./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3520049-a511-4a18-9e7a-45dadcb8ba1e/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3520049-a511-4a18-9e7a-45dadcb8ba1e/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3520049-a511-4a18-9e7a-45dadcb8ba1e/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3520049-a511-4a18-9e7a-45dadcb8ba1e/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3520049-a511-4a18-9e7a-45dadcb8ba1e/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3520049-a511-4a18-9e7a-45dadcb8ba1e/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7a18ee378e36a8b6ec16846ba26aa7ebab799f55311c04bb5b266d3aa0d0986d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:31:14,816 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:31:14,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:31:14,837 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:31:14,838 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:31:14,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:31:14,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:31:14,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:31:14,844 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:31:14,845 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:31:14,846 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:31:14,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:31:14,848 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:31:14,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:31:14,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:31:14,851 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:31:14,852 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:31:14,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:31:14,855 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:31:14,857 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:31:14,858 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:31:14,860 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:31:14,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:31:14,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:31:14,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:31:14,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:31:14,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:31:14,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:31:14,868 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:31:14,869 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:31:14,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:31:14,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:31:14,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:31:14,872 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:31:14,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:31:14,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:31:14,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:31:14,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:31:14,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:31:14,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:31:14,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:31:14,881 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3520049-a511-4a18-9e7a-45dadcb8ba1e/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 20:31:14,918 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:31:14,918 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:31:14,918 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:31:14,919 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:31:14,919 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:31:14,919 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:31:14,920 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:31:14,920 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:31:14,920 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:31:14,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:31:14,920 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:31:14,921 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:31:14,921 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:31:14,921 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:31:14,921 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:31:14,921 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:31:14,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:31:14,922 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:31:14,922 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 20:31:14,922 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:31:14,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:31:14,922 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:31:14,922 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:31:14,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:31:14,923 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:31:14,923 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:31:14,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:31:14,923 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:31:14,924 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:31:14,924 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:31:14,924 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:31:14,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:31:14,924 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:31:14,924 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:31:14,925 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:31:14,925 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_e3520049-a511-4a18-9e7a-45dadcb8ba1e/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3520049-a511-4a18-9e7a-45dadcb8ba1e/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a18ee378e36a8b6ec16846ba26aa7ebab799f55311c04bb5b266d3aa0d0986d [2022-11-18 20:31:15,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:31:15,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:31:15,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:31:15,279 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:31:15,280 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:31:15,281 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3520049-a511-4a18-9e7a-45dadcb8ba1e/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c [2022-11-18 20:31:15,382 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3520049-a511-4a18-9e7a-45dadcb8ba1e/bin/uautomizer-TMbwUNV5ro/data/2fb4a50a9/9f6165ed5a6743e481a1bfe353f61aca/FLAG935a9e28e [2022-11-18 20:31:15,972 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:31:15,973 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3520049-a511-4a18-9e7a-45dadcb8ba1e/sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c [2022-11-18 20:31:15,980 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3520049-a511-4a18-9e7a-45dadcb8ba1e/bin/uautomizer-TMbwUNV5ro/data/2fb4a50a9/9f6165ed5a6743e481a1bfe353f61aca/FLAG935a9e28e [2022-11-18 20:31:16,321 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3520049-a511-4a18-9e7a-45dadcb8ba1e/bin/uautomizer-TMbwUNV5ro/data/2fb4a50a9/9f6165ed5a6743e481a1bfe353f61aca [2022-11-18 20:31:16,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:31:16,326 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:31:16,328 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:31:16,328 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:31:16,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:31:16,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:31:16" (1/1) ... [2022-11-18 20:31:16,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69e55bf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:16, skipping insertion in model container [2022-11-18 20:31:16,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:31:16" (1/1) ... [2022-11-18 20:31:16,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:31:16,400 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:31:16,773 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3520049-a511-4a18-9e7a-45dadcb8ba1e/sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c[4788,4801] [2022-11-18 20:31:16,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:31:16,802 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:31:16,908 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3520049-a511-4a18-9e7a-45dadcb8ba1e/sv-benchmarks/c/weaver/chl-name-comparator-trans.wvr.c[4788,4801] [2022-11-18 20:31:16,913 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:31:16,934 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:31:16,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:16 WrapperNode [2022-11-18 20:31:16,935 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:31:16,936 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:31:16,936 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:31:16,937 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:31:16,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:16" (1/1) ... [2022-11-18 20:31:16,960 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:16" (1/1) ... [2022-11-18 20:31:17,004 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 17, calls inlined = 21, statements flattened = 850 [2022-11-18 20:31:17,004 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:31:17,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:31:17,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:31:17,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:31:17,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:16" (1/1) ... [2022-11-18 20:31:17,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:16" (1/1) ... [2022-11-18 20:31:17,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:16" (1/1) ... [2022-11-18 20:31:17,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:16" (1/1) ... [2022-11-18 20:31:17,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:16" (1/1) ... [2022-11-18 20:31:17,062 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:16" (1/1) ... [2022-11-18 20:31:17,075 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:16" (1/1) ... [2022-11-18 20:31:17,078 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:16" (1/1) ... [2022-11-18 20:31:17,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:31:17,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:31:17,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:31:17,097 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:31:17,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:16" (1/1) ... [2022-11-18 20:31:17,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:31:17,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3520049-a511-4a18-9e7a-45dadcb8ba1e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:17,132 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3520049-a511-4a18-9e7a-45dadcb8ba1e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:31:17,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3520049-a511-4a18-9e7a-45dadcb8ba1e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:31:17,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:31:17,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:31:17,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:31:17,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:31:17,182 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 20:31:17,184 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 20:31:17,185 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 20:31:17,186 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 20:31:17,186 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 20:31:17,186 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 20:31:17,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:31:17,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:31:17,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:31:17,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:31:17,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:31:17,189 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 20:31:17,452 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:31:17,459 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:31:18,734 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:31:18,764 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:31:18,768 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-18 20:31:18,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:31:18 BoogieIcfgContainer [2022-11-18 20:31:18,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:31:18,776 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:31:18,776 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:31:18,780 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:31:18,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:31:16" (1/3) ... [2022-11-18 20:31:18,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3194b623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:31:18, skipping insertion in model container [2022-11-18 20:31:18,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:31:16" (2/3) ... [2022-11-18 20:31:18,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3194b623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:31:18, skipping insertion in model container [2022-11-18 20:31:18,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:31:18" (3/3) ... [2022-11-18 20:31:18,784 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-name-comparator-trans.wvr.c [2022-11-18 20:31:18,803 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 20:31:18,815 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:31:18,815 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 152 error locations. [2022-11-18 20:31:18,815 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 20:31:19,065 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 20:31:19,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1063 places, 1111 transitions, 2246 flow [2022-11-18 20:31:20,058 INFO L130 PetriNetUnfolder]: 58/1108 cut-off events. [2022-11-18 20:31:20,059 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 20:31:20,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1121 conditions, 1108 events. 58/1108 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3890 event pairs, 0 based on Foata normal form. 0/898 useless extension candidates. Maximal degree in co-relation 851. Up to 2 conditions per place. [2022-11-18 20:31:20,111 INFO L82 GeneralOperation]: Start removeDead. Operand has 1063 places, 1111 transitions, 2246 flow [2022-11-18 20:31:20,185 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1038 places, 1084 transitions, 2186 flow [2022-11-18 20:31:20,201 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:31:20,211 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;@773173bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:31:20,211 INFO L358 AbstractCegarLoop]: Starting to check reachability of 284 error locations. [2022-11-18 20:31:20,217 INFO L130 PetriNetUnfolder]: 0/35 cut-off events. [2022-11-18 20:31:20,217 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 20:31:20,217 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:20,218 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:20,219 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-18 20:31:20,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:20,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1081308416, now seen corresponding path program 1 times [2022-11-18 20:31:20,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:20,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748947379] [2022-11-18 20:31:20,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:20,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:20,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:20,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:20,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748947379] [2022-11-18 20:31:20,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748947379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:20,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:20,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:31:20,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52506861] [2022-11-18 20:31:20,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:20,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:31:20,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:20,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:31:20,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:31:20,612 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1049 out of 1111 [2022-11-18 20:31:20,627 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1038 places, 1084 transitions, 2186 flow. Second operand has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:20,627 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:20,627 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1049 of 1111 [2022-11-18 20:31:20,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:27,098 INFO L130 PetriNetUnfolder]: 701/8730 cut-off events. [2022-11-18 20:31:27,098 INFO L131 PetriNetUnfolder]: For 186/186 co-relation queries the response was YES. [2022-11-18 20:31:27,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9517 conditions, 8730 events. 701/8730 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 81443 event pairs, 285 based on Foata normal form. 1280/8064 useless extension candidates. Maximal degree in co-relation 8543. Up to 664 conditions per place. [2022-11-18 20:31:27,822 INFO L137 encePairwiseOnDemand]: 1090/1111 looper letters, 39 selfloop transitions, 2 changer transitions 2/1065 dead transitions. [2022-11-18 20:31:27,823 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1039 places, 1065 transitions, 2230 flow [2022-11-18 20:31:27,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:31:27,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:31:27,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3207 transitions. [2022-11-18 20:31:27,853 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9621962196219622 [2022-11-18 20:31:27,854 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3207 transitions. [2022-11-18 20:31:27,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3207 transitions. [2022-11-18 20:31:27,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:27,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3207 transitions. [2022-11-18 20:31:27,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1069.0) internal successors, (3207), 3 states have internal predecessors, (3207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:27,892 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:27,897 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:27,899 INFO L175 Difference]: Start difference. First operand has 1038 places, 1084 transitions, 2186 flow. Second operand 3 states and 3207 transitions. [2022-11-18 20:31:27,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1039 places, 1065 transitions, 2230 flow [2022-11-18 20:31:27,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1033 places, 1065 transitions, 2218 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 20:31:27,938 INFO L231 Difference]: Finished difference. Result has 1033 places, 1063 transitions, 2136 flow [2022-11-18 20:31:27,942 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2136, PETRI_DIFFERENCE_MINUEND_PLACES=1031, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1065, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1063, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2136, PETRI_PLACES=1033, PETRI_TRANSITIONS=1063} [2022-11-18 20:31:27,947 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -5 predicate places. [2022-11-18 20:31:27,947 INFO L495 AbstractCegarLoop]: Abstraction has has 1033 places, 1063 transitions, 2136 flow [2022-11-18 20:31:27,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:27,950 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:27,950 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:27,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:31:27,951 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-18 20:31:27,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:27,952 INFO L85 PathProgramCache]: Analyzing trace with hash 174051869, now seen corresponding path program 1 times [2022-11-18 20:31:27,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:27,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355611165] [2022-11-18 20:31:27,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:27,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:27,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:28,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:28,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:28,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355611165] [2022-11-18 20:31:28,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355611165] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:28,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:28,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:31:28,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90790046] [2022-11-18 20:31:28,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:28,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:31:28,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:28,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:31:28,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:31:28,072 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1049 out of 1111 [2022-11-18 20:31:28,078 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1033 places, 1063 transitions, 2136 flow. Second operand has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:28,083 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:28,083 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1049 of 1111 [2022-11-18 20:31:28,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:34,341 INFO L130 PetriNetUnfolder]: 1464/15281 cut-off events. [2022-11-18 20:31:34,341 INFO L131 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2022-11-18 20:31:34,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16937 conditions, 15281 events. 1464/15281 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 160305 event pairs, 735 based on Foata normal form. 0/11868 useless extension candidates. Maximal degree in co-relation 16893. Up to 1377 conditions per place. [2022-11-18 20:31:35,097 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 39 selfloop transitions, 2 changer transitions 0/1062 dead transitions. [2022-11-18 20:31:35,097 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1032 places, 1062 transitions, 2216 flow [2022-11-18 20:31:35,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:31:35,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:31:35,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3189 transitions. [2022-11-18 20:31:35,107 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9567956795679567 [2022-11-18 20:31:35,107 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3189 transitions. [2022-11-18 20:31:35,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3189 transitions. [2022-11-18 20:31:35,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:35,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3189 transitions. [2022-11-18 20:31:35,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1063.0) internal successors, (3189), 3 states have internal predecessors, (3189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:35,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:35,131 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:35,131 INFO L175 Difference]: Start difference. First operand has 1033 places, 1063 transitions, 2136 flow. Second operand 3 states and 3189 transitions. [2022-11-18 20:31:35,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1032 places, 1062 transitions, 2216 flow [2022-11-18 20:31:35,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1030 places, 1062 transitions, 2212 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:31:35,153 INFO L231 Difference]: Finished difference. Result has 1030 places, 1062 transitions, 2134 flow [2022-11-18 20:31:35,156 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2130, PETRI_DIFFERENCE_MINUEND_PLACES=1028, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1062, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1060, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2134, PETRI_PLACES=1030, PETRI_TRANSITIONS=1062} [2022-11-18 20:31:35,157 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -8 predicate places. [2022-11-18 20:31:35,157 INFO L495 AbstractCegarLoop]: Abstraction has has 1030 places, 1062 transitions, 2134 flow [2022-11-18 20:31:35,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:35,160 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:35,160 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:35,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:31:35,160 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-18 20:31:35,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:35,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1670486049, now seen corresponding path program 1 times [2022-11-18 20:31:35,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:35,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34476006] [2022-11-18 20:31:35,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:35,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:35,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:35,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:35,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:35,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34476006] [2022-11-18 20:31:35,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34476006] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:35,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:35,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:31:35,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449881810] [2022-11-18 20:31:35,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:35,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:31:35,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:35,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:31:35,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:31:35,298 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1049 out of 1111 [2022-11-18 20:31:35,303 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1030 places, 1062 transitions, 2134 flow. Second operand has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:35,303 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:35,303 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1049 of 1111 [2022-11-18 20:31:35,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:41,631 INFO L130 PetriNetUnfolder]: 1490/15195 cut-off events. [2022-11-18 20:31:41,632 INFO L131 PetriNetUnfolder]: For 288/351 co-relation queries the response was YES. [2022-11-18 20:31:41,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16633 conditions, 15195 events. 1490/15195 cut-off events. For 288/351 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 163604 event pairs, 735 based on Foata normal form. 0/11772 useless extension candidates. Maximal degree in co-relation 16582. Up to 1414 conditions per place. [2022-11-18 20:31:42,393 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 39 selfloop transitions, 2 changer transitions 0/1061 dead transitions. [2022-11-18 20:31:42,393 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1031 places, 1061 transitions, 2214 flow [2022-11-18 20:31:42,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:31:42,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:31:42,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3189 transitions. [2022-11-18 20:31:42,404 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9567956795679567 [2022-11-18 20:31:42,404 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3189 transitions. [2022-11-18 20:31:42,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3189 transitions. [2022-11-18 20:31:42,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:42,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3189 transitions. [2022-11-18 20:31:42,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1063.0) internal successors, (3189), 3 states have internal predecessors, (3189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:42,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:42,427 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:42,428 INFO L175 Difference]: Start difference. First operand has 1030 places, 1062 transitions, 2134 flow. Second operand 3 states and 3189 transitions. [2022-11-18 20:31:42,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1031 places, 1061 transitions, 2214 flow [2022-11-18 20:31:42,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1029 places, 1061 transitions, 2210 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:31:42,448 INFO L231 Difference]: Finished difference. Result has 1029 places, 1061 transitions, 2132 flow [2022-11-18 20:31:42,450 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2128, PETRI_DIFFERENCE_MINUEND_PLACES=1027, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1061, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1059, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2132, PETRI_PLACES=1029, PETRI_TRANSITIONS=1061} [2022-11-18 20:31:42,453 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -9 predicate places. [2022-11-18 20:31:42,453 INFO L495 AbstractCegarLoop]: Abstraction has has 1029 places, 1061 transitions, 2132 flow [2022-11-18 20:31:42,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1050.3333333333333) internal successors, (3151), 3 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:42,456 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:42,456 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:42,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:31:42,457 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-18 20:31:42,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:42,458 INFO L85 PathProgramCache]: Analyzing trace with hash 585370888, now seen corresponding path program 1 times [2022-11-18 20:31:42,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:42,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606624777] [2022-11-18 20:31:42,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:42,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:42,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:42,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:42,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:42,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606624777] [2022-11-18 20:31:42,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606624777] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:42,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:42,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:31:42,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588822515] [2022-11-18 20:31:42,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:42,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:31:42,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:42,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:31:42,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:31:42,565 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1052 out of 1111 [2022-11-18 20:31:42,570 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1029 places, 1061 transitions, 2132 flow. Second operand has 3 states, 3 states have (on average 1053.3333333333333) internal successors, (3160), 3 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:42,570 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:42,570 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1052 of 1111 [2022-11-18 20:31:42,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:43,867 INFO L130 PetriNetUnfolder]: 158/2710 cut-off events. [2022-11-18 20:31:43,867 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 20:31:43,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2902 conditions, 2710 events. 158/2710 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 18425 event pairs, 48 based on Foata normal form. 0/2159 useless extension candidates. Maximal degree in co-relation 2844. Up to 135 conditions per place. [2022-11-18 20:31:43,953 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 36 selfloop transitions, 2 changer transitions 0/1060 dead transitions. [2022-11-18 20:31:43,953 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1030 places, 1060 transitions, 2206 flow [2022-11-18 20:31:43,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:31:43,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:31:43,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3195 transitions. [2022-11-18 20:31:43,960 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9585958595859586 [2022-11-18 20:31:43,961 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3195 transitions. [2022-11-18 20:31:43,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3195 transitions. [2022-11-18 20:31:43,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:43,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3195 transitions. [2022-11-18 20:31:43,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1065.0) internal successors, (3195), 3 states have internal predecessors, (3195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:43,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:43,982 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:43,983 INFO L175 Difference]: Start difference. First operand has 1029 places, 1061 transitions, 2132 flow. Second operand 3 states and 3195 transitions. [2022-11-18 20:31:43,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1030 places, 1060 transitions, 2206 flow [2022-11-18 20:31:43,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1028 places, 1060 transitions, 2202 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:31:44,001 INFO L231 Difference]: Finished difference. Result has 1028 places, 1060 transitions, 2130 flow [2022-11-18 20:31:44,003 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2126, PETRI_DIFFERENCE_MINUEND_PLACES=1026, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1060, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1058, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2130, PETRI_PLACES=1028, PETRI_TRANSITIONS=1060} [2022-11-18 20:31:44,003 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -10 predicate places. [2022-11-18 20:31:44,004 INFO L495 AbstractCegarLoop]: Abstraction has has 1028 places, 1060 transitions, 2130 flow [2022-11-18 20:31:44,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1053.3333333333333) internal successors, (3160), 3 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:44,005 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:44,005 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:44,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:31:44,006 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-18 20:31:44,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:44,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1211814862, now seen corresponding path program 1 times [2022-11-18 20:31:44,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:44,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902595085] [2022-11-18 20:31:44,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:44,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:44,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:44,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:44,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:44,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902595085] [2022-11-18 20:31:44,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902595085] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:44,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:44,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:31:44,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853521298] [2022-11-18 20:31:44,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:44,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:31:44,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:44,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:31:44,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:31:44,100 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1061 out of 1111 [2022-11-18 20:31:44,104 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1028 places, 1060 transitions, 2130 flow. Second operand has 3 states, 3 states have (on average 1062.3333333333333) internal successors, (3187), 3 states have internal predecessors, (3187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:44,104 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:44,104 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1061 of 1111 [2022-11-18 20:31:44,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:44,750 INFO L130 PetriNetUnfolder]: 98/1629 cut-off events. [2022-11-18 20:31:44,750 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 20:31:44,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1774 conditions, 1629 events. 98/1629 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 8619 event pairs, 36 based on Foata normal form. 0/1309 useless extension candidates. Maximal degree in co-relation 1709. Up to 100 conditions per place. [2022-11-18 20:31:44,814 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 27 selfloop transitions, 2 changer transitions 0/1059 dead transitions. [2022-11-18 20:31:44,814 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1029 places, 1059 transitions, 2186 flow [2022-11-18 20:31:44,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:31:44,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:31:44,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3213 transitions. [2022-11-18 20:31:44,822 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.963996399639964 [2022-11-18 20:31:44,822 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3213 transitions. [2022-11-18 20:31:44,822 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3213 transitions. [2022-11-18 20:31:44,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:44,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3213 transitions. [2022-11-18 20:31:44,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1071.0) internal successors, (3213), 3 states have internal predecessors, (3213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:44,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:44,839 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:44,839 INFO L175 Difference]: Start difference. First operand has 1028 places, 1060 transitions, 2130 flow. Second operand 3 states and 3213 transitions. [2022-11-18 20:31:44,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1029 places, 1059 transitions, 2186 flow [2022-11-18 20:31:44,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1027 places, 1059 transitions, 2182 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:31:44,859 INFO L231 Difference]: Finished difference. Result has 1027 places, 1059 transitions, 2128 flow [2022-11-18 20:31:44,860 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2124, PETRI_DIFFERENCE_MINUEND_PLACES=1025, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1059, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1057, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2128, PETRI_PLACES=1027, PETRI_TRANSITIONS=1059} [2022-11-18 20:31:44,861 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -11 predicate places. [2022-11-18 20:31:44,861 INFO L495 AbstractCegarLoop]: Abstraction has has 1027 places, 1059 transitions, 2128 flow [2022-11-18 20:31:44,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1062.3333333333333) internal successors, (3187), 3 states have internal predecessors, (3187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:44,863 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:44,863 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:44,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:31:44,863 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-18 20:31:44,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:44,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1570649234, now seen corresponding path program 1 times [2022-11-18 20:31:44,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:44,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665921509] [2022-11-18 20:31:44,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:44,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:44,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:44,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:44,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:44,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665921509] [2022-11-18 20:31:44,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665921509] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:44,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:44,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:31:44,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518602512] [2022-11-18 20:31:44,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:44,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:31:44,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:44,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:31:44,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:31:44,913 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1064 out of 1111 [2022-11-18 20:31:44,917 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1027 places, 1059 transitions, 2128 flow. Second operand has 3 states, 3 states have (on average 1065.3333333333333) internal successors, (3196), 3 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:44,917 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:44,917 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1064 of 1111 [2022-11-18 20:31:44,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:46,031 INFO L130 PetriNetUnfolder]: 113/2077 cut-off events. [2022-11-18 20:31:46,031 INFO L131 PetriNetUnfolder]: For 4/6 co-relation queries the response was YES. [2022-11-18 20:31:46,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2204 conditions, 2077 events. 113/2077 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 11133 event pairs, 30 based on Foata normal form. 0/1664 useless extension candidates. Maximal degree in co-relation 2132. Up to 88 conditions per place. [2022-11-18 20:31:46,134 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 24 selfloop transitions, 2 changer transitions 0/1058 dead transitions. [2022-11-18 20:31:46,135 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1028 places, 1058 transitions, 2178 flow [2022-11-18 20:31:46,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:31:46,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:31:46,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3219 transitions. [2022-11-18 20:31:46,144 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9657965796579658 [2022-11-18 20:31:46,144 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3219 transitions. [2022-11-18 20:31:46,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3219 transitions. [2022-11-18 20:31:46,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:46,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3219 transitions. [2022-11-18 20:31:46,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1073.0) internal successors, (3219), 3 states have internal predecessors, (3219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:46,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:46,165 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:46,165 INFO L175 Difference]: Start difference. First operand has 1027 places, 1059 transitions, 2128 flow. Second operand 3 states and 3219 transitions. [2022-11-18 20:31:46,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1028 places, 1058 transitions, 2178 flow [2022-11-18 20:31:46,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1026 places, 1058 transitions, 2174 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:31:46,189 INFO L231 Difference]: Finished difference. Result has 1026 places, 1058 transitions, 2126 flow [2022-11-18 20:31:46,191 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2122, PETRI_DIFFERENCE_MINUEND_PLACES=1024, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1058, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1056, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2126, PETRI_PLACES=1026, PETRI_TRANSITIONS=1058} [2022-11-18 20:31:46,192 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -12 predicate places. [2022-11-18 20:31:46,192 INFO L495 AbstractCegarLoop]: Abstraction has has 1026 places, 1058 transitions, 2126 flow [2022-11-18 20:31:46,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1065.3333333333333) internal successors, (3196), 3 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:46,194 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:46,194 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] [2022-11-18 20:31:46,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:31:46,194 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-18 20:31:46,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:46,195 INFO L85 PathProgramCache]: Analyzing trace with hash 525695634, now seen corresponding path program 1 times [2022-11-18 20:31:46,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:46,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676216388] [2022-11-18 20:31:46,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:46,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:46,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:46,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:46,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:46,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676216388] [2022-11-18 20:31:46,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676216388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:46,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:46,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:31:46,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727256612] [2022-11-18 20:31:46,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:46,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:31:46,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:46,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:31:46,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:31:46,267 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1043 out of 1111 [2022-11-18 20:31:46,272 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1026 places, 1058 transitions, 2126 flow. Second operand has 3 states, 3 states have (on average 1044.3333333333333) internal successors, (3133), 3 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:46,272 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:46,272 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1043 of 1111 [2022-11-18 20:31:46,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:47,190 INFO L130 PetriNetUnfolder]: 158/2203 cut-off events. [2022-11-18 20:31:47,190 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 20:31:47,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2474 conditions, 2203 events. 158/2203 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 14065 event pairs, 72 based on Foata normal form. 0/1771 useless extension candidates. Maximal degree in co-relation 2395. Up to 190 conditions per place. [2022-11-18 20:31:47,261 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 45 selfloop transitions, 2 changer transitions 0/1057 dead transitions. [2022-11-18 20:31:47,261 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1027 places, 1057 transitions, 2218 flow [2022-11-18 20:31:47,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:31:47,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:31:47,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3177 transitions. [2022-11-18 20:31:47,266 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9531953195319532 [2022-11-18 20:31:47,267 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3177 transitions. [2022-11-18 20:31:47,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3177 transitions. [2022-11-18 20:31:47,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:47,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3177 transitions. [2022-11-18 20:31:47,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1059.0) internal successors, (3177), 3 states have internal predecessors, (3177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:47,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:47,281 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:47,281 INFO L175 Difference]: Start difference. First operand has 1026 places, 1058 transitions, 2126 flow. Second operand 3 states and 3177 transitions. [2022-11-18 20:31:47,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1027 places, 1057 transitions, 2218 flow [2022-11-18 20:31:47,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1025 places, 1057 transitions, 2214 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:31:47,299 INFO L231 Difference]: Finished difference. Result has 1025 places, 1057 transitions, 2124 flow [2022-11-18 20:31:47,300 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2120, PETRI_DIFFERENCE_MINUEND_PLACES=1023, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1057, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1055, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2124, PETRI_PLACES=1025, PETRI_TRANSITIONS=1057} [2022-11-18 20:31:47,301 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -13 predicate places. [2022-11-18 20:31:47,301 INFO L495 AbstractCegarLoop]: Abstraction has has 1025 places, 1057 transitions, 2124 flow [2022-11-18 20:31:47,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1044.3333333333333) internal successors, (3133), 3 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:47,303 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:47,303 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] [2022-11-18 20:31:47,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:31:47,303 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-18 20:31:47,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:47,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1197351628, now seen corresponding path program 1 times [2022-11-18 20:31:47,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:47,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583709388] [2022-11-18 20:31:47,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:47,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:47,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:47,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:47,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:47,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583709388] [2022-11-18 20:31:47,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583709388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:47,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:47,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:31:47,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420318783] [2022-11-18 20:31:47,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:47,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:31:47,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:47,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:31:47,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:31:47,349 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1052 out of 1111 [2022-11-18 20:31:47,352 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1025 places, 1057 transitions, 2124 flow. Second operand has 3 states, 3 states have (on average 1053.3333333333333) internal successors, (3160), 3 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:47,353 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:47,353 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1052 of 1111 [2022-11-18 20:31:47,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:48,522 INFO L130 PetriNetUnfolder]: 134/2174 cut-off events. [2022-11-18 20:31:48,522 INFO L131 PetriNetUnfolder]: For 27/77 co-relation queries the response was YES. [2022-11-18 20:31:48,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2342 conditions, 2174 events. 134/2174 cut-off events. For 27/77 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 14545 event pairs, 48 based on Foata normal form. 0/1743 useless extension candidates. Maximal degree in co-relation 2256. Up to 135 conditions per place. [2022-11-18 20:31:48,639 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 36 selfloop transitions, 2 changer transitions 0/1056 dead transitions. [2022-11-18 20:31:48,640 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1026 places, 1056 transitions, 2198 flow [2022-11-18 20:31:48,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:31:48,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:31:48,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3195 transitions. [2022-11-18 20:31:48,650 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9585958595859586 [2022-11-18 20:31:48,650 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3195 transitions. [2022-11-18 20:31:48,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3195 transitions. [2022-11-18 20:31:48,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:48,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3195 transitions. [2022-11-18 20:31:48,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1065.0) internal successors, (3195), 3 states have internal predecessors, (3195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:48,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:48,669 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:48,670 INFO L175 Difference]: Start difference. First operand has 1025 places, 1057 transitions, 2124 flow. Second operand 3 states and 3195 transitions. [2022-11-18 20:31:48,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1026 places, 1056 transitions, 2198 flow [2022-11-18 20:31:48,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1024 places, 1056 transitions, 2194 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:31:48,694 INFO L231 Difference]: Finished difference. Result has 1024 places, 1056 transitions, 2122 flow [2022-11-18 20:31:48,696 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2118, PETRI_DIFFERENCE_MINUEND_PLACES=1022, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1056, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1054, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2122, PETRI_PLACES=1024, PETRI_TRANSITIONS=1056} [2022-11-18 20:31:48,696 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -14 predicate places. [2022-11-18 20:31:48,696 INFO L495 AbstractCegarLoop]: Abstraction has has 1024 places, 1056 transitions, 2122 flow [2022-11-18 20:31:48,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1053.3333333333333) internal successors, (3160), 3 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:48,698 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:48,698 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:48,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:31:48,699 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-18 20:31:48,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:48,699 INFO L85 PathProgramCache]: Analyzing trace with hash 279287825, now seen corresponding path program 1 times [2022-11-18 20:31:48,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:48,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956005009] [2022-11-18 20:31:48,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:48,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:48,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:48,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:48,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:48,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956005009] [2022-11-18 20:31:48,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956005009] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:48,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:48,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:31:48,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904161487] [2022-11-18 20:31:48,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:48,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:31:48,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:48,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:31:48,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:31:48,802 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1061 out of 1111 [2022-11-18 20:31:48,806 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1024 places, 1056 transitions, 2122 flow. Second operand has 3 states, 3 states have (on average 1062.3333333333333) internal successors, (3187), 3 states have internal predecessors, (3187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:48,807 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:48,807 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1061 of 1111 [2022-11-18 20:31:48,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:49,653 INFO L130 PetriNetUnfolder]: 98/1625 cut-off events. [2022-11-18 20:31:49,654 INFO L131 PetriNetUnfolder]: For 21/35 co-relation queries the response was YES. [2022-11-18 20:31:49,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1752 conditions, 1625 events. 98/1625 cut-off events. For 21/35 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9166 event pairs, 36 based on Foata normal form. 0/1302 useless extension candidates. Maximal degree in co-relation 1659. Up to 100 conditions per place. [2022-11-18 20:31:49,731 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 27 selfloop transitions, 2 changer transitions 0/1055 dead transitions. [2022-11-18 20:31:49,731 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1025 places, 1055 transitions, 2178 flow [2022-11-18 20:31:49,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:31:49,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:31:49,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3213 transitions. [2022-11-18 20:31:49,741 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.963996399639964 [2022-11-18 20:31:49,742 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3213 transitions. [2022-11-18 20:31:49,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3213 transitions. [2022-11-18 20:31:49,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:49,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3213 transitions. [2022-11-18 20:31:49,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1071.0) internal successors, (3213), 3 states have internal predecessors, (3213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:49,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:49,760 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:49,760 INFO L175 Difference]: Start difference. First operand has 1024 places, 1056 transitions, 2122 flow. Second operand 3 states and 3213 transitions. [2022-11-18 20:31:49,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1025 places, 1055 transitions, 2178 flow [2022-11-18 20:31:49,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1023 places, 1055 transitions, 2174 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:31:49,784 INFO L231 Difference]: Finished difference. Result has 1023 places, 1055 transitions, 2120 flow [2022-11-18 20:31:49,785 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2116, PETRI_DIFFERENCE_MINUEND_PLACES=1021, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1055, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1053, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2120, PETRI_PLACES=1023, PETRI_TRANSITIONS=1055} [2022-11-18 20:31:49,786 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -15 predicate places. [2022-11-18 20:31:49,786 INFO L495 AbstractCegarLoop]: Abstraction has has 1023 places, 1055 transitions, 2120 flow [2022-11-18 20:31:49,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1062.3333333333333) internal successors, (3187), 3 states have internal predecessors, (3187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:49,788 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:49,788 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:49,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:31:49,788 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-18 20:31:49,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:49,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1986649543, now seen corresponding path program 1 times [2022-11-18 20:31:49,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:49,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885975008] [2022-11-18 20:31:49,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:49,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:49,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:49,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:49,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:49,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885975008] [2022-11-18 20:31:49,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885975008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:49,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:49,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:31:49,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58316112] [2022-11-18 20:31:49,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:49,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:31:49,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:49,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:31:49,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:31:49,870 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1064 out of 1111 [2022-11-18 20:31:49,874 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1023 places, 1055 transitions, 2120 flow. Second operand has 3 states, 3 states have (on average 1065.3333333333333) internal successors, (3196), 3 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:49,874 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:49,874 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1064 of 1111 [2022-11-18 20:31:49,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:50,709 INFO L130 PetriNetUnfolder]: 101/1807 cut-off events. [2022-11-18 20:31:50,709 INFO L131 PetriNetUnfolder]: For 19/21 co-relation queries the response was YES. [2022-11-18 20:31:50,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1919 conditions, 1807 events. 101/1807 cut-off events. For 19/21 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 9661 event pairs, 30 based on Foata normal form. 0/1455 useless extension candidates. Maximal degree in co-relation 1819. Up to 88 conditions per place. [2022-11-18 20:31:50,799 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 24 selfloop transitions, 2 changer transitions 0/1054 dead transitions. [2022-11-18 20:31:50,799 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1024 places, 1054 transitions, 2170 flow [2022-11-18 20:31:50,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:31:50,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:31:50,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3219 transitions. [2022-11-18 20:31:50,804 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9657965796579658 [2022-11-18 20:31:50,804 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3219 transitions. [2022-11-18 20:31:50,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3219 transitions. [2022-11-18 20:31:50,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:50,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3219 transitions. [2022-11-18 20:31:50,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1073.0) internal successors, (3219), 3 states have internal predecessors, (3219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:50,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:50,815 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:50,816 INFO L175 Difference]: Start difference. First operand has 1023 places, 1055 transitions, 2120 flow. Second operand 3 states and 3219 transitions. [2022-11-18 20:31:50,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1024 places, 1054 transitions, 2170 flow [2022-11-18 20:31:50,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1022 places, 1054 transitions, 2166 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:31:50,834 INFO L231 Difference]: Finished difference. Result has 1022 places, 1054 transitions, 2118 flow [2022-11-18 20:31:50,836 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2114, PETRI_DIFFERENCE_MINUEND_PLACES=1020, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1054, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1052, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2118, PETRI_PLACES=1022, PETRI_TRANSITIONS=1054} [2022-11-18 20:31:50,836 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -16 predicate places. [2022-11-18 20:31:50,837 INFO L495 AbstractCegarLoop]: Abstraction has has 1022 places, 1054 transitions, 2118 flow [2022-11-18 20:31:50,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1065.3333333333333) internal successors, (3196), 3 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:50,838 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:50,838 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:50,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:31:50,838 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-18 20:31:50,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:50,839 INFO L85 PathProgramCache]: Analyzing trace with hash -706771151, now seen corresponding path program 1 times [2022-11-18 20:31:50,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:50,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521547462] [2022-11-18 20:31:50,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:50,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:50,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:50,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:50,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:50,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521547462] [2022-11-18 20:31:50,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521547462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:50,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:50,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:31:50,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929723232] [2022-11-18 20:31:50,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:50,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:31:50,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:50,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:31:50,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:31:50,894 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1043 out of 1111 [2022-11-18 20:31:50,897 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1022 places, 1054 transitions, 2118 flow. Second operand has 3 states, 3 states have (on average 1044.3333333333333) internal successors, (3133), 3 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:50,897 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:50,897 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1043 of 1111 [2022-11-18 20:31:50,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:51,731 INFO L130 PetriNetUnfolder]: 146/1933 cut-off events. [2022-11-18 20:31:51,731 INFO L131 PetriNetUnfolder]: For 39/98 co-relation queries the response was YES. [2022-11-18 20:31:51,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2168 conditions, 1933 events. 146/1933 cut-off events. For 39/98 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 13188 event pairs, 72 based on Foata normal form. 0/1547 useless extension candidates. Maximal degree in co-relation 2061. Up to 190 conditions per place. [2022-11-18 20:31:51,842 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 45 selfloop transitions, 2 changer transitions 0/1053 dead transitions. [2022-11-18 20:31:51,842 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1023 places, 1053 transitions, 2210 flow [2022-11-18 20:31:51,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:31:51,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:31:51,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3177 transitions. [2022-11-18 20:31:51,851 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9531953195319532 [2022-11-18 20:31:51,851 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3177 transitions. [2022-11-18 20:31:51,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3177 transitions. [2022-11-18 20:31:51,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:51,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3177 transitions. [2022-11-18 20:31:51,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1059.0) internal successors, (3177), 3 states have internal predecessors, (3177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:51,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:51,860 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:51,860 INFO L175 Difference]: Start difference. First operand has 1022 places, 1054 transitions, 2118 flow. Second operand 3 states and 3177 transitions. [2022-11-18 20:31:51,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1023 places, 1053 transitions, 2210 flow [2022-11-18 20:31:51,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1021 places, 1053 transitions, 2206 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:31:51,878 INFO L231 Difference]: Finished difference. Result has 1021 places, 1053 transitions, 2116 flow [2022-11-18 20:31:51,879 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2112, PETRI_DIFFERENCE_MINUEND_PLACES=1019, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1053, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1051, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2116, PETRI_PLACES=1021, PETRI_TRANSITIONS=1053} [2022-11-18 20:31:51,880 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -17 predicate places. [2022-11-18 20:31:51,880 INFO L495 AbstractCegarLoop]: Abstraction has has 1021 places, 1053 transitions, 2116 flow [2022-11-18 20:31:51,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1044.3333333333333) internal successors, (3133), 3 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:51,881 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:51,882 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:51,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:31:51,882 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-18 20:31:51,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:51,883 INFO L85 PathProgramCache]: Analyzing trace with hash 546425009, now seen corresponding path program 1 times [2022-11-18 20:31:51,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:51,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311068199] [2022-11-18 20:31:51,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:51,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:51,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:51,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:51,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311068199] [2022-11-18 20:31:51,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311068199] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:51,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:51,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:31:51,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138661186] [2022-11-18 20:31:51,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:51,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:31:51,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:51,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:31:51,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:31:51,939 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1052 out of 1111 [2022-11-18 20:31:51,942 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1021 places, 1053 transitions, 2116 flow. Second operand has 3 states, 3 states have (on average 1053.3333333333333) internal successors, (3160), 3 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:51,942 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:51,943 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1052 of 1111 [2022-11-18 20:31:51,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:52,725 INFO L130 PetriNetUnfolder]: 110/1598 cut-off events. [2022-11-18 20:31:52,726 INFO L131 PetriNetUnfolder]: For 51/53 co-relation queries the response was YES. [2022-11-18 20:31:52,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1741 conditions, 1598 events. 110/1598 cut-off events. For 51/53 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 9463 event pairs, 48 based on Foata normal form. 0/1295 useless extension candidates. Maximal degree in co-relation 1627. Up to 134 conditions per place. [2022-11-18 20:31:52,787 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 35 selfloop transitions, 2 changer transitions 0/1052 dead transitions. [2022-11-18 20:31:52,788 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1022 places, 1052 transitions, 2188 flow [2022-11-18 20:31:52,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:31:52,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:31:52,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3194 transitions. [2022-11-18 20:31:52,797 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9582958295829583 [2022-11-18 20:31:52,797 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3194 transitions. [2022-11-18 20:31:52,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3194 transitions. [2022-11-18 20:31:52,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:52,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3194 transitions. [2022-11-18 20:31:52,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1064.6666666666667) internal successors, (3194), 3 states have internal predecessors, (3194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:52,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:52,811 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:52,811 INFO L175 Difference]: Start difference. First operand has 1021 places, 1053 transitions, 2116 flow. Second operand 3 states and 3194 transitions. [2022-11-18 20:31:52,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1022 places, 1052 transitions, 2188 flow [2022-11-18 20:31:52,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1020 places, 1052 transitions, 2184 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:31:52,828 INFO L231 Difference]: Finished difference. Result has 1020 places, 1052 transitions, 2114 flow [2022-11-18 20:31:52,830 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2110, PETRI_DIFFERENCE_MINUEND_PLACES=1018, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1052, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1050, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2114, PETRI_PLACES=1020, PETRI_TRANSITIONS=1052} [2022-11-18 20:31:52,831 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -18 predicate places. [2022-11-18 20:31:52,831 INFO L495 AbstractCegarLoop]: Abstraction has has 1020 places, 1052 transitions, 2114 flow [2022-11-18 20:31:52,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1053.3333333333333) internal successors, (3160), 3 states have internal predecessors, (3160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:52,832 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:52,832 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:52,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:31:52,833 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-18 20:31:52,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:52,833 INFO L85 PathProgramCache]: Analyzing trace with hash 777469716, now seen corresponding path program 1 times [2022-11-18 20:31:52,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:52,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055365733] [2022-11-18 20:31:52,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:52,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:52,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:52,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:52,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:52,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055365733] [2022-11-18 20:31:52,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055365733] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:52,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:52,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:31:52,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105588375] [2022-11-18 20:31:52,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:52,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:31:52,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:52,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:31:52,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:31:52,893 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1061 out of 1111 [2022-11-18 20:31:52,896 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1020 places, 1052 transitions, 2114 flow. Second operand has 3 states, 3 states have (on average 1062.3333333333333) internal successors, (3187), 3 states have internal predecessors, (3187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:52,897 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:52,897 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1061 of 1111 [2022-11-18 20:31:52,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:53,727 INFO L130 PetriNetUnfolder]: 98/1621 cut-off events. [2022-11-18 20:31:53,727 INFO L131 PetriNetUnfolder]: For 39/41 co-relation queries the response was YES. [2022-11-18 20:31:53,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1730 conditions, 1621 events. 98/1621 cut-off events. For 39/41 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 9425 event pairs, 36 based on Foata normal form. 0/1302 useless extension candidates. Maximal degree in co-relation 1609. Up to 100 conditions per place. [2022-11-18 20:31:53,786 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 27 selfloop transitions, 2 changer transitions 0/1051 dead transitions. [2022-11-18 20:31:53,786 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1021 places, 1051 transitions, 2170 flow [2022-11-18 20:31:53,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:31:53,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:31:53,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3213 transitions. [2022-11-18 20:31:53,793 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.963996399639964 [2022-11-18 20:31:53,793 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3213 transitions. [2022-11-18 20:31:53,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3213 transitions. [2022-11-18 20:31:53,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:53,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3213 transitions. [2022-11-18 20:31:53,798 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1071.0) internal successors, (3213), 3 states have internal predecessors, (3213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:53,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:53,802 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:53,802 INFO L175 Difference]: Start difference. First operand has 1020 places, 1052 transitions, 2114 flow. Second operand 3 states and 3213 transitions. [2022-11-18 20:31:53,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1021 places, 1051 transitions, 2170 flow [2022-11-18 20:31:53,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1019 places, 1051 transitions, 2166 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:31:53,819 INFO L231 Difference]: Finished difference. Result has 1019 places, 1051 transitions, 2112 flow [2022-11-18 20:31:53,820 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2108, PETRI_DIFFERENCE_MINUEND_PLACES=1017, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1051, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1049, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2112, PETRI_PLACES=1019, PETRI_TRANSITIONS=1051} [2022-11-18 20:31:53,821 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -19 predicate places. [2022-11-18 20:31:53,821 INFO L495 AbstractCegarLoop]: Abstraction has has 1019 places, 1051 transitions, 2112 flow [2022-11-18 20:31:53,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1062.3333333333333) internal successors, (3187), 3 states have internal predecessors, (3187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:53,822 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:53,822 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:53,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 20:31:53,822 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-18 20:31:53,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:53,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1394563121, now seen corresponding path program 1 times [2022-11-18 20:31:53,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:53,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844840606] [2022-11-18 20:31:53,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:53,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:53,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:53,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:53,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:53,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844840606] [2022-11-18 20:31:53,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844840606] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:53,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:53,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:31:53,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672494388] [2022-11-18 20:31:53,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:53,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:31:53,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:53,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:31:53,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:31:53,906 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1064 out of 1111 [2022-11-18 20:31:53,910 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1019 places, 1051 transitions, 2112 flow. Second operand has 3 states, 3 states have (on average 1065.3333333333333) internal successors, (3196), 3 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:53,910 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:53,910 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1064 of 1111 [2022-11-18 20:31:53,910 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:54,742 INFO L130 PetriNetUnfolder]: 89/1533 cut-off events. [2022-11-18 20:31:54,742 INFO L131 PetriNetUnfolder]: For 34/36 co-relation queries the response was YES. [2022-11-18 20:31:54,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1630 conditions, 1533 events. 89/1533 cut-off events. For 34/36 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 7697 event pairs, 30 based on Foata normal form. 0/1245 useless extension candidates. Maximal degree in co-relation 1502. Up to 88 conditions per place. [2022-11-18 20:31:54,821 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 24 selfloop transitions, 2 changer transitions 0/1050 dead transitions. [2022-11-18 20:31:54,822 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1020 places, 1050 transitions, 2162 flow [2022-11-18 20:31:54,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:31:54,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:31:54,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3219 transitions. [2022-11-18 20:31:54,827 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9657965796579658 [2022-11-18 20:31:54,827 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3219 transitions. [2022-11-18 20:31:54,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3219 transitions. [2022-11-18 20:31:54,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:54,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3219 transitions. [2022-11-18 20:31:54,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1073.0) internal successors, (3219), 3 states have internal predecessors, (3219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:54,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:54,838 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:54,838 INFO L175 Difference]: Start difference. First operand has 1019 places, 1051 transitions, 2112 flow. Second operand 3 states and 3219 transitions. [2022-11-18 20:31:54,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1020 places, 1050 transitions, 2162 flow [2022-11-18 20:31:54,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1018 places, 1050 transitions, 2158 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:31:54,852 INFO L231 Difference]: Finished difference. Result has 1018 places, 1050 transitions, 2110 flow [2022-11-18 20:31:54,854 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2106, PETRI_DIFFERENCE_MINUEND_PLACES=1016, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1050, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1048, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2110, PETRI_PLACES=1018, PETRI_TRANSITIONS=1050} [2022-11-18 20:31:54,854 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -20 predicate places. [2022-11-18 20:31:54,854 INFO L495 AbstractCegarLoop]: Abstraction has has 1018 places, 1050 transitions, 2110 flow [2022-11-18 20:31:54,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1065.3333333333333) internal successors, (3196), 3 states have internal predecessors, (3196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:54,855 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:54,855 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:54,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 20:31:54,855 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-18 20:31:54,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:54,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1182440276, now seen corresponding path program 1 times [2022-11-18 20:31:54,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:54,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480542407] [2022-11-18 20:31:54,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:54,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:54,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:54,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:54,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:54,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480542407] [2022-11-18 20:31:54,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480542407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:54,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:54,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:31:54,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196223936] [2022-11-18 20:31:54,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:54,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:31:54,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:54,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:31:54,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:31:54,915 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1043 out of 1111 [2022-11-18 20:31:54,918 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1018 places, 1050 transitions, 2110 flow. Second operand has 3 states, 3 states have (on average 1044.3333333333333) internal successors, (3133), 3 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:54,918 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:54,918 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1043 of 1111 [2022-11-18 20:31:54,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:31:55,797 INFO L130 PetriNetUnfolder]: 134/1643 cut-off events. [2022-11-18 20:31:55,797 INFO L131 PetriNetUnfolder]: For 75/77 co-relation queries the response was YES. [2022-11-18 20:31:55,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1842 conditions, 1643 events. 134/1643 cut-off events. For 75/77 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 11090 event pairs, 72 based on Foata normal form. 0/1323 useless extension candidates. Maximal degree in co-relation 1707. Up to 190 conditions per place. [2022-11-18 20:31:55,865 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 45 selfloop transitions, 2 changer transitions 0/1049 dead transitions. [2022-11-18 20:31:55,865 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1019 places, 1049 transitions, 2202 flow [2022-11-18 20:31:55,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:31:55,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:31:55,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3177 transitions. [2022-11-18 20:31:55,873 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9531953195319532 [2022-11-18 20:31:55,873 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3177 transitions. [2022-11-18 20:31:55,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3177 transitions. [2022-11-18 20:31:55,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:31:55,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3177 transitions. [2022-11-18 20:31:55,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1059.0) internal successors, (3177), 3 states have internal predecessors, (3177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:55,884 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:55,884 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:55,884 INFO L175 Difference]: Start difference. First operand has 1018 places, 1050 transitions, 2110 flow. Second operand 3 states and 3177 transitions. [2022-11-18 20:31:55,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1019 places, 1049 transitions, 2202 flow [2022-11-18 20:31:55,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1017 places, 1049 transitions, 2198 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:31:55,901 INFO L231 Difference]: Finished difference. Result has 1017 places, 1049 transitions, 2108 flow [2022-11-18 20:31:55,903 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2104, PETRI_DIFFERENCE_MINUEND_PLACES=1015, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1049, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1047, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2108, PETRI_PLACES=1017, PETRI_TRANSITIONS=1049} [2022-11-18 20:31:55,903 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -21 predicate places. [2022-11-18 20:31:55,903 INFO L495 AbstractCegarLoop]: Abstraction has has 1017 places, 1049 transitions, 2108 flow [2022-11-18 20:31:55,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1044.3333333333333) internal successors, (3133), 3 states have internal predecessors, (3133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:55,904 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:31:55,905 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:55,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 20:31:55,905 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-18 20:31:55,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:55,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1679009641, now seen corresponding path program 1 times [2022-11-18 20:31:55,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:55,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886910709] [2022-11-18 20:31:55,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:55,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:55,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:55,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:31:55,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:55,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886910709] [2022-11-18 20:31:55,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886910709] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:55,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:55,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:31:55,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810331979] [2022-11-18 20:31:55,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:55,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:31:55,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:55,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:31:55,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:31:55,993 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1070 out of 1111 [2022-11-18 20:31:55,997 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1017 places, 1049 transitions, 2108 flow. Second operand has 3 states, 3 states have (on average 1071.3333333333333) internal successors, (3214), 3 states have internal predecessors, (3214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:31:55,997 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:31:55,997 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1070 of 1111 [2022-11-18 20:31:55,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 20:32:00,776 INFO L130 PetriNetUnfolder]: 579/9162 cut-off events. [2022-11-18 20:32:00,776 INFO L131 PetriNetUnfolder]: For 42/65 co-relation queries the response was YES. [2022-11-18 20:32:01,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9512 conditions, 9162 events. 579/9162 cut-off events. For 42/65 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 86896 event pairs, 135 based on Foata normal form. 0/7175 useless extension candidates. Maximal degree in co-relation 9370. Up to 323 conditions per place. [2022-11-18 20:32:01,258 INFO L137 encePairwiseOnDemand]: 1108/1111 looper letters, 18 selfloop transitions, 2 changer transitions 0/1048 dead transitions. [2022-11-18 20:32:01,258 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1018 places, 1048 transitions, 2146 flow [2022-11-18 20:32:01,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:32:01,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 20:32:01,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3231 transitions. [2022-11-18 20:32:01,266 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9693969396939695 [2022-11-18 20:32:01,266 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3231 transitions. [2022-11-18 20:32:01,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3231 transitions. [2022-11-18 20:32:01,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:32:01,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3231 transitions. [2022-11-18 20:32:01,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1077.0) internal successors, (3231), 3 states have internal predecessors, (3231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:32:01,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:32:01,282 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1111.0) internal successors, (4444), 4 states have internal predecessors, (4444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:32:01,282 INFO L175 Difference]: Start difference. First operand has 1017 places, 1049 transitions, 2108 flow. Second operand 3 states and 3231 transitions. [2022-11-18 20:32:01,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1018 places, 1048 transitions, 2146 flow [2022-11-18 20:32:01,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1016 places, 1048 transitions, 2142 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 20:32:01,307 INFO L231 Difference]: Finished difference. Result has 1016 places, 1048 transitions, 2106 flow [2022-11-18 20:32:01,309 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1111, PETRI_DIFFERENCE_MINUEND_FLOW=2102, PETRI_DIFFERENCE_MINUEND_PLACES=1014, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1048, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1046, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2106, PETRI_PLACES=1016, PETRI_TRANSITIONS=1048} [2022-11-18 20:32:01,309 INFO L288 CegarLoopForPetriNet]: 1038 programPoint places, -22 predicate places. [2022-11-18 20:32:01,310 INFO L495 AbstractCegarLoop]: Abstraction has has 1016 places, 1048 transitions, 2106 flow [2022-11-18 20:32:01,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1071.3333333333333) internal successors, (3214), 3 states have internal predecessors, (3214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:32:01,311 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 20:32:01,311 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:32:01,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 20:32:01,312 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 280 more)] === [2022-11-18 20:32:01,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:01,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1221990323, now seen corresponding path program 1 times [2022-11-18 20:32:01,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:01,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725405535] [2022-11-18 20:32:01,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:01,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:01,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:02,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:32:02,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:32:02,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725405535] [2022-11-18 20:32:02,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725405535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:32:02,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:32:02,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:32:02,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572643649] [2022-11-18 20:32:02,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:32:02,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:32:02,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:32:02,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:32:02,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:32:02,256 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1032 out of 1111 [2022-11-18 20:32:02,261 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1016 places, 1048 transitions, 2106 flow. Second operand has 6 states, 6 states have (on average 1033.8333333333333) internal successors, (6203), 6 states have internal predecessors, (6203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:32:02,261 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 20:32:02,261 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1032 of 1111 [2022-11-18 20:32:02,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand