./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b 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_f73a1615-9b2d-4fa6-90fa-455abf247c2b/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73a1615-9b2d-4fa6-90fa-455abf247c2b/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73a1615-9b2d-4fa6-90fa-455abf247c2b/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73a1615-9b2d-4fa6-90fa-455abf247c2b/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73a1615-9b2d-4fa6-90fa-455abf247c2b/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73a1615-9b2d-4fa6-90fa-455abf247c2b/bin/uautomizer-ug76WZFUDN --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 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 --- 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-6b4ec56 [2022-11-20 09:36:51,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:36:51,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:36:51,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:36:51,266 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:36:51,278 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:36:51,280 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:36:51,281 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:36:51,283 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:36:51,284 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:36:51,284 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:36:51,285 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:36:51,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:36:51,287 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:36:51,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:36:51,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:36:51,289 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:36:51,290 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:36:51,295 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:36:51,303 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:36:51,306 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:36:51,313 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:36:51,314 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:36:51,315 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:36:51,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:36:51,318 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:36:51,319 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:36:51,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:36:51,320 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:36:51,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:36:51,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:36:51,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:36:51,327 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:36:51,329 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:36:51,330 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:36:51,330 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:36:51,331 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:36:51,331 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:36:51,331 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:36:51,334 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:36:51,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:36:51,336 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73a1615-9b2d-4fa6-90fa-455abf247c2b/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 09:36:51,373 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:36:51,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:36:51,374 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:36:51,375 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:36:51,376 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:36:51,376 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:36:51,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:36:51,377 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:36:51,377 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:36:51,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:36:51,378 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 09:36:51,378 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 09:36:51,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:36:51,379 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 09:36:51,379 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:36:51,379 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:36:51,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:36:51,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:36:51,379 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 09:36:51,380 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 09:36:51,380 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:36:51,380 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:36:51,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:36:51,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:36:51,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:36:51,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:36:51,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:36:51,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:36:51,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:36:51,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:36:51,382 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:36:51,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:36:51,382 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:36:51,382 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:36:51,383 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:36:51,383 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_f73a1615-9b2d-4fa6-90fa-455abf247c2b/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73a1615-9b2d-4fa6-90fa-455abf247c2b/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 [2022-11-20 09:36:51,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:36:51,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:36:51,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:36:51,759 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:36:51,760 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:36:51,761 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73a1615-9b2d-4fa6-90fa-455abf247c2b/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2022-11-20 09:36:54,792 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:36:55,106 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:36:55,107 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73a1615-9b2d-4fa6-90fa-455abf247c2b/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2022-11-20 09:36:55,123 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73a1615-9b2d-4fa6-90fa-455abf247c2b/bin/uautomizer-ug76WZFUDN/data/204659ad0/cc9fdb2e60c84735a410b9c4c68ee457/FLAG0a98811e7 [2022-11-20 09:36:55,138 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73a1615-9b2d-4fa6-90fa-455abf247c2b/bin/uautomizer-ug76WZFUDN/data/204659ad0/cc9fdb2e60c84735a410b9c4c68ee457 [2022-11-20 09:36:55,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:36:55,142 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:36:55,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:36:55,144 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:36:55,147 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:36:55,148 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:36:55" (1/1) ... [2022-11-20 09:36:55,149 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@677fc374 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:55, skipping insertion in model container [2022-11-20 09:36:55,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:36:55" (1/1) ... [2022-11-20 09:36:55,157 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:36:55,204 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:36:55,627 WARN L237 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_f73a1615-9b2d-4fa6-90fa-455abf247c2b/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2022-11-20 09:36:55,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:36:55,686 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:36:55,734 WARN L237 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_f73a1615-9b2d-4fa6-90fa-455abf247c2b/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2022-11-20 09:36:55,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:36:55,788 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:36:55,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:55 WrapperNode [2022-11-20 09:36:55,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:36:55,790 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:36:55,790 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:36:55,790 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:36:55,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:55" (1/1) ... [2022-11-20 09:36:55,812 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:55" (1/1) ... [2022-11-20 09:36:55,832 INFO L138 Inliner]: procedures = 170, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2022-11-20 09:36:55,833 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:36:55,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:36:55,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:36:55,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:36:55,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:55" (1/1) ... [2022-11-20 09:36:55,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:55" (1/1) ... [2022-11-20 09:36:55,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:55" (1/1) ... [2022-11-20 09:36:55,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:55" (1/1) ... [2022-11-20 09:36:55,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:55" (1/1) ... [2022-11-20 09:36:55,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:55" (1/1) ... [2022-11-20 09:36:55,893 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:55" (1/1) ... [2022-11-20 09:36:55,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:55" (1/1) ... [2022-11-20 09:36:55,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:36:55,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:36:55,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:36:55,898 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:36:55,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:55" (1/1) ... [2022-11-20 09:36:55,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:36:55,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73a1615-9b2d-4fa6-90fa-455abf247c2b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:36:55,941 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73a1615-9b2d-4fa6-90fa-455abf247c2b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:36:55,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73a1615-9b2d-4fa6-90fa-455abf247c2b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:36:55,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 09:36:55,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 09:36:55,996 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 09:36:55,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:36:55,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:36:55,996 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 09:36:55,996 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 09:36:55,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:36:55,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 09:36:55,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:36:55,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:36:55,998 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 09:36:56,158 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:36:56,161 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:36:56,503 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:36:56,511 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:36:56,511 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-20 09:36:56,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:36:56 BoogieIcfgContainer [2022-11-20 09:36:56,514 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:36:56,516 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:36:56,516 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:36:56,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:36:56,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:36:55" (1/3) ... [2022-11-20 09:36:56,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba8f110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:36:56, skipping insertion in model container [2022-11-20 09:36:56,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:36:55" (2/3) ... [2022-11-20 09:36:56,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba8f110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:36:56, skipping insertion in model container [2022-11-20 09:36:56,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:36:56" (3/3) ... [2022-11-20 09:36:56,522 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2022-11-20 09:36:56,530 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 09:36:56,541 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:36:56,541 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-20 09:36:56,542 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 09:36:56,625 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-20 09:36:56,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 149 transitions, 306 flow [2022-11-20 09:36:56,743 INFO L130 PetriNetUnfolder]: 9/148 cut-off events. [2022-11-20 09:36:56,743 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 09:36:56,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 148 events. 9/148 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 289 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 96. Up to 3 conditions per place. [2022-11-20 09:36:56,753 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 149 transitions, 306 flow [2022-11-20 09:36:56,764 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 133 places, 138 transitions, 279 flow [2022-11-20 09:36:56,779 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:36:56,787 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;@33ea98c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:36:56,787 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-11-20 09:36:56,830 INFO L130 PetriNetUnfolder]: 2/84 cut-off events. [2022-11-20 09:36:56,830 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 09:36:56,831 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:36:56,831 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] [2022-11-20 09:36:56,832 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-20 09:36:56,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:36:56,840 INFO L85 PathProgramCache]: Analyzing trace with hash -805644313, now seen corresponding path program 1 times [2022-11-20 09:36:56,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:36:56,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135062902] [2022-11-20 09:36:56,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:36:56,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:36:57,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:36:57,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:36:57,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:36:57,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135062902] [2022-11-20 09:36:57,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135062902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:36:57,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:36:57,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:36:57,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561965578] [2022-11-20 09:36:57,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:36:57,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:36:57,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:36:58,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:36:58,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:36:58,025 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 149 [2022-11-20 09:36:58,032 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 138 transitions, 279 flow. Second operand has 6 states, 6 states have (on average 96.66666666666667) internal successors, (580), 6 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:36:58,033 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:36:58,033 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 149 [2022-11-20 09:36:58,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:36:58,763 INFO L130 PetriNetUnfolder]: 474/1648 cut-off events. [2022-11-20 09:36:58,764 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 09:36:58,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2671 conditions, 1648 events. 474/1648 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 10448 event pairs, 34 based on Foata normal form. 225/1692 useless extension candidates. Maximal degree in co-relation 2620. Up to 550 conditions per place. [2022-11-20 09:36:58,776 INFO L137 encePairwiseOnDemand]: 126/149 looper letters, 110 selfloop transitions, 37 changer transitions 0/234 dead transitions. [2022-11-20 09:36:58,776 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 234 transitions, 765 flow [2022-11-20 09:36:58,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:36:58,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:36:58,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 753 transitions. [2022-11-20 09:36:58,791 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8422818791946308 [2022-11-20 09:36:58,792 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 753 transitions. [2022-11-20 09:36:58,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 753 transitions. [2022-11-20 09:36:58,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:36:58,797 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 753 transitions. [2022-11-20 09:36:58,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 125.5) internal successors, (753), 6 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:36:58,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:36:58,809 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:36:58,811 INFO L175 Difference]: Start difference. First operand has 133 places, 138 transitions, 279 flow. Second operand 6 states and 753 transitions. [2022-11-20 09:36:58,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 234 transitions, 765 flow [2022-11-20 09:36:58,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 234 transitions, 764 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 09:36:58,820 INFO L231 Difference]: Finished difference. Result has 141 places, 164 transitions, 504 flow [2022-11-20 09:36:58,822 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=504, PETRI_PLACES=141, PETRI_TRANSITIONS=164} [2022-11-20 09:36:58,826 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 8 predicate places. [2022-11-20 09:36:58,826 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 164 transitions, 504 flow [2022-11-20 09:36:58,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 96.66666666666667) internal successors, (580), 6 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:36:58,827 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:36:58,827 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] [2022-11-20 09:36:58,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 09:36:58,828 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-20 09:36:58,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:36:58,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1779184503, now seen corresponding path program 1 times [2022-11-20 09:36:58,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:36:58,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570263265] [2022-11-20 09:36:58,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:36:58,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:36:58,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:36:59,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:36:59,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:36:59,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570263265] [2022-11-20 09:36:59,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570263265] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:36:59,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:36:59,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:36:59,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796442725] [2022-11-20 09:36:59,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:36:59,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:36:59,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:36:59,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:36:59,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:36:59,166 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 149 [2022-11-20 09:36:59,167 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 164 transitions, 504 flow. Second operand has 6 states, 6 states have (on average 97.33333333333333) internal successors, (584), 6 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:36:59,167 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:36:59,168 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 149 [2022-11-20 09:36:59,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:36:59,732 INFO L130 PetriNetUnfolder]: 494/1663 cut-off events. [2022-11-20 09:36:59,732 INFO L131 PetriNetUnfolder]: For 544/544 co-relation queries the response was YES. [2022-11-20 09:36:59,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3364 conditions, 1663 events. 494/1663 cut-off events. For 544/544 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 10172 event pairs, 160 based on Foata normal form. 0/1527 useless extension candidates. Maximal degree in co-relation 3312. Up to 645 conditions per place. [2022-11-20 09:36:59,744 INFO L137 encePairwiseOnDemand]: 137/149 looper letters, 122 selfloop transitions, 18 changer transitions 0/226 dead transitions. [2022-11-20 09:36:59,744 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 226 transitions, 1028 flow [2022-11-20 09:36:59,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:36:59,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:36:59,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 666 transitions. [2022-11-20 09:36:59,747 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7449664429530202 [2022-11-20 09:36:59,747 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 666 transitions. [2022-11-20 09:36:59,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 666 transitions. [2022-11-20 09:36:59,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:36:59,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 666 transitions. [2022-11-20 09:36:59,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 111.0) internal successors, (666), 6 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:36:59,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:36:59,754 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:36:59,754 INFO L175 Difference]: Start difference. First operand has 141 places, 164 transitions, 504 flow. Second operand 6 states and 666 transitions. [2022-11-20 09:36:59,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 226 transitions, 1028 flow [2022-11-20 09:36:59,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 226 transitions, 1028 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 09:36:59,770 INFO L231 Difference]: Finished difference. Result has 144 places, 162 transitions, 536 flow [2022-11-20 09:36:59,771 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=500, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=536, PETRI_PLACES=144, PETRI_TRANSITIONS=162} [2022-11-20 09:36:59,772 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 11 predicate places. [2022-11-20 09:36:59,772 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 162 transitions, 536 flow [2022-11-20 09:36:59,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 97.33333333333333) internal successors, (584), 6 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:36:59,773 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:36:59,773 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] [2022-11-20 09:36:59,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 09:36:59,775 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-20 09:36:59,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:36:59,776 INFO L85 PathProgramCache]: Analyzing trace with hash -107015263, now seen corresponding path program 1 times [2022-11-20 09:36:59,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:36:59,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321428379] [2022-11-20 09:36:59,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:36:59,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:36:59,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:37:00,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:37:00,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:37:00,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321428379] [2022-11-20 09:37:00,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321428379] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:37:00,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:37:00,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:37:00,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757814542] [2022-11-20 09:37:00,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:37:00,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:37:00,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:37:00,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:37:00,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:37:00,196 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 149 [2022-11-20 09:37:00,197 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 162 transitions, 536 flow. Second operand has 6 states, 6 states have (on average 96.5) internal successors, (579), 6 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:00,197 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:37:00,197 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 149 [2022-11-20 09:37:00,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:37:00,860 INFO L130 PetriNetUnfolder]: 591/1957 cut-off events. [2022-11-20 09:37:00,860 INFO L131 PetriNetUnfolder]: For 706/706 co-relation queries the response was YES. [2022-11-20 09:37:00,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4139 conditions, 1957 events. 591/1957 cut-off events. For 706/706 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 12542 event pairs, 297 based on Foata normal form. 0/1800 useless extension candidates. Maximal degree in co-relation 4086. Up to 1148 conditions per place. [2022-11-20 09:37:00,873 INFO L137 encePairwiseOnDemand]: 134/149 looper letters, 90 selfloop transitions, 48 changer transitions 0/222 dead transitions. [2022-11-20 09:37:00,873 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 222 transitions, 1028 flow [2022-11-20 09:37:00,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:37:00,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:37:00,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 660 transitions. [2022-11-20 09:37:00,877 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.738255033557047 [2022-11-20 09:37:00,877 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 660 transitions. [2022-11-20 09:37:00,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 660 transitions. [2022-11-20 09:37:00,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:37:00,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 660 transitions. [2022-11-20 09:37:00,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:00,883 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:00,883 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:00,884 INFO L175 Difference]: Start difference. First operand has 144 places, 162 transitions, 536 flow. Second operand 6 states and 660 transitions. [2022-11-20 09:37:00,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 222 transitions, 1028 flow [2022-11-20 09:37:00,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 222 transitions, 992 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 09:37:00,897 INFO L231 Difference]: Finished difference. Result has 149 places, 205 transitions, 888 flow [2022-11-20 09:37:00,897 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=500, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=888, PETRI_PLACES=149, PETRI_TRANSITIONS=205} [2022-11-20 09:37:00,900 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 16 predicate places. [2022-11-20 09:37:00,900 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 205 transitions, 888 flow [2022-11-20 09:37:00,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 96.5) internal successors, (579), 6 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:00,901 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:37:00,901 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:37:00,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 09:37:00,902 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-20 09:37:00,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:37:00,903 INFO L85 PathProgramCache]: Analyzing trace with hash 113363352, now seen corresponding path program 1 times [2022-11-20 09:37:00,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:37:00,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461774423] [2022-11-20 09:37:00,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:37:00,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:37:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:37:01,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:37:01,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:37:01,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461774423] [2022-11-20 09:37:01,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461774423] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:37:01,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:37:01,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:37:01,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462535461] [2022-11-20 09:37:01,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:37:01,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:37:01,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:37:01,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:37:01,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:37:01,293 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 149 [2022-11-20 09:37:01,294 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 205 transitions, 888 flow. Second operand has 6 states, 6 states have (on average 97.5) internal successors, (585), 6 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:01,294 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:37:01,294 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 149 [2022-11-20 09:37:01,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:37:01,962 INFO L130 PetriNetUnfolder]: 580/1918 cut-off events. [2022-11-20 09:37:01,962 INFO L131 PetriNetUnfolder]: For 1203/1209 co-relation queries the response was YES. [2022-11-20 09:37:01,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4717 conditions, 1918 events. 580/1918 cut-off events. For 1203/1209 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 12542 event pairs, 124 based on Foata normal form. 0/1817 useless extension candidates. Maximal degree in co-relation 4657. Up to 873 conditions per place. [2022-11-20 09:37:01,975 INFO L137 encePairwiseOnDemand]: 135/149 looper letters, 165 selfloop transitions, 75 changer transitions 4/332 dead transitions. [2022-11-20 09:37:01,976 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 332 transitions, 1940 flow [2022-11-20 09:37:01,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:37:01,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:37:01,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 702 transitions. [2022-11-20 09:37:01,978 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.785234899328859 [2022-11-20 09:37:01,978 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 702 transitions. [2022-11-20 09:37:01,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 702 transitions. [2022-11-20 09:37:01,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:37:01,979 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 702 transitions. [2022-11-20 09:37:01,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:01,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:01,983 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:01,984 INFO L175 Difference]: Start difference. First operand has 149 places, 205 transitions, 888 flow. Second operand 6 states and 702 transitions. [2022-11-20 09:37:01,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 332 transitions, 1940 flow [2022-11-20 09:37:01,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 332 transitions, 1922 flow, removed 9 selfloop flow, removed 0 redundant places. [2022-11-20 09:37:01,999 INFO L231 Difference]: Finished difference. Result has 159 places, 275 transitions, 1646 flow [2022-11-20 09:37:01,999 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=870, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1646, PETRI_PLACES=159, PETRI_TRANSITIONS=275} [2022-11-20 09:37:02,000 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 26 predicate places. [2022-11-20 09:37:02,000 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 275 transitions, 1646 flow [2022-11-20 09:37:02,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 97.5) internal successors, (585), 6 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:02,001 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:37:02,001 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:37:02,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 09:37:02,002 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-20 09:37:02,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:37:02,002 INFO L85 PathProgramCache]: Analyzing trace with hash -2051602757, now seen corresponding path program 1 times [2022-11-20 09:37:02,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:37:02,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470971293] [2022-11-20 09:37:02,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:37:02,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:37:02,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:37:02,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:37:02,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:37:02,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470971293] [2022-11-20 09:37:02,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470971293] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:37:02,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:37:02,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 09:37:02,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168745596] [2022-11-20 09:37:02,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:37:02,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:37:02,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:37:02,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:37:02,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:37:02,225 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 149 [2022-11-20 09:37:02,226 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 275 transitions, 1646 flow. Second operand has 6 states, 6 states have (on average 117.83333333333333) internal successors, (707), 6 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:02,226 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:37:02,226 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 149 [2022-11-20 09:37:02,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:37:02,395 INFO L130 PetriNetUnfolder]: 90/575 cut-off events. [2022-11-20 09:37:02,396 INFO L131 PetriNetUnfolder]: For 495/540 co-relation queries the response was YES. [2022-11-20 09:37:02,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1376 conditions, 575 events. 90/575 cut-off events. For 495/540 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2458 event pairs, 3 based on Foata normal form. 8/572 useless extension candidates. Maximal degree in co-relation 1302. Up to 112 conditions per place. [2022-11-20 09:37:02,400 INFO L137 encePairwiseOnDemand]: 143/149 looper letters, 17 selfloop transitions, 6 changer transitions 1/189 dead transitions. [2022-11-20 09:37:02,400 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 189 transitions, 964 flow [2022-11-20 09:37:02,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:37:02,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 09:37:02,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 600 transitions. [2022-11-20 09:37:02,402 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8053691275167785 [2022-11-20 09:37:02,402 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 600 transitions. [2022-11-20 09:37:02,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 600 transitions. [2022-11-20 09:37:02,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:37:02,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 600 transitions. [2022-11-20 09:37:02,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 120.0) internal successors, (600), 5 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:02,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 149.0) internal successors, (894), 6 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:02,407 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 149.0) internal successors, (894), 6 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:02,407 INFO L175 Difference]: Start difference. First operand has 159 places, 275 transitions, 1646 flow. Second operand 5 states and 600 transitions. [2022-11-20 09:37:02,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 189 transitions, 964 flow [2022-11-20 09:37:02,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 189 transitions, 836 flow, removed 55 selfloop flow, removed 7 redundant places. [2022-11-20 09:37:02,416 INFO L231 Difference]: Finished difference. Result has 155 places, 188 transitions, 800 flow [2022-11-20 09:37:02,417 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=790, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=800, PETRI_PLACES=155, PETRI_TRANSITIONS=188} [2022-11-20 09:37:02,418 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 22 predicate places. [2022-11-20 09:37:02,418 INFO L495 AbstractCegarLoop]: Abstraction has has 155 places, 188 transitions, 800 flow [2022-11-20 09:37:02,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.83333333333333) internal successors, (707), 6 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:02,419 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:37:02,419 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] [2022-11-20 09:37:02,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 09:37:02,419 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-20 09:37:02,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:37:02,420 INFO L85 PathProgramCache]: Analyzing trace with hash -120372656, now seen corresponding path program 1 times [2022-11-20 09:37:02,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:37:02,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660939018] [2022-11-20 09:37:02,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:37:02,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:37:02,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:37:02,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:37:02,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:37:02,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660939018] [2022-11-20 09:37:02,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660939018] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:37:02,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:37:02,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:37:02,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819576547] [2022-11-20 09:37:02,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:37:02,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:37:02,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:37:02,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:37:02,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:37:02,905 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 149 [2022-11-20 09:37:02,907 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 188 transitions, 800 flow. Second operand has 6 states, 6 states have (on average 98.5) internal successors, (591), 6 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:02,907 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:37:02,907 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 149 [2022-11-20 09:37:02,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:37:03,221 INFO L130 PetriNetUnfolder]: 304/965 cut-off events. [2022-11-20 09:37:03,222 INFO L131 PetriNetUnfolder]: For 809/809 co-relation queries the response was YES. [2022-11-20 09:37:03,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2791 conditions, 965 events. 304/965 cut-off events. For 809/809 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4321 event pairs, 110 based on Foata normal form. 0/944 useless extension candidates. Maximal degree in co-relation 2730. Up to 651 conditions per place. [2022-11-20 09:37:03,228 INFO L137 encePairwiseOnDemand]: 138/149 looper letters, 99 selfloop transitions, 26 changer transitions 15/224 dead transitions. [2022-11-20 09:37:03,228 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 224 transitions, 1286 flow [2022-11-20 09:37:03,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:37:03,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:37:03,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 635 transitions. [2022-11-20 09:37:03,231 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7102908277404921 [2022-11-20 09:37:03,231 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 635 transitions. [2022-11-20 09:37:03,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 635 transitions. [2022-11-20 09:37:03,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:37:03,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 635 transitions. [2022-11-20 09:37:03,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 105.83333333333333) internal successors, (635), 6 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:03,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:03,235 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 149.0) internal successors, (1043), 7 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:03,236 INFO L175 Difference]: Start difference. First operand has 155 places, 188 transitions, 800 flow. Second operand 6 states and 635 transitions. [2022-11-20 09:37:03,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 224 transitions, 1286 flow [2022-11-20 09:37:03,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 224 transitions, 1273 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 09:37:03,246 INFO L231 Difference]: Finished difference. Result has 160 places, 205 transitions, 1005 flow [2022-11-20 09:37:03,247 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=787, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1005, PETRI_PLACES=160, PETRI_TRANSITIONS=205} [2022-11-20 09:37:03,249 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 27 predicate places. [2022-11-20 09:37:03,250 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 205 transitions, 1005 flow [2022-11-20 09:37:03,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 98.5) internal successors, (591), 6 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:03,250 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:37:03,251 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:37:03,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 09:37:03,251 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-20 09:37:03,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:37:03,252 INFO L85 PathProgramCache]: Analyzing trace with hash 879857371, now seen corresponding path program 1 times [2022-11-20 09:37:03,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:37:03,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540616207] [2022-11-20 09:37:03,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:37:03,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:37:03,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:37:03,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:37:03,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:37:03,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540616207] [2022-11-20 09:37:03,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540616207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:37:03,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:37:03,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 09:37:03,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98909776] [2022-11-20 09:37:03,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:37:03,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 09:37:03,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:37:03,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 09:37:03,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-20 09:37:03,893 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 149 [2022-11-20 09:37:03,895 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 205 transitions, 1005 flow. Second operand has 12 states, 12 states have (on average 79.83333333333333) internal successors, (958), 12 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:03,895 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:37:03,895 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 149 [2022-11-20 09:37:03,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:37:04,473 INFO L130 PetriNetUnfolder]: 324/1036 cut-off events. [2022-11-20 09:37:04,474 INFO L131 PetriNetUnfolder]: For 1454/1463 co-relation queries the response was YES. [2022-11-20 09:37:04,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3207 conditions, 1036 events. 324/1036 cut-off events. For 1454/1463 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 4575 event pairs, 35 based on Foata normal form. 11/1040 useless extension candidates. Maximal degree in co-relation 3133. Up to 533 conditions per place. [2022-11-20 09:37:04,481 INFO L137 encePairwiseOnDemand]: 138/149 looper letters, 156 selfloop transitions, 30 changer transitions 10/267 dead transitions. [2022-11-20 09:37:04,482 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 267 transitions, 1785 flow [2022-11-20 09:37:04,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 09:37:04,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 09:37:04,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 953 transitions. [2022-11-20 09:37:04,486 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5814521049420378 [2022-11-20 09:37:04,486 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 953 transitions. [2022-11-20 09:37:04,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 953 transitions. [2022-11-20 09:37:04,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:37:04,487 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 953 transitions. [2022-11-20 09:37:04,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 86.63636363636364) internal successors, (953), 11 states have internal predecessors, (953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:04,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:04,494 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:04,495 INFO L175 Difference]: Start difference. First operand has 160 places, 205 transitions, 1005 flow. Second operand 11 states and 953 transitions. [2022-11-20 09:37:04,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 267 transitions, 1785 flow [2022-11-20 09:37:04,506 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 267 transitions, 1727 flow, removed 25 selfloop flow, removed 1 redundant places. [2022-11-20 09:37:04,512 INFO L231 Difference]: Finished difference. Result has 168 places, 204 transitions, 1005 flow [2022-11-20 09:37:04,513 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=945, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1005, PETRI_PLACES=168, PETRI_TRANSITIONS=204} [2022-11-20 09:37:04,513 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 35 predicate places. [2022-11-20 09:37:04,514 INFO L495 AbstractCegarLoop]: Abstraction has has 168 places, 204 transitions, 1005 flow [2022-11-20 09:37:04,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 79.83333333333333) internal successors, (958), 12 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:04,515 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:37:04,515 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:37:04,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 09:37:04,515 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-20 09:37:04,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:37:04,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1135191630, now seen corresponding path program 1 times [2022-11-20 09:37:04,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:37:04,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939154451] [2022-11-20 09:37:04,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:37:04,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:37:04,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:37:05,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:37:05,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:37:05,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939154451] [2022-11-20 09:37:05,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939154451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:37:05,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:37:05,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 09:37:05,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795864636] [2022-11-20 09:37:05,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:37:05,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 09:37:05,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:37:05,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 09:37:05,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-20 09:37:05,428 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-20 09:37:05,430 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 204 transitions, 1005 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:05,430 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:37:05,430 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-20 09:37:05,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:37:06,648 INFO L130 PetriNetUnfolder]: 361/1211 cut-off events. [2022-11-20 09:37:06,648 INFO L131 PetriNetUnfolder]: For 1499/1503 co-relation queries the response was YES. [2022-11-20 09:37:06,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3807 conditions, 1211 events. 361/1211 cut-off events. For 1499/1503 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 5926 event pairs, 56 based on Foata normal form. 19/1226 useless extension candidates. Maximal degree in co-relation 3730. Up to 476 conditions per place. [2022-11-20 09:37:06,658 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 163 selfloop transitions, 52 changer transitions 37/326 dead transitions. [2022-11-20 09:37:06,658 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 326 transitions, 1989 flow [2022-11-20 09:37:06,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 09:37:06,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-20 09:37:06,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1146 transitions. [2022-11-20 09:37:06,662 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6409395973154363 [2022-11-20 09:37:06,662 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1146 transitions. [2022-11-20 09:37:06,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1146 transitions. [2022-11-20 09:37:06,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:37:06,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1146 transitions. [2022-11-20 09:37:06,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 95.5) internal successors, (1146), 12 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:06,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:06,670 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:06,670 INFO L175 Difference]: Start difference. First operand has 168 places, 204 transitions, 1005 flow. Second operand 12 states and 1146 transitions. [2022-11-20 09:37:06,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 326 transitions, 1989 flow [2022-11-20 09:37:06,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 326 transitions, 1903 flow, removed 0 selfloop flow, removed 10 redundant places. [2022-11-20 09:37:06,688 INFO L231 Difference]: Finished difference. Result has 176 places, 212 transitions, 1256 flow [2022-11-20 09:37:06,688 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=945, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1256, PETRI_PLACES=176, PETRI_TRANSITIONS=212} [2022-11-20 09:37:06,689 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 43 predicate places. [2022-11-20 09:37:06,689 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 212 transitions, 1256 flow [2022-11-20 09:37:06,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:06,690 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:37:06,690 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:37:06,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 09:37:06,691 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-20 09:37:06,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:37:06,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1485590250, now seen corresponding path program 2 times [2022-11-20 09:37:06,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:37:06,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587264925] [2022-11-20 09:37:06,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:37:06,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:37:06,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:37:07,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:37:07,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:37:07,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587264925] [2022-11-20 09:37:07,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587264925] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:37:07,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:37:07,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 09:37:07,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013060398] [2022-11-20 09:37:07,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:37:07,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 09:37:07,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:37:07,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 09:37:07,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-20 09:37:07,240 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-20 09:37:07,241 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 212 transitions, 1256 flow. Second operand has 12 states, 12 states have (on average 81.75) internal successors, (981), 12 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:07,241 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:37:07,241 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-20 09:37:07,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:37:08,199 INFO L130 PetriNetUnfolder]: 468/1405 cut-off events. [2022-11-20 09:37:08,199 INFO L131 PetriNetUnfolder]: For 3442/3448 co-relation queries the response was YES. [2022-11-20 09:37:08,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5152 conditions, 1405 events. 468/1405 cut-off events. For 3442/3448 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 7045 event pairs, 24 based on Foata normal form. 32/1434 useless extension candidates. Maximal degree in co-relation 5068. Up to 436 conditions per place. [2022-11-20 09:37:08,211 INFO L137 encePairwiseOnDemand]: 138/149 looper letters, 241 selfloop transitions, 45 changer transitions 39/399 dead transitions. [2022-11-20 09:37:08,212 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 399 transitions, 2936 flow [2022-11-20 09:37:08,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 09:37:08,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-20 09:37:08,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1127 transitions. [2022-11-20 09:37:08,215 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6303131991051454 [2022-11-20 09:37:08,215 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1127 transitions. [2022-11-20 09:37:08,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1127 transitions. [2022-11-20 09:37:08,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:37:08,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1127 transitions. [2022-11-20 09:37:08,219 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 93.91666666666667) internal successors, (1127), 12 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:08,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:08,223 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:08,223 INFO L175 Difference]: Start difference. First operand has 176 places, 212 transitions, 1256 flow. Second operand 12 states and 1127 transitions. [2022-11-20 09:37:08,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 399 transitions, 2936 flow [2022-11-20 09:37:08,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 399 transitions, 2927 flow, removed 1 selfloop flow, removed 5 redundant places. [2022-11-20 09:37:08,259 INFO L231 Difference]: Finished difference. Result has 186 places, 237 transitions, 1668 flow [2022-11-20 09:37:08,259 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=1247, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1668, PETRI_PLACES=186, PETRI_TRANSITIONS=237} [2022-11-20 09:37:08,260 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 53 predicate places. [2022-11-20 09:37:08,260 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 237 transitions, 1668 flow [2022-11-20 09:37:08,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 81.75) internal successors, (981), 12 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:08,261 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:37:08,261 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:37:08,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 09:37:08,261 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-20 09:37:08,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:37:08,262 INFO L85 PathProgramCache]: Analyzing trace with hash 844621264, now seen corresponding path program 3 times [2022-11-20 09:37:08,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:37:08,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098377879] [2022-11-20 09:37:08,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:37:08,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:37:08,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:37:08,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:37:08,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:37:08,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098377879] [2022-11-20 09:37:08,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098377879] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:37:08,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:37:08,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 09:37:08,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538954762] [2022-11-20 09:37:08,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:37:08,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 09:37:08,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:37:08,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 09:37:08,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-20 09:37:08,932 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-20 09:37:08,933 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 237 transitions, 1668 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:08,933 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:37:08,933 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-20 09:37:08,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:37:10,338 INFO L130 PetriNetUnfolder]: 488/1574 cut-off events. [2022-11-20 09:37:10,338 INFO L131 PetriNetUnfolder]: For 5941/5945 co-relation queries the response was YES. [2022-11-20 09:37:10,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6459 conditions, 1574 events. 488/1574 cut-off events. For 5941/5945 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 8591 event pairs, 58 based on Foata normal form. 30/1600 useless extension candidates. Maximal degree in co-relation 6370. Up to 636 conditions per place. [2022-11-20 09:37:10,353 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 208 selfloop transitions, 58 changer transitions 51/391 dead transitions. [2022-11-20 09:37:10,353 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 391 transitions, 2971 flow [2022-11-20 09:37:10,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 09:37:10,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-20 09:37:10,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1165 transitions. [2022-11-20 09:37:10,357 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.651565995525727 [2022-11-20 09:37:10,357 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1165 transitions. [2022-11-20 09:37:10,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1165 transitions. [2022-11-20 09:37:10,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:37:10,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1165 transitions. [2022-11-20 09:37:10,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 97.08333333333333) internal successors, (1165), 12 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:10,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:10,364 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:10,364 INFO L175 Difference]: Start difference. First operand has 186 places, 237 transitions, 1668 flow. Second operand 12 states and 1165 transitions. [2022-11-20 09:37:10,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 391 transitions, 2971 flow [2022-11-20 09:37:10,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 391 transitions, 2959 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 09:37:10,419 INFO L231 Difference]: Finished difference. Result has 196 places, 246 transitions, 1975 flow [2022-11-20 09:37:10,420 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=1659, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1975, PETRI_PLACES=196, PETRI_TRANSITIONS=246} [2022-11-20 09:37:10,421 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 63 predicate places. [2022-11-20 09:37:10,421 INFO L495 AbstractCegarLoop]: Abstraction has has 196 places, 246 transitions, 1975 flow [2022-11-20 09:37:10,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:10,425 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:37:10,425 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:37:10,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 09:37:10,425 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-20 09:37:10,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:37:10,426 INFO L85 PathProgramCache]: Analyzing trace with hash 208957478, now seen corresponding path program 4 times [2022-11-20 09:37:10,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:37:10,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472512462] [2022-11-20 09:37:10,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:37:10,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:37:10,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:37:11,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:37:11,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:37:11,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472512462] [2022-11-20 09:37:11,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472512462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:37:11,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:37:11,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 09:37:11,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936335141] [2022-11-20 09:37:11,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:37:11,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 09:37:11,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:37:11,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 09:37:11,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-20 09:37:11,120 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-20 09:37:11,121 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 246 transitions, 1975 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:11,122 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:37:11,122 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-20 09:37:11,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:37:12,381 INFO L130 PetriNetUnfolder]: 461/1535 cut-off events. [2022-11-20 09:37:12,382 INFO L131 PetriNetUnfolder]: For 7242/7246 co-relation queries the response was YES. [2022-11-20 09:37:12,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6747 conditions, 1535 events. 461/1535 cut-off events. For 7242/7246 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 8457 event pairs, 64 based on Foata normal form. 19/1549 useless extension candidates. Maximal degree in co-relation 6653. Up to 613 conditions per place. [2022-11-20 09:37:12,403 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 170 selfloop transitions, 65 changer transitions 41/350 dead transitions. [2022-11-20 09:37:12,403 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 350 transitions, 2915 flow [2022-11-20 09:37:12,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 09:37:12,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 09:37:12,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1055 transitions. [2022-11-20 09:37:12,406 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6436851738865161 [2022-11-20 09:37:12,407 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1055 transitions. [2022-11-20 09:37:12,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1055 transitions. [2022-11-20 09:37:12,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:37:12,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1055 transitions. [2022-11-20 09:37:12,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 95.9090909090909) internal successors, (1055), 11 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:12,413 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:12,414 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:12,415 INFO L175 Difference]: Start difference. First operand has 196 places, 246 transitions, 1975 flow. Second operand 11 states and 1055 transitions. [2022-11-20 09:37:12,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 350 transitions, 2915 flow [2022-11-20 09:37:12,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 350 transitions, 2859 flow, removed 5 selfloop flow, removed 6 redundant places. [2022-11-20 09:37:12,484 INFO L231 Difference]: Finished difference. Result has 203 places, 246 transitions, 2074 flow [2022-11-20 09:37:12,485 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=1923, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2074, PETRI_PLACES=203, PETRI_TRANSITIONS=246} [2022-11-20 09:37:12,485 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 70 predicate places. [2022-11-20 09:37:12,486 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 246 transitions, 2074 flow [2022-11-20 09:37:12,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:12,486 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:37:12,487 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:37:12,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 09:37:12,487 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-20 09:37:12,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:37:12,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1677989122, now seen corresponding path program 5 times [2022-11-20 09:37:12,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:37:12,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146632579] [2022-11-20 09:37:12,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:37:12,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:37:12,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:37:13,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:37:13,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:37:13,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146632579] [2022-11-20 09:37:13,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146632579] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:37:13,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:37:13,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 09:37:13,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956919940] [2022-11-20 09:37:13,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:37:13,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 09:37:13,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:37:13,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 09:37:13,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-20 09:37:13,034 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-20 09:37:13,035 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 246 transitions, 2074 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:13,036 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:37:13,036 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-20 09:37:13,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:37:14,421 INFO L130 PetriNetUnfolder]: 656/2085 cut-off events. [2022-11-20 09:37:14,421 INFO L131 PetriNetUnfolder]: For 14729/14734 co-relation queries the response was YES. [2022-11-20 09:37:14,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9509 conditions, 2085 events. 656/2085 cut-off events. For 14729/14734 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 12694 event pairs, 90 based on Foata normal form. 31/2104 useless extension candidates. Maximal degree in co-relation 9412. Up to 629 conditions per place. [2022-11-20 09:37:14,446 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 281 selfloop transitions, 77 changer transitions 56/488 dead transitions. [2022-11-20 09:37:14,446 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 488 transitions, 4504 flow [2022-11-20 09:37:14,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 09:37:14,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-20 09:37:14,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1170 transitions. [2022-11-20 09:37:14,452 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6543624161073825 [2022-11-20 09:37:14,452 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1170 transitions. [2022-11-20 09:37:14,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1170 transitions. [2022-11-20 09:37:14,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:37:14,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1170 transitions. [2022-11-20 09:37:14,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 97.5) internal successors, (1170), 12 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:14,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:14,462 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:14,462 INFO L175 Difference]: Start difference. First operand has 203 places, 246 transitions, 2074 flow. Second operand 12 states and 1170 transitions. [2022-11-20 09:37:14,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 488 transitions, 4504 flow [2022-11-20 09:37:14,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 488 transitions, 4385 flow, removed 4 selfloop flow, removed 9 redundant places. [2022-11-20 09:37:14,556 INFO L231 Difference]: Finished difference. Result has 209 places, 284 transitions, 2800 flow [2022-11-20 09:37:14,557 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=1991, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2800, PETRI_PLACES=209, PETRI_TRANSITIONS=284} [2022-11-20 09:37:14,559 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 76 predicate places. [2022-11-20 09:37:14,560 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 284 transitions, 2800 flow [2022-11-20 09:37:14,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:14,560 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:37:14,561 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:37:14,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 09:37:14,561 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-20 09:37:14,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:37:14,562 INFO L85 PathProgramCache]: Analyzing trace with hash 2114137512, now seen corresponding path program 6 times [2022-11-20 09:37:14,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:37:14,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863062991] [2022-11-20 09:37:14,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:37:14,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:37:14,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:37:15,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:37:15,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:37:15,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863062991] [2022-11-20 09:37:15,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863062991] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:37:15,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:37:15,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 09:37:15,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009253275] [2022-11-20 09:37:15,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:37:15,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 09:37:15,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:37:15,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 09:37:15,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-20 09:37:15,126 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-20 09:37:15,128 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 284 transitions, 2800 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:15,128 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:37:15,128 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-20 09:37:15,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:37:16,864 INFO L130 PetriNetUnfolder]: 676/2192 cut-off events. [2022-11-20 09:37:16,864 INFO L131 PetriNetUnfolder]: For 19886/19891 co-relation queries the response was YES. [2022-11-20 09:37:16,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10407 conditions, 2192 events. 676/2192 cut-off events. For 19886/19891 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 13814 event pairs, 97 based on Foata normal form. 31/2215 useless extension candidates. Maximal degree in co-relation 10305. Up to 931 conditions per place. [2022-11-20 09:37:16,891 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 225 selfloop transitions, 84 changer transitions 53/436 dead transitions. [2022-11-20 09:37:16,891 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 436 transitions, 4314 flow [2022-11-20 09:37:16,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 09:37:16,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 09:37:16,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1240 transitions. [2022-11-20 09:37:16,902 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6401652039235932 [2022-11-20 09:37:16,903 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1240 transitions. [2022-11-20 09:37:16,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1240 transitions. [2022-11-20 09:37:16,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:37:16,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1240 transitions. [2022-11-20 09:37:16,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 95.38461538461539) internal successors, (1240), 13 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:16,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 149.0) internal successors, (2086), 14 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:16,953 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 149.0) internal successors, (2086), 14 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:16,953 INFO L175 Difference]: Start difference. First operand has 209 places, 284 transitions, 2800 flow. Second operand 13 states and 1240 transitions. [2022-11-20 09:37:16,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 436 transitions, 4314 flow [2022-11-20 09:37:17,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 436 transitions, 4221 flow, removed 39 selfloop flow, removed 5 redundant places. [2022-11-20 09:37:17,089 INFO L231 Difference]: Finished difference. Result has 223 places, 294 transitions, 3193 flow [2022-11-20 09:37:17,090 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=2713, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3193, PETRI_PLACES=223, PETRI_TRANSITIONS=294} [2022-11-20 09:37:17,090 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 90 predicate places. [2022-11-20 09:37:17,090 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 294 transitions, 3193 flow [2022-11-20 09:37:17,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:17,091 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:37:17,092 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:37:17,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 09:37:17,092 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-20 09:37:17,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:37:17,093 INFO L85 PathProgramCache]: Analyzing trace with hash 818916668, now seen corresponding path program 7 times [2022-11-20 09:37:17,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:37:17,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000672053] [2022-11-20 09:37:17,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:37:17,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:37:17,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:37:17,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:37:17,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:37:17,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000672053] [2022-11-20 09:37:17,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000672053] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:37:17,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:37:17,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 09:37:17,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560232573] [2022-11-20 09:37:17,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:37:17,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 09:37:17,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:37:17,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 09:37:17,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-20 09:37:17,658 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-20 09:37:17,659 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 294 transitions, 3193 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:17,659 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:37:17,659 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-20 09:37:17,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:37:19,149 INFO L130 PetriNetUnfolder]: 604/2064 cut-off events. [2022-11-20 09:37:19,150 INFO L131 PetriNetUnfolder]: For 21936/21941 co-relation queries the response was YES. [2022-11-20 09:37:19,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10139 conditions, 2064 events. 604/2064 cut-off events. For 21936/21941 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 13035 event pairs, 89 based on Foata normal form. 31/2083 useless extension candidates. Maximal degree in co-relation 10031. Up to 820 conditions per place. [2022-11-20 09:37:19,170 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 260 selfloop transitions, 81 changer transitions 60/475 dead transitions. [2022-11-20 09:37:19,171 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 475 transitions, 5016 flow [2022-11-20 09:37:19,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 09:37:19,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-20 09:37:19,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1167 transitions. [2022-11-20 09:37:19,174 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6526845637583892 [2022-11-20 09:37:19,174 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1167 transitions. [2022-11-20 09:37:19,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1167 transitions. [2022-11-20 09:37:19,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:37:19,175 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1167 transitions. [2022-11-20 09:37:19,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 97.25) internal successors, (1167), 12 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:19,192 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:19,192 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:19,193 INFO L175 Difference]: Start difference. First operand has 223 places, 294 transitions, 3193 flow. Second operand 12 states and 1167 transitions. [2022-11-20 09:37:19,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 475 transitions, 5016 flow [2022-11-20 09:37:19,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 475 transitions, 4821 flow, removed 18 selfloop flow, removed 8 redundant places. [2022-11-20 09:37:19,421 INFO L231 Difference]: Finished difference. Result has 230 places, 313 transitions, 3567 flow [2022-11-20 09:37:19,421 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=3013, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3567, PETRI_PLACES=230, PETRI_TRANSITIONS=313} [2022-11-20 09:37:19,422 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 97 predicate places. [2022-11-20 09:37:19,423 INFO L495 AbstractCegarLoop]: Abstraction has has 230 places, 313 transitions, 3567 flow [2022-11-20 09:37:19,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:19,423 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:37:19,423 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:37:19,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 09:37:19,424 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-20 09:37:19,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:37:19,424 INFO L85 PathProgramCache]: Analyzing trace with hash 284753226, now seen corresponding path program 8 times [2022-11-20 09:37:19,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:37:19,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917310758] [2022-11-20 09:37:19,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:37:19,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:37:19,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:37:19,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:37:19,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:37:19,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917310758] [2022-11-20 09:37:19,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917310758] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:37:19,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:37:19,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 09:37:19,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362155379] [2022-11-20 09:37:19,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:37:19,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 09:37:19,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:37:19,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 09:37:19,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-20 09:37:19,969 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-20 09:37:19,970 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 313 transitions, 3567 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:19,970 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:37:19,970 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-20 09:37:19,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:37:21,619 INFO L130 PetriNetUnfolder]: 745/2520 cut-off events. [2022-11-20 09:37:21,620 INFO L131 PetriNetUnfolder]: For 34858/34865 co-relation queries the response was YES. [2022-11-20 09:37:21,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12566 conditions, 2520 events. 745/2520 cut-off events. For 34858/34865 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 17041 event pairs, 102 based on Foata normal form. 33/2538 useless extension candidates. Maximal degree in co-relation 12453. Up to 873 conditions per place. [2022-11-20 09:37:21,650 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 287 selfloop transitions, 96 changer transitions 53/510 dead transitions. [2022-11-20 09:37:21,650 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 510 transitions, 5799 flow [2022-11-20 09:37:21,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 09:37:21,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-20 09:37:21,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1162 transitions. [2022-11-20 09:37:21,654 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6498881431767338 [2022-11-20 09:37:21,654 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1162 transitions. [2022-11-20 09:37:21,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1162 transitions. [2022-11-20 09:37:21,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:37:21,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1162 transitions. [2022-11-20 09:37:21,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 96.83333333333333) internal successors, (1162), 12 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:21,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:21,661 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:21,661 INFO L175 Difference]: Start difference. First operand has 230 places, 313 transitions, 3567 flow. Second operand 12 states and 1162 transitions. [2022-11-20 09:37:21,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 510 transitions, 5799 flow [2022-11-20 09:37:21,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 510 transitions, 5659 flow, removed 46 selfloop flow, removed 6 redundant places. [2022-11-20 09:37:21,833 INFO L231 Difference]: Finished difference. Result has 241 places, 339 transitions, 4219 flow [2022-11-20 09:37:21,833 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=3440, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4219, PETRI_PLACES=241, PETRI_TRANSITIONS=339} [2022-11-20 09:37:21,834 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 108 predicate places. [2022-11-20 09:37:21,834 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 339 transitions, 4219 flow [2022-11-20 09:37:21,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:21,835 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:37:21,835 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:37:21,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 09:37:21,835 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-20 09:37:21,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:37:21,835 INFO L85 PathProgramCache]: Analyzing trace with hash -778330110, now seen corresponding path program 9 times [2022-11-20 09:37:21,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:37:21,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786108482] [2022-11-20 09:37:21,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:37:21,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:37:21,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:37:22,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:37:22,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:37:22,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786108482] [2022-11-20 09:37:22,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786108482] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:37:22,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:37:22,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 09:37:22,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535168855] [2022-11-20 09:37:22,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:37:22,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 09:37:22,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:37:22,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 09:37:22,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-20 09:37:22,352 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-20 09:37:22,354 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 339 transitions, 4219 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:22,354 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:37:22,354 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-20 09:37:22,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:37:24,185 INFO L130 PetriNetUnfolder]: 810/2799 cut-off events. [2022-11-20 09:37:24,185 INFO L131 PetriNetUnfolder]: For 46589/46597 co-relation queries the response was YES. [2022-11-20 09:37:24,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14473 conditions, 2799 events. 810/2799 cut-off events. For 46589/46597 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 19675 event pairs, 134 based on Foata normal form. 34/2816 useless extension candidates. Maximal degree in co-relation 14355. Up to 646 conditions per place. [2022-11-20 09:37:24,210 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 309 selfloop transitions, 100 changer transitions 54/537 dead transitions. [2022-11-20 09:37:24,211 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 537 transitions, 6445 flow [2022-11-20 09:37:24,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 09:37:24,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-20 09:37:24,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1162 transitions. [2022-11-20 09:37:24,213 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6498881431767338 [2022-11-20 09:37:24,214 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1162 transitions. [2022-11-20 09:37:24,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1162 transitions. [2022-11-20 09:37:24,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:37:24,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1162 transitions. [2022-11-20 09:37:24,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 96.83333333333333) internal successors, (1162), 12 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:24,220 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:24,221 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:24,222 INFO L175 Difference]: Start difference. First operand has 241 places, 339 transitions, 4219 flow. Second operand 12 states and 1162 transitions. [2022-11-20 09:37:24,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 537 transitions, 6445 flow [2022-11-20 09:37:24,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 537 transitions, 6255 flow, removed 61 selfloop flow, removed 5 redundant places. [2022-11-20 09:37:24,402 INFO L231 Difference]: Finished difference. Result has 254 places, 362 transitions, 4839 flow [2022-11-20 09:37:24,403 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=4037, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4839, PETRI_PLACES=254, PETRI_TRANSITIONS=362} [2022-11-20 09:37:24,403 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 121 predicate places. [2022-11-20 09:37:24,404 INFO L495 AbstractCegarLoop]: Abstraction has has 254 places, 362 transitions, 4839 flow [2022-11-20 09:37:24,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:24,404 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:37:24,404 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:37:24,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 09:37:24,407 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-20 09:37:24,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:37:24,408 INFO L85 PathProgramCache]: Analyzing trace with hash 538657098, now seen corresponding path program 10 times [2022-11-20 09:37:24,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:37:24,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213244049] [2022-11-20 09:37:24,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:37:24,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:37:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:37:24,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:37:24,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:37:24,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213244049] [2022-11-20 09:37:24,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213244049] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:37:24,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:37:24,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 09:37:24,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740158996] [2022-11-20 09:37:24,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:37:24,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 09:37:24,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:37:24,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 09:37:24,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-20 09:37:24,958 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-20 09:37:24,959 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 362 transitions, 4839 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:24,960 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:37:24,960 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-20 09:37:24,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:37:26,643 INFO L130 PetriNetUnfolder]: 803/2824 cut-off events. [2022-11-20 09:37:26,643 INFO L131 PetriNetUnfolder]: For 56733/56741 co-relation queries the response was YES. [2022-11-20 09:37:26,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15038 conditions, 2824 events. 803/2824 cut-off events. For 56733/56741 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 20215 event pairs, 143 based on Foata normal form. 23/2829 useless extension candidates. Maximal degree in co-relation 14912. Up to 1256 conditions per place. [2022-11-20 09:37:26,668 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 248 selfloop transitions, 97 changer transitions 47/466 dead transitions. [2022-11-20 09:37:26,668 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 466 transitions, 6033 flow [2022-11-20 09:37:26,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 09:37:26,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-20 09:37:26,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1132 transitions. [2022-11-20 09:37:26,671 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6331096196868009 [2022-11-20 09:37:26,671 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1132 transitions. [2022-11-20 09:37:26,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1132 transitions. [2022-11-20 09:37:26,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:37:26,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1132 transitions. [2022-11-20 09:37:26,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 94.33333333333333) internal successors, (1132), 12 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:26,677 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:26,678 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:26,678 INFO L175 Difference]: Start difference. First operand has 254 places, 362 transitions, 4839 flow. Second operand 12 states and 1132 transitions. [2022-11-20 09:37:26,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 466 transitions, 6033 flow [2022-11-20 09:37:27,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 466 transitions, 5836 flow, removed 96 selfloop flow, removed 3 redundant places. [2022-11-20 09:37:27,025 INFO L231 Difference]: Finished difference. Result has 266 places, 363 transitions, 4886 flow [2022-11-20 09:37:27,026 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=4646, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4886, PETRI_PLACES=266, PETRI_TRANSITIONS=363} [2022-11-20 09:37:27,027 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 133 predicate places. [2022-11-20 09:37:27,083 INFO L495 AbstractCegarLoop]: Abstraction has has 266 places, 363 transitions, 4886 flow [2022-11-20 09:37:27,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:27,083 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:37:27,084 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:37:27,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 09:37:27,084 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-20 09:37:27,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:37:27,084 INFO L85 PathProgramCache]: Analyzing trace with hash 592689648, now seen corresponding path program 11 times [2022-11-20 09:37:27,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:37:27,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237424613] [2022-11-20 09:37:27,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:37:27,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:37:27,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:37:27,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:37:27,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:37:27,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237424613] [2022-11-20 09:37:27,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237424613] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:37:27,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:37:27,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 09:37:27,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840579082] [2022-11-20 09:37:27,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:37:27,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 09:37:27,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:37:27,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 09:37:27,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-20 09:37:27,586 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-20 09:37:27,587 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 363 transitions, 4886 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:27,587 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:37:27,587 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-20 09:37:27,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:37:29,303 INFO L130 PetriNetUnfolder]: 831/2932 cut-off events. [2022-11-20 09:37:29,303 INFO L131 PetriNetUnfolder]: For 64965/64973 co-relation queries the response was YES. [2022-11-20 09:37:29,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15885 conditions, 2932 events. 831/2932 cut-off events. For 64965/64973 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 21233 event pairs, 159 based on Foata normal form. 34/2945 useless extension candidates. Maximal degree in co-relation 15754. Up to 1254 conditions per place. [2022-11-20 09:37:29,327 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 274 selfloop transitions, 99 changer transitions 57/504 dead transitions. [2022-11-20 09:37:29,327 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 504 transitions, 6607 flow [2022-11-20 09:37:29,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 09:37:29,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 09:37:29,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1222 transitions. [2022-11-20 09:37:29,330 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6308724832214765 [2022-11-20 09:37:29,330 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1222 transitions. [2022-11-20 09:37:29,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1222 transitions. [2022-11-20 09:37:29,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:37:29,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1222 transitions. [2022-11-20 09:37:29,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 94.0) internal successors, (1222), 13 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:29,336 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 149.0) internal successors, (2086), 14 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:29,337 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 149.0) internal successors, (2086), 14 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:29,337 INFO L175 Difference]: Start difference. First operand has 266 places, 363 transitions, 4886 flow. Second operand 13 states and 1222 transitions. [2022-11-20 09:37:29,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 504 transitions, 6607 flow [2022-11-20 09:37:29,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 504 transitions, 6373 flow, removed 19 selfloop flow, removed 8 redundant places. [2022-11-20 09:37:29,707 INFO L231 Difference]: Finished difference. Result has 277 places, 375 transitions, 5316 flow [2022-11-20 09:37:29,708 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=4666, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=363, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=5316, PETRI_PLACES=277, PETRI_TRANSITIONS=375} [2022-11-20 09:37:29,708 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 144 predicate places. [2022-11-20 09:37:29,708 INFO L495 AbstractCegarLoop]: Abstraction has has 277 places, 375 transitions, 5316 flow [2022-11-20 09:37:29,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:29,709 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:37:29,709 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:37:29,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 09:37:29,710 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-20 09:37:29,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:37:29,710 INFO L85 PathProgramCache]: Analyzing trace with hash -30423650, now seen corresponding path program 12 times [2022-11-20 09:37:29,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:37:29,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610694047] [2022-11-20 09:37:29,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:37:29,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:37:29,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:37:30,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:37:30,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:37:30,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610694047] [2022-11-20 09:37:30,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610694047] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:37:30,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:37:30,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 09:37:30,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320719394] [2022-11-20 09:37:30,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:37:30,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 09:37:30,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:37:30,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 09:37:30,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-20 09:37:30,208 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-20 09:37:30,209 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 375 transitions, 5316 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:30,210 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:37:30,210 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-20 09:37:30,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:37:31,888 INFO L130 PetriNetUnfolder]: 761/2812 cut-off events. [2022-11-20 09:37:31,888 INFO L131 PetriNetUnfolder]: For 63848/63856 co-relation queries the response was YES. [2022-11-20 09:37:31,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15164 conditions, 2812 events. 761/2812 cut-off events. For 63848/63856 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 20485 event pairs, 142 based on Foata normal form. 34/2825 useless extension candidates. Maximal degree in co-relation 15026. Up to 1083 conditions per place. [2022-11-20 09:37:31,911 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 294 selfloop transitions, 107 changer transitions 59/534 dead transitions. [2022-11-20 09:37:31,911 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 534 transitions, 7182 flow [2022-11-20 09:37:31,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 09:37:31,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-20 09:37:31,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1154 transitions. [2022-11-20 09:37:31,914 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.645413870246085 [2022-11-20 09:37:31,914 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1154 transitions. [2022-11-20 09:37:31,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1154 transitions. [2022-11-20 09:37:31,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:37:31,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1154 transitions. [2022-11-20 09:37:31,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 96.16666666666667) internal successors, (1154), 12 states have internal predecessors, (1154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:31,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:31,921 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 149.0) internal successors, (1937), 13 states have internal predecessors, (1937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:31,921 INFO L175 Difference]: Start difference. First operand has 277 places, 375 transitions, 5316 flow. Second operand 12 states and 1154 transitions. [2022-11-20 09:37:31,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 534 transitions, 7182 flow [2022-11-20 09:37:32,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 534 transitions, 6850 flow, removed 70 selfloop flow, removed 7 redundant places. [2022-11-20 09:37:32,302 INFO L231 Difference]: Finished difference. Result has 286 places, 384 transitions, 5561 flow [2022-11-20 09:37:32,302 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=5016, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5561, PETRI_PLACES=286, PETRI_TRANSITIONS=384} [2022-11-20 09:37:32,303 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 153 predicate places. [2022-11-20 09:37:32,304 INFO L495 AbstractCegarLoop]: Abstraction has has 286 places, 384 transitions, 5561 flow [2022-11-20 09:37:32,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:32,304 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:37:32,304 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:37:32,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 09:37:32,305 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-20 09:37:32,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:37:32,305 INFO L85 PathProgramCache]: Analyzing trace with hash 907866524, now seen corresponding path program 13 times [2022-11-20 09:37:32,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:37:32,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830397750] [2022-11-20 09:37:32,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:37:32,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:37:32,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:37:32,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:37:32,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:37:32,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830397750] [2022-11-20 09:37:32,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830397750] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:37:32,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:37:32,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-20 09:37:32,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756445889] [2022-11-20 09:37:32,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:37:32,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-20 09:37:32,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:37:32,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-20 09:37:32,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2022-11-20 09:37:32,886 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 149 [2022-11-20 09:37:32,887 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 384 transitions, 5561 flow. Second operand has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:32,887 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:37:32,887 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 149 [2022-11-20 09:37:32,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:37:34,654 INFO L130 PetriNetUnfolder]: 706/2719 cut-off events. [2022-11-20 09:37:34,654 INFO L131 PetriNetUnfolder]: For 60299/60308 co-relation queries the response was YES. [2022-11-20 09:37:34,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14727 conditions, 2719 events. 706/2719 cut-off events. For 60299/60308 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 20064 event pairs, 109 based on Foata normal form. 35/2737 useless extension candidates. Maximal degree in co-relation 14586. Up to 1115 conditions per place. [2022-11-20 09:37:34,672 INFO L137 encePairwiseOnDemand]: 130/149 looper letters, 269 selfloop transitions, 109 changer transitions 68/510 dead transitions. [2022-11-20 09:37:34,672 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 510 transitions, 6957 flow [2022-11-20 09:37:34,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-20 09:37:34,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-20 09:37:34,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1227 transitions. [2022-11-20 09:37:34,675 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6334537945276201 [2022-11-20 09:37:34,675 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1227 transitions. [2022-11-20 09:37:34,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1227 transitions. [2022-11-20 09:37:34,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:37:34,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1227 transitions. [2022-11-20 09:37:34,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 94.38461538461539) internal successors, (1227), 13 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:34,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 149.0) internal successors, (2086), 14 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:34,681 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 149.0) internal successors, (2086), 14 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:34,682 INFO L175 Difference]: Start difference. First operand has 286 places, 384 transitions, 5561 flow. Second operand 13 states and 1227 transitions. [2022-11-20 09:37:34,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 510 transitions, 6957 flow [2022-11-20 09:37:34,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 510 transitions, 6597 flow, removed 92 selfloop flow, removed 16 redundant places. [2022-11-20 09:37:34,973 INFO L231 Difference]: Finished difference. Result has 282 places, 369 transitions, 5385 flow [2022-11-20 09:37:34,973 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=5184, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=5385, PETRI_PLACES=282, PETRI_TRANSITIONS=369} [2022-11-20 09:37:34,974 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 149 predicate places. [2022-11-20 09:37:34,974 INFO L495 AbstractCegarLoop]: Abstraction has has 282 places, 369 transitions, 5385 flow [2022-11-20 09:37:34,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 81.53846153846153) internal successors, (1060), 13 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:34,974 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:37:34,975 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] [2022-11-20 09:37:34,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-20 09:37:34,975 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-20 09:37:34,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:37:34,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1648901000, now seen corresponding path program 1 times [2022-11-20 09:37:34,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:37:34,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698714490] [2022-11-20 09:37:34,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:37:34,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:37:35,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:37:35,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:37:35,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:37:35,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698714490] [2022-11-20 09:37:35,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698714490] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:37:35,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:37:35,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-20 09:37:35,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942761434] [2022-11-20 09:37:35,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:37:35,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-20 09:37:35,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:37:35,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-20 09:37:35,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-20 09:37:35,477 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 149 [2022-11-20 09:37:35,478 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 369 transitions, 5385 flow. Second operand has 12 states, 12 states have (on average 80.83333333333333) internal successors, (970), 12 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:35,478 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:37:35,478 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 149 [2022-11-20 09:37:35,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:37:36,312 INFO L130 PetriNetUnfolder]: 591/2031 cut-off events. [2022-11-20 09:37:36,312 INFO L131 PetriNetUnfolder]: For 44455/44455 co-relation queries the response was YES. [2022-11-20 09:37:36,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12205 conditions, 2031 events. 591/2031 cut-off events. For 44455/44455 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 13327 event pairs, 218 based on Foata normal form. 44/2049 useless extension candidates. Maximal degree in co-relation 12072. Up to 1183 conditions per place. [2022-11-20 09:37:36,323 INFO L137 encePairwiseOnDemand]: 139/149 looper letters, 0 selfloop transitions, 0 changer transitions 477/477 dead transitions. [2022-11-20 09:37:36,323 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 477 transitions, 8379 flow [2022-11-20 09:37:36,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 09:37:36,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 09:37:36,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 941 transitions. [2022-11-20 09:37:36,333 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.574130567419158 [2022-11-20 09:37:36,333 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 941 transitions. [2022-11-20 09:37:36,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 941 transitions. [2022-11-20 09:37:36,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:37:36,334 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 941 transitions. [2022-11-20 09:37:36,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 85.54545454545455) internal successors, (941), 11 states have internal predecessors, (941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:36,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:36,340 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 149.0) internal successors, (1788), 12 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:36,340 INFO L175 Difference]: Start difference. First operand has 282 places, 369 transitions, 5385 flow. Second operand 11 states and 941 transitions. [2022-11-20 09:37:36,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 477 transitions, 8379 flow [2022-11-20 09:37:36,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 477 transitions, 7679 flow, removed 91 selfloop flow, removed 20 redundant places. [2022-11-20 09:37:36,499 INFO L231 Difference]: Finished difference. Result has 259 places, 0 transitions, 0 flow [2022-11-20 09:37:36,499 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=149, PETRI_DIFFERENCE_MINUEND_FLOW=4813, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=259, PETRI_TRANSITIONS=0} [2022-11-20 09:37:36,500 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 126 predicate places. [2022-11-20 09:37:36,500 INFO L495 AbstractCegarLoop]: Abstraction has has 259 places, 0 transitions, 0 flow [2022-11-20 09:37:36,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 80.83333333333333) internal successors, (970), 12 states have internal predecessors, (970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:37:36,502 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 11 remaining) [2022-11-20 09:37:36,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2022-11-20 09:37:36,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 11 remaining) [2022-11-20 09:37:36,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2022-11-20 09:37:36,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2022-11-20 09:37:36,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2022-11-20 09:37:36,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2022-11-20 09:37:36,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2022-11-20 09:37:36,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2022-11-20 09:37:36,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2022-11-20 09:37:36,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2022-11-20 09:37:36,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-20 09:37:36,505 INFO L444 BasicCegarLoop]: Path program histogram: [13, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:37:36,510 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 09:37:36,511 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 09:37:36,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:37:36 BasicIcfg [2022-11-20 09:37:36,515 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 09:37:36,516 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 09:37:36,516 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 09:37:36,516 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 09:37:36,516 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:36:56" (3/4) ... [2022-11-20 09:37:36,519 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 09:37:36,525 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-20 09:37:36,529 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-20 09:37:36,529 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-20 09:37:36,529 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 09:37:36,529 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 09:37:36,561 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73a1615-9b2d-4fa6-90fa-455abf247c2b/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 09:37:36,561 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 09:37:36,561 INFO L158 Benchmark]: Toolchain (without parser) took 41419.59ms. Allocated memory was 153.1MB in the beginning and 734.0MB in the end (delta: 580.9MB). Free memory was 116.4MB in the beginning and 562.5MB in the end (delta: -446.1MB). Peak memory consumption was 134.7MB. Max. memory is 16.1GB. [2022-11-20 09:37:36,562 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 119.5MB. Free memory is still 89.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:37:36,562 INFO L158 Benchmark]: CACSL2BoogieTranslator took 645.85ms. Allocated memory is still 153.1MB. Free memory was 116.4MB in the beginning and 110.7MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-20 09:37:36,562 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.73ms. Allocated memory is still 153.1MB. Free memory was 110.7MB in the beginning and 108.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:37:36,563 INFO L158 Benchmark]: Boogie Preprocessor took 63.69ms. Allocated memory is still 153.1MB. Free memory was 108.5MB in the beginning and 106.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:37:36,563 INFO L158 Benchmark]: RCFGBuilder took 616.14ms. Allocated memory is still 153.1MB. Free memory was 106.5MB in the beginning and 88.0MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 09:37:36,563 INFO L158 Benchmark]: TraceAbstraction took 39999.52ms. Allocated memory was 153.1MB in the beginning and 734.0MB in the end (delta: 580.9MB). Free memory was 87.1MB in the beginning and 565.7MB in the end (delta: -478.6MB). Peak memory consumption was 104.4MB. Max. memory is 16.1GB. [2022-11-20 09:37:36,564 INFO L158 Benchmark]: Witness Printer took 45.32ms. Allocated memory is still 734.0MB. Free memory was 565.7MB in the beginning and 562.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 09:37:36,565 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 119.5MB. Free memory is still 89.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 645.85ms. Allocated memory is still 153.1MB. Free memory was 116.4MB in the beginning and 110.7MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.73ms. Allocated memory is still 153.1MB. Free memory was 110.7MB in the beginning and 108.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.69ms. Allocated memory is still 153.1MB. Free memory was 108.5MB in the beginning and 106.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 616.14ms. Allocated memory is still 153.1MB. Free memory was 106.5MB in the beginning and 88.0MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 39999.52ms. Allocated memory was 153.1MB in the beginning and 734.0MB in the end (delta: 580.9MB). Free memory was 87.1MB in the beginning and 565.7MB in the end (delta: -478.6MB). Peak memory consumption was 104.4MB. Max. memory is 16.1GB. * Witness Printer took 45.32ms. Allocated memory is still 734.0MB. Free memory was 565.7MB in the beginning and 562.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 713]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 198 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 39.8s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 13, EmptinessCheckTime: 0.0s, AutomataDifference: 27.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3359 SdHoareTripleChecker+Valid, 11.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3359 mSDsluCounter, 1714 SdHoareTripleChecker+Invalid, 9.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 981 mSDsCounter, 1568 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11308 IncrementalHoareTripleChecker+Invalid, 12876 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1568 mSolverCounterUnsat, 733 mSDtfsCounter, 11308 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 393 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 323 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 695 ImplicationChecksByTransitivity, 5.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5561occurred in iteration=19, InterpolantAutomatonStates: 215, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 10.9s InterpolantComputationTime, 1723 NumberOfCodeBlocks, 1723 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1702 ConstructedInterpolants, 0 QuantifiedInterpolants, 11821 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 09:37:36,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f73a1615-9b2d-4fa6-90fa-455abf247c2b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE