./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-node-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfece846-2a2d-42fc-aca7-188411a0c10a/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfece846-2a2d-42fc-aca7-188411a0c10a/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfece846-2a2d-42fc-aca7-188411a0c10a/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfece846-2a2d-42fc-aca7-188411a0c10a/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-node-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfece846-2a2d-42fc-aca7-188411a0c10a/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfece846-2a2d-42fc-aca7-188411a0c10a/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 514e162b13bdcbe99106b4f79e5a61b8afdae9b478788e06b35106cd952df62f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:48:29,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:48:29,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:48:29,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:48:29,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:48:29,852 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:48:29,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:48:29,856 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:48:29,857 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:48:29,858 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:48:29,859 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:48:29,860 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:48:29,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:48:29,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:48:29,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:48:29,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:48:29,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:48:29,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:48:29,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:48:29,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:48:29,871 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:48:29,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:48:29,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:48:29,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:48:29,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:48:29,879 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:48:29,880 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:48:29,881 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:48:29,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:48:29,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:48:29,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:48:29,883 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:48:29,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:48:29,885 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:48:29,886 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:48:29,886 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:48:29,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:48:29,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:48:29,888 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:48:29,889 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:48:29,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:48:29,890 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfece846-2a2d-42fc-aca7-188411a0c10a/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:48:29,915 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:48:29,916 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:48:29,916 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:48:29,916 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:48:29,917 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:48:29,917 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:48:29,918 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:48:29,918 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:48:29,918 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:48:29,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:48:29,919 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:48:29,919 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:48:29,919 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:48:29,919 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:48:29,919 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:48:29,920 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:48:29,920 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:48:29,920 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:48:29,920 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:48:29,920 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:48:29,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:48:29,921 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:48:29,921 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:48:29,921 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:48:29,921 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:48:29,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:48:29,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:48:29,922 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:48:29,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:48:29,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:48:29,922 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:48:29,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:48:29,923 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:48:29,923 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:48:29,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:48:29,923 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_dfece846-2a2d-42fc-aca7-188411a0c10a/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfece846-2a2d-42fc-aca7-188411a0c10a/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 514e162b13bdcbe99106b4f79e5a61b8afdae9b478788e06b35106cd952df62f [2022-11-16 11:48:30,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:48:30,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:48:30,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:48:30,206 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:48:30,207 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:48:30,208 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfece846-2a2d-42fc-aca7-188411a0c10a/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/chl-node-symm.wvr.c [2022-11-16 11:48:30,277 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfece846-2a2d-42fc-aca7-188411a0c10a/bin/uautomizer-tPACEb0tL8/data/34e03971c/c9396a1a9fac4eb4b430008722680bf3/FLAG91d2df166 [2022-11-16 11:48:30,689 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:48:30,690 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfece846-2a2d-42fc-aca7-188411a0c10a/sv-benchmarks/c/weaver/chl-node-symm.wvr.c [2022-11-16 11:48:30,698 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfece846-2a2d-42fc-aca7-188411a0c10a/bin/uautomizer-tPACEb0tL8/data/34e03971c/c9396a1a9fac4eb4b430008722680bf3/FLAG91d2df166 [2022-11-16 11:48:31,084 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfece846-2a2d-42fc-aca7-188411a0c10a/bin/uautomizer-tPACEb0tL8/data/34e03971c/c9396a1a9fac4eb4b430008722680bf3 [2022-11-16 11:48:31,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:48:31,088 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:48:31,089 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:48:31,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:48:31,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:48:31,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:48:31" (1/1) ... [2022-11-16 11:48:31,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d97c39b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:31, skipping insertion in model container [2022-11-16 11:48:31,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:48:31" (1/1) ... [2022-11-16 11:48:31,103 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:48:31,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:48:31,353 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfece846-2a2d-42fc-aca7-188411a0c10a/sv-benchmarks/c/weaver/chl-node-symm.wvr.c[3305,3318] [2022-11-16 11:48:31,366 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:48:31,374 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:48:31,415 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfece846-2a2d-42fc-aca7-188411a0c10a/sv-benchmarks/c/weaver/chl-node-symm.wvr.c[3305,3318] [2022-11-16 11:48:31,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:48:31,439 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:48:31,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:31 WrapperNode [2022-11-16 11:48:31,440 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:48:31,441 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:48:31,441 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:48:31,441 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:48:31,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:31" (1/1) ... [2022-11-16 11:48:31,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:31" (1/1) ... [2022-11-16 11:48:31,511 INFO L138 Inliner]: procedures = 26, calls = 50, calls flagged for inlining = 18, calls inlined = 24, statements flattened = 542 [2022-11-16 11:48:31,511 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:48:31,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:48:31,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:48:31,512 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:48:31,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:31" (1/1) ... [2022-11-16 11:48:31,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:31" (1/1) ... [2022-11-16 11:48:31,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:31" (1/1) ... [2022-11-16 11:48:31,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:31" (1/1) ... [2022-11-16 11:48:31,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:31" (1/1) ... [2022-11-16 11:48:31,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:31" (1/1) ... [2022-11-16 11:48:31,586 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:31" (1/1) ... [2022-11-16 11:48:31,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:31" (1/1) ... [2022-11-16 11:48:31,615 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:48:31,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:48:31,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:48:31,616 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:48:31,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:31" (1/1) ... [2022-11-16 11:48:31,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:48:31,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfece846-2a2d-42fc-aca7-188411a0c10a/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:48:31,653 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfece846-2a2d-42fc-aca7-188411a0c10a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:48:31,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfece846-2a2d-42fc-aca7-188411a0c10a/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:48:31,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:48:31,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:48:31,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:48:31,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:48:31,704 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 11:48:31,704 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 11:48:31,704 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 11:48:31,704 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 11:48:31,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:48:31,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:48:31,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:48:31,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:48:31,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:48:31,706 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:48:31,928 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:48:31,930 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:48:33,023 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:48:33,051 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:48:33,051 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-16 11:48:33,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:48:33 BoogieIcfgContainer [2022-11-16 11:48:33,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:48:33,057 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:48:33,057 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:48:33,061 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:48:33,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:48:31" (1/3) ... [2022-11-16 11:48:33,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483e51a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:48:33, skipping insertion in model container [2022-11-16 11:48:33,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:48:31" (2/3) ... [2022-11-16 11:48:33,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483e51a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:48:33, skipping insertion in model container [2022-11-16 11:48:33,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:48:33" (3/3) ... [2022-11-16 11:48:33,065 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-symm.wvr.c [2022-11-16 11:48:33,075 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:48:33,091 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:48:33,091 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 80 error locations. [2022-11-16 11:48:33,092 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:48:33,269 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 11:48:33,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 692 places, 718 transitions, 1452 flow [2022-11-16 11:48:33,683 INFO L130 PetriNetUnfolder]: 33/716 cut-off events. [2022-11-16 11:48:33,684 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 11:48:33,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 725 conditions, 716 events. 33/716 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1157 event pairs, 0 based on Foata normal form. 0/603 useless extension candidates. Maximal degree in co-relation 506. Up to 2 conditions per place. [2022-11-16 11:48:33,700 INFO L82 GeneralOperation]: Start removeDead. Operand has 692 places, 718 transitions, 1452 flow [2022-11-16 11:48:33,719 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 669 places, 693 transitions, 1398 flow [2022-11-16 11:48:33,743 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:48:33,752 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;@54bec91d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:48:33,753 INFO L358 AbstractCegarLoop]: Starting to check reachability of 132 error locations. [2022-11-16 11:48:33,759 INFO L130 PetriNetUnfolder]: 0/30 cut-off events. [2022-11-16 11:48:33,759 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:48:33,760 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:33,760 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] [2022-11-16 11:48:33,762 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-16 11:48:33,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:33,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1184178590, now seen corresponding path program 1 times [2022-11-16 11:48:33,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:33,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384758101] [2022-11-16 11:48:33,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:33,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:33,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:34,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:34,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:34,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384758101] [2022-11-16 11:48:34,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384758101] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:34,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:34,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:48:34,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560065309] [2022-11-16 11:48:34,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:34,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:48:34,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:34,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:48:34,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:48:34,136 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 657 out of 718 [2022-11-16 11:48:34,145 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 669 places, 693 transitions, 1398 flow. Second operand has 3 states, 3 states have (on average 658.3333333333334) internal successors, (1975), 3 states have internal predecessors, (1975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:34,145 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:34,145 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 657 of 718 [2022-11-16 11:48:34,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:35,026 INFO L130 PetriNetUnfolder]: 160/2598 cut-off events. [2022-11-16 11:48:35,027 INFO L131 PetriNetUnfolder]: For 47/47 co-relation queries the response was YES. [2022-11-16 11:48:35,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2880 conditions, 2598 events. 160/2598 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 16992 event pairs, 99 based on Foata normal form. 51/2144 useless extension candidates. Maximal degree in co-relation 2316. Up to 243 conditions per place. [2022-11-16 11:48:35,055 INFO L137 encePairwiseOnDemand]: 696/718 looper letters, 37 selfloop transitions, 2 changer transitions 11/673 dead transitions. [2022-11-16 11:48:35,055 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 670 places, 673 transitions, 1436 flow [2022-11-16 11:48:35,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:48:35,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:48:35,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2030 transitions. [2022-11-16 11:48:35,078 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9424326833797586 [2022-11-16 11:48:35,079 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2030 transitions. [2022-11-16 11:48:35,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2030 transitions. [2022-11-16 11:48:35,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:35,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2030 transitions. [2022-11-16 11:48:35,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 676.6666666666666) internal successors, (2030), 3 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:35,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:35,109 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:35,111 INFO L175 Difference]: Start difference. First operand has 669 places, 693 transitions, 1398 flow. Second operand 3 states and 2030 transitions. [2022-11-16 11:48:35,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 670 places, 673 transitions, 1436 flow [2022-11-16 11:48:35,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 666 places, 673 transitions, 1428 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 11:48:35,133 INFO L231 Difference]: Finished difference. Result has 666 places, 662 transitions, 1332 flow [2022-11-16 11:48:35,136 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1350, PETRI_DIFFERENCE_MINUEND_PLACES=664, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=673, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=671, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1332, PETRI_PLACES=666, PETRI_TRANSITIONS=662} [2022-11-16 11:48:35,140 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -3 predicate places. [2022-11-16 11:48:35,141 INFO L495 AbstractCegarLoop]: Abstraction has has 666 places, 662 transitions, 1332 flow [2022-11-16 11:48:35,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 658.3333333333334) internal successors, (1975), 3 states have internal predecessors, (1975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:35,142 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:35,143 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] [2022-11-16 11:48:35,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:48:35,143 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-16 11:48:35,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:35,144 INFO L85 PathProgramCache]: Analyzing trace with hash -813262189, now seen corresponding path program 1 times [2022-11-16 11:48:35,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:35,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031929464] [2022-11-16 11:48:35,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:35,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:35,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:35,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:35,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:35,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031929464] [2022-11-16 11:48:35,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031929464] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:35,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:35,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:48:35,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754770310] [2022-11-16 11:48:35,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:35,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:48:35,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:35,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:48:35,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:48:35,261 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 660 out of 718 [2022-11-16 11:48:35,265 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 666 places, 662 transitions, 1332 flow. Second operand has 3 states, 3 states have (on average 661.3333333333334) internal successors, (1984), 3 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:35,265 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:35,271 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 660 of 718 [2022-11-16 11:48:35,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:35,957 INFO L130 PetriNetUnfolder]: 97/2070 cut-off events. [2022-11-16 11:48:35,957 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-11-16 11:48:35,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2210 conditions, 2070 events. 97/2070 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 11990 event pairs, 48 based on Foata normal form. 0/1730 useless extension candidates. Maximal degree in co-relation 2170. Up to 125 conditions per place. [2022-11-16 11:48:35,980 INFO L137 encePairwiseOnDemand]: 707/718 looper letters, 25 selfloop transitions, 1 changer transitions 0/652 dead transitions. [2022-11-16 11:48:35,980 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 647 places, 652 transitions, 1364 flow [2022-11-16 11:48:35,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:48:35,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:48:35,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2016 transitions. [2022-11-16 11:48:35,987 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.935933147632312 [2022-11-16 11:48:35,988 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2016 transitions. [2022-11-16 11:48:35,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2016 transitions. [2022-11-16 11:48:35,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:35,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2016 transitions. [2022-11-16 11:48:35,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 672.0) internal successors, (2016), 3 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:36,003 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:36,004 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:36,004 INFO L175 Difference]: Start difference. First operand has 666 places, 662 transitions, 1332 flow. Second operand 3 states and 2016 transitions. [2022-11-16 11:48:36,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 647 places, 652 transitions, 1364 flow [2022-11-16 11:48:36,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 645 places, 652 transitions, 1360 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:48:36,020 INFO L231 Difference]: Finished difference. Result has 645 places, 652 transitions, 1310 flow [2022-11-16 11:48:36,021 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1308, PETRI_DIFFERENCE_MINUEND_PLACES=643, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=652, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=651, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1310, PETRI_PLACES=645, PETRI_TRANSITIONS=652} [2022-11-16 11:48:36,022 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -24 predicate places. [2022-11-16 11:48:36,022 INFO L495 AbstractCegarLoop]: Abstraction has has 645 places, 652 transitions, 1310 flow [2022-11-16 11:48:36,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 661.3333333333334) internal successors, (1984), 3 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:36,024 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:36,024 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] [2022-11-16 11:48:36,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:48:36,025 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-16 11:48:36,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:36,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1913372411, now seen corresponding path program 1 times [2022-11-16 11:48:36,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:36,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057790201] [2022-11-16 11:48:36,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:36,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:36,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:36,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:36,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:36,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057790201] [2022-11-16 11:48:36,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057790201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:36,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:36,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:48:36,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325464419] [2022-11-16 11:48:36,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:36,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:48:36,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:36,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:48:36,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:48:36,094 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 657 out of 718 [2022-11-16 11:48:36,098 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 645 places, 652 transitions, 1310 flow. Second operand has 3 states, 3 states have (on average 658.3333333333334) internal successors, (1975), 3 states have internal predecessors, (1975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:36,098 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:36,098 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 657 of 718 [2022-11-16 11:48:36,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:36,773 INFO L130 PetriNetUnfolder]: 162/2592 cut-off events. [2022-11-16 11:48:36,773 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2022-11-16 11:48:36,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2856 conditions, 2592 events. 162/2592 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 16789 event pairs, 99 based on Foata normal form. 0/2139 useless extension candidates. Maximal degree in co-relation 2817. Up to 248 conditions per place. [2022-11-16 11:48:36,799 INFO L137 encePairwiseOnDemand]: 715/718 looper letters, 37 selfloop transitions, 2 changer transitions 0/651 dead transitions. [2022-11-16 11:48:36,799 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 646 places, 651 transitions, 1386 flow [2022-11-16 11:48:36,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:48:36,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:48:36,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2011 transitions. [2022-11-16 11:48:36,803 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9336118848653667 [2022-11-16 11:48:36,804 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2011 transitions. [2022-11-16 11:48:36,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2011 transitions. [2022-11-16 11:48:36,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:36,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2011 transitions. [2022-11-16 11:48:36,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 670.3333333333334) internal successors, (2011), 3 states have internal predecessors, (2011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:36,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:36,816 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:36,816 INFO L175 Difference]: Start difference. First operand has 645 places, 652 transitions, 1310 flow. Second operand 3 states and 2011 transitions. [2022-11-16 11:48:36,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 646 places, 651 transitions, 1386 flow [2022-11-16 11:48:36,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 645 places, 651 transitions, 1385 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:48:36,828 INFO L231 Difference]: Finished difference. Result has 645 places, 651 transitions, 1311 flow [2022-11-16 11:48:36,829 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1307, PETRI_DIFFERENCE_MINUEND_PLACES=643, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=651, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=649, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1311, PETRI_PLACES=645, PETRI_TRANSITIONS=651} [2022-11-16 11:48:36,830 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -24 predicate places. [2022-11-16 11:48:36,830 INFO L495 AbstractCegarLoop]: Abstraction has has 645 places, 651 transitions, 1311 flow [2022-11-16 11:48:36,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 658.3333333333334) internal successors, (1975), 3 states have internal predecessors, (1975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:36,832 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:36,832 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] [2022-11-16 11:48:36,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:48:36,832 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-16 11:48:36,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:36,833 INFO L85 PathProgramCache]: Analyzing trace with hash -101771815, now seen corresponding path program 1 times [2022-11-16 11:48:36,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:36,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735999702] [2022-11-16 11:48:36,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:36,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:36,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:36,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:36,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:36,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735999702] [2022-11-16 11:48:36,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735999702] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:36,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:36,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:48:36,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875180928] [2022-11-16 11:48:36,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:36,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:48:36,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:36,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:48:36,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:48:36,949 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 660 out of 718 [2022-11-16 11:48:36,952 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 645 places, 651 transitions, 1311 flow. Second operand has 3 states, 3 states have (on average 661.3333333333334) internal successors, (1984), 3 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:36,952 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:36,952 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 660 of 718 [2022-11-16 11:48:36,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:37,473 INFO L130 PetriNetUnfolder]: 98/2057 cut-off events. [2022-11-16 11:48:37,473 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-11-16 11:48:37,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2200 conditions, 2057 events. 98/2057 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 11767 event pairs, 48 based on Foata normal form. 0/1750 useless extension candidates. Maximal degree in co-relation 2162. Up to 127 conditions per place. [2022-11-16 11:48:37,491 INFO L137 encePairwiseOnDemand]: 707/718 looper letters, 25 selfloop transitions, 1 changer transitions 0/641 dead transitions. [2022-11-16 11:48:37,491 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 637 places, 641 transitions, 1343 flow [2022-11-16 11:48:37,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:48:37,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:48:37,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2016 transitions. [2022-11-16 11:48:37,496 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.935933147632312 [2022-11-16 11:48:37,496 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2016 transitions. [2022-11-16 11:48:37,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2016 transitions. [2022-11-16 11:48:37,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:37,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2016 transitions. [2022-11-16 11:48:37,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 672.0) internal successors, (2016), 3 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:37,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:37,508 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:37,509 INFO L175 Difference]: Start difference. First operand has 645 places, 651 transitions, 1311 flow. Second operand 3 states and 2016 transitions. [2022-11-16 11:48:37,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 637 places, 641 transitions, 1343 flow [2022-11-16 11:48:37,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 635 places, 641 transitions, 1339 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:48:37,520 INFO L231 Difference]: Finished difference. Result has 635 places, 641 transitions, 1289 flow [2022-11-16 11:48:37,521 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1287, PETRI_DIFFERENCE_MINUEND_PLACES=633, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=641, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=640, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1289, PETRI_PLACES=635, PETRI_TRANSITIONS=641} [2022-11-16 11:48:37,522 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -34 predicate places. [2022-11-16 11:48:37,522 INFO L495 AbstractCegarLoop]: Abstraction has has 635 places, 641 transitions, 1289 flow [2022-11-16 11:48:37,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 661.3333333333334) internal successors, (1984), 3 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:37,524 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:37,524 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] [2022-11-16 11:48:37,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:48:37,525 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-16 11:48:37,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:37,525 INFO L85 PathProgramCache]: Analyzing trace with hash -2135777537, now seen corresponding path program 1 times [2022-11-16 11:48:37,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:37,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845591440] [2022-11-16 11:48:37,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:37,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:37,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:37,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:37,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:37,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845591440] [2022-11-16 11:48:37,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845591440] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:37,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:37,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:48:37,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620478681] [2022-11-16 11:48:37,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:37,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:48:37,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:37,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:48:37,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:48:37,596 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 678 out of 718 [2022-11-16 11:48:37,598 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 635 places, 641 transitions, 1289 flow. Second operand has 3 states, 3 states have (on average 679.3333333333334) internal successors, (2038), 3 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:37,598 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:37,599 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 678 of 718 [2022-11-16 11:48:37,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:37,787 INFO L130 PetriNetUnfolder]: 18/810 cut-off events. [2022-11-16 11:48:37,788 INFO L131 PetriNetUnfolder]: For 2/5 co-relation queries the response was YES. [2022-11-16 11:48:37,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 844 conditions, 810 events. 18/810 cut-off events. For 2/5 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1618 event pairs, 3 based on Foata normal form. 0/711 useless extension candidates. Maximal degree in co-relation 805. Up to 23 conditions per place. [2022-11-16 11:48:37,796 INFO L137 encePairwiseOnDemand]: 715/718 looper letters, 16 selfloop transitions, 2 changer transitions 0/640 dead transitions. [2022-11-16 11:48:37,796 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 636 places, 640 transitions, 1323 flow [2022-11-16 11:48:37,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:48:37,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:48:37,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2053 transitions. [2022-11-16 11:48:37,802 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9531104921077066 [2022-11-16 11:48:37,802 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2053 transitions. [2022-11-16 11:48:37,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2053 transitions. [2022-11-16 11:48:37,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:37,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2053 transitions. [2022-11-16 11:48:37,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 684.3333333333334) internal successors, (2053), 3 states have internal predecessors, (2053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:37,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:37,817 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:37,818 INFO L175 Difference]: Start difference. First operand has 635 places, 641 transitions, 1289 flow. Second operand 3 states and 2053 transitions. [2022-11-16 11:48:37,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 636 places, 640 transitions, 1323 flow [2022-11-16 11:48:37,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 635 places, 640 transitions, 1322 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 11:48:37,831 INFO L231 Difference]: Finished difference. Result has 635 places, 640 transitions, 1290 flow [2022-11-16 11:48:37,833 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1286, PETRI_DIFFERENCE_MINUEND_PLACES=633, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=640, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=638, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1290, PETRI_PLACES=635, PETRI_TRANSITIONS=640} [2022-11-16 11:48:37,833 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -34 predicate places. [2022-11-16 11:48:37,834 INFO L495 AbstractCegarLoop]: Abstraction has has 635 places, 640 transitions, 1290 flow [2022-11-16 11:48:37,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 679.3333333333334) internal successors, (2038), 3 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:37,835 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:37,836 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] [2022-11-16 11:48:37,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:48:37,836 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-16 11:48:37,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:37,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1688992514, now seen corresponding path program 1 times [2022-11-16 11:48:37,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:37,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137479217] [2022-11-16 11:48:37,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:37,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:37,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:37,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:37,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:37,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137479217] [2022-11-16 11:48:37,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137479217] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:37,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:37,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:48:37,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443507480] [2022-11-16 11:48:37,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:37,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:48:37,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:37,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:48:37,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:48:37,904 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 678 out of 718 [2022-11-16 11:48:37,908 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 635 places, 640 transitions, 1290 flow. Second operand has 3 states, 3 states have (on average 679.3333333333334) internal successors, (2038), 3 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:37,908 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:37,908 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 678 of 718 [2022-11-16 11:48:37,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:38,144 INFO L130 PetriNetUnfolder]: 27/931 cut-off events. [2022-11-16 11:48:38,144 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-16 11:48:38,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 985 conditions, 931 events. 27/931 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3030 event pairs, 9 based on Foata normal form. 0/812 useless extension candidates. Maximal degree in co-relation 946. Up to 35 conditions per place. [2022-11-16 11:48:38,156 INFO L137 encePairwiseOnDemand]: 715/718 looper letters, 16 selfloop transitions, 2 changer transitions 0/639 dead transitions. [2022-11-16 11:48:38,157 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 636 places, 639 transitions, 1324 flow [2022-11-16 11:48:38,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:48:38,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:48:38,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2053 transitions. [2022-11-16 11:48:38,162 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9531104921077066 [2022-11-16 11:48:38,163 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2053 transitions. [2022-11-16 11:48:38,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2053 transitions. [2022-11-16 11:48:38,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:38,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2053 transitions. [2022-11-16 11:48:38,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 684.3333333333334) internal successors, (2053), 3 states have internal predecessors, (2053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:38,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:38,194 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:38,194 INFO L175 Difference]: Start difference. First operand has 635 places, 640 transitions, 1290 flow. Second operand 3 states and 2053 transitions. [2022-11-16 11:48:38,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 636 places, 639 transitions, 1324 flow [2022-11-16 11:48:38,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 634 places, 639 transitions, 1320 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:48:38,209 INFO L231 Difference]: Finished difference. Result has 634 places, 639 transitions, 1288 flow [2022-11-16 11:48:38,210 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1284, PETRI_DIFFERENCE_MINUEND_PLACES=632, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=639, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=637, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1288, PETRI_PLACES=634, PETRI_TRANSITIONS=639} [2022-11-16 11:48:38,213 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -35 predicate places. [2022-11-16 11:48:38,214 INFO L495 AbstractCegarLoop]: Abstraction has has 634 places, 639 transitions, 1288 flow [2022-11-16 11:48:38,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 679.3333333333334) internal successors, (2038), 3 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:38,215 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:38,215 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] [2022-11-16 11:48:38,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:48:38,216 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-16 11:48:38,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:38,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1749293136, now seen corresponding path program 1 times [2022-11-16 11:48:38,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:38,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318880761] [2022-11-16 11:48:38,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:38,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:38,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:38,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:38,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318880761] [2022-11-16 11:48:38,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318880761] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:38,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:38,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:48:38,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452495008] [2022-11-16 11:48:38,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:38,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:48:38,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:38,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:48:38,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:48:38,333 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 678 out of 718 [2022-11-16 11:48:38,335 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 634 places, 639 transitions, 1288 flow. Second operand has 3 states, 3 states have (on average 679.3333333333334) internal successors, (2038), 3 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:38,336 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:38,336 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 678 of 718 [2022-11-16 11:48:38,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:38,583 INFO L130 PetriNetUnfolder]: 27/911 cut-off events. [2022-11-16 11:48:38,583 INFO L131 PetriNetUnfolder]: For 2/11 co-relation queries the response was YES. [2022-11-16 11:48:38,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 965 conditions, 911 events. 27/911 cut-off events. For 2/11 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2722 event pairs, 9 based on Foata normal form. 0/796 useless extension candidates. Maximal degree in co-relation 926. Up to 35 conditions per place. [2022-11-16 11:48:38,595 INFO L137 encePairwiseOnDemand]: 715/718 looper letters, 16 selfloop transitions, 2 changer transitions 0/638 dead transitions. [2022-11-16 11:48:38,596 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 635 places, 638 transitions, 1322 flow [2022-11-16 11:48:38,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:48:38,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:48:38,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2053 transitions. [2022-11-16 11:48:38,603 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9531104921077066 [2022-11-16 11:48:38,604 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2053 transitions. [2022-11-16 11:48:38,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2053 transitions. [2022-11-16 11:48:38,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:38,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2053 transitions. [2022-11-16 11:48:38,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 684.3333333333334) internal successors, (2053), 3 states have internal predecessors, (2053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:38,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:38,617 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:38,618 INFO L175 Difference]: Start difference. First operand has 634 places, 639 transitions, 1288 flow. Second operand 3 states and 2053 transitions. [2022-11-16 11:48:38,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 635 places, 638 transitions, 1322 flow [2022-11-16 11:48:38,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 633 places, 638 transitions, 1318 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:48:38,637 INFO L231 Difference]: Finished difference. Result has 633 places, 638 transitions, 1286 flow [2022-11-16 11:48:38,638 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1282, PETRI_DIFFERENCE_MINUEND_PLACES=631, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=638, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=636, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1286, PETRI_PLACES=633, PETRI_TRANSITIONS=638} [2022-11-16 11:48:38,639 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -36 predicate places. [2022-11-16 11:48:38,639 INFO L495 AbstractCegarLoop]: Abstraction has has 633 places, 638 transitions, 1286 flow [2022-11-16 11:48:38,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 679.3333333333334) internal successors, (2038), 3 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:38,640 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:38,640 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] [2022-11-16 11:48:38,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:48:38,640 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-16 11:48:38,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:38,641 INFO L85 PathProgramCache]: Analyzing trace with hash -2070589419, now seen corresponding path program 1 times [2022-11-16 11:48:38,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:38,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245660227] [2022-11-16 11:48:38,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:38,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:38,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:38,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:38,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:38,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245660227] [2022-11-16 11:48:38,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245660227] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:38,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:38,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:48:38,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899971806] [2022-11-16 11:48:38,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:38,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:48:38,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:38,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:48:38,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:48:38,690 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 678 out of 718 [2022-11-16 11:48:38,693 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 633 places, 638 transitions, 1286 flow. Second operand has 3 states, 3 states have (on average 679.3333333333334) internal successors, (2038), 3 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:38,693 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:38,693 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 678 of 718 [2022-11-16 11:48:38,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:38,838 INFO L130 PetriNetUnfolder]: 15/654 cut-off events. [2022-11-16 11:48:38,838 INFO L131 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2022-11-16 11:48:38,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 686 conditions, 654 events. 15/654 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1169 event pairs, 3 based on Foata normal form. 0/581 useless extension candidates. Maximal degree in co-relation 647. Up to 22 conditions per place. [2022-11-16 11:48:38,847 INFO L137 encePairwiseOnDemand]: 715/718 looper letters, 15 selfloop transitions, 2 changer transitions 0/637 dead transitions. [2022-11-16 11:48:38,847 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 634 places, 637 transitions, 1318 flow [2022-11-16 11:48:38,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:48:38,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:48:38,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2052 transitions. [2022-11-16 11:48:38,852 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9526462395543176 [2022-11-16 11:48:38,852 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2052 transitions. [2022-11-16 11:48:38,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2052 transitions. [2022-11-16 11:48:38,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:38,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2052 transitions. [2022-11-16 11:48:38,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 684.0) internal successors, (2052), 3 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:38,863 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:38,864 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:38,865 INFO L175 Difference]: Start difference. First operand has 633 places, 638 transitions, 1286 flow. Second operand 3 states and 2052 transitions. [2022-11-16 11:48:38,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 634 places, 637 transitions, 1318 flow [2022-11-16 11:48:38,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 632 places, 637 transitions, 1314 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:48:38,876 INFO L231 Difference]: Finished difference. Result has 632 places, 637 transitions, 1284 flow [2022-11-16 11:48:38,877 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1280, PETRI_DIFFERENCE_MINUEND_PLACES=630, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=637, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=635, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1284, PETRI_PLACES=632, PETRI_TRANSITIONS=637} [2022-11-16 11:48:38,878 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -37 predicate places. [2022-11-16 11:48:38,878 INFO L495 AbstractCegarLoop]: Abstraction has has 632 places, 637 transitions, 1284 flow [2022-11-16 11:48:38,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 679.3333333333334) internal successors, (2038), 3 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:38,879 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:38,879 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] [2022-11-16 11:48:38,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:48:38,880 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-16 11:48:38,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:38,880 INFO L85 PathProgramCache]: Analyzing trace with hash -380454134, now seen corresponding path program 1 times [2022-11-16 11:48:38,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:38,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123042296] [2022-11-16 11:48:38,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:38,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:38,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:38,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:38,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123042296] [2022-11-16 11:48:38,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123042296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:38,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:38,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:48:38,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051962315] [2022-11-16 11:48:38,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:38,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:48:38,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:38,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:48:38,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:48:38,926 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 678 out of 718 [2022-11-16 11:48:38,929 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 632 places, 637 transitions, 1284 flow. Second operand has 3 states, 3 states have (on average 679.3333333333334) internal successors, (2038), 3 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:38,929 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:38,929 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 678 of 718 [2022-11-16 11:48:38,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:39,111 INFO L130 PetriNetUnfolder]: 24/775 cut-off events. [2022-11-16 11:48:39,112 INFO L131 PetriNetUnfolder]: For 11/12 co-relation queries the response was YES. [2022-11-16 11:48:39,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 820 conditions, 775 events. 24/775 cut-off events. For 11/12 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1815 event pairs, 9 based on Foata normal form. 0/676 useless extension candidates. Maximal degree in co-relation 781. Up to 35 conditions per place. [2022-11-16 11:48:39,121 INFO L137 encePairwiseOnDemand]: 715/718 looper letters, 16 selfloop transitions, 2 changer transitions 0/636 dead transitions. [2022-11-16 11:48:39,121 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 633 places, 636 transitions, 1318 flow [2022-11-16 11:48:39,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:48:39,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:48:39,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2053 transitions. [2022-11-16 11:48:39,126 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9531104921077066 [2022-11-16 11:48:39,126 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2053 transitions. [2022-11-16 11:48:39,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2053 transitions. [2022-11-16 11:48:39,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:39,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2053 transitions. [2022-11-16 11:48:39,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 684.3333333333334) internal successors, (2053), 3 states have internal predecessors, (2053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:39,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:39,137 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:39,137 INFO L175 Difference]: Start difference. First operand has 632 places, 637 transitions, 1284 flow. Second operand 3 states and 2053 transitions. [2022-11-16 11:48:39,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 633 places, 636 transitions, 1318 flow [2022-11-16 11:48:39,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 631 places, 636 transitions, 1314 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:48:39,149 INFO L231 Difference]: Finished difference. Result has 631 places, 636 transitions, 1282 flow [2022-11-16 11:48:39,150 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1278, PETRI_DIFFERENCE_MINUEND_PLACES=629, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=636, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=634, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1282, PETRI_PLACES=631, PETRI_TRANSITIONS=636} [2022-11-16 11:48:39,151 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -38 predicate places. [2022-11-16 11:48:39,151 INFO L495 AbstractCegarLoop]: Abstraction has has 631 places, 636 transitions, 1282 flow [2022-11-16 11:48:39,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 679.3333333333334) internal successors, (2038), 3 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:39,153 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:39,153 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] [2022-11-16 11:48:39,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:48:39,153 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-16 11:48:39,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:39,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1692124872, now seen corresponding path program 1 times [2022-11-16 11:48:39,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:39,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435471185] [2022-11-16 11:48:39,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:39,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:39,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:39,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:39,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:39,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435471185] [2022-11-16 11:48:39,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435471185] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:39,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:39,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:48:39,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353663222] [2022-11-16 11:48:39,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:39,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:48:39,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:39,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:48:39,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:48:39,242 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 678 out of 718 [2022-11-16 11:48:39,245 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 631 places, 636 transitions, 1282 flow. Second operand has 3 states, 3 states have (on average 679.3333333333334) internal successors, (2038), 3 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:39,245 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:39,245 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 678 of 718 [2022-11-16 11:48:39,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:39,412 INFO L130 PetriNetUnfolder]: 24/755 cut-off events. [2022-11-16 11:48:39,413 INFO L131 PetriNetUnfolder]: For 11/12 co-relation queries the response was YES. [2022-11-16 11:48:39,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 800 conditions, 755 events. 24/755 cut-off events. For 11/12 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1743 event pairs, 9 based on Foata normal form. 0/660 useless extension candidates. Maximal degree in co-relation 761. Up to 35 conditions per place. [2022-11-16 11:48:39,422 INFO L137 encePairwiseOnDemand]: 715/718 looper letters, 16 selfloop transitions, 2 changer transitions 0/635 dead transitions. [2022-11-16 11:48:39,422 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 632 places, 635 transitions, 1316 flow [2022-11-16 11:48:39,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:48:39,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:48:39,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2053 transitions. [2022-11-16 11:48:39,427 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9531104921077066 [2022-11-16 11:48:39,427 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2053 transitions. [2022-11-16 11:48:39,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2053 transitions. [2022-11-16 11:48:39,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:39,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2053 transitions. [2022-11-16 11:48:39,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 684.3333333333334) internal successors, (2053), 3 states have internal predecessors, (2053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:39,438 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:39,439 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:39,439 INFO L175 Difference]: Start difference. First operand has 631 places, 636 transitions, 1282 flow. Second operand 3 states and 2053 transitions. [2022-11-16 11:48:39,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 632 places, 635 transitions, 1316 flow [2022-11-16 11:48:39,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 630 places, 635 transitions, 1312 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:48:39,450 INFO L231 Difference]: Finished difference. Result has 630 places, 635 transitions, 1280 flow [2022-11-16 11:48:39,451 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1276, PETRI_DIFFERENCE_MINUEND_PLACES=628, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=635, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=633, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1280, PETRI_PLACES=630, PETRI_TRANSITIONS=635} [2022-11-16 11:48:39,452 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -39 predicate places. [2022-11-16 11:48:39,452 INFO L495 AbstractCegarLoop]: Abstraction has has 630 places, 635 transitions, 1280 flow [2022-11-16 11:48:39,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 679.3333333333334) internal successors, (2038), 3 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:39,453 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:39,453 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:39,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:48:39,454 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-16 11:48:39,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:39,454 INFO L85 PathProgramCache]: Analyzing trace with hash 877256777, now seen corresponding path program 1 times [2022-11-16 11:48:39,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:39,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773622460] [2022-11-16 11:48:39,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:39,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:39,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:39,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:39,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773622460] [2022-11-16 11:48:39,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773622460] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:39,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:39,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:48:39,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659190034] [2022-11-16 11:48:39,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:39,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:48:39,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:39,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:48:39,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:48:39,518 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 675 out of 718 [2022-11-16 11:48:39,521 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 630 places, 635 transitions, 1280 flow. Second operand has 3 states, 3 states have (on average 676.3333333333334) internal successors, (2029), 3 states have internal predecessors, (2029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:39,521 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:39,521 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 675 of 718 [2022-11-16 11:48:39,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:39,928 INFO L130 PetriNetUnfolder]: 86/1900 cut-off events. [2022-11-16 11:48:39,928 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-11-16 11:48:39,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2037 conditions, 1900 events. 86/1900 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10226 event pairs, 48 based on Foata normal form. 0/1620 useless extension candidates. Maximal degree in co-relation 1998. Up to 121 conditions per place. [2022-11-16 11:48:39,945 INFO L137 encePairwiseOnDemand]: 715/718 looper letters, 19 selfloop transitions, 2 changer transitions 0/634 dead transitions. [2022-11-16 11:48:39,946 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 631 places, 634 transitions, 1320 flow [2022-11-16 11:48:39,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:48:39,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:48:39,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2047 transitions. [2022-11-16 11:48:39,951 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9503249767873724 [2022-11-16 11:48:39,951 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2047 transitions. [2022-11-16 11:48:39,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2047 transitions. [2022-11-16 11:48:39,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:39,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2047 transitions. [2022-11-16 11:48:39,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 682.3333333333334) internal successors, (2047), 3 states have internal predecessors, (2047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:39,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:39,962 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:39,963 INFO L175 Difference]: Start difference. First operand has 630 places, 635 transitions, 1280 flow. Second operand 3 states and 2047 transitions. [2022-11-16 11:48:39,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 631 places, 634 transitions, 1320 flow [2022-11-16 11:48:39,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 629 places, 634 transitions, 1316 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:48:39,973 INFO L231 Difference]: Finished difference. Result has 629 places, 634 transitions, 1278 flow [2022-11-16 11:48:39,974 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1274, PETRI_DIFFERENCE_MINUEND_PLACES=627, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=634, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=632, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1278, PETRI_PLACES=629, PETRI_TRANSITIONS=634} [2022-11-16 11:48:39,975 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -40 predicate places. [2022-11-16 11:48:39,975 INFO L495 AbstractCegarLoop]: Abstraction has has 629 places, 634 transitions, 1278 flow [2022-11-16 11:48:39,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 676.3333333333334) internal successors, (2029), 3 states have internal predecessors, (2029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:39,976 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:39,977 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:39,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:48:39,977 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-16 11:48:39,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:39,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1773547042, now seen corresponding path program 1 times [2022-11-16 11:48:39,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:39,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714575054] [2022-11-16 11:48:39,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:39,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:40,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:40,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:40,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:40,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714575054] [2022-11-16 11:48:40,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714575054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:40,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:40,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:48:40,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905955897] [2022-11-16 11:48:40,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:40,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:48:40,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:40,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:48:40,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:48:40,552 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 581 out of 718 [2022-11-16 11:48:40,556 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 629 places, 634 transitions, 1278 flow. Second operand has 6 states, 6 states have (on average 582.8333333333334) internal successors, (3497), 6 states have internal predecessors, (3497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:40,556 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:40,556 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 581 of 718 [2022-11-16 11:48:40,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:50,964 INFO L130 PetriNetUnfolder]: 13395/51167 cut-off events. [2022-11-16 11:48:50,964 INFO L131 PetriNetUnfolder]: For 62/67 co-relation queries the response was YES. [2022-11-16 11:48:51,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70760 conditions, 51167 events. 13395/51167 cut-off events. For 62/67 co-relation queries the response was YES. Maximal size of possible extension queue 708. Compared 634825 event pairs, 12300 based on Foata normal form. 0/42422 useless extension candidates. Maximal degree in co-relation 70722. Up to 19545 conditions per place. [2022-11-16 11:48:51,473 INFO L137 encePairwiseOnDemand]: 706/718 looper letters, 104 selfloop transitions, 10 changer transitions 0/632 dead transitions. [2022-11-16 11:48:51,473 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 632 places, 632 transitions, 1502 flow [2022-11-16 11:48:51,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 11:48:51,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 11:48:51,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3602 transitions. [2022-11-16 11:48:51,481 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8361188486536676 [2022-11-16 11:48:51,481 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3602 transitions. [2022-11-16 11:48:51,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3602 transitions. [2022-11-16 11:48:51,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:51,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3602 transitions. [2022-11-16 11:48:51,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 600.3333333333334) internal successors, (3602), 6 states have internal predecessors, (3602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:51,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 718.0) internal successors, (5026), 7 states have internal predecessors, (5026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:51,500 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 718.0) internal successors, (5026), 7 states have internal predecessors, (5026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:51,501 INFO L175 Difference]: Start difference. First operand has 629 places, 634 transitions, 1278 flow. Second operand 6 states and 3602 transitions. [2022-11-16 11:48:51,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 632 places, 632 transitions, 1502 flow [2022-11-16 11:48:51,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 630 places, 632 transitions, 1498 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:48:51,512 INFO L231 Difference]: Finished difference. Result has 630 places, 632 transitions, 1290 flow [2022-11-16 11:48:51,514 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1270, PETRI_DIFFERENCE_MINUEND_PLACES=625, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=632, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=622, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1290, PETRI_PLACES=630, PETRI_TRANSITIONS=632} [2022-11-16 11:48:51,517 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -39 predicate places. [2022-11-16 11:48:51,517 INFO L495 AbstractCegarLoop]: Abstraction has has 630 places, 632 transitions, 1290 flow [2022-11-16 11:48:51,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 582.8333333333334) internal successors, (3497), 6 states have internal predecessors, (3497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:51,519 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:51,520 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:51,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:48:51,520 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-16 11:48:51,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:51,521 INFO L85 PathProgramCache]: Analyzing trace with hash 543053272, now seen corresponding path program 1 times [2022-11-16 11:48:51,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:51,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876226102] [2022-11-16 11:48:51,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:51,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:51,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:51,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:51,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:51,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876226102] [2022-11-16 11:48:51,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876226102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:51,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:51,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:48:51,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493529732] [2022-11-16 11:48:51,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:51,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:48:51,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:51,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:48:51,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:48:51,597 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 675 out of 718 [2022-11-16 11:48:51,599 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 630 places, 632 transitions, 1290 flow. Second operand has 3 states, 3 states have (on average 676.3333333333334) internal successors, (2029), 3 states have internal predecessors, (2029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:51,599 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:51,599 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 675 of 718 [2022-11-16 11:48:51,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:48:51,972 INFO L130 PetriNetUnfolder]: 81/1852 cut-off events. [2022-11-16 11:48:51,972 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-11-16 11:48:51,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1995 conditions, 1852 events. 81/1852 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 9847 event pairs, 48 based on Foata normal form. 0/1594 useless extension candidates. Maximal degree in co-relation 1962. Up to 119 conditions per place. [2022-11-16 11:48:51,989 INFO L137 encePairwiseOnDemand]: 715/718 looper letters, 19 selfloop transitions, 2 changer transitions 0/631 dead transitions. [2022-11-16 11:48:51,989 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 631 places, 631 transitions, 1330 flow [2022-11-16 11:48:51,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:48:51,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:48:51,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2047 transitions. [2022-11-16 11:48:51,995 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9503249767873724 [2022-11-16 11:48:51,995 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2047 transitions. [2022-11-16 11:48:51,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2047 transitions. [2022-11-16 11:48:51,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:48:51,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2047 transitions. [2022-11-16 11:48:52,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 682.3333333333334) internal successors, (2047), 3 states have internal predecessors, (2047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:52,005 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:52,006 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:52,006 INFO L175 Difference]: Start difference. First operand has 630 places, 632 transitions, 1290 flow. Second operand 3 states and 2047 transitions. [2022-11-16 11:48:52,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 631 places, 631 transitions, 1330 flow [2022-11-16 11:48:52,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 626 places, 631 transitions, 1310 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-16 11:48:52,017 INFO L231 Difference]: Finished difference. Result has 626 places, 631 transitions, 1272 flow [2022-11-16 11:48:52,018 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1268, PETRI_DIFFERENCE_MINUEND_PLACES=624, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=631, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=629, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1272, PETRI_PLACES=626, PETRI_TRANSITIONS=631} [2022-11-16 11:48:52,021 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -43 predicate places. [2022-11-16 11:48:52,021 INFO L495 AbstractCegarLoop]: Abstraction has has 626 places, 631 transitions, 1272 flow [2022-11-16 11:48:52,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 676.3333333333334) internal successors, (2029), 3 states have internal predecessors, (2029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:52,022 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:48:52,022 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:48:52,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:48:52,023 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-16 11:48:52,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:48:52,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1412765037, now seen corresponding path program 1 times [2022-11-16 11:48:52,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:48:52,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254738856] [2022-11-16 11:48:52,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:48:52,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:48:52,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:48:52,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:48:52,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:48:52,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254738856] [2022-11-16 11:48:52,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254738856] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:48:52,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:48:52,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:48:52,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313927223] [2022-11-16 11:48:52,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:48:52,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:48:52,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:48:52,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:48:52,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:48:52,242 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 581 out of 718 [2022-11-16 11:48:52,243 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 626 places, 631 transitions, 1272 flow. Second operand has 3 states, 3 states have (on average 583.6666666666666) internal successors, (1751), 3 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:48:52,244 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:48:52,244 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 581 of 718 [2022-11-16 11:48:52,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:49:02,160 INFO L130 PetriNetUnfolder]: 13395/51164 cut-off events. [2022-11-16 11:49:02,160 INFO L131 PetriNetUnfolder]: For 62/67 co-relation queries the response was YES. [2022-11-16 11:49:02,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70755 conditions, 51164 events. 13395/51164 cut-off events. For 62/67 co-relation queries the response was YES. Maximal size of possible extension queue 708. Compared 635070 event pairs, 12300 based on Foata normal form. 0/42422 useless extension candidates. Maximal degree in co-relation 70717. Up to 19549 conditions per place. [2022-11-16 11:49:02,590 INFO L137 encePairwiseOnDemand]: 712/718 looper letters, 108 selfloop transitions, 4 changer transitions 0/629 dead transitions. [2022-11-16 11:49:02,590 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 626 places, 629 transitions, 1492 flow [2022-11-16 11:49:02,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:49:02,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:49:02,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1857 transitions. [2022-11-16 11:49:02,596 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.862116991643454 [2022-11-16 11:49:02,596 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1857 transitions. [2022-11-16 11:49:02,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1857 transitions. [2022-11-16 11:49:02,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:49:02,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1857 transitions. [2022-11-16 11:49:02,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 619.0) internal successors, (1857), 3 states have internal predecessors, (1857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:02,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:02,608 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:02,608 INFO L175 Difference]: Start difference. First operand has 626 places, 631 transitions, 1272 flow. Second operand 3 states and 1857 transitions. [2022-11-16 11:49:02,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 626 places, 629 transitions, 1492 flow [2022-11-16 11:49:02,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 624 places, 629 transitions, 1488 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:49:02,623 INFO L231 Difference]: Finished difference. Result has 624 places, 629 transitions, 1272 flow [2022-11-16 11:49:02,624 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1264, PETRI_DIFFERENCE_MINUEND_PLACES=622, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=629, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=625, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1272, PETRI_PLACES=624, PETRI_TRANSITIONS=629} [2022-11-16 11:49:02,625 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -45 predicate places. [2022-11-16 11:49:02,625 INFO L495 AbstractCegarLoop]: Abstraction has has 624 places, 629 transitions, 1272 flow [2022-11-16 11:49:02,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 583.6666666666666) internal successors, (1751), 3 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:02,626 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:49:02,626 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:49:02,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 11:49:02,626 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-16 11:49:02,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:49:02,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1087806325, now seen corresponding path program 1 times [2022-11-16 11:49:02,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:49:02,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072565066] [2022-11-16 11:49:02,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:49:02,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:49:02,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:02,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:49:02,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:49:02,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072565066] [2022-11-16 11:49:02,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072565066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:49:02,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:49:02,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:49:02,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084518344] [2022-11-16 11:49:02,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:49:02,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:49:02,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:49:02,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:49:02,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:49:02,734 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 681 out of 718 [2022-11-16 11:49:02,737 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 624 places, 629 transitions, 1272 flow. Second operand has 3 states, 3 states have (on average 682.3333333333334) internal successors, (2047), 3 states have internal predecessors, (2047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:02,737 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:49:02,737 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 681 of 718 [2022-11-16 11:49:02,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:49:03,068 INFO L130 PetriNetUnfolder]: 43/1296 cut-off events. [2022-11-16 11:49:03,068 INFO L131 PetriNetUnfolder]: For 6/9 co-relation queries the response was YES. [2022-11-16 11:49:03,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1356 conditions, 1296 events. 43/1296 cut-off events. For 6/9 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 5176 event pairs, 15 based on Foata normal form. 0/1121 useless extension candidates. Maximal degree in co-relation 1335. Up to 45 conditions per place. [2022-11-16 11:49:03,083 INFO L137 encePairwiseOnDemand]: 715/718 looper letters, 13 selfloop transitions, 2 changer transitions 0/628 dead transitions. [2022-11-16 11:49:03,084 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 625 places, 628 transitions, 1300 flow [2022-11-16 11:49:03,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:49:03,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:49:03,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2059 transitions. [2022-11-16 11:49:03,090 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9558960074280408 [2022-11-16 11:49:03,090 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2059 transitions. [2022-11-16 11:49:03,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2059 transitions. [2022-11-16 11:49:03,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:49:03,093 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2059 transitions. [2022-11-16 11:49:03,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 686.3333333333334) internal successors, (2059), 3 states have internal predecessors, (2059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:03,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:03,105 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:03,105 INFO L175 Difference]: Start difference. First operand has 624 places, 629 transitions, 1272 flow. Second operand 3 states and 2059 transitions. [2022-11-16 11:49:03,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 625 places, 628 transitions, 1300 flow [2022-11-16 11:49:03,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 623 places, 628 transitions, 1292 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:49:03,118 INFO L231 Difference]: Finished difference. Result has 623 places, 628 transitions, 1266 flow [2022-11-16 11:49:03,120 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1262, PETRI_DIFFERENCE_MINUEND_PLACES=621, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=628, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=626, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1266, PETRI_PLACES=623, PETRI_TRANSITIONS=628} [2022-11-16 11:49:03,120 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -46 predicate places. [2022-11-16 11:49:03,120 INFO L495 AbstractCegarLoop]: Abstraction has has 623 places, 628 transitions, 1266 flow [2022-11-16 11:49:03,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 682.3333333333334) internal successors, (2047), 3 states have internal predecessors, (2047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:03,121 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:49:03,122 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:49:03,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 11:49:03,122 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-16 11:49:03,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:49:03,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1652689961, now seen corresponding path program 1 times [2022-11-16 11:49:03,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:49:03,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406164090] [2022-11-16 11:49:03,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:49:03,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:49:03,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:03,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:49:03,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:49:03,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406164090] [2022-11-16 11:49:03,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406164090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:49:03,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:49:03,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:49:03,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461325428] [2022-11-16 11:49:03,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:49:03,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:49:03,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:49:03,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:49:03,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:49:03,226 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 681 out of 718 [2022-11-16 11:49:03,228 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 623 places, 628 transitions, 1266 flow. Second operand has 3 states, 3 states have (on average 682.3333333333334) internal successors, (2047), 3 states have internal predecessors, (2047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:03,228 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:49:03,228 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 681 of 718 [2022-11-16 11:49:03,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:49:03,550 INFO L130 PetriNetUnfolder]: 45/1278 cut-off events. [2022-11-16 11:49:03,550 INFO L131 PetriNetUnfolder]: For 9/10 co-relation queries the response was YES. [2022-11-16 11:49:03,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1339 conditions, 1278 events. 45/1278 cut-off events. For 9/10 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 5205 event pairs, 15 based on Foata normal form. 0/1105 useless extension candidates. Maximal degree in co-relation 1300. Up to 48 conditions per place. [2022-11-16 11:49:03,563 INFO L137 encePairwiseOnDemand]: 715/718 looper letters, 13 selfloop transitions, 2 changer transitions 0/627 dead transitions. [2022-11-16 11:49:03,563 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 624 places, 627 transitions, 1294 flow [2022-11-16 11:49:03,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:49:03,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:49:03,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2059 transitions. [2022-11-16 11:49:03,569 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9558960074280408 [2022-11-16 11:49:03,569 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2059 transitions. [2022-11-16 11:49:03,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2059 transitions. [2022-11-16 11:49:03,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:49:03,570 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2059 transitions. [2022-11-16 11:49:03,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 686.3333333333334) internal successors, (2059), 3 states have internal predecessors, (2059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:03,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:03,580 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:03,581 INFO L175 Difference]: Start difference. First operand has 623 places, 628 transitions, 1266 flow. Second operand 3 states and 2059 transitions. [2022-11-16 11:49:03,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 624 places, 627 transitions, 1294 flow [2022-11-16 11:49:03,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 622 places, 627 transitions, 1290 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:49:03,593 INFO L231 Difference]: Finished difference. Result has 622 places, 627 transitions, 1264 flow [2022-11-16 11:49:03,593 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1260, PETRI_DIFFERENCE_MINUEND_PLACES=620, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=627, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=625, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1264, PETRI_PLACES=622, PETRI_TRANSITIONS=627} [2022-11-16 11:49:03,594 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -47 predicate places. [2022-11-16 11:49:03,596 INFO L495 AbstractCegarLoop]: Abstraction has has 622 places, 627 transitions, 1264 flow [2022-11-16 11:49:03,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 682.3333333333334) internal successors, (2047), 3 states have internal predecessors, (2047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:03,597 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:49:03,598 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:49:03,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 11:49:03,598 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-16 11:49:03,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:49:03,599 INFO L85 PathProgramCache]: Analyzing trace with hash 357486500, now seen corresponding path program 1 times [2022-11-16 11:49:03,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:49:03,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45892204] [2022-11-16 11:49:03,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:49:03,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:49:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:03,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:49:03,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:49:03,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45892204] [2022-11-16 11:49:03,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45892204] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:49:03,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:49:03,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:49:03,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767764692] [2022-11-16 11:49:03,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:49:03,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:49:03,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:49:03,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:49:03,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:49:03,723 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 678 out of 718 [2022-11-16 11:49:03,725 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 622 places, 627 transitions, 1264 flow. Second operand has 3 states, 3 states have (on average 679.6666666666666) internal successors, (2039), 3 states have internal predecessors, (2039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:03,725 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:49:03,726 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 678 of 718 [2022-11-16 11:49:03,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:49:04,116 INFO L130 PetriNetUnfolder]: 57/1636 cut-off events. [2022-11-16 11:49:04,116 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-16 11:49:04,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1714 conditions, 1636 events. 57/1636 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 7828 event pairs, 19 based on Foata normal form. 0/1430 useless extension candidates. Maximal degree in co-relation 1676. Up to 61 conditions per place. [2022-11-16 11:49:04,131 INFO L137 encePairwiseOnDemand]: 712/718 looper letters, 15 selfloop transitions, 2 changer transitions 0/626 dead transitions. [2022-11-16 11:49:04,131 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 620 places, 626 transitions, 1297 flow [2022-11-16 11:49:04,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:49:04,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:49:04,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2055 transitions. [2022-11-16 11:49:04,137 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9540389972144847 [2022-11-16 11:49:04,137 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2055 transitions. [2022-11-16 11:49:04,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2055 transitions. [2022-11-16 11:49:04,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:49:04,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2055 transitions. [2022-11-16 11:49:04,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 685.0) internal successors, (2055), 3 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:04,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:04,148 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:04,148 INFO L175 Difference]: Start difference. First operand has 622 places, 627 transitions, 1264 flow. Second operand 3 states and 2055 transitions. [2022-11-16 11:49:04,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 620 places, 626 transitions, 1297 flow [2022-11-16 11:49:04,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 618 places, 626 transitions, 1293 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:49:04,162 INFO L231 Difference]: Finished difference. Result has 619 places, 625 transitions, 1266 flow [2022-11-16 11:49:04,163 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1252, PETRI_DIFFERENCE_MINUEND_PLACES=616, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=623, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=621, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1266, PETRI_PLACES=619, PETRI_TRANSITIONS=625} [2022-11-16 11:49:04,163 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -50 predicate places. [2022-11-16 11:49:04,164 INFO L495 AbstractCegarLoop]: Abstraction has has 619 places, 625 transitions, 1266 flow [2022-11-16 11:49:04,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 679.6666666666666) internal successors, (2039), 3 states have internal predecessors, (2039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:04,165 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:49:04,165 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:49:04,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 11:49:04,165 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-16 11:49:04,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:49:04,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1942595200, now seen corresponding path program 1 times [2022-11-16 11:49:04,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:49:04,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633655325] [2022-11-16 11:49:04,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:49:04,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:49:04,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:04,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:49:04,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:49:04,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633655325] [2022-11-16 11:49:04,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633655325] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:49:04,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:49:04,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:49:04,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320957722] [2022-11-16 11:49:04,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:49:04,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:49:04,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:49:04,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:49:04,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:49:04,271 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 678 out of 718 [2022-11-16 11:49:04,274 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 619 places, 625 transitions, 1266 flow. Second operand has 3 states, 3 states have (on average 680.0) internal successors, (2040), 3 states have internal predecessors, (2040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:04,274 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:49:04,274 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 678 of 718 [2022-11-16 11:49:04,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:49:04,690 INFO L130 PetriNetUnfolder]: 57/1657 cut-off events. [2022-11-16 11:49:04,690 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-16 11:49:04,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1741 conditions, 1657 events. 57/1657 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8256 event pairs, 15 based on Foata normal form. 0/1467 useless extension candidates. Maximal degree in co-relation 1703. Up to 62 conditions per place. [2022-11-16 11:49:04,704 INFO L137 encePairwiseOnDemand]: 712/718 looper letters, 15 selfloop transitions, 2 changer transitions 0/624 dead transitions. [2022-11-16 11:49:04,705 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 617 places, 624 transitions, 1299 flow [2022-11-16 11:49:04,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:49:04,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:49:04,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2055 transitions. [2022-11-16 11:49:04,710 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9540389972144847 [2022-11-16 11:49:04,710 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2055 transitions. [2022-11-16 11:49:04,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2055 transitions. [2022-11-16 11:49:04,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:49:04,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2055 transitions. [2022-11-16 11:49:04,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 685.0) internal successors, (2055), 3 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:04,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:04,721 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:04,721 INFO L175 Difference]: Start difference. First operand has 619 places, 625 transitions, 1266 flow. Second operand 3 states and 2055 transitions. [2022-11-16 11:49:04,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 617 places, 624 transitions, 1299 flow [2022-11-16 11:49:04,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 617 places, 624 transitions, 1299 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:49:04,741 INFO L231 Difference]: Finished difference. Result has 618 places, 623 transitions, 1272 flow [2022-11-16 11:49:04,742 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1258, PETRI_DIFFERENCE_MINUEND_PLACES=615, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=621, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=619, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1272, PETRI_PLACES=618, PETRI_TRANSITIONS=623} [2022-11-16 11:49:04,742 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -51 predicate places. [2022-11-16 11:49:04,743 INFO L495 AbstractCegarLoop]: Abstraction has has 618 places, 623 transitions, 1272 flow [2022-11-16 11:49:04,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 680.0) internal successors, (2040), 3 states have internal predecessors, (2040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:04,744 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:49:04,744 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:49:04,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 11:49:04,744 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-16 11:49:04,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:49:04,745 INFO L85 PathProgramCache]: Analyzing trace with hash 512039882, now seen corresponding path program 1 times [2022-11-16 11:49:04,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:49:04,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405710523] [2022-11-16 11:49:04,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:49:04,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:49:04,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:05,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:49:05,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:49:05,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405710523] [2022-11-16 11:49:05,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405710523] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:49:05,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:49:05,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 11:49:05,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865845362] [2022-11-16 11:49:05,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:49:05,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 11:49:05,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:49:05,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:49:05,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:49:05,061 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 610 out of 718 [2022-11-16 11:49:05,065 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 618 places, 623 transitions, 1272 flow. Second operand has 7 states, 7 states have (on average 614.5714285714286) internal successors, (4302), 7 states have internal predecessors, (4302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:05,065 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:49:05,065 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 610 of 718 [2022-11-16 11:49:05,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:49:07,107 INFO L130 PetriNetUnfolder]: 934/8415 cut-off events. [2022-11-16 11:49:07,107 INFO L131 PetriNetUnfolder]: For 44/44 co-relation queries the response was YES. [2022-11-16 11:49:07,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10186 conditions, 8415 events. 934/8415 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 83317 event pairs, 720 based on Foata normal form. 0/7154 useless extension candidates. Maximal degree in co-relation 10144. Up to 845 conditions per place. [2022-11-16 11:49:07,154 INFO L137 encePairwiseOnDemand]: 708/718 looper letters, 162 selfloop transitions, 9 changer transitions 0/709 dead transitions. [2022-11-16 11:49:07,154 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 625 places, 709 transitions, 1790 flow [2022-11-16 11:49:07,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:49:07,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-16 11:49:07,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 5052 transitions. [2022-11-16 11:49:07,164 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8795264623955432 [2022-11-16 11:49:07,165 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 5052 transitions. [2022-11-16 11:49:07,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 5052 transitions. [2022-11-16 11:49:07,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:49:07,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 5052 transitions. [2022-11-16 11:49:07,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 631.5) internal successors, (5052), 8 states have internal predecessors, (5052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:07,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 718.0) internal successors, (6462), 9 states have internal predecessors, (6462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:07,186 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 718.0) internal successors, (6462), 9 states have internal predecessors, (6462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:07,186 INFO L175 Difference]: Start difference. First operand has 618 places, 623 transitions, 1272 flow. Second operand 8 states and 5052 transitions. [2022-11-16 11:49:07,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 625 places, 709 transitions, 1790 flow [2022-11-16 11:49:07,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 625 places, 709 transitions, 1790 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:49:07,199 INFO L231 Difference]: Finished difference. Result has 630 places, 629 transitions, 1329 flow [2022-11-16 11:49:07,200 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1272, PETRI_DIFFERENCE_MINUEND_PLACES=618, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=623, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=614, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1329, PETRI_PLACES=630, PETRI_TRANSITIONS=629} [2022-11-16 11:49:07,200 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -39 predicate places. [2022-11-16 11:49:07,200 INFO L495 AbstractCegarLoop]: Abstraction has has 630 places, 629 transitions, 1329 flow [2022-11-16 11:49:07,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 614.5714285714286) internal successors, (4302), 7 states have internal predecessors, (4302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:07,202 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:49:07,202 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:49:07,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 11:49:07,203 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-16 11:49:07,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:49:07,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1777232942, now seen corresponding path program 1 times [2022-11-16 11:49:07,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:49:07,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981454470] [2022-11-16 11:49:07,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:49:07,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:49:07,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:08,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:49:08,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:49:08,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981454470] [2022-11-16 11:49:08,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981454470] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:49:08,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:49:08,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:49:08,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187165690] [2022-11-16 11:49:08,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:49:08,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:49:08,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:49:08,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:49:08,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:49:08,143 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 589 out of 718 [2022-11-16 11:49:08,146 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 630 places, 629 transitions, 1329 flow. Second operand has 6 states, 6 states have (on average 591.5) internal successors, (3549), 6 states have internal predecessors, (3549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:49:08,146 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:49:08,147 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 589 of 718 [2022-11-16 11:49:08,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand