./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 e04fb08f 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_7bcc00ba-2398-42c5-8ff8-3390506113d0/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bcc00ba-2398-42c5-8ff8-3390506113d0/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bcc00ba-2398-42c5-8ff8-3390506113d0/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bcc00ba-2398-42c5-8ff8-3390506113d0/bin/uautomizer-tPACEb0tL8/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_7bcc00ba-2398-42c5-8ff8-3390506113d0/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bcc00ba-2398-42c5-8ff8-3390506113d0/bin/uautomizer-tPACEb0tL8 --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-e04fb08 [2022-11-16 12:27:16,660 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:27:16,663 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:27:16,699 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:27:16,700 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:27:16,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:27:16,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:27:16,713 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:27:16,717 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:27:16,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:27:16,728 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:27:16,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:27:16,732 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:27:16,735 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:27:16,739 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:27:16,741 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:27:16,744 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:27:16,745 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:27:16,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:27:16,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:27:16,762 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:27:16,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:27:16,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:27:16,768 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:27:16,778 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:27:16,780 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:27:16,781 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:27:16,782 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:27:16,784 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:27:16,785 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:27:16,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:27:16,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:27:16,789 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:27:16,791 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:27:16,793 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:27:16,794 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:27:16,796 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:27:16,796 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:27:16,796 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:27:16,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:27:16,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:27:16,800 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bcc00ba-2398-42c5-8ff8-3390506113d0/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:27:16,848 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:27:16,851 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:27:16,852 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:27:16,852 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:27:16,853 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:27:16,854 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:27:16,854 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:27:16,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:27:16,855 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:27:16,855 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:27:16,857 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:27:16,857 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:27:16,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:27:16,858 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:27:16,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:27:16,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:27:16,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:27:16,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:27:16,859 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:27:16,859 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:27:16,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:27:16,860 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:27:16,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:27:16,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:27:16,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:27:16,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:27:16,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:27:16,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:27:16,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:27:16,862 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:27:16,862 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:27:16,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:27:16,863 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:27:16,863 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:27:16,864 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:27:16,864 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_7bcc00ba-2398-42c5-8ff8-3390506113d0/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bcc00ba-2398-42c5-8ff8-3390506113d0/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c62a6a6ca02e763ce9adebe2a1f0301f133cb0abc0bbd9fb473585b57a9c78f2 [2022-11-16 12:27:17,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:27:17,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:27:17,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:27:17,251 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:27:17,253 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:27:17,254 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bcc00ba-2398-42c5-8ff8-3390506113d0/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2022-11-16 12:27:17,364 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bcc00ba-2398-42c5-8ff8-3390506113d0/bin/uautomizer-tPACEb0tL8/data/69d4c9d0b/5a63b35384fc437eaeaf62e87839a8f0/FLAG76b76a247 [2022-11-16 12:27:18,078 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:27:18,079 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bcc00ba-2398-42c5-8ff8-3390506113d0/sv-benchmarks/c/ldv-races/race-2_5-container_of.i [2022-11-16 12:27:18,128 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bcc00ba-2398-42c5-8ff8-3390506113d0/bin/uautomizer-tPACEb0tL8/data/69d4c9d0b/5a63b35384fc437eaeaf62e87839a8f0/FLAG76b76a247 [2022-11-16 12:27:18,262 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bcc00ba-2398-42c5-8ff8-3390506113d0/bin/uautomizer-tPACEb0tL8/data/69d4c9d0b/5a63b35384fc437eaeaf62e87839a8f0 [2022-11-16 12:27:18,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:27:18,269 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:27:18,274 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:27:18,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:27:18,278 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:27:18,279 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:27:18" (1/1) ... [2022-11-16 12:27:18,282 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74eb62ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:18, skipping insertion in model container [2022-11-16 12:27:18,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:27:18" (1/1) ... [2022-11-16 12:27:18,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:27:18,386 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:27:18,630 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 12:27:19,249 WARN L229 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_7bcc00ba-2398-42c5-8ff8-3390506113d0/sv-benchmarks/c/ldv-races/race-2_5-container_of.i[75002,75015] [2022-11-16 12:27:19,301 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:27:19,311 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:27:19,326 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 12:27:19,362 WARN L229 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_7bcc00ba-2398-42c5-8ff8-3390506113d0/sv-benchmarks/c/ldv-races/race-2_5-container_of.i[75002,75015] [2022-11-16 12:27:19,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:27:19,542 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:27:19,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:19 WrapperNode [2022-11-16 12:27:19,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:27:19,544 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:27:19,544 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:27:19,545 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:27:19,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:19" (1/1) ... [2022-11-16 12:27:19,596 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:19" (1/1) ... [2022-11-16 12:27:19,651 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 225 [2022-11-16 12:27:19,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:27:19,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:27:19,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:27:19,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:27:19,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:19" (1/1) ... [2022-11-16 12:27:19,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:19" (1/1) ... [2022-11-16 12:27:19,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:19" (1/1) ... [2022-11-16 12:27:19,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:19" (1/1) ... [2022-11-16 12:27:19,725 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:19" (1/1) ... [2022-11-16 12:27:19,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:19" (1/1) ... [2022-11-16 12:27:19,735 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:19" (1/1) ... [2022-11-16 12:27:19,738 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:19" (1/1) ... [2022-11-16 12:27:19,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:27:19,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:27:19,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:27:19,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:27:19,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:19" (1/1) ... [2022-11-16 12:27:19,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:27:19,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bcc00ba-2398-42c5-8ff8-3390506113d0/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:27:19,808 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bcc00ba-2398-42c5-8ff8-3390506113d0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:27:19,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bcc00ba-2398-42c5-8ff8-3390506113d0/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:27:19,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 12:27:19,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:27:19,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 12:27:19,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:27:19,883 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 12:27:19,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:27:19,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:27:19,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:27:19,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:27:19,884 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2022-11-16 12:27:19,884 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2022-11-16 12:27:19,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:27:19,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:27:19,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:27:19,887 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:27:20,413 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:27:20,415 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:27:21,068 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:27:21,267 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:27:21,268 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:27:21,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:27:21 BoogieIcfgContainer [2022-11-16 12:27:21,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:27:21,273 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:27:21,273 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:27:21,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:27:21,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:27:18" (1/3) ... [2022-11-16 12:27:21,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d452677 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:27:21, skipping insertion in model container [2022-11-16 12:27:21,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:27:19" (2/3) ... [2022-11-16 12:27:21,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d452677 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:27:21, skipping insertion in model container [2022-11-16 12:27:21,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:27:21" (3/3) ... [2022-11-16 12:27:21,282 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_5-container_of.i [2022-11-16 12:27:21,292 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:27:21,305 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:27:21,305 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2022-11-16 12:27:21,305 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:27:21,426 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 12:27:21,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 247 places, 247 transitions, 510 flow [2022-11-16 12:27:21,733 INFO L130 PetriNetUnfolder]: 8/324 cut-off events. [2022-11-16 12:27:21,733 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 12:27:21,741 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. [2022-11-16 12:27:21,741 INFO L82 GeneralOperation]: Start removeDead. Operand has 247 places, 247 transitions, 510 flow [2022-11-16 12:27:21,761 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 245 places, 244 transitions, 500 flow [2022-11-16 12:27:21,781 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:27:21,790 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;@43a458bf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:27:21,790 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-16 12:27:21,802 INFO L130 PetriNetUnfolder]: 0/42 cut-off events. [2022-11-16 12:27:21,802 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:27:21,803 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:21,803 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] [2022-11-16 12:27:21,804 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)] === [2022-11-16 12:27:21,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:21,811 INFO L85 PathProgramCache]: Analyzing trace with hash 2121246416, now seen corresponding path program 1 times [2022-11-16 12:27:21,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:21,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142260125] [2022-11-16 12:27:21,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:21,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:22,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:23,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:23,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:23,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142260125] [2022-11-16 12:27:23,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142260125] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:23,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:23,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:27:23,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852720075] [2022-11-16 12:27:23,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:23,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:27:23,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:23,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:27:23,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:27:23,175 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 247 [2022-11-16 12:27:23,181 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) [2022-11-16 12:27:23,181 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:23,182 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 247 [2022-11-16 12:27:23,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:24,336 INFO L130 PetriNetUnfolder]: 766/2163 cut-off events. [2022-11-16 12:27:24,337 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-16 12:27:24,349 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. [2022-11-16 12:27:24,362 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 75 selfloop transitions, 5 changer transitions 17/225 dead transitions. [2022-11-16 12:27:24,362 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 225 transitions, 624 flow [2022-11-16 12:27:24,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:27:24,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:27:24,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 978 transitions. [2022-11-16 12:27:24,397 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.659919028340081 [2022-11-16 12:27:24,398 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 978 transitions. [2022-11-16 12:27:24,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 978 transitions. [2022-11-16 12:27:24,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:24,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 978 transitions. [2022-11-16 12:27:24,416 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) [2022-11-16 12:27:24,428 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) [2022-11-16 12:27:24,429 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) [2022-11-16 12:27:24,431 INFO L175 Difference]: Start difference. First operand has 245 places, 244 transitions, 500 flow. Second operand 6 states and 978 transitions. [2022-11-16 12:27:24,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 225 transitions, 624 flow [2022-11-16 12:27:24,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 225 transitions, 616 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 12:27:24,449 INFO L231 Difference]: Finished difference. Result has 231 places, 208 transitions, 430 flow [2022-11-16 12:27:24,452 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} [2022-11-16 12:27:24,459 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -14 predicate places. [2022-11-16 12:27:24,460 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 208 transitions, 430 flow [2022-11-16 12:27:24,461 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) [2022-11-16 12:27:24,461 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:24,462 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] [2022-11-16 12:27:24,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:27:24,463 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)] === [2022-11-16 12:27:24,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:24,464 INFO L85 PathProgramCache]: Analyzing trace with hash -140736374, now seen corresponding path program 1 times [2022-11-16 12:27:24,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:24,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969935877] [2022-11-16 12:27:24,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:24,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:24,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:25,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:25,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:25,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969935877] [2022-11-16 12:27:25,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969935877] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:25,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:25,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:27:25,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345667791] [2022-11-16 12:27:25,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:25,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:27:25,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:25,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:27:25,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:27:25,175 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 247 [2022-11-16 12:27:25,176 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) [2022-11-16 12:27:25,177 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:25,177 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 247 [2022-11-16 12:27:25,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:26,097 INFO L130 PetriNetUnfolder]: 742/1881 cut-off events. [2022-11-16 12:27:26,097 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 12:27:26,101 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. [2022-11-16 12:27:26,111 INFO L137 encePairwiseOnDemand]: 241/247 looper letters, 74 selfloop transitions, 5 changer transitions 0/207 dead transitions. [2022-11-16 12:27:26,112 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 207 transitions, 586 flow [2022-11-16 12:27:26,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:27:26,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:27:26,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 962 transitions. [2022-11-16 12:27:26,116 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6491228070175439 [2022-11-16 12:27:26,116 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 962 transitions. [2022-11-16 12:27:26,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 962 transitions. [2022-11-16 12:27:26,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:26,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 962 transitions. [2022-11-16 12:27:26,120 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) [2022-11-16 12:27:26,124 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) [2022-11-16 12:27:26,125 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) [2022-11-16 12:27:26,125 INFO L175 Difference]: Start difference. First operand has 231 places, 208 transitions, 430 flow. Second operand 6 states and 962 transitions. [2022-11-16 12:27:26,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 207 transitions, 586 flow [2022-11-16 12:27:26,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 207 transitions, 576 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:27:26,138 INFO L231 Difference]: Finished difference. Result has 213 places, 207 transitions, 428 flow [2022-11-16 12:27:26,139 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} [2022-11-16 12:27:26,140 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -32 predicate places. [2022-11-16 12:27:26,140 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 207 transitions, 428 flow [2022-11-16 12:27:26,141 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) [2022-11-16 12:27:26,142 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:26,142 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] [2022-11-16 12:27:26,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:27:26,142 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)] === [2022-11-16 12:27:26,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:26,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1153358172, now seen corresponding path program 1 times [2022-11-16 12:27:26,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:26,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979806810] [2022-11-16 12:27:26,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:26,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:26,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:26,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:26,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:26,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979806810] [2022-11-16 12:27:26,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979806810] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:26,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:26,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:27:26,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256744911] [2022-11-16 12:27:26,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:26,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:27:26,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:26,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:27:26,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:27:26,886 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 247 [2022-11-16 12:27:26,888 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) [2022-11-16 12:27:26,888 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:26,888 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 247 [2022-11-16 12:27:26,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:28,109 INFO L130 PetriNetUnfolder]: 1018/2384 cut-off events. [2022-11-16 12:27:28,109 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 12:27:28,115 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. [2022-11-16 12:27:28,127 INFO L137 encePairwiseOnDemand]: 234/247 looper letters, 82 selfloop transitions, 30 changer transitions 0/236 dead transitions. [2022-11-16 12:27:28,127 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 236 transitions, 710 flow [2022-11-16 12:27:28,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:27:28,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:27:28,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 959 transitions. [2022-11-16 12:27:28,131 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6470985155195681 [2022-11-16 12:27:28,131 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 959 transitions. [2022-11-16 12:27:28,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 959 transitions. [2022-11-16 12:27:28,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:28,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 959 transitions. [2022-11-16 12:27:28,135 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) [2022-11-16 12:27:28,139 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) [2022-11-16 12:27:28,140 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) [2022-11-16 12:27:28,140 INFO L175 Difference]: Start difference. First operand has 213 places, 207 transitions, 428 flow. Second operand 6 states and 959 transitions. [2022-11-16 12:27:28,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 236 transitions, 710 flow [2022-11-16 12:27:28,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 236 transitions, 700 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 12:27:28,147 INFO L231 Difference]: Finished difference. Result has 218 places, 236 transitions, 620 flow [2022-11-16 12:27:28,148 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} [2022-11-16 12:27:28,149 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -27 predicate places. [2022-11-16 12:27:28,149 INFO L495 AbstractCegarLoop]: Abstraction has has 218 places, 236 transitions, 620 flow [2022-11-16 12:27:28,150 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) [2022-11-16 12:27:28,151 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:28,151 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] [2022-11-16 12:27:28,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:27:28,152 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)] === [2022-11-16 12:27:28,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:28,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1732561676, now seen corresponding path program 1 times [2022-11-16 12:27:28,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:28,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125522593] [2022-11-16 12:27:28,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:28,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:28,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:28,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:28,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:28,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125522593] [2022-11-16 12:27:28,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125522593] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:28,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:28,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:27:28,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147760275] [2022-11-16 12:27:28,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:28,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:27:28,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:28,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:27:28,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:27:28,332 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 247 [2022-11-16 12:27:28,334 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) [2022-11-16 12:27:28,334 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:28,335 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 247 [2022-11-16 12:27:28,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:28,841 INFO L130 PetriNetUnfolder]: 449/1623 cut-off events. [2022-11-16 12:27:28,842 INFO L131 PetriNetUnfolder]: For 460/520 co-relation queries the response was YES. [2022-11-16 12:27:28,846 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. [2022-11-16 12:27:28,856 INFO L137 encePairwiseOnDemand]: 242/247 looper letters, 50 selfloop transitions, 4 changer transitions 0/241 dead transitions. [2022-11-16 12:27:28,856 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 241 transitions, 738 flow [2022-11-16 12:27:28,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:27:28,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:27:28,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1255 transitions. [2022-11-16 12:27:28,862 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8468286099865048 [2022-11-16 12:27:28,867 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1255 transitions. [2022-11-16 12:27:28,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1255 transitions. [2022-11-16 12:27:28,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:28,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1255 transitions. [2022-11-16 12:27:28,872 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) [2022-11-16 12:27:28,876 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) [2022-11-16 12:27:28,877 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) [2022-11-16 12:27:28,877 INFO L175 Difference]: Start difference. First operand has 218 places, 236 transitions, 620 flow. Second operand 6 states and 1255 transitions. [2022-11-16 12:27:28,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 241 transitions, 738 flow [2022-11-16 12:27:28,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 241 transitions, 738 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:27:28,896 INFO L231 Difference]: Finished difference. Result has 227 places, 239 transitions, 649 flow [2022-11-16 12:27:28,897 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} [2022-11-16 12:27:28,899 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -18 predicate places. [2022-11-16 12:27:28,899 INFO L495 AbstractCegarLoop]: Abstraction has has 227 places, 239 transitions, 649 flow [2022-11-16 12:27:28,900 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) [2022-11-16 12:27:28,900 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:28,901 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] [2022-11-16 12:27:28,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:27:28,901 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)] === [2022-11-16 12:27:28,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:28,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1253499727, now seen corresponding path program 1 times [2022-11-16 12:27:28,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:28,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957932869] [2022-11-16 12:27:28,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:28,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:28,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:29,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:29,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:29,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957932869] [2022-11-16 12:27:29,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957932869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:29,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:29,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:27:29,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082261007] [2022-11-16 12:27:29,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:29,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:27:29,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:29,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:27:29,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:27:29,592 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 247 [2022-11-16 12:27:29,593 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) [2022-11-16 12:27:29,594 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:29,594 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 247 [2022-11-16 12:27:29,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:30,957 INFO L130 PetriNetUnfolder]: 1147/2607 cut-off events. [2022-11-16 12:27:30,958 INFO L131 PetriNetUnfolder]: For 845/851 co-relation queries the response was YES. [2022-11-16 12:27:30,965 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. [2022-11-16 12:27:30,982 INFO L137 encePairwiseOnDemand]: 234/247 looper letters, 110 selfloop transitions, 30 changer transitions 0/268 dead transitions. [2022-11-16 12:27:30,983 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 268 transitions, 1035 flow [2022-11-16 12:27:30,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:27:30,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:27:30,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 959 transitions. [2022-11-16 12:27:30,986 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6470985155195681 [2022-11-16 12:27:30,986 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 959 transitions. [2022-11-16 12:27:30,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 959 transitions. [2022-11-16 12:27:30,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:30,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 959 transitions. [2022-11-16 12:27:30,990 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) [2022-11-16 12:27:30,994 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) [2022-11-16 12:27:30,995 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) [2022-11-16 12:27:30,995 INFO L175 Difference]: Start difference. First operand has 227 places, 239 transitions, 649 flow. Second operand 6 states and 959 transitions. [2022-11-16 12:27:30,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 268 transitions, 1035 flow [2022-11-16 12:27:31,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 268 transitions, 1034 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:27:31,006 INFO L231 Difference]: Finished difference. Result has 236 places, 268 transitions, 898 flow [2022-11-16 12:27:31,006 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} [2022-11-16 12:27:31,007 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -9 predicate places. [2022-11-16 12:27:31,007 INFO L495 AbstractCegarLoop]: Abstraction has has 236 places, 268 transitions, 898 flow [2022-11-16 12:27:31,008 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) [2022-11-16 12:27:31,008 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:31,008 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] [2022-11-16 12:27:31,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:27:31,009 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)] === [2022-11-16 12:27:31,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:31,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1373465184, now seen corresponding path program 1 times [2022-11-16 12:27:31,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:31,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095565381] [2022-11-16 12:27:31,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:31,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:31,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:31,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:31,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:31,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095565381] [2022-11-16 12:27:31,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095565381] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:31,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:31,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:27:31,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411841202] [2022-11-16 12:27:31,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:31,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:27:31,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:31,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:27:31,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:27:31,733 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 247 [2022-11-16 12:27:31,735 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) [2022-11-16 12:27:31,735 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:31,735 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 247 [2022-11-16 12:27:31,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:33,045 INFO L130 PetriNetUnfolder]: 1123/2692 cut-off events. [2022-11-16 12:27:33,045 INFO L131 PetriNetUnfolder]: For 2062/2224 co-relation queries the response was YES. [2022-11-16 12:27:33,054 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. [2022-11-16 12:27:33,075 INFO L137 encePairwiseOnDemand]: 236/247 looper letters, 139 selfloop transitions, 22 changer transitions 0/298 dead transitions. [2022-11-16 12:27:33,075 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 298 transitions, 1377 flow [2022-11-16 12:27:33,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:27:33,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:27:33,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1012 transitions. [2022-11-16 12:27:33,079 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6828609986504723 [2022-11-16 12:27:33,080 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1012 transitions. [2022-11-16 12:27:33,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1012 transitions. [2022-11-16 12:27:33,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:33,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1012 transitions. [2022-11-16 12:27:33,086 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) [2022-11-16 12:27:33,089 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) [2022-11-16 12:27:33,090 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) [2022-11-16 12:27:33,090 INFO L175 Difference]: Start difference. First operand has 236 places, 268 transitions, 898 flow. Second operand 6 states and 1012 transitions. [2022-11-16 12:27:33,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 298 transitions, 1377 flow [2022-11-16 12:27:33,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 298 transitions, 1329 flow, removed 24 selfloop flow, removed 0 redundant places. [2022-11-16 12:27:33,107 INFO L231 Difference]: Finished difference. Result has 246 places, 289 transitions, 1064 flow [2022-11-16 12:27:33,107 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} [2022-11-16 12:27:33,111 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 1 predicate places. [2022-11-16 12:27:33,111 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 289 transitions, 1064 flow [2022-11-16 12:27:33,112 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) [2022-11-16 12:27:33,112 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:33,112 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] [2022-11-16 12:27:33,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:27:33,113 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)] === [2022-11-16 12:27:33,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:33,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1652809650, now seen corresponding path program 1 times [2022-11-16 12:27:33,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:33,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100958551] [2022-11-16 12:27:33,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:33,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:33,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:33,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:33,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:33,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100958551] [2022-11-16 12:27:33,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100958551] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:33,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:33,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:27:33,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610888227] [2022-11-16 12:27:33,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:33,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:27:33,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:33,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:27:33,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:27:33,768 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 247 [2022-11-16 12:27:33,769 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) [2022-11-16 12:27:33,769 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:33,769 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 247 [2022-11-16 12:27:33,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:35,458 INFO L130 PetriNetUnfolder]: 1448/3388 cut-off events. [2022-11-16 12:27:35,458 INFO L131 PetriNetUnfolder]: For 3667/3693 co-relation queries the response was YES. [2022-11-16 12:27:35,469 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. [2022-11-16 12:27:35,497 INFO L137 encePairwiseOnDemand]: 231/247 looper letters, 167 selfloop transitions, 26 changer transitions 0/324 dead transitions. [2022-11-16 12:27:35,497 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 324 transitions, 1652 flow [2022-11-16 12:27:35,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:27:35,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:27:35,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 976 transitions. [2022-11-16 12:27:35,502 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6585695006747638 [2022-11-16 12:27:35,502 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 976 transitions. [2022-11-16 12:27:35,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 976 transitions. [2022-11-16 12:27:35,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:35,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 976 transitions. [2022-11-16 12:27:35,506 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) [2022-11-16 12:27:35,509 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) [2022-11-16 12:27:35,510 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) [2022-11-16 12:27:35,510 INFO L175 Difference]: Start difference. First operand has 246 places, 289 transitions, 1064 flow. Second operand 6 states and 976 transitions. [2022-11-16 12:27:35,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 324 transitions, 1652 flow [2022-11-16 12:27:35,521 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 324 transitions, 1652 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:27:35,526 INFO L231 Difference]: Finished difference. Result has 255 places, 309 transitions, 1328 flow [2022-11-16 12:27:35,527 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} [2022-11-16 12:27:35,528 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 10 predicate places. [2022-11-16 12:27:35,528 INFO L495 AbstractCegarLoop]: Abstraction has has 255 places, 309 transitions, 1328 flow [2022-11-16 12:27:35,529 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) [2022-11-16 12:27:35,529 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:35,530 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] [2022-11-16 12:27:35,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:27:35,530 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)] === [2022-11-16 12:27:35,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:35,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1071839121, now seen corresponding path program 1 times [2022-11-16 12:27:35,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:35,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275929284] [2022-11-16 12:27:35,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:35,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:35,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:35,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:35,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:35,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275929284] [2022-11-16 12:27:35,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275929284] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:35,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:35,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:27:35,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880323579] [2022-11-16 12:27:35,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:35,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:27:35,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:35,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:27:35,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:27:35,739 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 247 [2022-11-16 12:27:35,741 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) [2022-11-16 12:27:35,741 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:35,741 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 247 [2022-11-16 12:27:35,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:36,232 INFO L130 PetriNetUnfolder]: 327/1127 cut-off events. [2022-11-16 12:27:36,232 INFO L131 PetriNetUnfolder]: For 1923/1995 co-relation queries the response was YES. [2022-11-16 12:27:36,237 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. [2022-11-16 12:27:36,243 INFO L137 encePairwiseOnDemand]: 242/247 looper letters, 66 selfloop transitions, 4 changer transitions 1/253 dead transitions. [2022-11-16 12:27:36,243 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 253 transitions, 1124 flow [2022-11-16 12:27:36,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:27:36,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 12:27:36,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1278 transitions. [2022-11-16 12:27:36,248 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8623481781376519 [2022-11-16 12:27:36,248 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1278 transitions. [2022-11-16 12:27:36,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1278 transitions. [2022-11-16 12:27:36,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:36,249 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1278 transitions. [2022-11-16 12:27:36,255 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) [2022-11-16 12:27:36,258 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) [2022-11-16 12:27:36,259 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) [2022-11-16 12:27:36,260 INFO L175 Difference]: Start difference. First operand has 255 places, 309 transitions, 1328 flow. Second operand 6 states and 1278 transitions. [2022-11-16 12:27:36,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 253 transitions, 1124 flow [2022-11-16 12:27:36,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 253 transitions, 1055 flow, removed 3 selfloop flow, removed 24 redundant places. [2022-11-16 12:27:36,272 INFO L231 Difference]: Finished difference. Result has 234 places, 227 transitions, 714 flow [2022-11-16 12:27:36,273 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} [2022-11-16 12:27:36,276 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, -11 predicate places. [2022-11-16 12:27:36,277 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 227 transitions, 714 flow [2022-11-16 12:27:36,277 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) [2022-11-16 12:27:36,278 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:36,278 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] [2022-11-16 12:27:36,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:27:36,279 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)] === [2022-11-16 12:27:36,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:36,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1726618591, now seen corresponding path program 1 times [2022-11-16 12:27:36,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:36,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024202084] [2022-11-16 12:27:36,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:36,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:36,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:40,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:40,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:40,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024202084] [2022-11-16 12:27:40,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024202084] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:40,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:40,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:27:40,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505455690] [2022-11-16 12:27:40,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:40,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:27:40,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:40,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:27:40,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:27:40,334 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 12:27:40,339 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) [2022-11-16 12:27:40,339 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:40,339 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 12:27:40,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:43,297 INFO L130 PetriNetUnfolder]: 1024/2127 cut-off events. [2022-11-16 12:27:43,298 INFO L131 PetriNetUnfolder]: For 4017/4045 co-relation queries the response was YES. [2022-11-16 12:27:43,303 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. [2022-11-16 12:27:43,315 INFO L137 encePairwiseOnDemand]: 227/247 looper letters, 237 selfloop transitions, 64 changer transitions 0/412 dead transitions. [2022-11-16 12:27:43,315 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 412 transitions, 2480 flow [2022-11-16 12:27:43,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:27:43,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:27:43,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2762 transitions. [2022-11-16 12:27:43,324 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5591093117408907 [2022-11-16 12:27:43,325 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2762 transitions. [2022-11-16 12:27:43,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2762 transitions. [2022-11-16 12:27:43,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:43,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2762 transitions. [2022-11-16 12:27:43,335 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) [2022-11-16 12:27:43,346 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) [2022-11-16 12:27:43,349 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) [2022-11-16 12:27:43,350 INFO L175 Difference]: Start difference. First operand has 234 places, 227 transitions, 714 flow. Second operand 20 states and 2762 transitions. [2022-11-16 12:27:43,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 412 transitions, 2480 flow [2022-11-16 12:27:43,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 412 transitions, 2455 flow, removed 3 selfloop flow, removed 7 redundant places. [2022-11-16 12:27:43,375 INFO L231 Difference]: Finished difference. Result has 254 places, 276 transitions, 1355 flow [2022-11-16 12:27:43,376 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} [2022-11-16 12:27:43,377 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 9 predicate places. [2022-11-16 12:27:43,377 INFO L495 AbstractCegarLoop]: Abstraction has has 254 places, 276 transitions, 1355 flow [2022-11-16 12:27:43,378 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) [2022-11-16 12:27:43,379 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:43,379 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] [2022-11-16 12:27:43,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:27:43,380 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)] === [2022-11-16 12:27:43,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:43,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1393729333, now seen corresponding path program 2 times [2022-11-16 12:27:43,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:43,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998076938] [2022-11-16 12:27:43,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:43,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:46,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:46,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:46,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998076938] [2022-11-16 12:27:46,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998076938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:46,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:46,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:27:46,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567910143] [2022-11-16 12:27:46,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:46,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:27:46,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:46,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:27:46,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:27:46,505 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 12:27:46,510 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) [2022-11-16 12:27:46,510 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:46,510 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 12:27:46,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:48,918 INFO L130 PetriNetUnfolder]: 1268/2618 cut-off events. [2022-11-16 12:27:48,918 INFO L131 PetriNetUnfolder]: For 11527/11555 co-relation queries the response was YES. [2022-11-16 12:27:48,927 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. [2022-11-16 12:27:48,945 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 212 selfloop transitions, 85 changer transitions 0/408 dead transitions. [2022-11-16 12:27:48,945 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 408 transitions, 2949 flow [2022-11-16 12:27:48,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 12:27:48,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-16 12:27:48,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2367 transitions. [2022-11-16 12:27:48,958 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5637056442010002 [2022-11-16 12:27:48,959 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2367 transitions. [2022-11-16 12:27:48,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2367 transitions. [2022-11-16 12:27:48,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:48,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2367 transitions. [2022-11-16 12:27:48,968 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) [2022-11-16 12:27:48,978 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) [2022-11-16 12:27:48,981 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) [2022-11-16 12:27:48,981 INFO L175 Difference]: Start difference. First operand has 254 places, 276 transitions, 1355 flow. Second operand 17 states and 2367 transitions. [2022-11-16 12:27:48,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 408 transitions, 2949 flow [2022-11-16 12:27:49,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 408 transitions, 2881 flow, removed 15 selfloop flow, removed 9 redundant places. [2022-11-16 12:27:49,032 INFO L231 Difference]: Finished difference. Result has 269 places, 323 transitions, 2278 flow [2022-11-16 12:27:49,033 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} [2022-11-16 12:27:49,033 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 24 predicate places. [2022-11-16 12:27:49,034 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 323 transitions, 2278 flow [2022-11-16 12:27:49,036 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) [2022-11-16 12:27:49,036 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:49,036 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] [2022-11-16 12:27:49,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:27:49,037 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)] === [2022-11-16 12:27:49,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:49,037 INFO L85 PathProgramCache]: Analyzing trace with hash 159715451, now seen corresponding path program 3 times [2022-11-16 12:27:49,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:49,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516053552] [2022-11-16 12:27:49,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:49,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:49,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:51,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:51,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:51,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516053552] [2022-11-16 12:27:51,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516053552] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:51,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:51,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:27:51,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869361030] [2022-11-16 12:27:51,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:51,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:27:51,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:51,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:27:51,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:27:51,776 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 12:27:51,779 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) [2022-11-16 12:27:51,780 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:51,780 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 12:27:51,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:27:54,777 INFO L130 PetriNetUnfolder]: 1375/2751 cut-off events. [2022-11-16 12:27:54,777 INFO L131 PetriNetUnfolder]: For 18341/18341 co-relation queries the response was YES. [2022-11-16 12:27:54,789 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. [2022-11-16 12:27:54,808 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 199 selfloop transitions, 127 changer transitions 0/437 dead transitions. [2022-11-16 12:27:54,808 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 437 transitions, 3895 flow [2022-11-16 12:27:54,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 12:27:54,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-11-16 12:27:54,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2233 transitions. [2022-11-16 12:27:54,816 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5650303643724697 [2022-11-16 12:27:54,816 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2233 transitions. [2022-11-16 12:27:54,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2233 transitions. [2022-11-16 12:27:54,818 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:27:54,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2233 transitions. [2022-11-16 12:27:54,824 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) [2022-11-16 12:27:54,833 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) [2022-11-16 12:27:54,834 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) [2022-11-16 12:27:54,835 INFO L175 Difference]: Start difference. First operand has 269 places, 323 transitions, 2278 flow. Second operand 16 states and 2233 transitions. [2022-11-16 12:27:54,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 437 transitions, 3895 flow [2022-11-16 12:27:54,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 437 transitions, 3698 flow, removed 83 selfloop flow, removed 9 redundant places. [2022-11-16 12:27:54,927 INFO L231 Difference]: Finished difference. Result has 281 places, 367 transitions, 3262 flow [2022-11-16 12:27:54,928 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} [2022-11-16 12:27:54,930 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 36 predicate places. [2022-11-16 12:27:54,930 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 367 transitions, 3262 flow [2022-11-16 12:27:54,931 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) [2022-11-16 12:27:54,931 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:27:54,931 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] [2022-11-16 12:27:54,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:27:54,932 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)] === [2022-11-16 12:27:54,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:54,932 INFO L85 PathProgramCache]: Analyzing trace with hash 458935901, now seen corresponding path program 4 times [2022-11-16 12:27:54,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:54,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873016525] [2022-11-16 12:27:54,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:54,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:54,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:57,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:27:57,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:57,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873016525] [2022-11-16 12:27:57,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873016525] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:27:57,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:27:57,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:27:57,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679233524] [2022-11-16 12:27:57,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:27:57,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:27:57,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:57,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:27:57,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:27:57,999 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 12:27:58,003 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) [2022-11-16 12:27:58,003 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:27:58,003 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 12:27:58,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:28:01,514 INFO L130 PetriNetUnfolder]: 1655/3274 cut-off events. [2022-11-16 12:28:01,515 INFO L131 PetriNetUnfolder]: For 32815/32899 co-relation queries the response was YES. [2022-11-16 12:28:01,528 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. [2022-11-16 12:28:01,554 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 317 selfloop transitions, 161 changer transitions 0/589 dead transitions. [2022-11-16 12:28:01,554 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 589 transitions, 7145 flow [2022-11-16 12:28:01,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:28:01,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:28:01,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2768 transitions. [2022-11-16 12:28:01,563 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5603238866396761 [2022-11-16 12:28:01,563 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2768 transitions. [2022-11-16 12:28:01,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2768 transitions. [2022-11-16 12:28:01,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:28:01,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2768 transitions. [2022-11-16 12:28:01,573 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) [2022-11-16 12:28:01,582 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) [2022-11-16 12:28:01,585 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) [2022-11-16 12:28:01,585 INFO L175 Difference]: Start difference. First operand has 281 places, 367 transitions, 3262 flow. Second operand 20 states and 2768 transitions. [2022-11-16 12:28:01,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 589 transitions, 7145 flow [2022-11-16 12:28:01,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 589 transitions, 6965 flow, removed 15 selfloop flow, removed 9 redundant places. [2022-11-16 12:28:01,706 INFO L231 Difference]: Finished difference. Result has 298 places, 440 transitions, 5176 flow [2022-11-16 12:28:01,706 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} [2022-11-16 12:28:01,707 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 53 predicate places. [2022-11-16 12:28:01,707 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 440 transitions, 5176 flow [2022-11-16 12:28:01,708 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) [2022-11-16 12:28:01,709 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:28:01,709 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] [2022-11-16 12:28:01,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:28:01,709 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)] === [2022-11-16 12:28:01,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:01,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1435470851, now seen corresponding path program 5 times [2022-11-16 12:28:01,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:01,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488115004] [2022-11-16 12:28:01,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:01,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:01,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:04,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:28:04,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:04,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488115004] [2022-11-16 12:28:04,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488115004] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:04,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:04,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:28:04,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971944736] [2022-11-16 12:28:04,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:04,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:28:04,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:04,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:28:04,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:28:04,152 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 12:28:04,155 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) [2022-11-16 12:28:04,155 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:28:04,155 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 12:28:04,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:28:08,046 INFO L130 PetriNetUnfolder]: 1872/3659 cut-off events. [2022-11-16 12:28:08,046 INFO L131 PetriNetUnfolder]: For 50970/50970 co-relation queries the response was YES. [2022-11-16 12:28:08,059 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. [2022-11-16 12:28:08,088 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 246 selfloop transitions, 235 changer transitions 0/592 dead transitions. [2022-11-16 12:28:08,088 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 592 transitions, 7984 flow [2022-11-16 12:28:08,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 12:28:08,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-16 12:28:08,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2375 transitions. [2022-11-16 12:28:08,094 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5656108597285068 [2022-11-16 12:28:08,095 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2375 transitions. [2022-11-16 12:28:08,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2375 transitions. [2022-11-16 12:28:08,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:28:08,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2375 transitions. [2022-11-16 12:28:08,102 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) [2022-11-16 12:28:08,109 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) [2022-11-16 12:28:08,111 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) [2022-11-16 12:28:08,112 INFO L175 Difference]: Start difference. First operand has 298 places, 440 transitions, 5176 flow. Second operand 17 states and 2375 transitions. [2022-11-16 12:28:08,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 592 transitions, 7984 flow [2022-11-16 12:28:08,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 592 transitions, 7669 flow, removed 92 selfloop flow, removed 12 redundant places. [2022-11-16 12:28:08,367 INFO L231 Difference]: Finished difference. Result has 308 places, 505 transitions, 7095 flow [2022-11-16 12:28:08,368 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} [2022-11-16 12:28:08,369 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 63 predicate places. [2022-11-16 12:28:08,370 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 505 transitions, 7095 flow [2022-11-16 12:28:08,371 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) [2022-11-16 12:28:08,371 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:28:08,371 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] [2022-11-16 12:28:08,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:28:08,371 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)] === [2022-11-16 12:28:08,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:08,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1790632389, now seen corresponding path program 6 times [2022-11-16 12:28:08,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:08,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44055997] [2022-11-16 12:28:08,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:08,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:08,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:10,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:28:10,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:10,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44055997] [2022-11-16 12:28:10,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44055997] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:10,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:10,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:28:10,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801961497] [2022-11-16 12:28:10,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:10,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:28:10,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:10,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:28:10,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:28:10,951 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 12:28:10,953 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) [2022-11-16 12:28:10,954 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:28:10,954 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 12:28:10,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:28:14,337 INFO L130 PetriNetUnfolder]: 1946/3781 cut-off events. [2022-11-16 12:28:14,337 INFO L131 PetriNetUnfolder]: For 70368/70368 co-relation queries the response was YES. [2022-11-16 12:28:14,354 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. [2022-11-16 12:28:14,382 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 367 selfloop transitions, 215 changer transitions 0/693 dead transitions. [2022-11-16 12:28:14,383 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 693 transitions, 11011 flow [2022-11-16 12:28:14,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:28:14,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:28:14,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2768 transitions. [2022-11-16 12:28:14,480 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5603238866396761 [2022-11-16 12:28:14,481 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2768 transitions. [2022-11-16 12:28:14,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2768 transitions. [2022-11-16 12:28:14,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:28:14,483 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2768 transitions. [2022-11-16 12:28:14,489 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) [2022-11-16 12:28:14,497 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) [2022-11-16 12:28:14,499 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) [2022-11-16 12:28:14,500 INFO L175 Difference]: Start difference. First operand has 308 places, 505 transitions, 7095 flow. Second operand 20 states and 2768 transitions. [2022-11-16 12:28:14,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 693 transitions, 11011 flow [2022-11-16 12:28:14,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 693 transitions, 10749 flow, removed 49 selfloop flow, removed 9 redundant places. [2022-11-16 12:28:14,833 INFO L231 Difference]: Finished difference. Result has 324 places, 537 transitions, 8247 flow [2022-11-16 12:28:14,834 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} [2022-11-16 12:28:14,835 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 79 predicate places. [2022-11-16 12:28:14,835 INFO L495 AbstractCegarLoop]: Abstraction has has 324 places, 537 transitions, 8247 flow [2022-11-16 12:28:14,836 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) [2022-11-16 12:28:14,837 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:28:14,837 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] [2022-11-16 12:28:14,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:28:14,837 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)] === [2022-11-16 12:28:14,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:14,838 INFO L85 PathProgramCache]: Analyzing trace with hash -151037885, now seen corresponding path program 7 times [2022-11-16 12:28:14,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:14,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473982756] [2022-11-16 12:28:14,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:14,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:14,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:17,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:28:17,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:17,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473982756] [2022-11-16 12:28:17,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473982756] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:17,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:17,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:28:17,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517408943] [2022-11-16 12:28:17,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:17,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:28:17,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:17,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:28:17,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:28:17,123 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 12:28:17,126 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) [2022-11-16 12:28:17,127 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:28:17,127 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 12:28:17,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:28:20,538 INFO L130 PetriNetUnfolder]: 2205/4295 cut-off events. [2022-11-16 12:28:20,538 INFO L131 PetriNetUnfolder]: For 80010/80010 co-relation queries the response was YES. [2022-11-16 12:28:20,558 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. [2022-11-16 12:28:20,582 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 276 selfloop transitions, 309 changer transitions 0/696 dead transitions. [2022-11-16 12:28:20,582 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 696 transitions, 11805 flow [2022-11-16 12:28:20,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 12:28:20,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-11-16 12:28:20,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2374 transitions. [2022-11-16 12:28:20,588 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5653727077875684 [2022-11-16 12:28:20,588 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2374 transitions. [2022-11-16 12:28:20,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2374 transitions. [2022-11-16 12:28:20,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:28:20,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2374 transitions. [2022-11-16 12:28:20,595 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) [2022-11-16 12:28:20,602 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) [2022-11-16 12:28:20,604 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) [2022-11-16 12:28:20,604 INFO L175 Difference]: Start difference. First operand has 324 places, 537 transitions, 8247 flow. Second operand 17 states and 2374 transitions. [2022-11-16 12:28:20,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 696 transitions, 11805 flow [2022-11-16 12:28:20,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 696 transitions, 11582 flow, removed 34 selfloop flow, removed 12 redundant places. [2022-11-16 12:28:20,994 INFO L231 Difference]: Finished difference. Result has 336 places, 622 transitions, 11243 flow [2022-11-16 12:28:20,995 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} [2022-11-16 12:28:20,995 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 91 predicate places. [2022-11-16 12:28:20,995 INFO L495 AbstractCegarLoop]: Abstraction has has 336 places, 622 transitions, 11243 flow [2022-11-16 12:28:20,996 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) [2022-11-16 12:28:20,996 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:28:20,996 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] [2022-11-16 12:28:20,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 12:28:20,996 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)] === [2022-11-16 12:28:20,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:20,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1981756155, now seen corresponding path program 8 times [2022-11-16 12:28:20,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:20,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269059259] [2022-11-16 12:28:20,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:20,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:21,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:23,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:28:23,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:23,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269059259] [2022-11-16 12:28:23,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269059259] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:23,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:23,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:28:23,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437392837] [2022-11-16 12:28:23,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:23,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:28:23,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:23,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:28:23,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:28:23,240 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 12:28:23,243 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) [2022-11-16 12:28:23,243 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:28:23,244 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 12:28:23,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:28:27,218 INFO L130 PetriNetUnfolder]: 2251/4398 cut-off events. [2022-11-16 12:28:27,218 INFO L131 PetriNetUnfolder]: For 109426/109454 co-relation queries the response was YES. [2022-11-16 12:28:27,241 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. [2022-11-16 12:28:27,267 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 418 selfloop transitions, 273 changer transitions 0/802 dead transitions. [2022-11-16 12:28:27,267 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 802 transitions, 15569 flow [2022-11-16 12:28:27,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 12:28:27,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-16 12:28:27,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2631 transitions. [2022-11-16 12:28:27,272 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.560622203281483 [2022-11-16 12:28:27,272 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2631 transitions. [2022-11-16 12:28:27,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2631 transitions. [2022-11-16 12:28:27,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:28:27,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2631 transitions. [2022-11-16 12:28:27,279 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) [2022-11-16 12:28:27,286 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) [2022-11-16 12:28:27,288 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) [2022-11-16 12:28:27,289 INFO L175 Difference]: Start difference. First operand has 336 places, 622 transitions, 11243 flow. Second operand 19 states and 2631 transitions. [2022-11-16 12:28:27,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 802 transitions, 15569 flow [2022-11-16 12:28:27,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 802 transitions, 15133 flow, removed 144 selfloop flow, removed 10 redundant places. [2022-11-16 12:28:27,755 INFO L231 Difference]: Finished difference. Result has 349 places, 641 transitions, 12406 flow [2022-11-16 12:28:27,756 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} [2022-11-16 12:28:27,756 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 104 predicate places. [2022-11-16 12:28:27,757 INFO L495 AbstractCegarLoop]: Abstraction has has 349 places, 641 transitions, 12406 flow [2022-11-16 12:28:27,758 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) [2022-11-16 12:28:27,758 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:28:27,758 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] [2022-11-16 12:28:27,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 12:28:27,759 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)] === [2022-11-16 12:28:27,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:27,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1914038053, now seen corresponding path program 9 times [2022-11-16 12:28:27,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:27,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073643573] [2022-11-16 12:28:27,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:27,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:29,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:28:29,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:29,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073643573] [2022-11-16 12:28:29,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073643573] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:29,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:29,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:28:29,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878970774] [2022-11-16 12:28:29,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:29,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:28:29,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:29,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:28:29,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:28:29,843 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 12:28:29,844 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) [2022-11-16 12:28:29,845 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:28:29,845 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 12:28:29,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:28:34,006 INFO L130 PetriNetUnfolder]: 2410/4643 cut-off events. [2022-11-16 12:28:34,006 INFO L131 PetriNetUnfolder]: For 124889/124889 co-relation queries the response was YES. [2022-11-16 12:28:34,028 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. [2022-11-16 12:28:34,071 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 359 selfloop transitions, 313 changer transitions 0/783 dead transitions. [2022-11-16 12:28:34,071 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 783 transitions, 15985 flow [2022-11-16 12:28:34,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 12:28:34,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 12:28:34,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2506 transitions. [2022-11-16 12:28:34,077 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5636527215474584 [2022-11-16 12:28:34,077 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2506 transitions. [2022-11-16 12:28:34,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2506 transitions. [2022-11-16 12:28:34,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:28:34,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2506 transitions. [2022-11-16 12:28:34,084 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) [2022-11-16 12:28:34,090 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) [2022-11-16 12:28:34,092 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) [2022-11-16 12:28:34,093 INFO L175 Difference]: Start difference. First operand has 349 places, 641 transitions, 12406 flow. Second operand 18 states and 2506 transitions. [2022-11-16 12:28:34,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 783 transitions, 15985 flow [2022-11-16 12:28:34,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 783 transitions, 15830 flow, removed 2 selfloop flow, removed 11 redundant places. [2022-11-16 12:28:34,787 INFO L231 Difference]: Finished difference. Result has 360 places, 687 transitions, 14757 flow [2022-11-16 12:28:34,788 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} [2022-11-16 12:28:34,788 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 115 predicate places. [2022-11-16 12:28:34,788 INFO L495 AbstractCegarLoop]: Abstraction has has 360 places, 687 transitions, 14757 flow [2022-11-16 12:28:34,789 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) [2022-11-16 12:28:34,789 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:28:34,789 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] [2022-11-16 12:28:34,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 12:28:34,790 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)] === [2022-11-16 12:28:34,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:34,791 INFO L85 PathProgramCache]: Analyzing trace with hash -2038817223, now seen corresponding path program 10 times [2022-11-16 12:28:34,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:34,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119626390] [2022-11-16 12:28:34,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:34,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:34,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:37,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:28:37,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:37,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119626390] [2022-11-16 12:28:37,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119626390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:37,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:37,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:28:37,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12169811] [2022-11-16 12:28:37,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:37,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:28:37,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:37,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:28:37,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:28:37,199 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 12:28:37,200 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) [2022-11-16 12:28:37,200 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:28:37,201 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 12:28:37,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:28:42,385 INFO L130 PetriNetUnfolder]: 2627/5124 cut-off events. [2022-11-16 12:28:42,385 INFO L131 PetriNetUnfolder]: For 162008/162008 co-relation queries the response was YES. [2022-11-16 12:28:42,422 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. [2022-11-16 12:28:42,469 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 308 selfloop transitions, 478 changer transitions 0/897 dead transitions. [2022-11-16 12:28:42,469 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 897 transitions, 20111 flow [2022-11-16 12:28:42,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:28:42,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:28:42,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2765 transitions. [2022-11-16 12:28:42,475 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5597165991902834 [2022-11-16 12:28:42,475 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2765 transitions. [2022-11-16 12:28:42,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2765 transitions. [2022-11-16 12:28:42,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:28:42,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2765 transitions. [2022-11-16 12:28:42,482 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) [2022-11-16 12:28:42,489 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) [2022-11-16 12:28:42,492 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) [2022-11-16 12:28:42,492 INFO L175 Difference]: Start difference. First operand has 360 places, 687 transitions, 14757 flow. Second operand 20 states and 2765 transitions. [2022-11-16 12:28:42,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 897 transitions, 20111 flow [2022-11-16 12:28:43,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 897 transitions, 19920 flow, removed 48 selfloop flow, removed 11 redundant places. [2022-11-16 12:28:43,466 INFO L231 Difference]: Finished difference. Result has 380 places, 813 transitions, 19301 flow [2022-11-16 12:28:43,466 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} [2022-11-16 12:28:43,467 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 135 predicate places. [2022-11-16 12:28:43,467 INFO L495 AbstractCegarLoop]: Abstraction has has 380 places, 813 transitions, 19301 flow [2022-11-16 12:28:43,467 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) [2022-11-16 12:28:43,468 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:28:43,468 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] [2022-11-16 12:28:43,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 12:28:43,468 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)] === [2022-11-16 12:28:43,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:43,468 INFO L85 PathProgramCache]: Analyzing trace with hash -853750051, now seen corresponding path program 11 times [2022-11-16 12:28:43,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:43,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075865163] [2022-11-16 12:28:43,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:43,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:45,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:28:45,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:45,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075865163] [2022-11-16 12:28:45,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075865163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:45,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:45,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:28:45,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184845252] [2022-11-16 12:28:45,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:45,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:28:45,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:45,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:28:45,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:28:45,385 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 12:28:45,387 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) [2022-11-16 12:28:45,387 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:28:45,387 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 12:28:45,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:28:50,283 INFO L130 PetriNetUnfolder]: 2631/5128 cut-off events. [2022-11-16 12:28:50,283 INFO L131 PetriNetUnfolder]: For 186733/186761 co-relation queries the response was YES. [2022-11-16 12:28:50,314 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. [2022-11-16 12:28:50,347 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 498 selfloop transitions, 347 changer transitions 0/956 dead transitions. [2022-11-16 12:28:50,347 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 956 transitions, 23274 flow [2022-11-16 12:28:50,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:28:50,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:28:50,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2766 transitions. [2022-11-16 12:28:50,352 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.559919028340081 [2022-11-16 12:28:50,353 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2766 transitions. [2022-11-16 12:28:50,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2766 transitions. [2022-11-16 12:28:50,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:28:50,354 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2766 transitions. [2022-11-16 12:28:50,360 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) [2022-11-16 12:28:50,365 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) [2022-11-16 12:28:50,367 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) [2022-11-16 12:28:50,367 INFO L175 Difference]: Start difference. First operand has 380 places, 813 transitions, 19301 flow. Second operand 20 states and 2766 transitions. [2022-11-16 12:28:50,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 956 transitions, 23274 flow [2022-11-16 12:28:51,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 393 places, 956 transitions, 22797 flow, removed 233 selfloop flow, removed 6 redundant places. [2022-11-16 12:28:51,474 INFO L231 Difference]: Finished difference. Result has 397 places, 831 transitions, 20331 flow [2022-11-16 12:28:51,476 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} [2022-11-16 12:28:51,476 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 152 predicate places. [2022-11-16 12:28:51,476 INFO L495 AbstractCegarLoop]: Abstraction has has 397 places, 831 transitions, 20331 flow [2022-11-16 12:28:51,477 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) [2022-11-16 12:28:51,478 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:28:51,478 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] [2022-11-16 12:28:51,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 12:28:51,478 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)] === [2022-11-16 12:28:51,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:51,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1298826229, now seen corresponding path program 12 times [2022-11-16 12:28:51,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:51,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113246750] [2022-11-16 12:28:51,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:51,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:51,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:53,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:28:53,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:53,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113246750] [2022-11-16 12:28:53,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113246750] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:28:53,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:28:53,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:28:53,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039990285] [2022-11-16 12:28:53,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:28:53,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:28:53,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:53,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:28:53,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:28:53,458 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 12:28:53,460 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) [2022-11-16 12:28:53,460 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:28:53,461 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 12:28:53,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:28:57,905 INFO L130 PetriNetUnfolder]: 2855/5518 cut-off events. [2022-11-16 12:28:57,905 INFO L131 PetriNetUnfolder]: For 218899/218899 co-relation queries the response was YES. [2022-11-16 12:28:57,945 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. [2022-11-16 12:28:57,981 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 479 selfloop transitions, 399 changer transitions 0/989 dead transitions. [2022-11-16 12:28:57,981 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 989 transitions, 25653 flow [2022-11-16 12:28:57,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 12:28:57,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-11-16 12:28:57,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2505 transitions. [2022-11-16 12:28:57,986 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5634278002699056 [2022-11-16 12:28:57,986 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2505 transitions. [2022-11-16 12:28:57,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2505 transitions. [2022-11-16 12:28:57,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:28:57,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2505 transitions. [2022-11-16 12:28:57,992 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) [2022-11-16 12:28:57,997 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) [2022-11-16 12:28:57,998 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) [2022-11-16 12:28:57,999 INFO L175 Difference]: Start difference. First operand has 397 places, 831 transitions, 20331 flow. Second operand 18 states and 2505 transitions. [2022-11-16 12:28:57,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 989 transitions, 25653 flow [2022-11-16 12:28:59,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 400 places, 989 transitions, 25392 flow, removed 22 selfloop flow, removed 14 redundant places. [2022-11-16 12:28:59,469 INFO L231 Difference]: Finished difference. Result has 407 places, 909 transitions, 24471 flow [2022-11-16 12:28:59,470 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} [2022-11-16 12:28:59,471 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 162 predicate places. [2022-11-16 12:28:59,471 INFO L495 AbstractCegarLoop]: Abstraction has has 407 places, 909 transitions, 24471 flow [2022-11-16 12:28:59,472 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) [2022-11-16 12:28:59,472 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:28:59,472 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] [2022-11-16 12:28:59,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 12:28:59,473 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)] === [2022-11-16 12:28:59,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:59,473 INFO L85 PathProgramCache]: Analyzing trace with hash -656161895, now seen corresponding path program 13 times [2022-11-16 12:28:59,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:59,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018456455] [2022-11-16 12:28:59,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:59,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:59,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:01,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:29:01,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:29:01,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018456455] [2022-11-16 12:29:01,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018456455] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:29:01,631 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:29:01,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:29:01,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261546779] [2022-11-16 12:29:01,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:29:01,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:29:01,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:29:01,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:29:01,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:29:01,635 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 12:29:01,637 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) [2022-11-16 12:29:01,638 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:29:01,638 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 12:29:01,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:29:07,892 INFO L130 PetriNetUnfolder]: 3275/6346 cut-off events. [2022-11-16 12:29:07,892 INFO L131 PetriNetUnfolder]: For 299028/299056 co-relation queries the response was YES. [2022-11-16 12:29:07,934 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. [2022-11-16 12:29:07,986 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 565 selfloop transitions, 471 changer transitions 0/1147 dead transitions. [2022-11-16 12:29:07,986 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 1147 transitions, 33211 flow [2022-11-16 12:29:07,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:29:07,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:29:07,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2767 transitions. [2022-11-16 12:29:07,992 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5601214574898785 [2022-11-16 12:29:07,992 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2767 transitions. [2022-11-16 12:29:07,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2767 transitions. [2022-11-16 12:29:07,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:29:07,993 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2767 transitions. [2022-11-16 12:29:07,998 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) [2022-11-16 12:29:08,003 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) [2022-11-16 12:29:08,005 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) [2022-11-16 12:29:08,005 INFO L175 Difference]: Start difference. First operand has 407 places, 909 transitions, 24471 flow. Second operand 20 states and 2767 transitions. [2022-11-16 12:29:08,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 1147 transitions, 33211 flow [2022-11-16 12:29:10,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 1147 transitions, 32996 flow, removed 78 selfloop flow, removed 9 redundant places. [2022-11-16 12:29:10,194 INFO L231 Difference]: Finished difference. Result has 426 places, 1050 transitions, 31827 flow [2022-11-16 12:29:10,195 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} [2022-11-16 12:29:10,197 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 181 predicate places. [2022-11-16 12:29:10,197 INFO L495 AbstractCegarLoop]: Abstraction has has 426 places, 1050 transitions, 31827 flow [2022-11-16 12:29:10,198 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) [2022-11-16 12:29:10,198 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:29:10,198 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] [2022-11-16 12:29:10,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-16 12:29:10,198 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)] === [2022-11-16 12:29:10,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:29:10,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1946043831, now seen corresponding path program 14 times [2022-11-16 12:29:10,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:29:10,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350846290] [2022-11-16 12:29:10,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:29:10,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:29:10,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:12,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:29:12,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:29:12,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350846290] [2022-11-16 12:29:12,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350846290] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:29:12,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:29:12,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:29:12,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115948276] [2022-11-16 12:29:12,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:29:12,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:29:12,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:29:12,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:29:12,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:29:12,699 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 12:29:12,700 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) [2022-11-16 12:29:12,700 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:29:12,700 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 12:29:12,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:29:20,844 INFO L130 PetriNetUnfolder]: 3463/6799 cut-off events. [2022-11-16 12:29:20,845 INFO L131 PetriNetUnfolder]: For 370237/370251 co-relation queries the response was YES. [2022-11-16 12:29:20,895 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. [2022-11-16 12:29:20,946 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 534 selfloop transitions, 588 changer transitions 0/1233 dead transitions. [2022-11-16 12:29:20,947 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 1233 transitions, 38708 flow [2022-11-16 12:29:20,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:29:20,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:29:20,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2767 transitions. [2022-11-16 12:29:20,952 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5601214574898785 [2022-11-16 12:29:20,952 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2767 transitions. [2022-11-16 12:29:20,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2767 transitions. [2022-11-16 12:29:20,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:29:20,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2767 transitions. [2022-11-16 12:29:20,959 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) [2022-11-16 12:29:20,964 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) [2022-11-16 12:29:20,965 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) [2022-11-16 12:29:20,966 INFO L175 Difference]: Start difference. First operand has 426 places, 1050 transitions, 31827 flow. Second operand 20 states and 2767 transitions. [2022-11-16 12:29:20,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 1233 transitions, 38708 flow [2022-11-16 12:29:24,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 1233 transitions, 38293 flow, removed 185 selfloop flow, removed 8 redundant places. [2022-11-16 12:29:24,107 INFO L231 Difference]: Finished difference. Result has 447 places, 1148 transitions, 37113 flow [2022-11-16 12:29:24,108 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} [2022-11-16 12:29:24,109 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 202 predicate places. [2022-11-16 12:29:24,110 INFO L495 AbstractCegarLoop]: Abstraction has has 447 places, 1148 transitions, 37113 flow [2022-11-16 12:29:24,110 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) [2022-11-16 12:29:24,111 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:29:24,111 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] [2022-11-16 12:29:24,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-16 12:29:24,111 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)] === [2022-11-16 12:29:24,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:29:24,114 INFO L85 PathProgramCache]: Analyzing trace with hash 944467097, now seen corresponding path program 15 times [2022-11-16 12:29:24,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:29:24,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063544203] [2022-11-16 12:29:24,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:29:24,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:29:24,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:25,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:29:25,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:29:25,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063544203] [2022-11-16 12:29:25,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063544203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:29:25,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:29:25,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:29:25,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884738412] [2022-11-16 12:29:25,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:29:25,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:29:25,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:29:25,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:29:25,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:29:25,972 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 12:29:25,976 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) [2022-11-16 12:29:25,976 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:29:25,976 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 12:29:25,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:29:33,758 INFO L130 PetriNetUnfolder]: 3572/6897 cut-off events. [2022-11-16 12:29:33,758 INFO L131 PetriNetUnfolder]: For 420568/420582 co-relation queries the response was YES. [2022-11-16 12:29:33,819 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. [2022-11-16 12:29:33,872 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 649 selfloop transitions, 521 changer transitions 0/1281 dead transitions. [2022-11-16 12:29:33,872 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 1281 transitions, 42033 flow [2022-11-16 12:29:33,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 12:29:33,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-16 12:29:33,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2636 transitions. [2022-11-16 12:29:33,877 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.561687619859365 [2022-11-16 12:29:33,877 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2636 transitions. [2022-11-16 12:29:33,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2636 transitions. [2022-11-16 12:29:33,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:29:33,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2636 transitions. [2022-11-16 12:29:33,883 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) [2022-11-16 12:29:33,887 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) [2022-11-16 12:29:33,888 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) [2022-11-16 12:29:33,888 INFO L175 Difference]: Start difference. First operand has 447 places, 1148 transitions, 37113 flow. Second operand 19 states and 2636 transitions. [2022-11-16 12:29:33,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 1281 transitions, 42033 flow [2022-11-16 12:29:37,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 1281 transitions, 41439 flow, removed 271 selfloop flow, removed 10 redundant places. [2022-11-16 12:29:37,198 INFO L231 Difference]: Finished difference. Result has 463 places, 1191 transitions, 40408 flow [2022-11-16 12:29:37,198 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} [2022-11-16 12:29:37,199 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 218 predicate places. [2022-11-16 12:29:37,199 INFO L495 AbstractCegarLoop]: Abstraction has has 463 places, 1191 transitions, 40408 flow [2022-11-16 12:29:37,199 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) [2022-11-16 12:29:37,199 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:29:37,200 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] [2022-11-16 12:29:37,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-16 12:29:37,200 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)] === [2022-11-16 12:29:37,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:29:37,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1389237111, now seen corresponding path program 16 times [2022-11-16 12:29:37,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:29:37,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213123385] [2022-11-16 12:29:37,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:29:37,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:29:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:39,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:29:39,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:29:39,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213123385] [2022-11-16 12:29:39,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213123385] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:29:39,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:29:39,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:29:39,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132655419] [2022-11-16 12:29:39,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:29:39,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:29:39,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:29:39,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:29:39,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:29:39,130 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 12:29:39,133 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) [2022-11-16 12:29:39,133 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:29:39,133 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 12:29:39,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:29:47,969 INFO L130 PetriNetUnfolder]: 3765/7244 cut-off events. [2022-11-16 12:29:47,969 INFO L131 PetriNetUnfolder]: For 482700/482756 co-relation queries the response was YES. [2022-11-16 12:29:48,035 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. [2022-11-16 12:29:48,094 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 663 selfloop transitions, 559 changer transitions 0/1333 dead transitions. [2022-11-16 12:29:48,094 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 482 places, 1333 transitions, 46117 flow [2022-11-16 12:29:48,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:29:48,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:29:48,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2771 transitions. [2022-11-16 12:29:48,099 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5609311740890688 [2022-11-16 12:29:48,099 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2771 transitions. [2022-11-16 12:29:48,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2771 transitions. [2022-11-16 12:29:48,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:29:48,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2771 transitions. [2022-11-16 12:29:48,106 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) [2022-11-16 12:29:48,112 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) [2022-11-16 12:29:48,113 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) [2022-11-16 12:29:48,113 INFO L175 Difference]: Start difference. First operand has 463 places, 1191 transitions, 40408 flow. Second operand 20 states and 2771 transitions. [2022-11-16 12:29:48,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 482 places, 1333 transitions, 46117 flow [2022-11-16 12:29:52,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 1333 transitions, 45886 flow, removed 80 selfloop flow, removed 9 redundant places. [2022-11-16 12:29:52,474 INFO L231 Difference]: Finished difference. Result has 479 places, 1244 transitions, 43972 flow [2022-11-16 12:29:52,475 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} [2022-11-16 12:29:52,476 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 234 predicate places. [2022-11-16 12:29:52,476 INFO L495 AbstractCegarLoop]: Abstraction has has 479 places, 1244 transitions, 43972 flow [2022-11-16 12:29:52,477 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) [2022-11-16 12:29:52,477 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:29:52,477 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] [2022-11-16 12:29:52,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-16 12:29:52,477 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)] === [2022-11-16 12:29:52,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:29:52,478 INFO L85 PathProgramCache]: Analyzing trace with hash 540071919, now seen corresponding path program 17 times [2022-11-16 12:29:52,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:29:52,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77948488] [2022-11-16 12:29:52,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:29:52,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:29:52,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:54,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:29:54,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:29:54,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77948488] [2022-11-16 12:29:54,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77948488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:29:54,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:29:54,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:29:54,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531477374] [2022-11-16 12:29:54,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:29:54,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:29:54,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:29:54,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:29:54,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:29:54,366 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 12:29:54,368 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) [2022-11-16 12:29:54,368 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:29:54,368 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 12:29:54,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:30:03,493 INFO L130 PetriNetUnfolder]: 3854/7403 cut-off events. [2022-11-16 12:30:03,494 INFO L131 PetriNetUnfolder]: For 526859/526873 co-relation queries the response was YES. [2022-11-16 12:30:03,592 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. [2022-11-16 12:30:03,652 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 679 selfloop transitions, 582 changer transitions 0/1372 dead transitions. [2022-11-16 12:30:03,652 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 498 places, 1372 transitions, 49160 flow [2022-11-16 12:30:03,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:30:03,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:30:03,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2768 transitions. [2022-11-16 12:30:03,657 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5603238866396761 [2022-11-16 12:30:03,657 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2768 transitions. [2022-11-16 12:30:03,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2768 transitions. [2022-11-16 12:30:03,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:30:03,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2768 transitions. [2022-11-16 12:30:03,661 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) [2022-11-16 12:30:03,664 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) [2022-11-16 12:30:03,665 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) [2022-11-16 12:30:03,665 INFO L175 Difference]: Start difference. First operand has 479 places, 1244 transitions, 43972 flow. Second operand 20 states and 2768 transitions. [2022-11-16 12:30:03,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 498 places, 1372 transitions, 49160 flow [2022-11-16 12:30:08,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 486 places, 1372 transitions, 48680 flow, removed 162 selfloop flow, removed 12 redundant places. [2022-11-16 12:30:08,756 INFO L231 Difference]: Finished difference. Result has 493 places, 1283 transitions, 47063 flow [2022-11-16 12:30:08,757 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} [2022-11-16 12:30:08,757 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 248 predicate places. [2022-11-16 12:30:08,757 INFO L495 AbstractCegarLoop]: Abstraction has has 493 places, 1283 transitions, 47063 flow [2022-11-16 12:30:08,758 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) [2022-11-16 12:30:08,758 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:30:08,758 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] [2022-11-16 12:30:08,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-16 12:30:08,758 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)] === [2022-11-16 12:30:08,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:08,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1889511119, now seen corresponding path program 18 times [2022-11-16 12:30:08,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:30:08,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531824491] [2022-11-16 12:30:08,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:08,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:30:08,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:30:10,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:30:10,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:30:10,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531824491] [2022-11-16 12:30:10,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531824491] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:30:10,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:30:10,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:30:10,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426876424] [2022-11-16 12:30:10,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:30:10,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:30:10,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:30:10,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:30:10,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:30:10,618 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 12:30:10,620 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) [2022-11-16 12:30:10,620 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:30:10,620 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 12:30:10,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:30:19,855 INFO L130 PetriNetUnfolder]: 3894/7586 cut-off events. [2022-11-16 12:30:19,855 INFO L131 PetriNetUnfolder]: For 561977/562019 co-relation queries the response was YES. [2022-11-16 12:30:19,929 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. [2022-11-16 12:30:19,988 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 691 selfloop transitions, 586 changer transitions 0/1388 dead transitions. [2022-11-16 12:30:19,989 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 512 places, 1388 transitions, 51081 flow [2022-11-16 12:30:19,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:30:19,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:30:19,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2767 transitions. [2022-11-16 12:30:19,994 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5601214574898785 [2022-11-16 12:30:19,994 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2767 transitions. [2022-11-16 12:30:19,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2767 transitions. [2022-11-16 12:30:19,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:30:19,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2767 transitions. [2022-11-16 12:30:20,000 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) [2022-11-16 12:30:20,005 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) [2022-11-16 12:30:20,007 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) [2022-11-16 12:30:20,007 INFO L175 Difference]: Start difference. First operand has 493 places, 1283 transitions, 47063 flow. Second operand 20 states and 2767 transitions. [2022-11-16 12:30:20,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 512 places, 1388 transitions, 51081 flow [2022-11-16 12:30:25,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 501 places, 1388 transitions, 50796 flow, removed 92 selfloop flow, removed 11 redundant places. [2022-11-16 12:30:25,694 INFO L231 Difference]: Finished difference. Result has 505 places, 1299 transitions, 49278 flow [2022-11-16 12:30:25,695 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} [2022-11-16 12:30:25,696 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 260 predicate places. [2022-11-16 12:30:25,696 INFO L495 AbstractCegarLoop]: Abstraction has has 505 places, 1299 transitions, 49278 flow [2022-11-16 12:30:25,697 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) [2022-11-16 12:30:25,697 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:30:25,697 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] [2022-11-16 12:30:25,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-16 12:30:25,697 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)] === [2022-11-16 12:30:25,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:25,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1453306673, now seen corresponding path program 19 times [2022-11-16 12:30:25,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:30:25,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643846513] [2022-11-16 12:30:25,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:25,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:30:25,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:30:27,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:30:27,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:30:27,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643846513] [2022-11-16 12:30:27,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643846513] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:30:27,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:30:27,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:30:27,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120572000] [2022-11-16 12:30:27,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:30:27,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:30:27,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:30:27,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:30:27,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:30:27,351 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 12:30:27,354 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) [2022-11-16 12:30:27,354 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:30:27,354 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 12:30:27,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:30:36,877 INFO L130 PetriNetUnfolder]: 3898/7509 cut-off events. [2022-11-16 12:30:36,878 INFO L131 PetriNetUnfolder]: For 609217/609273 co-relation queries the response was YES. [2022-11-16 12:30:36,957 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. [2022-11-16 12:30:37,022 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 702 selfloop transitions, 593 changer transitions 0/1406 dead transitions. [2022-11-16 12:30:37,022 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 524 places, 1406 transitions, 53627 flow [2022-11-16 12:30:37,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:30:37,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:30:37,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2769 transitions. [2022-11-16 12:30:37,028 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5605263157894737 [2022-11-16 12:30:37,028 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2769 transitions. [2022-11-16 12:30:37,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2769 transitions. [2022-11-16 12:30:37,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:30:37,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2769 transitions. [2022-11-16 12:30:37,034 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) [2022-11-16 12:30:37,040 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) [2022-11-16 12:30:37,041 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) [2022-11-16 12:30:37,042 INFO L175 Difference]: Start difference. First operand has 505 places, 1299 transitions, 49278 flow. Second operand 20 states and 2769 transitions. [2022-11-16 12:30:37,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 524 places, 1406 transitions, 53627 flow [2022-11-16 12:30:43,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 511 places, 1406 transitions, 53114 flow, removed 157 selfloop flow, removed 13 redundant places. [2022-11-16 12:30:43,189 INFO L231 Difference]: Finished difference. Result has 516 places, 1324 transitions, 51333 flow [2022-11-16 12:30:43,190 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} [2022-11-16 12:30:43,191 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 271 predicate places. [2022-11-16 12:30:43,191 INFO L495 AbstractCegarLoop]: Abstraction has has 516 places, 1324 transitions, 51333 flow [2022-11-16 12:30:43,191 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) [2022-11-16 12:30:43,192 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:30:43,192 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] [2022-11-16 12:30:43,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-16 12:30:43,192 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)] === [2022-11-16 12:30:43,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:43,193 INFO L85 PathProgramCache]: Analyzing trace with hash -304435319, now seen corresponding path program 20 times [2022-11-16 12:30:43,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:30:43,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206362182] [2022-11-16 12:30:43,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:43,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:30:43,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:30:44,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:30:44,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:30:44,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206362182] [2022-11-16 12:30:44,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206362182] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:30:44,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:30:44,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:30:44,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108319879] [2022-11-16 12:30:44,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:30:44,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:30:44,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:30:44,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:30:44,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:30:44,860 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 12:30:44,862 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) [2022-11-16 12:30:44,863 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:30:44,863 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 12:30:44,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:30:53,589 INFO L130 PetriNetUnfolder]: 3944/7687 cut-off events. [2022-11-16 12:30:53,589 INFO L131 PetriNetUnfolder]: For 637167/637209 co-relation queries the response was YES. [2022-11-16 12:30:53,668 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. [2022-11-16 12:30:53,733 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 711 selfloop transitions, 599 changer transitions 0/1421 dead transitions. [2022-11-16 12:30:53,733 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 534 places, 1421 transitions, 55619 flow [2022-11-16 12:30:53,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 12:30:53,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-16 12:30:53,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2631 transitions. [2022-11-16 12:30:53,737 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.560622203281483 [2022-11-16 12:30:53,737 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2631 transitions. [2022-11-16 12:30:53,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2631 transitions. [2022-11-16 12:30:53,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:30:53,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2631 transitions. [2022-11-16 12:30:53,742 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) [2022-11-16 12:30:53,747 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) [2022-11-16 12:30:53,748 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) [2022-11-16 12:30:53,748 INFO L175 Difference]: Start difference. First operand has 516 places, 1324 transitions, 51333 flow. Second operand 19 states and 2631 transitions. [2022-11-16 12:30:53,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 534 places, 1421 transitions, 55619 flow [2022-11-16 12:30:59,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 522 places, 1421 transitions, 55294 flow, removed 61 selfloop flow, removed 12 redundant places. [2022-11-16 12:30:59,699 INFO L231 Difference]: Finished difference. Result has 527 places, 1343 transitions, 53966 flow [2022-11-16 12:30:59,700 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} [2022-11-16 12:30:59,700 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 282 predicate places. [2022-11-16 12:30:59,701 INFO L495 AbstractCegarLoop]: Abstraction has has 527 places, 1343 transitions, 53966 flow [2022-11-16 12:30:59,701 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) [2022-11-16 12:30:59,701 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:30:59,702 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] [2022-11-16 12:30:59,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-16 12:30:59,702 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)] === [2022-11-16 12:30:59,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:59,703 INFO L85 PathProgramCache]: Analyzing trace with hash 328509563, now seen corresponding path program 21 times [2022-11-16 12:30:59,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:30:59,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296085147] [2022-11-16 12:30:59,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:59,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:30:59,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:01,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:31:01,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:31:01,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296085147] [2022-11-16 12:31:01,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296085147] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:31:01,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:31:01,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:31:01,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008969851] [2022-11-16 12:31:01,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:31:01,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:31:01,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:31:01,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:31:01,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:31:01,459 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 12:31:01,461 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) [2022-11-16 12:31:01,461 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:31:01,462 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 12:31:01,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:31:11,108 INFO L130 PetriNetUnfolder]: 3948/7597 cut-off events. [2022-11-16 12:31:11,108 INFO L131 PetriNetUnfolder]: For 689096/689110 co-relation queries the response was YES. [2022-11-16 12:31:11,187 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. [2022-11-16 12:31:11,252 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 716 selfloop transitions, 615 changer transitions 0/1442 dead transitions. [2022-11-16 12:31:11,252 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 546 places, 1442 transitions, 58263 flow [2022-11-16 12:31:11,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:31:11,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:31:11,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2766 transitions. [2022-11-16 12:31:11,256 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.559919028340081 [2022-11-16 12:31:11,256 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2766 transitions. [2022-11-16 12:31:11,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2766 transitions. [2022-11-16 12:31:11,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:31:11,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2766 transitions. [2022-11-16 12:31:11,261 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) [2022-11-16 12:31:11,267 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) [2022-11-16 12:31:11,268 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) [2022-11-16 12:31:11,268 INFO L175 Difference]: Start difference. First operand has 527 places, 1343 transitions, 53966 flow. Second operand 20 states and 2766 transitions. [2022-11-16 12:31:11,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 546 places, 1442 transitions, 58263 flow [2022-11-16 12:31:17,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 534 places, 1442 transitions, 57570 flow, removed 246 selfloop flow, removed 12 redundant places. [2022-11-16 12:31:17,980 INFO L231 Difference]: Finished difference. Result has 538 places, 1363 transitions, 55767 flow [2022-11-16 12:31:17,981 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} [2022-11-16 12:31:17,982 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 293 predicate places. [2022-11-16 12:31:17,983 INFO L495 AbstractCegarLoop]: Abstraction has has 538 places, 1363 transitions, 55767 flow [2022-11-16 12:31:17,983 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) [2022-11-16 12:31:17,983 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:31:17,984 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] [2022-11-16 12:31:17,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-16 12:31:17,984 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)] === [2022-11-16 12:31:17,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:17,985 INFO L85 PathProgramCache]: Analyzing trace with hash -962838995, now seen corresponding path program 22 times [2022-11-16 12:31:17,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:31:17,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666567158] [2022-11-16 12:31:17,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:17,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:31:18,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:19,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:31:19,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:31:19,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666567158] [2022-11-16 12:31:19,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666567158] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:31:19,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:31:19,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:31:19,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717467131] [2022-11-16 12:31:19,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:31:19,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:31:19,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:31:19,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:31:19,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:31:19,678 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 12:31:19,679 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) [2022-11-16 12:31:19,679 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:31:19,679 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 12:31:19,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:31:30,321 INFO L130 PetriNetUnfolder]: 4148/7972 cut-off events. [2022-11-16 12:31:30,321 INFO L131 PetriNetUnfolder]: For 748059/748073 co-relation queries the response was YES. [2022-11-16 12:31:30,418 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. [2022-11-16 12:31:30,489 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 671 selfloop transitions, 728 changer transitions 0/1510 dead transitions. [2022-11-16 12:31:30,489 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 557 places, 1510 transitions, 62574 flow [2022-11-16 12:31:30,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:31:30,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-16 12:31:30,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 2775 transitions. [2022-11-16 12:31:30,494 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5617408906882592 [2022-11-16 12:31:30,494 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 2775 transitions. [2022-11-16 12:31:30,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 2775 transitions. [2022-11-16 12:31:30,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:31:30,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 2775 transitions. [2022-11-16 12:31:30,500 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) [2022-11-16 12:31:30,505 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) [2022-11-16 12:31:30,506 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) [2022-11-16 12:31:30,506 INFO L175 Difference]: Start difference. First operand has 538 places, 1363 transitions, 55767 flow. Second operand 20 states and 2775 transitions. [2022-11-16 12:31:30,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 557 places, 1510 transitions, 62574 flow [2022-11-16 12:31:38,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 1510 transitions, 62306 flow, removed 27 selfloop flow, removed 13 redundant places. [2022-11-16 12:31:38,514 INFO L231 Difference]: Finished difference. Result has 553 places, 1436 transitions, 61465 flow [2022-11-16 12:31:38,516 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} [2022-11-16 12:31:38,517 INFO L288 CegarLoopForPetriNet]: 245 programPoint places, 308 predicate places. [2022-11-16 12:31:38,517 INFO L495 AbstractCegarLoop]: Abstraction has has 553 places, 1436 transitions, 61465 flow [2022-11-16 12:31:38,517 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) [2022-11-16 12:31:38,518 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:31:38,518 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] [2022-11-16 12:31:38,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-16 12:31:38,518 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)] === [2022-11-16 12:31:38,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:38,519 INFO L85 PathProgramCache]: Analyzing trace with hash 747870101, now seen corresponding path program 23 times [2022-11-16 12:31:38,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:31:38,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759726810] [2022-11-16 12:31:38,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:38,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:31:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:40,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:31:40,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:31:40,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759726810] [2022-11-16 12:31:40,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759726810] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:31:40,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:31:40,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:31:40,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589879729] [2022-11-16 12:31:40,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:31:40,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:31:40,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:31:40,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:31:40,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:31:40,071 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 247 [2022-11-16 12:31:40,074 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) [2022-11-16 12:31:40,074 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:31:40,074 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 247 [2022-11-16 12:31:40,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:31:50,464 INFO L130 PetriNetUnfolder]: 4194/8053 cut-off events. [2022-11-16 12:31:50,464 INFO L131 PetriNetUnfolder]: For 827399/827455 co-relation queries the response was YES. [2022-11-16 12:31:50,572 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. [2022-11-16 12:31:50,673 INFO L137 encePairwiseOnDemand]: 226/247 looper letters, 668 selfloop transitions, 750 changer transitions 0/1529 dead transitions. [2022-11-16 12:31:50,673 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 571 places, 1529 transitions, 66095 flow [2022-11-16 12:31:50,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 12:31:50,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2022-11-16 12:31:50,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2631 transitions. [2022-11-16 12:31:50,678 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.560622203281483 [2022-11-16 12:31:50,678 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2631 transitions. [2022-11-16 12:31:50,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2631 transitions. [2022-11-16 12:31:50,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:31:50,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2631 transitions. [2022-11-16 12:31:50,683 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) [2022-11-16 12:31:50,690 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) [2022-11-16 12:31:50,691 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) [2022-11-16 12:31:50,691 INFO L175 Difference]: Start difference. First operand has 553 places, 1436 transitions, 61465 flow. Second operand 19 states and 2631 transitions. [2022-11-16 12:31:50,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 571 places, 1529 transitions, 66095 flow