [2022-11-18 18:38:15,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 18:38:15,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-18 18:38:15,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2233 transitions. [2022-11-18 18:38:15,890 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5650303643724697 [2022-11-18 18:38:15,890 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2233 transitions. [2022-11-18 18:38:15,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2233 transitions. [2022-11-18 18:38:15,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:38:15,892 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2233 transitions. [2022-11-18 18:38:15,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 139.5625) internal successors, (2233), 16 states have internal predecessors, (2233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:15,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 247.0) internal successors, (4199), 17 states have internal predecessors, (4199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:15,904 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 247.0) internal successors, (4199), 17 states have internal predecessors, (4199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:15,904 INFO L175 Difference]: Start difference. First operand has 269 places, 323 transitions, 2278 flow. Second operand 16 states and 2233 transitions. [2022-11-18 18:38:15,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 437 transitions, 3895 flow [2022-11-18 18:38:15,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 437 transitions, 3698 flow, removed 83 selfloop flow, removed 9 redundant places. [2022-11-18 18:38:15,992 INFO L231 Difference]: Finished difference. Result has 281 places, 367 transitions, 3262 flow [2022-11-18 18:38:15,993 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=2149, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=3262, PETRI_PLACES=281, PETRI_TRANSITIONS=367} [2022-11-18 18:38:15,994 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 36 predicate places. [2022-11-18 18:38:15,994 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 367 transitions, 3262 flow [2022-11-18 18:38:15,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:15,996 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:38:15,996 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:38:15,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 18:38:15,996 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:38:15,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:38:15,997 INFO L85 PathProgramCache]: Analyzing trace with hash 458935901, now seen corresponding path program 4 times [2022-11-18 18:38:15,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:38:15,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043524099] [2022-11-18 18:38:15,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:15,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:38:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:18,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:38:18,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:38:18,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043524099] [2022-11-18 18:38:18,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043524099] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:38:18,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:38:18,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-18 18:38:18,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635232001] [2022-11-18 18:38:18,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:38:18,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:38:18,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:38:18,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:38:18,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:38:18,297 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-18 18:38:18,299 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 367 transitions, 3262 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:18,300 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:38:18,300 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-18 18:38:18,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:38:21,119 INFO L130 PetriNetUnfolder]: 1655/3274 cut-off events. [2022-11-18 18:38:21,120 INFO L131 PetriNetUnfolder]: For 32815/32899 co-relation queries the response was YES. [2022-11-18 18:38:21,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18804 conditions, 3274 events. 1655/3274 cut-off events. For 32815/32899 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 20192 event pairs, 260 based on Foata normal form. 8/3250 useless extension candidates. Maximal degree in co-relation 18609. Up to 1454 conditions per place. [2022-11-18 18:38:21,154 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 317 selfloop transitions, 161 changer transitions 0/589 dead transitions. [2022-11-18 18:38:21,154 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 589 transitions, 7145 flow [2022-11-18 18:38:21,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 18:38:21,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-18 18:38:21,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2768 transitions. [2022-11-18 18:38:21,161 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5603238866396761 [2022-11-18 18:38:21,161 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2768 transitions. [2022-11-18 18:38:21,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2768 transitions. [2022-11-18 18:38:21,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:38:21,163 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2768 transitions. [2022-11-18 18:38:21,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.4) internal successors, (2768), 20 states have internal predecessors, (2768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:21,176 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:21,177 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:21,178 INFO L175 Difference]: Start difference. First operand has 281 places, 367 transitions, 3262 flow. Second operand 20 states and 2768 transitions. [2022-11-18 18:38:21,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 589 transitions, 7145 flow [2022-11-18 18:38:21,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 589 transitions, 6965 flow, removed 15 selfloop flow, removed 9 redundant places. [2022-11-18 18:38:21,289 INFO L231 Difference]: Finished difference. Result has 298 places, 440 transitions, 5176 flow [2022-11-18 18:38:21,289 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=3176, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=5176, PETRI_PLACES=298, PETRI_TRANSITIONS=440} [2022-11-18 18:38:21,290 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 53 predicate places. [2022-11-18 18:38:21,290 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 440 transitions, 5176 flow [2022-11-18 18:38:21,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:21,291 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:38:21,291 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:38:21,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 18:38:21,292 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:38:21,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:38:21,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1435470851, now seen corresponding path program 5 times [2022-11-18 18:38:21,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:38:21,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73108320] [2022-11-18 18:38:21,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:21,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:38:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:23,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:38:23,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:38:23,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73108320] [2022-11-18 18:38:23,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73108320] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:38:23,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:38:23,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-18 18:38:23,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136330713] [2022-11-18 18:38:23,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:38:23,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:38:23,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:38:23,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:38:23,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:38:23,131 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-18 18:38:23,134 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 440 transitions, 5176 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:23,134 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:38:23,134 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-18 18:38:23,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:38:26,332 INFO L130 PetriNetUnfolder]: 1872/3659 cut-off events. [2022-11-18 18:38:26,332 INFO L131 PetriNetUnfolder]: For 50970/50970 co-relation queries the response was YES. [2022-11-18 18:38:26,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24355 conditions, 3659 events. 1872/3659 cut-off events. For 50970/50970 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 22995 event pairs, 422 based on Foata normal form. 8/3635 useless extension candidates. Maximal degree in co-relation 24153. Up to 1836 conditions per place. [2022-11-18 18:38:26,370 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 246 selfloop transitions, 235 changer transitions 0/592 dead transitions. [2022-11-18 18:38:26,370 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 592 transitions, 7984 flow [2022-11-18 18:38:26,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 18:38:26,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-18 18:38:26,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2375 transitions. [2022-11-18 18:38:26,375 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5656108597285068 [2022-11-18 18:38:26,375 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2375 transitions. [2022-11-18 18:38:26,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2375 transitions. [2022-11-18 18:38:26,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:38:26,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2375 transitions. [2022-11-18 18:38:26,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 139.7058823529412) internal successors, (2375), 17 states have internal predecessors, (2375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:26,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:26,388 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:26,389 INFO L175 Difference]: Start difference. First operand has 298 places, 440 transitions, 5176 flow. Second operand 17 states and 2375 transitions. [2022-11-18 18:38:26,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 592 transitions, 7984 flow [2022-11-18 18:38:26,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 592 transitions, 7669 flow, removed 92 selfloop flow, removed 12 redundant places. [2022-11-18 18:38:26,593 INFO L231 Difference]: Finished difference. Result has 308 places, 505 transitions, 7095 flow [2022-11-18 18:38:26,594 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=4925, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=173, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=7095, PETRI_PLACES=308, PETRI_TRANSITIONS=505} [2022-11-18 18:38:26,595 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 63 predicate places. [2022-11-18 18:38:26,595 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 505 transitions, 7095 flow [2022-11-18 18:38:26,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:26,596 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:38:26,596 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:38:26,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 18:38:26,597 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:38:26,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:38:26,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1790632389, now seen corresponding path program 6 times [2022-11-18 18:38:26,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:38:26,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760385919] [2022-11-18 18:38:26,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:26,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:38:26,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:28,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:38:28,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:38:28,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760385919] [2022-11-18 18:38:28,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760385919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:38:28,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:38:28,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-18 18:38:28,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162540414] [2022-11-18 18:38:28,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:38:28,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:38:28,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:38:28,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:38:28,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:38:28,575 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-18 18:38:28,577 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 505 transitions, 7095 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:28,577 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:38:28,577 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-18 18:38:28,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:38:31,293 INFO L130 PetriNetUnfolder]: 1946/3781 cut-off events. [2022-11-18 18:38:31,293 INFO L131 PetriNetUnfolder]: For 70368/70368 co-relation queries the response was YES. [2022-11-18 18:38:31,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27116 conditions, 3781 events. 1946/3781 cut-off events. For 70368/70368 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 24152 event pairs, 56 based on Foata normal form. 8/3770 useless extension candidates. Maximal degree in co-relation 26908. Up to 1745 conditions per place. [2022-11-18 18:38:31,335 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 367 selfloop transitions, 215 changer transitions 0/693 dead transitions. [2022-11-18 18:38:31,335 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 693 transitions, 11011 flow [2022-11-18 18:38:31,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 18:38:31,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-18 18:38:31,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2768 transitions. [2022-11-18 18:38:31,340 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5603238866396761 [2022-11-18 18:38:31,341 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2768 transitions. [2022-11-18 18:38:31,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2768 transitions. [2022-11-18 18:38:31,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:38:31,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2768 transitions. [2022-11-18 18:38:31,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.4) internal successors, (2768), 20 states have internal predecessors, (2768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:31,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:31,355 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:31,355 INFO L175 Difference]: Start difference. First operand has 308 places, 505 transitions, 7095 flow. Second operand 20 states and 2768 transitions. [2022-11-18 18:38:31,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 693 transitions, 11011 flow [2022-11-18 18:38:31,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 693 transitions, 10749 flow, removed 49 selfloop flow, removed 9 redundant places. [2022-11-18 18:38:31,662 INFO L231 Difference]: Finished difference. Result has 324 places, 537 transitions, 8247 flow [2022-11-18 18:38:31,663 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=6936, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=505, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=186, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=8247, PETRI_PLACES=324, PETRI_TRANSITIONS=537} [2022-11-18 18:38:31,663 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 79 predicate places. [2022-11-18 18:38:31,664 INFO L495 AbstractCegarLoop]: Abstraction has has 324 places, 537 transitions, 8247 flow [2022-11-18 18:38:31,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:31,665 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:38:31,665 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:38:31,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 18:38:31,665 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:38:31,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:38:31,666 INFO L85 PathProgramCache]: Analyzing trace with hash -151037885, now seen corresponding path program 7 times [2022-11-18 18:38:31,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:38:31,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836528957] [2022-11-18 18:38:31,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:31,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:38:31,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:33,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:38:33,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:38:33,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836528957] [2022-11-18 18:38:33,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836528957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:38:33,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:38:33,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-18 18:38:33,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203044447] [2022-11-18 18:38:33,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:38:33,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:38:33,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:38:33,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:38:33,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:38:33,345 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-18 18:38:33,348 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 537 transitions, 8247 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:33,348 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:38:33,348 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-18 18:38:33,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:38:36,063 INFO L130 PetriNetUnfolder]: 2205/4295 cut-off events. [2022-11-18 18:38:36,063 INFO L131 PetriNetUnfolder]: For 80010/80010 co-relation queries the response was YES. [2022-11-18 18:38:36,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32432 conditions, 4295 events. 2205/4295 cut-off events. For 80010/80010 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 28069 event pairs, 431 based on Foata normal form. 8/4271 useless extension candidates. Maximal degree in co-relation 32218. Up to 2124 conditions per place. [2022-11-18 18:38:36,101 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 276 selfloop transitions, 309 changer transitions 0/696 dead transitions. [2022-11-18 18:38:36,101 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 696 transitions, 11805 flow [2022-11-18 18:38:36,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 18:38:36,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-18 18:38:36,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2374 transitions. [2022-11-18 18:38:36,106 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5653727077875684 [2022-11-18 18:38:36,106 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2374 transitions. [2022-11-18 18:38:36,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2374 transitions. [2022-11-18 18:38:36,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:38:36,107 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2374 transitions. [2022-11-18 18:38:36,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 139.64705882352942) internal successors, (2374), 17 states have internal predecessors, (2374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:36,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:36,118 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 247.0) internal successors, (4446), 18 states have internal predecessors, (4446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:36,118 INFO L175 Difference]: Start difference. First operand has 324 places, 537 transitions, 8247 flow. Second operand 17 states and 2374 transitions. [2022-11-18 18:38:36,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 696 transitions, 11805 flow [2022-11-18 18:38:36,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 696 transitions, 11582 flow, removed 34 selfloop flow, removed 12 redundant places. [2022-11-18 18:38:36,457 INFO L231 Difference]: Finished difference. Result has 336 places, 622 transitions, 11243 flow [2022-11-18 18:38:36,458 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=8075, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=537, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=228, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=11243, PETRI_PLACES=336, PETRI_TRANSITIONS=622} [2022-11-18 18:38:36,458 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 91 predicate places. [2022-11-18 18:38:36,458 INFO L495 AbstractCegarLoop]: Abstraction has has 336 places, 622 transitions, 11243 flow [2022-11-18 18:38:36,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:36,459 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:38:36,459 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:38:36,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 18:38:36,459 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:38:36,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:38:36,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1981756155, now seen corresponding path program 8 times [2022-11-18 18:38:36,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:38:36,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619791762] [2022-11-18 18:38:36,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:36,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:38:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:38,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:38:38,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:38:38,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619791762] [2022-11-18 18:38:38,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619791762] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:38:38,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:38:38,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-18 18:38:38,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424627661] [2022-11-18 18:38:38,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:38:38,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:38:38,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:38:38,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:38:38,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:38:38,091 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-18 18:38:38,093 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 622 transitions, 11243 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:38,093 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:38:38,093 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-18 18:38:38,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:38:41,326 INFO L130 PetriNetUnfolder]: 2251/4398 cut-off events. [2022-11-18 18:38:41,326 INFO L131 PetriNetUnfolder]: For 109426/109454 co-relation queries the response was YES. [2022-11-18 18:38:41,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36037 conditions, 4398 events. 2251/4398 cut-off events. For 109426/109454 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 29018 event pairs, 101 based on Foata normal form. 8/4383 useless extension candidates. Maximal degree in co-relation 35815. Up to 2085 conditions per place. [2022-11-18 18:38:41,388 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 418 selfloop transitions, 273 changer transitions 0/802 dead transitions. [2022-11-18 18:38:41,388 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 802 transitions, 15569 flow [2022-11-18 18:38:41,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-18 18:38:41,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-18 18:38:41,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2631 transitions. [2022-11-18 18:38:41,392 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.560622203281483 [2022-11-18 18:38:41,393 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2631 transitions. [2022-11-18 18:38:41,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2631 transitions. [2022-11-18 18:38:41,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:38:41,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2631 transitions. [2022-11-18 18:38:41,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 138.47368421052633) internal successors, (2631), 19 states have internal predecessors, (2631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:41,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:41,407 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:41,408 INFO L175 Difference]: Start difference. First operand has 336 places, 622 transitions, 11243 flow. Second operand 19 states and 2631 transitions. [2022-11-18 18:38:41,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 802 transitions, 15569 flow [2022-11-18 18:38:41,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 802 transitions, 15133 flow, removed 144 selfloop flow, removed 10 redundant places. [2022-11-18 18:38:41,814 INFO L231 Difference]: Finished difference. Result has 349 places, 641 transitions, 12406 flow [2022-11-18 18:38:41,815 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=10925, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=622, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=254, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=12406, PETRI_PLACES=349, PETRI_TRANSITIONS=641} [2022-11-18 18:38:41,816 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 104 predicate places. [2022-11-18 18:38:41,816 INFO L495 AbstractCegarLoop]: Abstraction has has 349 places, 641 transitions, 12406 flow [2022-11-18 18:38:41,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:41,817 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:38:41,817 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:38:41,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 18:38:41,817 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:38:41,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:38:41,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1914038053, now seen corresponding path program 9 times [2022-11-18 18:38:41,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:38:41,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552997870] [2022-11-18 18:38:41,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:41,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:38:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:43,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:38:43,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:38:43,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552997870] [2022-11-18 18:38:43,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552997870] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:38:43,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:38:43,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-18 18:38:43,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415083673] [2022-11-18 18:38:43,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:38:43,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:38:43,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:38:43,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:38:43,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:38:43,433 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-18 18:38:43,435 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 641 transitions, 12406 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:43,436 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:38:43,436 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-18 18:38:43,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:38:46,721 INFO L130 PetriNetUnfolder]: 2410/4643 cut-off events. [2022-11-18 18:38:46,721 INFO L131 PetriNetUnfolder]: For 124889/124889 co-relation queries the response was YES. [2022-11-18 18:38:46,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40619 conditions, 4643 events. 2410/4643 cut-off events. For 124889/124889 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 30532 event pairs, 172 based on Foata normal form. 8/4625 useless extension candidates. Maximal degree in co-relation 40395. Up to 2683 conditions per place. [2022-11-18 18:38:46,771 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 359 selfloop transitions, 313 changer transitions 0/783 dead transitions. [2022-11-18 18:38:46,771 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 783 transitions, 15985 flow [2022-11-18 18:38:46,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 18:38:46,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-18 18:38:46,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2506 transitions. [2022-11-18 18:38:46,776 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5636527215474584 [2022-11-18 18:38:46,776 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2506 transitions. [2022-11-18 18:38:46,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2506 transitions. [2022-11-18 18:38:46,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:38:46,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2506 transitions. [2022-11-18 18:38:46,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 139.22222222222223) internal successors, (2506), 18 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:46,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:46,788 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:46,788 INFO L175 Difference]: Start difference. First operand has 349 places, 641 transitions, 12406 flow. Second operand 18 states and 2506 transitions. [2022-11-18 18:38:46,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 783 transitions, 15985 flow [2022-11-18 18:38:47,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 783 transitions, 15830 flow, removed 2 selfloop flow, removed 11 redundant places. [2022-11-18 18:38:47,354 INFO L231 Difference]: Finished difference. Result has 360 places, 687 transitions, 14757 flow [2022-11-18 18:38:47,355 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=12270, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=641, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=270, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=14757, PETRI_PLACES=360, PETRI_TRANSITIONS=687} [2022-11-18 18:38:47,355 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 115 predicate places. [2022-11-18 18:38:47,355 INFO L495 AbstractCegarLoop]: Abstraction has has 360 places, 687 transitions, 14757 flow [2022-11-18 18:38:47,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:47,355 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:38:47,355 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:38:47,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 18:38:47,356 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:38:47,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:38:47,356 INFO L85 PathProgramCache]: Analyzing trace with hash -2038817223, now seen corresponding path program 10 times [2022-11-18 18:38:47,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:38:47,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420612500] [2022-11-18 18:38:47,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:47,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:38:47,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:49,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:38:49,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:38:49,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420612500] [2022-11-18 18:38:49,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420612500] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:38:49,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:38:49,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-18 18:38:49,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679936772] [2022-11-18 18:38:49,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:38:49,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:38:49,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:38:49,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:38:49,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:38:49,105 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-18 18:38:49,107 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 687 transitions, 14757 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:49,107 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:38:49,107 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-18 18:38:49,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:38:53,179 INFO L130 PetriNetUnfolder]: 2627/5124 cut-off events. [2022-11-18 18:38:53,179 INFO L131 PetriNetUnfolder]: For 162008/162008 co-relation queries the response was YES. [2022-11-18 18:38:53,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47077 conditions, 5124 events. 2627/5124 cut-off events. For 162008/162008 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 34675 event pairs, 448 based on Foata normal form. 8/5099 useless extension candidates. Maximal degree in co-relation 46848. Up to 2326 conditions per place. [2022-11-18 18:38:53,241 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 308 selfloop transitions, 478 changer transitions 0/897 dead transitions. [2022-11-18 18:38:53,241 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 897 transitions, 20111 flow [2022-11-18 18:38:53,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 18:38:53,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-18 18:38:53,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2765 transitions. [2022-11-18 18:38:53,246 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5597165991902834 [2022-11-18 18:38:53,246 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2765 transitions. [2022-11-18 18:38:53,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2765 transitions. [2022-11-18 18:38:53,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:38:53,248 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2765 transitions. [2022-11-18 18:38:53,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.25) internal successors, (2765), 20 states have internal predecessors, (2765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:53,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:53,260 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:53,260 INFO L175 Difference]: Start difference. First operand has 360 places, 687 transitions, 14757 flow. Second operand 20 states and 2765 transitions. [2022-11-18 18:38:53,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 897 transitions, 20111 flow [2022-11-18 18:38:54,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 897 transitions, 19920 flow, removed 48 selfloop flow, removed 11 redundant places. [2022-11-18 18:38:54,185 INFO L231 Difference]: Finished difference. Result has 380 places, 813 transitions, 19301 flow [2022-11-18 18:38:54,186 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=14567, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=687, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=356, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=19301, PETRI_PLACES=380, PETRI_TRANSITIONS=813} [2022-11-18 18:38:54,186 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 135 predicate places. [2022-11-18 18:38:54,186 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 813 transitions, 19301 flow [2022-11-18 18:38:54,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:54,187 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:38:54,187 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:38:54,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 18:38:54,187 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:38:54,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:38:54,188 INFO L85 PathProgramCache]: Analyzing trace with hash -853750051, now seen corresponding path program 11 times [2022-11-18 18:38:54,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:38:54,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180956292] [2022-11-18 18:38:54,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:38:54,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:38:54,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:38:55,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:38:55,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:38:55,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180956292] [2022-11-18 18:38:55,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180956292] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:38:55,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:38:55,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-18 18:38:55,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612718380] [2022-11-18 18:38:55,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:38:55,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:38:55,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:38:55,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:38:55,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:38:55,914 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-18 18:38:55,916 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 813 transitions, 19301 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:55,916 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:38:55,916 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-18 18:38:55,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:38:59,753 INFO L130 PetriNetUnfolder]: 2631/5128 cut-off events. [2022-11-18 18:38:59,753 INFO L131 PetriNetUnfolder]: For 186733/186761 co-relation queries the response was YES. [2022-11-18 18:38:59,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51024 conditions, 5128 events. 2631/5128 cut-off events. For 186733/186761 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 34892 event pairs, 121 based on Foata normal form. 8/5113 useless extension candidates. Maximal degree in co-relation 50783. Up to 2486 conditions per place. [2022-11-18 18:38:59,802 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 498 selfloop transitions, 347 changer transitions 0/956 dead transitions. [2022-11-18 18:38:59,802 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 956 transitions, 23274 flow [2022-11-18 18:38:59,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 18:38:59,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-18 18:38:59,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2766 transitions. [2022-11-18 18:38:59,806 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.559919028340081 [2022-11-18 18:38:59,807 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2766 transitions. [2022-11-18 18:38:59,807 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2766 transitions. [2022-11-18 18:38:59,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:38:59,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2766 transitions. [2022-11-18 18:38:59,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.3) internal successors, (2766), 20 states have internal predecessors, (2766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:59,818 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:59,819 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:38:59,819 INFO L175 Difference]: Start difference. First operand has 380 places, 813 transitions, 19301 flow. Second operand 20 states and 2766 transitions. [2022-11-18 18:38:59,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 956 transitions, 23274 flow [2022-11-18 18:39:00,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 956 transitions, 22797 flow, removed 233 selfloop flow, removed 6 redundant places. [2022-11-18 18:39:00,698 INFO L231 Difference]: Finished difference. Result has 397 places, 831 transitions, 20331 flow [2022-11-18 18:39:00,699 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=18856, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=813, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=332, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=473, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=20331, PETRI_PLACES=397, PETRI_TRANSITIONS=831} [2022-11-18 18:39:00,699 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 152 predicate places. [2022-11-18 18:39:00,699 INFO L495 AbstractCegarLoop]: Abstraction has has 397 places, 831 transitions, 20331 flow [2022-11-18 18:39:00,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:00,700 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:39:00,701 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:00,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 18:39:00,701 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:39:00,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:00,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1298826229, now seen corresponding path program 12 times [2022-11-18 18:39:00,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:39:00,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597035282] [2022-11-18 18:39:00,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:00,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:39:00,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:02,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:39:02,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:39:02,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597035282] [2022-11-18 18:39:02,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597035282] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:02,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:39:02,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-18 18:39:02,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891500881] [2022-11-18 18:39:02,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:02,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:39:02,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:39:02,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:39:02,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:39:02,104 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-18 18:39:02,106 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 397 places, 831 transitions, 20331 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:02,107 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:39:02,107 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-18 18:39:02,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:39:05,584 INFO L130 PetriNetUnfolder]: 2855/5518 cut-off events. [2022-11-18 18:39:05,584 INFO L131 PetriNetUnfolder]: For 218899/218899 co-relation queries the response was YES. [2022-11-18 18:39:05,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57582 conditions, 5518 events. 2855/5518 cut-off events. For 218899/218899 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 38008 event pairs, 211 based on Foata normal form. 8/5500 useless extension candidates. Maximal degree in co-relation 57337. Up to 3187 conditions per place. [2022-11-18 18:39:05,644 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 479 selfloop transitions, 399 changer transitions 0/989 dead transitions. [2022-11-18 18:39:05,645 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 989 transitions, 25653 flow [2022-11-18 18:39:05,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 18:39:05,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-18 18:39:05,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2505 transitions. [2022-11-18 18:39:05,649 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5634278002699056 [2022-11-18 18:39:05,650 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2505 transitions. [2022-11-18 18:39:05,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2505 transitions. [2022-11-18 18:39:05,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:39:05,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2505 transitions. [2022-11-18 18:39:05,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 139.16666666666666) internal successors, (2505), 18 states have internal predecessors, (2505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:05,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:05,660 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:05,660 INFO L175 Difference]: Start difference. First operand has 397 places, 831 transitions, 20331 flow. Second operand 18 states and 2505 transitions. [2022-11-18 18:39:05,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 989 transitions, 25653 flow [2022-11-18 18:39:06,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 989 transitions, 25392 flow, removed 22 selfloop flow, removed 14 redundant places. [2022-11-18 18:39:06,826 INFO L231 Difference]: Finished difference. Result has 407 places, 909 transitions, 24471 flow [2022-11-18 18:39:06,827 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=20088, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=831, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=325, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=477, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=24471, PETRI_PLACES=407, PETRI_TRANSITIONS=909} [2022-11-18 18:39:06,827 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 162 predicate places. [2022-11-18 18:39:06,827 INFO L495 AbstractCegarLoop]: Abstraction has has 407 places, 909 transitions, 24471 flow [2022-11-18 18:39:06,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:06,828 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:39:06,828 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:06,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-18 18:39:06,829 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:39:06,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:06,829 INFO L85 PathProgramCache]: Analyzing trace with hash -656161895, now seen corresponding path program 13 times [2022-11-18 18:39:06,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:39:06,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556327246] [2022-11-18 18:39:06,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:06,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:39:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:08,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:39:08,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:39:08,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556327246] [2022-11-18 18:39:08,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556327246] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:08,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:39:08,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-18 18:39:08,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772657085] [2022-11-18 18:39:08,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:08,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:39:08,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:39:08,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:39:08,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:39:08,732 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-18 18:39:08,734 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 407 places, 909 transitions, 24471 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:08,734 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:39:08,734 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-18 18:39:08,734 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:39:13,469 INFO L130 PetriNetUnfolder]: 3275/6346 cut-off events. [2022-11-18 18:39:13,469 INFO L131 PetriNetUnfolder]: For 299028/299056 co-relation queries the response was YES. [2022-11-18 18:39:13,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70470 conditions, 6346 events. 3275/6346 cut-off events. For 299028/299056 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 44749 event pairs, 264 based on Foata normal form. 8/6327 useless extension candidates. Maximal degree in co-relation 70218. Up to 3656 conditions per place. [2022-11-18 18:39:13,555 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 565 selfloop transitions, 471 changer transitions 0/1147 dead transitions. [2022-11-18 18:39:13,555 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 1147 transitions, 33211 flow [2022-11-18 18:39:13,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 18:39:13,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-18 18:39:13,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2767 transitions. [2022-11-18 18:39:13,559 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5601214574898785 [2022-11-18 18:39:13,559 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2767 transitions. [2022-11-18 18:39:13,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2767 transitions. [2022-11-18 18:39:13,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:39:13,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2767 transitions. [2022-11-18 18:39:13,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.35) internal successors, (2767), 20 states have internal predecessors, (2767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:13,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:13,571 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:13,572 INFO L175 Difference]: Start difference. First operand has 407 places, 909 transitions, 24471 flow. Second operand 20 states and 2767 transitions. [2022-11-18 18:39:13,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 1147 transitions, 33211 flow [2022-11-18 18:39:15,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 1147 transitions, 32996 flow, removed 78 selfloop flow, removed 9 redundant places. [2022-11-18 18:39:15,515 INFO L231 Difference]: Finished difference. Result has 426 places, 1050 transitions, 31827 flow [2022-11-18 18:39:15,516 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=24270, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=909, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=355, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=508, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=31827, PETRI_PLACES=426, PETRI_TRANSITIONS=1050} [2022-11-18 18:39:15,517 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 181 predicate places. [2022-11-18 18:39:15,517 INFO L495 AbstractCegarLoop]: Abstraction has has 426 places, 1050 transitions, 31827 flow [2022-11-18 18:39:15,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:15,517 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:39:15,518 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:15,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-18 18:39:15,518 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:39:15,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:15,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1946043831, now seen corresponding path program 14 times [2022-11-18 18:39:15,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:39:15,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636571259] [2022-11-18 18:39:15,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:15,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:39:15,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:17,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:39:17,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:39:17,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636571259] [2022-11-18 18:39:17,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636571259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:17,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:39:17,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-18 18:39:17,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12485706] [2022-11-18 18:39:17,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:17,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:39:17,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:39:17,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:39:17,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:39:17,311 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-18 18:39:17,313 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 1050 transitions, 31827 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:17,313 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:39:17,313 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-18 18:39:17,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:39:23,573 INFO L130 PetriNetUnfolder]: 3463/6799 cut-off events. [2022-11-18 18:39:23,574 INFO L131 PetriNetUnfolder]: For 370237/370251 co-relation queries the response was YES. [2022-11-18 18:39:23,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79066 conditions, 6799 events. 3463/6799 cut-off events. For 370237/370251 co-relation queries the response was YES. Maximal size of possible extension queue 327. Compared 49594 event pairs, 438 based on Foata normal form. 11/6785 useless extension candidates. Maximal degree in co-relation 78805. Up to 3599 conditions per place. [2022-11-18 18:39:23,673 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 534 selfloop transitions, 588 changer transitions 0/1233 dead transitions. [2022-11-18 18:39:23,673 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 1233 transitions, 38708 flow [2022-11-18 18:39:23,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 18:39:23,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-18 18:39:23,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2767 transitions. [2022-11-18 18:39:23,677 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5601214574898785 [2022-11-18 18:39:23,677 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2767 transitions. [2022-11-18 18:39:23,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2767 transitions. [2022-11-18 18:39:23,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:39:23,678 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2767 transitions. [2022-11-18 18:39:23,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.35) internal successors, (2767), 20 states have internal predecessors, (2767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:23,687 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:23,688 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:23,688 INFO L175 Difference]: Start difference. First operand has 426 places, 1050 transitions, 31827 flow. Second operand 20 states and 2767 transitions. [2022-11-18 18:39:23,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 1233 transitions, 38708 flow [2022-11-18 18:39:26,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 1233 transitions, 38293 flow, removed 185 selfloop flow, removed 8 redundant places. [2022-11-18 18:39:26,413 INFO L231 Difference]: Finished difference. Result has 447 places, 1148 transitions, 37113 flow [2022-11-18 18:39:26,414 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=31413, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1050, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=494, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=527, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=37113, PETRI_PLACES=447, PETRI_TRANSITIONS=1148} [2022-11-18 18:39:26,414 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 202 predicate places. [2022-11-18 18:39:26,415 INFO L495 AbstractCegarLoop]: Abstraction has has 447 places, 1148 transitions, 37113 flow [2022-11-18 18:39:26,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:26,415 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:39:26,415 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:26,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-18 18:39:26,416 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:39:26,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:26,416 INFO L85 PathProgramCache]: Analyzing trace with hash 944467097, now seen corresponding path program 15 times [2022-11-18 18:39:26,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:39:26,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263346629] [2022-11-18 18:39:26,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:26,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:39:26,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:27,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:39:27,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:39:27,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263346629] [2022-11-18 18:39:27,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263346629] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:27,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:39:27,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-18 18:39:27,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877890368] [2022-11-18 18:39:27,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:27,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:39:27,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:39:27,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:39:27,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:39:27,865 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-18 18:39:27,867 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 447 places, 1148 transitions, 37113 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:27,867 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:39:27,867 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-18 18:39:27,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:39:34,023 INFO L130 PetriNetUnfolder]: 3572/6897 cut-off events. [2022-11-18 18:39:34,023 INFO L131 PetriNetUnfolder]: For 420568/420582 co-relation queries the response was YES. [2022-11-18 18:39:34,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85664 conditions, 6897 events. 3572/6897 cut-off events. For 420568/420582 co-relation queries the response was YES. Maximal size of possible extension queue 330. Compared 50021 event pairs, 217 based on Foata normal form. 14/6889 useless extension candidates. Maximal degree in co-relation 85393. Up to 4136 conditions per place. [2022-11-18 18:39:34,140 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 649 selfloop transitions, 521 changer transitions 0/1281 dead transitions. [2022-11-18 18:39:34,140 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 1281 transitions, 42033 flow [2022-11-18 18:39:34,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-18 18:39:34,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-18 18:39:34,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2636 transitions. [2022-11-18 18:39:34,145 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.561687619859365 [2022-11-18 18:39:34,145 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2636 transitions. [2022-11-18 18:39:34,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2636 transitions. [2022-11-18 18:39:34,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:39:34,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2636 transitions. [2022-11-18 18:39:34,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 138.73684210526315) internal successors, (2636), 19 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:34,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:34,157 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:34,157 INFO L175 Difference]: Start difference. First operand has 447 places, 1148 transitions, 37113 flow. Second operand 19 states and 2636 transitions. [2022-11-18 18:39:34,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 1281 transitions, 42033 flow [2022-11-18 18:39:37,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 1281 transitions, 41439 flow, removed 271 selfloop flow, removed 10 redundant places. [2022-11-18 18:39:37,452 INFO L231 Difference]: Finished difference. Result has 463 places, 1191 transitions, 40408 flow [2022-11-18 18:39:37,453 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=36519, PETRI_DIFFERENCE_MINUEND_PLACES=437, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=480, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=651, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=40408, PETRI_PLACES=463, PETRI_TRANSITIONS=1191} [2022-11-18 18:39:37,454 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 218 predicate places. [2022-11-18 18:39:37,454 INFO L495 AbstractCegarLoop]: Abstraction has has 463 places, 1191 transitions, 40408 flow [2022-11-18 18:39:37,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:37,455 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:39:37,455 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:37,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-18 18:39:37,456 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:39:37,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:37,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1389237111, now seen corresponding path program 16 times [2022-11-18 18:39:37,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:39:37,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346010075] [2022-11-18 18:39:37,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:37,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:39:37,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:39,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:39:39,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:39:39,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346010075] [2022-11-18 18:39:39,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346010075] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:39,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:39:39,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-18 18:39:39,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263025594] [2022-11-18 18:39:39,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:39,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:39:39,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:39:39,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:39:39,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:39:39,068 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-18 18:39:39,069 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 1191 transitions, 40408 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:39,070 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:39:39,070 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-18 18:39:39,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:39:45,593 INFO L130 PetriNetUnfolder]: 3765/7244 cut-off events. [2022-11-18 18:39:45,593 INFO L131 PetriNetUnfolder]: For 482700/482756 co-relation queries the response was YES. [2022-11-18 18:39:45,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93379 conditions, 7244 events. 3765/7244 cut-off events. For 482700/482756 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 52461 event pairs, 279 based on Foata normal form. 10/7227 useless extension candidates. Maximal degree in co-relation 93100. Up to 4240 conditions per place. [2022-11-18 18:39:45,694 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 663 selfloop transitions, 559 changer transitions 0/1333 dead transitions. [2022-11-18 18:39:45,694 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 1333 transitions, 46117 flow [2022-11-18 18:39:45,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 18:39:45,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-18 18:39:45,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2771 transitions. [2022-11-18 18:39:45,698 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5609311740890688 [2022-11-18 18:39:45,698 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2771 transitions. [2022-11-18 18:39:45,698 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2771 transitions. [2022-11-18 18:39:45,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:39:45,699 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2771 transitions. [2022-11-18 18:39:45,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.55) internal successors, (2771), 20 states have internal predecessors, (2771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:45,705 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:45,706 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:45,706 INFO L175 Difference]: Start difference. First operand has 463 places, 1191 transitions, 40408 flow. Second operand 20 states and 2771 transitions. [2022-11-18 18:39:45,706 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 1333 transitions, 46117 flow [2022-11-18 18:39:49,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 1333 transitions, 45886 flow, removed 80 selfloop flow, removed 9 redundant places. [2022-11-18 18:39:49,524 INFO L231 Difference]: Finished difference. Result has 479 places, 1244 transitions, 43972 flow [2022-11-18 18:39:49,524 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=40207, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=512, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=667, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=43972, PETRI_PLACES=479, PETRI_TRANSITIONS=1244} [2022-11-18 18:39:49,525 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 234 predicate places. [2022-11-18 18:39:49,525 INFO L495 AbstractCegarLoop]: Abstraction has has 479 places, 1244 transitions, 43972 flow [2022-11-18 18:39:49,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:49,525 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:39:49,525 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:39:49,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-18 18:39:49,526 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:39:49,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:39:49,526 INFO L85 PathProgramCache]: Analyzing trace with hash 540071919, now seen corresponding path program 17 times [2022-11-18 18:39:49,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:39:49,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599523511] [2022-11-18 18:39:49,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:39:49,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:39:49,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:39:50,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:39:50,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:39:50,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599523511] [2022-11-18 18:39:50,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599523511] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:39:50,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:39:50,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-18 18:39:50,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466597680] [2022-11-18 18:39:50,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:39:50,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:39:50,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:39:50,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:39:50,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:39:50,917 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-18 18:39:50,919 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 1244 transitions, 43972 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:50,919 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:39:50,919 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-18 18:39:50,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:39:57,513 INFO L130 PetriNetUnfolder]: 3854/7403 cut-off events. [2022-11-18 18:39:57,514 INFO L131 PetriNetUnfolder]: For 526859/526873 co-relation queries the response was YES. [2022-11-18 18:39:57,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98830 conditions, 7403 events. 3854/7403 cut-off events. For 526859/526873 co-relation queries the response was YES. Maximal size of possible extension queue 358. Compared 54100 event pairs, 241 based on Foata normal form. 14/7395 useless extension candidates. Maximal degree in co-relation 98545. Up to 4314 conditions per place. [2022-11-18 18:39:57,617 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 679 selfloop transitions, 582 changer transitions 0/1372 dead transitions. [2022-11-18 18:39:57,617 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 498 places, 1372 transitions, 49160 flow [2022-11-18 18:39:57,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 18:39:57,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-18 18:39:57,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2768 transitions. [2022-11-18 18:39:57,621 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5603238866396761 [2022-11-18 18:39:57,621 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2768 transitions. [2022-11-18 18:39:57,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2768 transitions. [2022-11-18 18:39:57,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:39:57,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2768 transitions. [2022-11-18 18:39:57,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.4) internal successors, (2768), 20 states have internal predecessors, (2768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:57,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:57,628 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:39:57,629 INFO L175 Difference]: Start difference. First operand has 479 places, 1244 transitions, 43972 flow. Second operand 20 states and 2768 transitions. [2022-11-18 18:39:57,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 498 places, 1372 transitions, 49160 flow [2022-11-18 18:40:01,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 486 places, 1372 transitions, 48680 flow, removed 162 selfloop flow, removed 12 redundant places. [2022-11-18 18:40:01,477 INFO L231 Difference]: Finished difference. Result has 493 places, 1283 transitions, 47063 flow [2022-11-18 18:40:01,478 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=43523, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=546, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=681, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=47063, PETRI_PLACES=493, PETRI_TRANSITIONS=1283} [2022-11-18 18:40:01,478 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 248 predicate places. [2022-11-18 18:40:01,478 INFO L495 AbstractCegarLoop]: Abstraction has has 493 places, 1283 transitions, 47063 flow [2022-11-18 18:40:01,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:40:01,479 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:40:01,479 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:40:01,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-18 18:40:01,479 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:40:01,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:40:01,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1889511119, now seen corresponding path program 18 times [2022-11-18 18:40:01,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:40:01,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780543005] [2022-11-18 18:40:01,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:40:01,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:40:01,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:02,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:40:02,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:40:02,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780543005] [2022-11-18 18:40:02,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780543005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:40:02,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:40:02,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-18 18:40:02,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620033113] [2022-11-18 18:40:02,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:40:02,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:40:02,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:40:02,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:40:02,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:40:02,911 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-18 18:40:02,913 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 493 places, 1283 transitions, 47063 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:40:02,913 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:40:02,913 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-18 18:40:02,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:40:10,635 INFO L130 PetriNetUnfolder]: 3894/7586 cut-off events. [2022-11-18 18:40:10,635 INFO L131 PetriNetUnfolder]: For 561977/562019 co-relation queries the response was YES. [2022-11-18 18:40:10,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103292 conditions, 7586 events. 3894/7586 cut-off events. For 561977/562019 co-relation queries the response was YES. Maximal size of possible extension queue 368. Compared 56015 event pairs, 535 based on Foata normal form. 8/7560 useless extension candidates. Maximal degree in co-relation 103000. Up to 4454 conditions per place. [2022-11-18 18:40:10,876 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 691 selfloop transitions, 586 changer transitions 0/1388 dead transitions. [2022-11-18 18:40:10,876 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 512 places, 1388 transitions, 51081 flow [2022-11-18 18:40:10,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 18:40:10,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-18 18:40:10,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2767 transitions. [2022-11-18 18:40:10,886 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5601214574898785 [2022-11-18 18:40:10,886 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2767 transitions. [2022-11-18 18:40:10,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2767 transitions. [2022-11-18 18:40:10,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:40:10,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2767 transitions. [2022-11-18 18:40:10,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.35) internal successors, (2767), 20 states have internal predecessors, (2767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:40:10,901 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:40:10,902 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:40:10,903 INFO L175 Difference]: Start difference. First operand has 493 places, 1283 transitions, 47063 flow. Second operand 20 states and 2767 transitions. [2022-11-18 18:40:10,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 512 places, 1388 transitions, 51081 flow [2022-11-18 18:40:15,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 501 places, 1388 transitions, 50796 flow, removed 92 selfloop flow, removed 11 redundant places. [2022-11-18 18:40:15,759 INFO L231 Difference]: Finished difference. Result has 505 places, 1299 transitions, 49278 flow [2022-11-18 18:40:15,760 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=46800, PETRI_DIFFERENCE_MINUEND_PLACES=482, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=573, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=704, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=49278, PETRI_PLACES=505, PETRI_TRANSITIONS=1299} [2022-11-18 18:40:15,761 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 260 predicate places. [2022-11-18 18:40:15,761 INFO L495 AbstractCegarLoop]: Abstraction has has 505 places, 1299 transitions, 49278 flow [2022-11-18 18:40:15,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:40:15,761 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:40:15,762 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:40:15,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-18 18:40:15,762 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:40:15,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:40:15,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1453306673, now seen corresponding path program 19 times [2022-11-18 18:40:15,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:40:15,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364252230] [2022-11-18 18:40:15,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:40:15,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:40:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:17,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:40:17,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:40:17,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364252230] [2022-11-18 18:40:17,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364252230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:40:17,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:40:17,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-18 18:40:17,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289951673] [2022-11-18 18:40:17,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:40:17,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:40:17,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:40:17,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:40:17,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:40:17,100 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-18 18:40:17,102 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 505 places, 1299 transitions, 49278 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:40:17,102 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:40:17,102 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-18 18:40:17,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:40:24,991 INFO L130 PetriNetUnfolder]: 3898/7509 cut-off events. [2022-11-18 18:40:24,991 INFO L131 PetriNetUnfolder]: For 609217/609273 co-relation queries the response was YES. [2022-11-18 18:40:25,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106197 conditions, 7509 events. 3898/7509 cut-off events. For 609217/609273 co-relation queries the response was YES. Maximal size of possible extension queue 362. Compared 55061 event pairs, 271 based on Foata normal form. 10/7491 useless extension candidates. Maximal degree in co-relation 105901. Up to 4472 conditions per place. [2022-11-18 18:40:25,143 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 702 selfloop transitions, 593 changer transitions 0/1406 dead transitions. [2022-11-18 18:40:25,143 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 524 places, 1406 transitions, 53627 flow [2022-11-18 18:40:25,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 18:40:25,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-18 18:40:25,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2769 transitions. [2022-11-18 18:40:25,148 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5605263157894737 [2022-11-18 18:40:25,149 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2769 transitions. [2022-11-18 18:40:25,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2769 transitions. [2022-11-18 18:40:25,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:40:25,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2769 transitions. [2022-11-18 18:40:25,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.45) internal successors, (2769), 20 states have internal predecessors, (2769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:40:25,161 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:40:25,162 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:40:25,162 INFO L175 Difference]: Start difference. First operand has 505 places, 1299 transitions, 49278 flow. Second operand 20 states and 2769 transitions. [2022-11-18 18:40:25,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 524 places, 1406 transitions, 53627 flow [2022-11-18 18:40:30,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 511 places, 1406 transitions, 53114 flow, removed 157 selfloop flow, removed 13 redundant places. [2022-11-18 18:40:30,319 INFO L231 Difference]: Finished difference. Result has 516 places, 1324 transitions, 51333 flow [2022-11-18 18:40:30,320 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=48858, PETRI_DIFFERENCE_MINUEND_PLACES=492, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=573, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=716, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=51333, PETRI_PLACES=516, PETRI_TRANSITIONS=1324} [2022-11-18 18:40:30,320 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 271 predicate places. [2022-11-18 18:40:30,320 INFO L495 AbstractCegarLoop]: Abstraction has has 516 places, 1324 transitions, 51333 flow [2022-11-18 18:40:30,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:40:30,321 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:40:30,321 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:40:30,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-18 18:40:30,321 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:40:30,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:40:30,322 INFO L85 PathProgramCache]: Analyzing trace with hash -304435319, now seen corresponding path program 20 times [2022-11-18 18:40:30,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:40:30,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202413462] [2022-11-18 18:40:30,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:40:30,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:40:30,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:31,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:40:31,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:40:31,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202413462] [2022-11-18 18:40:31,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202413462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:40:31,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:40:31,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-18 18:40:31,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060454213] [2022-11-18 18:40:31,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:40:31,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:40:31,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:40:31,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:40:31,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:40:31,620 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-18 18:40:31,621 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 516 places, 1324 transitions, 51333 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:40:31,621 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:40:31,621 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-18 18:40:31,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:40:39,035 INFO L130 PetriNetUnfolder]: 3944/7687 cut-off events. [2022-11-18 18:40:39,035 INFO L131 PetriNetUnfolder]: For 637167/637209 co-relation queries the response was YES. [2022-11-18 18:40:39,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110121 conditions, 7687 events. 3944/7687 cut-off events. For 637167/637209 co-relation queries the response was YES. Maximal size of possible extension queue 374. Compared 56993 event pairs, 617 based on Foata normal form. 8/7661 useless extension candidates. Maximal degree in co-relation 109820. Up to 4532 conditions per place. [2022-11-18 18:40:39,176 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 711 selfloop transitions, 599 changer transitions 0/1421 dead transitions. [2022-11-18 18:40:39,176 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 534 places, 1421 transitions, 55619 flow [2022-11-18 18:40:39,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-18 18:40:39,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-18 18:40:39,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2631 transitions. [2022-11-18 18:40:39,181 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.560622203281483 [2022-11-18 18:40:39,181 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2631 transitions. [2022-11-18 18:40:39,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2631 transitions. [2022-11-18 18:40:39,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:40:39,183 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2631 transitions. [2022-11-18 18:40:39,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 138.47368421052633) internal successors, (2631), 19 states have internal predecessors, (2631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:40:39,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:40:39,194 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:40:39,195 INFO L175 Difference]: Start difference. First operand has 516 places, 1324 transitions, 51333 flow. Second operand 19 states and 2631 transitions. [2022-11-18 18:40:39,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 534 places, 1421 transitions, 55619 flow [2022-11-18 18:40:44,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 522 places, 1421 transitions, 55294 flow, removed 61 selfloop flow, removed 12 redundant places. [2022-11-18 18:40:44,952 INFO L231 Difference]: Finished difference. Result has 527 places, 1343 transitions, 53966 flow [2022-11-18 18:40:44,958 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=51014, PETRI_DIFFERENCE_MINUEND_PLACES=504, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=580, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=732, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=53966, PETRI_PLACES=527, PETRI_TRANSITIONS=1343} [2022-11-18 18:40:44,959 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 282 predicate places. [2022-11-18 18:40:44,959 INFO L495 AbstractCegarLoop]: Abstraction has has 527 places, 1343 transitions, 53966 flow [2022-11-18 18:40:44,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:40:44,960 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:40:44,960 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:40:44,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-18 18:40:44,960 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:40:44,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:40:44,961 INFO L85 PathProgramCache]: Analyzing trace with hash 328509563, now seen corresponding path program 21 times [2022-11-18 18:40:44,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:40:44,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575810955] [2022-11-18 18:40:44,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:40:44,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:40:44,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:40:46,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:40:46,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:40:46,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575810955] [2022-11-18 18:40:46,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575810955] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:40:46,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:40:46,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-18 18:40:46,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622293252] [2022-11-18 18:40:46,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:40:46,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:40:46,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:40:46,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:40:46,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:40:46,312 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-18 18:40:46,314 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 527 places, 1343 transitions, 53966 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:40:46,315 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:40:46,315 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-18 18:40:46,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:40:53,831 INFO L130 PetriNetUnfolder]: 3948/7597 cut-off events. [2022-11-18 18:40:53,831 INFO L131 PetriNetUnfolder]: For 689096/689110 co-relation queries the response was YES. [2022-11-18 18:40:53,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113258 conditions, 7597 events. 3948/7597 cut-off events. For 689096/689110 co-relation queries the response was YES. Maximal size of possible extension queue 369. Compared 56094 event pairs, 253 based on Foata normal form. 14/7588 useless extension candidates. Maximal degree in co-relation 112952. Up to 4502 conditions per place. [2022-11-18 18:40:53,972 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 716 selfloop transitions, 615 changer transitions 0/1442 dead transitions. [2022-11-18 18:40:53,972 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 546 places, 1442 transitions, 58263 flow [2022-11-18 18:40:53,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 18:40:53,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-18 18:40:53,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2766 transitions. [2022-11-18 18:40:53,977 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.559919028340081 [2022-11-18 18:40:53,977 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2766 transitions. [2022-11-18 18:40:53,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2766 transitions. [2022-11-18 18:40:53,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:40:53,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2766 transitions. [2022-11-18 18:40:53,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.3) internal successors, (2766), 20 states have internal predecessors, (2766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:40:53,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:40:53,988 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:40:53,988 INFO L175 Difference]: Start difference. First operand has 527 places, 1343 transitions, 53966 flow. Second operand 20 states and 2766 transitions. [2022-11-18 18:40:53,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 546 places, 1442 transitions, 58263 flow [2022-11-18 18:40:59,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 534 places, 1442 transitions, 57570 flow, removed 246 selfloop flow, removed 12 redundant places. [2022-11-18 18:40:59,759 INFO L231 Difference]: Finished difference. Result has 538 places, 1363 transitions, 55767 flow [2022-11-18 18:40:59,760 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=53397, PETRI_DIFFERENCE_MINUEND_PLACES=515, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=598, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=737, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=55767, PETRI_PLACES=538, PETRI_TRANSITIONS=1363} [2022-11-18 18:40:59,760 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 293 predicate places. [2022-11-18 18:40:59,761 INFO L495 AbstractCegarLoop]: Abstraction has has 538 places, 1363 transitions, 55767 flow [2022-11-18 18:40:59,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:40:59,761 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:40:59,761 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:40:59,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-18 18:40:59,762 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:40:59,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:40:59,762 INFO L85 PathProgramCache]: Analyzing trace with hash -962838995, now seen corresponding path program 22 times [2022-11-18 18:40:59,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:40:59,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195224631] [2022-11-18 18:40:59,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:40:59,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:40:59,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:01,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:41:01,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:41:01,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195224631] [2022-11-18 18:41:01,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195224631] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:41:01,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:41:01,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-18 18:41:01,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097980796] [2022-11-18 18:41:01,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:41:01,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:41:01,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:41:01,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:41:01,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:41:01,172 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-18 18:41:01,173 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 538 places, 1363 transitions, 55767 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:41:01,173 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:41:01,174 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-18 18:41:01,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:41:09,780 INFO L130 PetriNetUnfolder]: 4148/7972 cut-off events. [2022-11-18 18:41:09,781 INFO L131 PetriNetUnfolder]: For 748059/748073 co-relation queries the response was YES. [2022-11-18 18:41:09,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121345 conditions, 7972 events. 4148/7972 cut-off events. For 748059/748073 co-relation queries the response was YES. Maximal size of possible extension queue 395. Compared 59384 event pairs, 477 based on Foata normal form. 11/7958 useless extension candidates. Maximal degree in co-relation 121035. Up to 4513 conditions per place. [2022-11-18 18:41:09,898 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 671 selfloop transitions, 728 changer transitions 0/1510 dead transitions. [2022-11-18 18:41:09,898 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 557 places, 1510 transitions, 62574 flow [2022-11-18 18:41:09,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 18:41:09,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-18 18:41:09,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2775 transitions. [2022-11-18 18:41:09,902 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5617408906882592 [2022-11-18 18:41:09,902 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2775 transitions. [2022-11-18 18:41:09,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2775 transitions. [2022-11-18 18:41:09,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:41:09,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2775 transitions. [2022-11-18 18:41:09,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.75) internal successors, (2775), 20 states have internal predecessors, (2775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:41:09,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:41:09,911 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:41:09,911 INFO L175 Difference]: Start difference. First operand has 538 places, 1363 transitions, 55767 flow. Second operand 20 states and 2775 transitions. [2022-11-18 18:41:09,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 557 places, 1510 transitions, 62574 flow [2022-11-18 18:41:16,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 1510 transitions, 62306 flow, removed 27 selfloop flow, removed 13 redundant places. [2022-11-18 18:41:16,374 INFO L231 Difference]: Finished difference. Result has 553 places, 1436 transitions, 61465 flow [2022-11-18 18:41:16,375 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=55499, PETRI_DIFFERENCE_MINUEND_PLACES=525, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1363, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=662, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=685, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=61465, PETRI_PLACES=553, PETRI_TRANSITIONS=1436} [2022-11-18 18:41:16,376 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 308 predicate places. [2022-11-18 18:41:16,376 INFO L495 AbstractCegarLoop]: Abstraction has has 553 places, 1436 transitions, 61465 flow [2022-11-18 18:41:16,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:41:16,377 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:41:16,377 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:41:16,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-18 18:41:16,377 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:41:16,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:16,378 INFO L85 PathProgramCache]: Analyzing trace with hash 747870101, now seen corresponding path program 23 times [2022-11-18 18:41:16,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:41:16,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410450184] [2022-11-18 18:41:16,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:16,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:41:16,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:17,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:41:17,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:41:17,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410450184] [2022-11-18 18:41:17,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410450184] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:41:17,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:41:17,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-18 18:41:17,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375526066] [2022-11-18 18:41:17,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:41:17,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:41:17,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:41:17,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:41:17,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:41:17,546 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-18 18:41:17,547 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 553 places, 1436 transitions, 61465 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:41:17,547 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:41:17,548 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-18 18:41:17,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:41:26,122 INFO L130 PetriNetUnfolder]: 4194/8053 cut-off events. [2022-11-18 18:41:26,123 INFO L131 PetriNetUnfolder]: For 827399/827455 co-relation queries the response was YES. [2022-11-18 18:41:26,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126879 conditions, 8053 events. 4194/8053 cut-off events. For 827399/827455 co-relation queries the response was YES. Maximal size of possible extension queue 397. Compared 59670 event pairs, 653 based on Foata normal form. 8/8029 useless extension candidates. Maximal degree in co-relation 126560. Up to 4535 conditions per place. [2022-11-18 18:41:26,316 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 668 selfloop transitions, 750 changer transitions 0/1529 dead transitions. [2022-11-18 18:41:26,316 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 571 places, 1529 transitions, 66095 flow [2022-11-18 18:41:26,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-18 18:41:26,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-18 18:41:26,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2631 transitions. [2022-11-18 18:41:26,321 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.560622203281483 [2022-11-18 18:41:26,321 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2631 transitions. [2022-11-18 18:41:26,321 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2631 transitions. [2022-11-18 18:41:26,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:41:26,323 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2631 transitions. [2022-11-18 18:41:26,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 138.47368421052633) internal successors, (2631), 19 states have internal predecessors, (2631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:41:26,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:41:26,333 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:41:26,333 INFO L175 Difference]: Start difference. First operand has 553 places, 1436 transitions, 61465 flow. Second operand 19 states and 2631 transitions. [2022-11-18 18:41:26,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 571 places, 1529 transitions, 66095 flow [2022-11-18 18:41:33,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 561 places, 1529 transitions, 65358 flow, removed 253 selfloop flow, removed 10 redundant places. [2022-11-18 18:41:33,433 INFO L231 Difference]: Finished difference. Result has 567 places, 1458 transitions, 64415 flow [2022-11-18 18:41:33,434 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=60761, PETRI_DIFFERENCE_MINUEND_PLACES=543, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=728, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=695, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=64415, PETRI_PLACES=567, PETRI_TRANSITIONS=1458} [2022-11-18 18:41:33,435 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 322 predicate places. [2022-11-18 18:41:33,435 INFO L495 AbstractCegarLoop]: Abstraction has has 567 places, 1458 transitions, 64415 flow [2022-11-18 18:41:33,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:41:33,435 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:41:33,435 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:41:33,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-18 18:41:33,436 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:41:33,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:33,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1780444621, now seen corresponding path program 24 times [2022-11-18 18:41:33,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:41:33,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381850589] [2022-11-18 18:41:33,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:33,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:41:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:34,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:41:34,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:41:34,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381850589] [2022-11-18 18:41:34,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381850589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:41:34,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:41:34,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-18 18:41:34,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597815351] [2022-11-18 18:41:34,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:41:34,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:41:34,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:41:34,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:41:34,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:41:34,649 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-18 18:41:34,651 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 567 places, 1458 transitions, 64415 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:41:34,651 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:41:34,651 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-18 18:41:34,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:41:43,243 INFO L130 PetriNetUnfolder]: 4262/8194 cut-off events. [2022-11-18 18:41:43,243 INFO L131 PetriNetUnfolder]: For 900178/900192 co-relation queries the response was YES. [2022-11-18 18:41:43,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132391 conditions, 8194 events. 4262/8194 cut-off events. For 900178/900192 co-relation queries the response was YES. Maximal size of possible extension queue 406. Compared 61327 event pairs, 485 based on Foata normal form. 11/8179 useless extension candidates. Maximal degree in co-relation 132066. Up to 4661 conditions per place. [2022-11-18 18:41:43,411 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 693 selfloop transitions, 754 changer transitions 0/1558 dead transitions. [2022-11-18 18:41:43,411 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 584 places, 1558 transitions, 69614 flow [2022-11-18 18:41:43,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 18:41:43,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-18 18:41:43,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2503 transitions. [2022-11-18 18:41:43,415 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5629779577147999 [2022-11-18 18:41:43,415 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2503 transitions. [2022-11-18 18:41:43,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2503 transitions. [2022-11-18 18:41:43,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:41:43,416 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2503 transitions. [2022-11-18 18:41:43,419 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 139.05555555555554) internal successors, (2503), 18 states have internal predecessors, (2503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:41:43,422 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:41:43,422 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 247.0) internal successors, (4693), 19 states have internal predecessors, (4693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:41:43,423 INFO L175 Difference]: Start difference. First operand has 567 places, 1458 transitions, 64415 flow. Second operand 18 states and 2503 transitions. [2022-11-18 18:41:43,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 584 places, 1558 transitions, 69614 flow [2022-11-18 18:41:51,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 573 places, 1558 transitions, 69242 flow, removed 57 selfloop flow, removed 11 redundant places. [2022-11-18 18:41:51,143 INFO L231 Difference]: Finished difference. Result has 579 places, 1489 transitions, 68303 flow [2022-11-18 18:41:51,144 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=64045, PETRI_DIFFERENCE_MINUEND_PLACES=556, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1458, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=723, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=717, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=68303, PETRI_PLACES=579, PETRI_TRANSITIONS=1489} [2022-11-18 18:41:51,145 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 334 predicate places. [2022-11-18 18:41:51,145 INFO L495 AbstractCegarLoop]: Abstraction has has 579 places, 1489 transitions, 68303 flow [2022-11-18 18:41:51,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:41:51,145 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:41:51,146 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:41:51,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-18 18:41:51,146 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:41:51,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:41:51,146 INFO L85 PathProgramCache]: Analyzing trace with hash -2009827367, now seen corresponding path program 25 times [2022-11-18 18:41:51,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:41:51,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558927177] [2022-11-18 18:41:51,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:41:51,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:41:51,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:41:52,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:41:52,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:41:52,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558927177] [2022-11-18 18:41:52,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558927177] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:41:52,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:41:52,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-18 18:41:52,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584115964] [2022-11-18 18:41:52,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:41:52,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:41:52,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:41:52,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:41:52,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:41:52,458 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-18 18:41:52,460 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 579 places, 1489 transitions, 68303 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:41:52,460 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:41:52,460 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-18 18:41:52,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:42:01,451 INFO L130 PetriNetUnfolder]: 4323/8319 cut-off events. [2022-11-18 18:42:01,452 INFO L131 PetriNetUnfolder]: For 979666/979680 co-relation queries the response was YES. [2022-11-18 18:42:01,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138195 conditions, 8319 events. 4323/8319 cut-off events. For 979666/979680 co-relation queries the response was YES. Maximal size of possible extension queue 413. Compared 62534 event pairs, 489 based on Foata normal form. 11/8304 useless extension candidates. Maximal degree in co-relation 137864. Up to 4703 conditions per place. [2022-11-18 18:42:01,597 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 698 selfloop transitions, 780 changer transitions 0/1589 dead transitions. [2022-11-18 18:42:01,597 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 598 places, 1589 transitions, 73447 flow [2022-11-18 18:42:01,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 18:42:01,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-18 18:42:01,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2770 transitions. [2022-11-18 18:42:01,602 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5607287449392713 [2022-11-18 18:42:01,602 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2770 transitions. [2022-11-18 18:42:01,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2770 transitions. [2022-11-18 18:42:01,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:42:01,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2770 transitions. [2022-11-18 18:42:01,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 138.5) internal successors, (2770), 20 states have internal predecessors, (2770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:42:01,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:42:01,613 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 247.0) internal successors, (5187), 21 states have internal predecessors, (5187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:42:01,614 INFO L175 Difference]: Start difference. First operand has 579 places, 1489 transitions, 68303 flow. Second operand 20 states and 2770 transitions. [2022-11-18 18:42:01,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 598 places, 1589 transitions, 73447 flow [2022-11-18 18:42:10,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 588 places, 1589 transitions, 73057 flow, removed 63 selfloop flow, removed 10 redundant places. [2022-11-18 18:42:10,975 INFO L231 Difference]: Finished difference. Result has 595 places, 1520 transitions, 72278 flow [2022-11-18 18:42:10,976 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=67947, PETRI_DIFFERENCE_MINUEND_PLACES=569, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1489, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=752, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=724, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=72278, PETRI_PLACES=595, PETRI_TRANSITIONS=1520} [2022-11-18 18:42:10,977 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 350 predicate places. [2022-11-18 18:42:10,977 INFO L495 AbstractCegarLoop]: Abstraction has has 595 places, 1520 transitions, 72278 flow [2022-11-18 18:42:10,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:42:10,977 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:42:10,977 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:42:10,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-18 18:42:10,977 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:42:10,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:10,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1657019751, now seen corresponding path program 26 times [2022-11-18 18:42:10,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:42:10,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225150010] [2022-11-18 18:42:10,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:10,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:42:11,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:12,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:42:12,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:42:12,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225150010] [2022-11-18 18:42:12,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225150010] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:42:12,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:42:12,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-18 18:42:12,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145006279] [2022-11-18 18:42:12,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:42:12,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:42:12,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:42:12,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:42:12,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:42:12,374 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-18 18:42:12,375 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 595 places, 1520 transitions, 72278 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:42:12,375 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:42:12,375 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-18 18:42:12,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:42:22,679 INFO L130 PetriNetUnfolder]: 4432/8531 cut-off events. [2022-11-18 18:42:22,679 INFO L131 PetriNetUnfolder]: For 1075251/1075307 co-relation queries the response was YES. [2022-11-18 18:42:22,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146093 conditions, 8531 events. 4432/8531 cut-off events. For 1075251/1075307 co-relation queries the response was YES. Maximal size of possible extension queue 427. Compared 64188 event pairs, 649 based on Foata normal form. 8/8506 useless extension candidates. Maximal degree in co-relation 145755. Up to 4835 conditions per place. [2022-11-18 18:42:22,879 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 725 selfloop transitions, 803 changer transitions 0/1639 dead transitions. [2022-11-18 18:42:22,879 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 613 places, 1639 transitions, 78618 flow [2022-11-18 18:42:22,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-18 18:42:22,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-18 18:42:22,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2641 transitions. [2022-11-18 18:42:22,882 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.562753036437247 [2022-11-18 18:42:22,882 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2641 transitions. [2022-11-18 18:42:22,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2641 transitions. [2022-11-18 18:42:22,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:42:22,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2641 transitions. [2022-11-18 18:42:22,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 139.0) internal successors, (2641), 19 states have internal predecessors, (2641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:42:22,889 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:42:22,890 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 247.0) internal successors, (4940), 20 states have internal predecessors, (4940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:42:22,890 INFO L175 Difference]: Start difference. First operand has 595 places, 1520 transitions, 72278 flow. Second operand 19 states and 2641 transitions. [2022-11-18 18:42:22,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 613 places, 1639 transitions, 78618 flow [2022-11-18 18:42:32,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 604 places, 1639 transitions, 78419 flow, removed 76 selfloop flow, removed 9 redundant places. [2022-11-18 18:42:32,469 INFO L231 Difference]: Finished difference. Result has 609 places, 1561 transitions, 77159 flow [2022-11-18 18:42:32,470 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=72079, PETRI_DIFFERENCE_MINUEND_PLACES=586, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1520, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=764, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=742, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=77159, PETRI_PLACES=609, PETRI_TRANSITIONS=1561} [2022-11-18 18:42:32,470 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 364 predicate places. [2022-11-18 18:42:32,470 INFO L495 AbstractCegarLoop]: Abstraction has has 609 places, 1561 transitions, 77159 flow [2022-11-18 18:42:32,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:42:32,471 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:42:32,471 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:42:32,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-18 18:42:32,471 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2022-11-18 18:42:32,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:42:32,472 INFO L85 PathProgramCache]: Analyzing trace with hash 421283661, now seen corresponding path program 27 times [2022-11-18 18:42:32,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:42:32,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677205924] [2022-11-18 18:42:32,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:42:32,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:42:32,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:42:33,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:42:33,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:42:33,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677205924] [2022-11-18 18:42:33,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677205924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:42:33,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:42:33,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-18 18:42:33,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222331937] [2022-11-18 18:42:33,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:42:33,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 18:42:33,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:42:33,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 18:42:33,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:42:33,910 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-18 18:42:33,912 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 609 places, 1561 transitions, 77159 flow. Second operand has 18 states, 18 states have (on average 129.11111111111111) internal successors, (2324), 18 states have internal predecessors, (2324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:42:33,912 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:42:33,912 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-18 18:42:33,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand