./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a 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_5480dc9d-43db-4a9d-a55a-a352cafcc55b/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5480dc9d-43db-4a9d-a55a-a352cafcc55b/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5480dc9d-43db-4a9d-a55a-a352cafcc55b/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5480dc9d-43db-4a9d-a55a-a352cafcc55b/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5480dc9d-43db-4a9d-a55a-a352cafcc55b/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5480dc9d-43db-4a9d-a55a-a352cafcc55b/bin/uautomizer-Dbtcem3rbc --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 795c382fbb0026f2f6f7212254176553809c7311a8058a10cea47f6b1b03373b --- 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-5e519f3 [2022-11-02 20:10:25,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:10:25,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:10:25,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:10:25,226 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:10:25,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:10:25,229 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:10:25,232 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:10:25,234 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:10:25,235 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:10:25,237 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:10:25,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:10:25,239 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:10:25,240 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:10:25,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:10:25,244 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:10:25,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:10:25,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:10:25,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:10:25,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:10:25,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:10:25,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:10:25,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:10:25,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:10:25,268 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:10:25,279 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:10:25,280 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:10:25,281 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:10:25,282 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:10:25,283 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:10:25,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:10:25,285 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:10:25,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:10:25,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:10:25,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:10:25,291 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:10:25,292 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:10:25,293 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:10:25,293 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:10:25,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:10:25,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:10:25,296 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5480dc9d-43db-4a9d-a55a-a352cafcc55b/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 20:10:25,329 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:10:25,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:10:25,330 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:10:25,330 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:10:25,331 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:10:25,331 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:10:25,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:10:25,332 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:10:25,332 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:10:25,333 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:10:25,333 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 20:10:25,333 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 20:10:25,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:10:25,334 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 20:10:25,334 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:10:25,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:10:25,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:10:25,335 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:10:25,335 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 20:10:25,335 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 20:10:25,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:10:25,336 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:10:25,336 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:10:25,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:10:25,336 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:10:25,337 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:10:25,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:10:25,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:10:25,337 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:10:25,338 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:10:25,338 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:10:25,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:10:25,338 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:10:25,339 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:10:25,339 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:10:25,339 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_5480dc9d-43db-4a9d-a55a-a352cafcc55b/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5480dc9d-43db-4a9d-a55a-a352cafcc55b/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 795c382fbb0026f2f6f7212254176553809c7311a8058a10cea47f6b1b03373b [2022-11-02 20:10:25,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:10:25,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:10:25,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:10:25,684 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:10:25,686 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:10:25,687 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5480dc9d-43db-4a9d-a55a-a352cafcc55b/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c [2022-11-02 20:10:25,796 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5480dc9d-43db-4a9d-a55a-a352cafcc55b/bin/uautomizer-Dbtcem3rbc/data/d327e7c24/639545d4b27145bd8ef26aa79713d263/FLAGe84ab66c1 [2022-11-02 20:10:26,323 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:10:26,324 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5480dc9d-43db-4a9d-a55a-a352cafcc55b/sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c [2022-11-02 20:10:26,338 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5480dc9d-43db-4a9d-a55a-a352cafcc55b/bin/uautomizer-Dbtcem3rbc/data/d327e7c24/639545d4b27145bd8ef26aa79713d263/FLAGe84ab66c1 [2022-11-02 20:10:26,640 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5480dc9d-43db-4a9d-a55a-a352cafcc55b/bin/uautomizer-Dbtcem3rbc/data/d327e7c24/639545d4b27145bd8ef26aa79713d263 [2022-11-02 20:10:26,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:10:26,649 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:10:26,654 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:10:26,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:10:26,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:10:26,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:10:26" (1/1) ... [2022-11-02 20:10:26,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41cdc109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:26, skipping insertion in model container [2022-11-02 20:10:26,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:10:26" (1/1) ... [2022-11-02 20:10:26,673 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:10:26,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:10:27,138 WARN L230 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_5480dc9d-43db-4a9d-a55a-a352cafcc55b/sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c[3034,3047] [2022-11-02 20:10:27,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:10:27,167 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:10:27,240 WARN L230 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_5480dc9d-43db-4a9d-a55a-a352cafcc55b/sv-benchmarks/c/weaver/chl-chromosome-trans.wvr.c[3034,3047] [2022-11-02 20:10:27,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:10:27,288 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:10:27,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:27 WrapperNode [2022-11-02 20:10:27,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:10:27,290 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:10:27,290 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:10:27,290 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:10:27,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:27" (1/1) ... [2022-11-02 20:10:27,318 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:27" (1/1) ... [2022-11-02 20:10:27,378 INFO L138 Inliner]: procedures = 26, calls = 46, calls flagged for inlining = 16, calls inlined = 24, statements flattened = 459 [2022-11-02 20:10:27,379 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:10:27,379 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:10:27,380 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:10:27,380 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:10:27,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:27" (1/1) ... [2022-11-02 20:10:27,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:27" (1/1) ... [2022-11-02 20:10:27,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:27" (1/1) ... [2022-11-02 20:10:27,401 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:27" (1/1) ... [2022-11-02 20:10:27,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:27" (1/1) ... [2022-11-02 20:10:27,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:27" (1/1) ... [2022-11-02 20:10:27,435 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:27" (1/1) ... [2022-11-02 20:10:27,438 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:27" (1/1) ... [2022-11-02 20:10:27,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:10:27,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:10:27,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:10:27,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:10:27,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:27" (1/1) ... [2022-11-02 20:10:27,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:10:27,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5480dc9d-43db-4a9d-a55a-a352cafcc55b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:10:27,516 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5480dc9d-43db-4a9d-a55a-a352cafcc55b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:10:27,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5480dc9d-43db-4a9d-a55a-a352cafcc55b/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:10:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:10:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:10:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:10:27,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:10:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-02 20:10:27,572 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-02 20:10:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-02 20:10:27,572 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-02 20:10:27,572 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-02 20:10:27,572 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-02 20:10:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:10:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:10:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:10:27,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:10:27,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:10:27,575 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 20:10:27,727 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:10:27,729 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:10:28,926 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:10:28,955 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:10:28,958 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-02 20:10:28,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:10:28 BoogieIcfgContainer [2022-11-02 20:10:28,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:10:28,967 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:10:28,967 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:10:28,972 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:10:28,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:10:26" (1/3) ... [2022-11-02 20:10:28,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@539c8548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:10:28, skipping insertion in model container [2022-11-02 20:10:28,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:10:27" (2/3) ... [2022-11-02 20:10:28,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@539c8548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:10:28, skipping insertion in model container [2022-11-02 20:10:28,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:10:28" (3/3) ... [2022-11-02 20:10:28,976 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-trans.wvr.c [2022-11-02 20:10:28,987 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 20:10:29,001 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:10:29,001 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2022-11-02 20:10:29,002 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 20:10:29,185 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-02 20:10:29,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 573 places, 596 transitions, 1216 flow [2022-11-02 20:10:29,679 INFO L130 PetriNetUnfolder]: 33/593 cut-off events. [2022-11-02 20:10:29,679 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-02 20:10:29,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 606 conditions, 593 events. 33/593 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1318 event pairs, 0 based on Foata normal form. 0/512 useless extension candidates. Maximal degree in co-relation 426. Up to 2 conditions per place. [2022-11-02 20:10:29,698 INFO L82 GeneralOperation]: Start removeDead. Operand has 573 places, 596 transitions, 1216 flow [2022-11-02 20:10:29,716 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 548 places, 569 transitions, 1156 flow [2022-11-02 20:10:29,742 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:10:29,755 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;@7480a3ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:10:29,755 INFO L358 AbstractCegarLoop]: Starting to check reachability of 84 error locations. [2022-11-02 20:10:29,767 INFO L130 PetriNetUnfolder]: 3/65 cut-off events. [2022-11-02 20:10:29,767 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 20:10:29,768 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:10:29,768 INFO L208 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] [2022-11-02 20:10:29,769 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-11-02 20:10:29,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:10:29,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1740518570, now seen corresponding path program 1 times [2022-11-02 20:10:29,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:10:29,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775272155] [2022-11-02 20:10:29,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:10:29,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:10:29,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:10:30,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:10:30,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:10:30,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775272155] [2022-11-02 20:10:30,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775272155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:10:30,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:10:30,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:10:30,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223082061] [2022-11-02 20:10:30,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:10:30,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 20:10:30,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:10:30,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 20:10:30,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 20:10:30,195 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 567 out of 596 [2022-11-02 20:10:30,206 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 548 places, 569 transitions, 1156 flow. Second operand has 2 states, 2 states have (on average 567.5) internal successors, (1135), 2 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:30,206 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:10:30,206 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 567 of 596 [2022-11-02 20:10:30,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:10:30,514 INFO L130 PetriNetUnfolder]: 10/548 cut-off events. [2022-11-02 20:10:30,515 INFO L131 PetriNetUnfolder]: For 14/16 co-relation queries the response was YES. [2022-11-02 20:10:30,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 568 conditions, 548 events. 10/548 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1288 event pairs, 0 based on Foata normal form. 30/506 useless extension candidates. Maximal degree in co-relation 411. Up to 7 conditions per place. [2022-11-02 20:10:30,535 INFO L137 encePairwiseOnDemand]: 575/596 looper letters, 6 selfloop transitions, 0 changer transitions 6/548 dead transitions. [2022-11-02 20:10:30,536 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 549 places, 548 transitions, 1126 flow [2022-11-02 20:10:30,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 20:10:30,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-02 20:10:30,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1161 transitions. [2022-11-02 20:10:30,568 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9739932885906041 [2022-11-02 20:10:30,569 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1161 transitions. [2022-11-02 20:10:30,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1161 transitions. [2022-11-02 20:10:30,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:10:30,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1161 transitions. [2022-11-02 20:10:30,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 580.5) internal successors, (1161), 2 states have internal predecessors, (1161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:30,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 596.0) internal successors, (1788), 3 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) [2022-11-02 20:10:30,604 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 596.0) internal successors, (1788), 3 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) [2022-11-02 20:10:30,606 INFO L175 Difference]: Start difference. First operand has 548 places, 569 transitions, 1156 flow. Second operand 2 states and 1161 transitions. [2022-11-02 20:10:30,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 549 places, 548 transitions, 1126 flow [2022-11-02 20:10:30,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 543 places, 548 transitions, 1114 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-02 20:10:30,640 INFO L231 Difference]: Finished difference. Result has 543 places, 542 transitions, 1090 flow [2022-11-02 20:10:30,643 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1102, PETRI_DIFFERENCE_MINUEND_PLACES=542, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=548, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=548, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=1090, PETRI_PLACES=543, PETRI_TRANSITIONS=542} [2022-11-02 20:10:30,648 INFO L287 CegarLoopForPetriNet]: 548 programPoint places, -5 predicate places. [2022-11-02 20:10:30,648 INFO L495 AbstractCegarLoop]: Abstraction has has 543 places, 542 transitions, 1090 flow [2022-11-02 20:10:30,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 567.5) internal successors, (1135), 2 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:30,650 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:10:30,650 INFO L208 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] [2022-11-02 20:10:30,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:10:30,651 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-11-02 20:10:30,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:10:30,652 INFO L85 PathProgramCache]: Analyzing trace with hash 2291765, now seen corresponding path program 1 times [2022-11-02 20:10:30,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:10:30,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694627568] [2022-11-02 20:10:30,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:10:30,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:10:30,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:10:30,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:10:30,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:10:30,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694627568] [2022-11-02 20:10:30,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694627568] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:10:30,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:10:30,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:10:30,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362598914] [2022-11-02 20:10:30,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:10:30,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:10:30,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:10:30,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:10:30,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:10:30,806 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 555 out of 596 [2022-11-02 20:10:30,809 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 543 places, 542 transitions, 1090 flow. Second operand has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:30,809 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:10:30,809 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 555 of 596 [2022-11-02 20:10:30,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:10:31,382 INFO L130 PetriNetUnfolder]: 56/1347 cut-off events. [2022-11-02 20:10:31,382 INFO L131 PetriNetUnfolder]: For 14/16 co-relation queries the response was YES. [2022-11-02 20:10:31,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1432 conditions, 1347 events. 56/1347 cut-off events. For 14/16 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 6864 event pairs, 21 based on Foata normal form. 0/1149 useless extension candidates. Maximal degree in co-relation 1429. Up to 72 conditions per place. [2022-11-02 20:10:31,419 INFO L137 encePairwiseOnDemand]: 593/596 looper letters, 15 selfloop transitions, 2 changer transitions 0/541 dead transitions. [2022-11-02 20:10:31,420 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 538 places, 541 transitions, 1122 flow [2022-11-02 20:10:31,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:10:31,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:10:31,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1683 transitions. [2022-11-02 20:10:31,425 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9412751677852349 [2022-11-02 20:10:31,425 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1683 transitions. [2022-11-02 20:10:31,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1683 transitions. [2022-11-02 20:10:31,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:10:31,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1683 transitions. [2022-11-02 20:10:31,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 561.0) internal successors, (1683), 3 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:31,470 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:31,472 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:31,472 INFO L175 Difference]: Start difference. First operand has 543 places, 542 transitions, 1090 flow. Second operand 3 states and 1683 transitions. [2022-11-02 20:10:31,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 538 places, 541 transitions, 1122 flow [2022-11-02 20:10:31,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 538 places, 541 transitions, 1122 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:10:31,485 INFO L231 Difference]: Finished difference. Result has 538 places, 541 transitions, 1092 flow [2022-11-02 20:10:31,487 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1088, PETRI_DIFFERENCE_MINUEND_PLACES=536, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=541, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=539, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1092, PETRI_PLACES=538, PETRI_TRANSITIONS=541} [2022-11-02 20:10:31,488 INFO L287 CegarLoopForPetriNet]: 548 programPoint places, -10 predicate places. [2022-11-02 20:10:31,489 INFO L495 AbstractCegarLoop]: Abstraction has has 538 places, 541 transitions, 1092 flow [2022-11-02 20:10:31,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:31,491 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:10:31,491 INFO L208 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] [2022-11-02 20:10:31,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 20:10:31,493 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-11-02 20:10:31,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:10:31,494 INFO L85 PathProgramCache]: Analyzing trace with hash -926204485, now seen corresponding path program 1 times [2022-11-02 20:10:31,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:10:31,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290456131] [2022-11-02 20:10:31,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:10:31,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:10:31,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:10:32,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:10:32,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:10:32,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290456131] [2022-11-02 20:10:32,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290456131] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:10:32,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:10:32,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:10:32,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318316622] [2022-11-02 20:10:32,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:10:32,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 20:10:32,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:10:32,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 20:10:32,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 20:10:32,413 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 462 out of 596 [2022-11-02 20:10:32,418 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 538 places, 541 transitions, 1092 flow. Second operand has 6 states, 6 states have (on average 463.8333333333333) internal successors, (2783), 6 states have internal predecessors, (2783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:10:32,419 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:10:32,419 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 462 of 596 [2022-11-02 20:10:32,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:21,560 INFO L130 PetriNetUnfolder]: 49023/197967 cut-off events. [2022-11-02 20:11:21,560 INFO L131 PetriNetUnfolder]: For 349/615 co-relation queries the response was YES. [2022-11-02 20:11:23,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261965 conditions, 197967 events. 49023/197967 cut-off events. For 349/615 co-relation queries the response was YES. Maximal size of possible extension queue 3431. Compared 3244183 event pairs, 42984 based on Foata normal form. 0/164792 useless extension candidates. Maximal degree in co-relation 261961. Up to 63795 conditions per place. [2022-11-02 20:11:24,810 INFO L137 encePairwiseOnDemand]: 578/596 looper letters, 93 selfloop transitions, 15 changer transitions 0/538 dead transitions. [2022-11-02 20:11:24,810 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 540 places, 538 transitions, 1302 flow [2022-11-02 20:11:24,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 20:11:24,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 20:11:24,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2883 transitions. [2022-11-02 20:11:24,820 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8062080536912751 [2022-11-02 20:11:24,820 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2883 transitions. [2022-11-02 20:11:24,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2883 transitions. [2022-11-02 20:11:24,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:24,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2883 transitions. [2022-11-02 20:11:24,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 480.5) internal successors, (2883), 6 states have internal predecessors, (2883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:24,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 596.0) internal successors, (4172), 7 states have internal predecessors, (4172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:24,842 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 596.0) internal successors, (4172), 7 states have internal predecessors, (4172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:24,842 INFO L175 Difference]: Start difference. First operand has 538 places, 541 transitions, 1092 flow. Second operand 6 states and 2883 transitions. [2022-11-02 20:11:24,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 540 places, 538 transitions, 1302 flow [2022-11-02 20:11:24,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 538 places, 538 transitions, 1298 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:11:24,856 INFO L231 Difference]: Finished difference. Result has 538 places, 538 transitions, 1112 flow [2022-11-02 20:11:24,857 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1082, PETRI_DIFFERENCE_MINUEND_PLACES=533, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=538, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=523, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1112, PETRI_PLACES=538, PETRI_TRANSITIONS=538} [2022-11-02 20:11:24,860 INFO L287 CegarLoopForPetriNet]: 548 programPoint places, -10 predicate places. [2022-11-02 20:11:24,861 INFO L495 AbstractCegarLoop]: Abstraction has has 538 places, 538 transitions, 1112 flow [2022-11-02 20:11:24,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 463.8333333333333) internal successors, (2783), 6 states have internal predecessors, (2783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:24,863 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:24,863 INFO L208 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] [2022-11-02 20:11:24,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 20:11:24,864 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-11-02 20:11:24,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:24,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1011316489, now seen corresponding path program 1 times [2022-11-02 20:11:24,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:24,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949346261] [2022-11-02 20:11:24,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:24,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:24,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:24,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:24,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:24,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949346261] [2022-11-02 20:11:24,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949346261] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:24,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:24,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:11:24,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983602440] [2022-11-02 20:11:24,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:24,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:11:24,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:24,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:11:24,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:11:24,965 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 555 out of 596 [2022-11-02 20:11:24,968 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 538 places, 538 transitions, 1112 flow. Second operand has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:24,968 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:24,968 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 555 of 596 [2022-11-02 20:11:24,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:25,481 INFO L130 PetriNetUnfolder]: 86/1882 cut-off events. [2022-11-02 20:11:25,482 INFO L131 PetriNetUnfolder]: For 11/16 co-relation queries the response was YES. [2022-11-02 20:11:25,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2026 conditions, 1882 events. 86/1882 cut-off events. For 11/16 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 12266 event pairs, 39 based on Foata normal form. 0/1600 useless extension candidates. Maximal degree in co-relation 2022. Up to 103 conditions per place. [2022-11-02 20:11:25,534 INFO L137 encePairwiseOnDemand]: 593/596 looper letters, 15 selfloop transitions, 2 changer transitions 0/537 dead transitions. [2022-11-02 20:11:25,535 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 539 places, 537 transitions, 1144 flow [2022-11-02 20:11:25,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:11:25,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:11:25,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1683 transitions. [2022-11-02 20:11:25,540 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9412751677852349 [2022-11-02 20:11:25,541 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1683 transitions. [2022-11-02 20:11:25,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1683 transitions. [2022-11-02 20:11:25,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:25,543 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1683 transitions. [2022-11-02 20:11:25,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 561.0) internal successors, (1683), 3 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:25,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:25,555 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:25,555 INFO L175 Difference]: Start difference. First operand has 538 places, 538 transitions, 1112 flow. Second operand 3 states and 1683 transitions. [2022-11-02 20:11:25,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 539 places, 537 transitions, 1144 flow [2022-11-02 20:11:25,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 534 places, 537 transitions, 1114 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-02 20:11:25,569 INFO L231 Difference]: Finished difference. Result has 534 places, 537 transitions, 1084 flow [2022-11-02 20:11:25,570 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1080, PETRI_DIFFERENCE_MINUEND_PLACES=532, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=537, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=535, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1084, PETRI_PLACES=534, PETRI_TRANSITIONS=537} [2022-11-02 20:11:25,571 INFO L287 CegarLoopForPetriNet]: 548 programPoint places, -14 predicate places. [2022-11-02 20:11:25,571 INFO L495 AbstractCegarLoop]: Abstraction has has 534 places, 537 transitions, 1084 flow [2022-11-02 20:11:25,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:25,573 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:25,574 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:25,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 20:11:25,574 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-11-02 20:11:25,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:25,575 INFO L85 PathProgramCache]: Analyzing trace with hash -339622776, now seen corresponding path program 1 times [2022-11-02 20:11:25,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:25,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604451114] [2022-11-02 20:11:25,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:25,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:25,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:25,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:25,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604451114] [2022-11-02 20:11:25,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604451114] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:25,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:25,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:11:25,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990247623] [2022-11-02 20:11:25,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:25,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:11:25,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:25,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:11:25,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:11:25,651 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 555 out of 596 [2022-11-02 20:11:25,654 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 534 places, 537 transitions, 1084 flow. Second operand has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:25,654 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:25,654 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 555 of 596 [2022-11-02 20:11:25,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:26,101 INFO L130 PetriNetUnfolder]: 82/1587 cut-off events. [2022-11-02 20:11:26,101 INFO L131 PetriNetUnfolder]: For 26/28 co-relation queries the response was YES. [2022-11-02 20:11:26,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1705 conditions, 1587 events. 82/1587 cut-off events. For 26/28 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 8795 event pairs, 39 based on Foata normal form. 0/1357 useless extension candidates. Maximal degree in co-relation 1701. Up to 105 conditions per place. [2022-11-02 20:11:26,142 INFO L137 encePairwiseOnDemand]: 593/596 looper letters, 15 selfloop transitions, 2 changer transitions 0/536 dead transitions. [2022-11-02 20:11:26,142 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 535 places, 536 transitions, 1116 flow [2022-11-02 20:11:26,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:11:26,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:11:26,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1683 transitions. [2022-11-02 20:11:26,148 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9412751677852349 [2022-11-02 20:11:26,149 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1683 transitions. [2022-11-02 20:11:26,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1683 transitions. [2022-11-02 20:11:26,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:26,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1683 transitions. [2022-11-02 20:11:26,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 561.0) internal successors, (1683), 3 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:26,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:26,162 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:26,162 INFO L175 Difference]: Start difference. First operand has 534 places, 537 transitions, 1084 flow. Second operand 3 states and 1683 transitions. [2022-11-02 20:11:26,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 535 places, 536 transitions, 1116 flow [2022-11-02 20:11:26,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 533 places, 536 transitions, 1112 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:11:26,175 INFO L231 Difference]: Finished difference. Result has 533 places, 536 transitions, 1082 flow [2022-11-02 20:11:26,176 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1078, PETRI_DIFFERENCE_MINUEND_PLACES=531, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=536, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=534, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1082, PETRI_PLACES=533, PETRI_TRANSITIONS=536} [2022-11-02 20:11:26,179 INFO L287 CegarLoopForPetriNet]: 548 programPoint places, -15 predicate places. [2022-11-02 20:11:26,179 INFO L495 AbstractCegarLoop]: Abstraction has has 533 places, 536 transitions, 1082 flow [2022-11-02 20:11:26,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:26,181 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:26,182 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:26,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 20:11:26,182 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-11-02 20:11:26,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:26,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1768843540, now seen corresponding path program 1 times [2022-11-02 20:11:26,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:26,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183474094] [2022-11-02 20:11:26,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:26,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:26,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:26,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:26,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:26,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183474094] [2022-11-02 20:11:26,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183474094] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:26,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:26,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:11:26,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146833364] [2022-11-02 20:11:26,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:26,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:11:26,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:26,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:11:26,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:11:26,292 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 555 out of 596 [2022-11-02 20:11:26,295 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 533 places, 536 transitions, 1082 flow. Second operand has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:26,296 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:26,296 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 555 of 596 [2022-11-02 20:11:26,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:26,795 INFO L130 PetriNetUnfolder]: 45/1249 cut-off events. [2022-11-02 20:11:26,795 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-02 20:11:26,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1323 conditions, 1249 events. 45/1249 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 6116 event pairs, 21 based on Foata normal form. 0/1063 useless extension candidates. Maximal degree in co-relation 1319. Up to 58 conditions per place. [2022-11-02 20:11:26,824 INFO L137 encePairwiseOnDemand]: 593/596 looper letters, 15 selfloop transitions, 2 changer transitions 0/535 dead transitions. [2022-11-02 20:11:26,825 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 534 places, 535 transitions, 1114 flow [2022-11-02 20:11:26,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:11:26,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:11:26,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1683 transitions. [2022-11-02 20:11:26,830 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9412751677852349 [2022-11-02 20:11:26,830 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1683 transitions. [2022-11-02 20:11:26,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1683 transitions. [2022-11-02 20:11:26,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:26,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1683 transitions. [2022-11-02 20:11:26,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 561.0) internal successors, (1683), 3 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:26,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:26,844 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:26,844 INFO L175 Difference]: Start difference. First operand has 533 places, 536 transitions, 1082 flow. Second operand 3 states and 1683 transitions. [2022-11-02 20:11:26,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 534 places, 535 transitions, 1114 flow [2022-11-02 20:11:26,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 532 places, 535 transitions, 1110 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:11:26,856 INFO L231 Difference]: Finished difference. Result has 532 places, 535 transitions, 1080 flow [2022-11-02 20:11:26,857 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1076, PETRI_DIFFERENCE_MINUEND_PLACES=530, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=535, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=533, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1080, PETRI_PLACES=532, PETRI_TRANSITIONS=535} [2022-11-02 20:11:26,860 INFO L287 CegarLoopForPetriNet]: 548 programPoint places, -16 predicate places. [2022-11-02 20:11:26,860 INFO L495 AbstractCegarLoop]: Abstraction has has 532 places, 535 transitions, 1080 flow [2022-11-02 20:11:26,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:26,880 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:26,880 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:26,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 20:11:26,881 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-11-02 20:11:26,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:26,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1594654618, now seen corresponding path program 1 times [2022-11-02 20:11:26,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:26,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391692501] [2022-11-02 20:11:26,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:26,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:26,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:26,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:26,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:26,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391692501] [2022-11-02 20:11:26,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391692501] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:26,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:26,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:11:26,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130297330] [2022-11-02 20:11:26,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:26,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:11:26,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:26,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:11:26,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:11:26,969 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 555 out of 596 [2022-11-02 20:11:26,971 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 532 places, 535 transitions, 1080 flow. Second operand has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:26,972 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:26,972 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 555 of 596 [2022-11-02 20:11:26,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:27,393 INFO L130 PetriNetUnfolder]: 73/1716 cut-off events. [2022-11-02 20:11:27,394 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-02 20:11:27,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1829 conditions, 1716 events. 73/1716 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 11675 event pairs, 39 based on Foata normal form. 0/1455 useless extension candidates. Maximal degree in co-relation 1825. Up to 85 conditions per place. [2022-11-02 20:11:27,431 INFO L137 encePairwiseOnDemand]: 593/596 looper letters, 15 selfloop transitions, 2 changer transitions 0/534 dead transitions. [2022-11-02 20:11:27,432 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 533 places, 534 transitions, 1112 flow [2022-11-02 20:11:27,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:11:27,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:11:27,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1683 transitions. [2022-11-02 20:11:27,437 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9412751677852349 [2022-11-02 20:11:27,437 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1683 transitions. [2022-11-02 20:11:27,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1683 transitions. [2022-11-02 20:11:27,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:27,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1683 transitions. [2022-11-02 20:11:27,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 561.0) internal successors, (1683), 3 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:27,447 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:27,448 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:27,448 INFO L175 Difference]: Start difference. First operand has 532 places, 535 transitions, 1080 flow. Second operand 3 states and 1683 transitions. [2022-11-02 20:11:27,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 533 places, 534 transitions, 1112 flow [2022-11-02 20:11:27,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 531 places, 534 transitions, 1108 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:11:27,460 INFO L231 Difference]: Finished difference. Result has 531 places, 534 transitions, 1078 flow [2022-11-02 20:11:27,461 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1074, PETRI_DIFFERENCE_MINUEND_PLACES=529, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=534, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=532, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1078, PETRI_PLACES=531, PETRI_TRANSITIONS=534} [2022-11-02 20:11:27,462 INFO L287 CegarLoopForPetriNet]: 548 programPoint places, -17 predicate places. [2022-11-02 20:11:27,462 INFO L495 AbstractCegarLoop]: Abstraction has has 531 places, 534 transitions, 1078 flow [2022-11-02 20:11:27,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:27,463 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:27,464 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:27,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 20:11:27,464 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-11-02 20:11:27,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:27,465 INFO L85 PathProgramCache]: Analyzing trace with hash -915065386, now seen corresponding path program 1 times [2022-11-02 20:11:27,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:27,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310605479] [2022-11-02 20:11:27,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:27,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:27,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:27,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:27,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:27,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310605479] [2022-11-02 20:11:27,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310605479] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:27,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:27,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:11:27,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925969412] [2022-11-02 20:11:27,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:27,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:11:27,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:27,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:11:27,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:11:27,532 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 555 out of 596 [2022-11-02 20:11:27,534 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 531 places, 534 transitions, 1078 flow. Second operand has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:27,534 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:27,535 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 555 of 596 [2022-11-02 20:11:27,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:27,898 INFO L130 PetriNetUnfolder]: 71/1575 cut-off events. [2022-11-02 20:11:27,898 INFO L131 PetriNetUnfolder]: For 21/29 co-relation queries the response was YES. [2022-11-02 20:11:27,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1673 conditions, 1575 events. 71/1575 cut-off events. For 21/29 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 9270 event pairs, 39 based on Foata normal form. 0/1344 useless extension candidates. Maximal degree in co-relation 1669. Up to 85 conditions per place. [2022-11-02 20:11:27,935 INFO L137 encePairwiseOnDemand]: 593/596 looper letters, 15 selfloop transitions, 2 changer transitions 0/533 dead transitions. [2022-11-02 20:11:27,935 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 532 places, 533 transitions, 1110 flow [2022-11-02 20:11:27,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:11:27,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:11:27,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1683 transitions. [2022-11-02 20:11:27,941 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9412751677852349 [2022-11-02 20:11:27,941 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1683 transitions. [2022-11-02 20:11:27,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1683 transitions. [2022-11-02 20:11:27,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:27,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1683 transitions. [2022-11-02 20:11:27,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 561.0) internal successors, (1683), 3 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:27,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:27,951 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:27,952 INFO L175 Difference]: Start difference. First operand has 531 places, 534 transitions, 1078 flow. Second operand 3 states and 1683 transitions. [2022-11-02 20:11:27,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 532 places, 533 transitions, 1110 flow [2022-11-02 20:11:27,956 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 530 places, 533 transitions, 1106 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:11:27,964 INFO L231 Difference]: Finished difference. Result has 530 places, 533 transitions, 1076 flow [2022-11-02 20:11:27,965 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1072, PETRI_DIFFERENCE_MINUEND_PLACES=528, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=533, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=531, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1076, PETRI_PLACES=530, PETRI_TRANSITIONS=533} [2022-11-02 20:11:27,968 INFO L287 CegarLoopForPetriNet]: 548 programPoint places, -18 predicate places. [2022-11-02 20:11:27,969 INFO L495 AbstractCegarLoop]: Abstraction has has 530 places, 533 transitions, 1076 flow [2022-11-02 20:11:27,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:27,971 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:27,971 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:27,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 20:11:27,972 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-11-02 20:11:27,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:27,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1440452089, now seen corresponding path program 1 times [2022-11-02 20:11:27,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:27,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784317608] [2022-11-02 20:11:27,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:27,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:28,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:28,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:28,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:28,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784317608] [2022-11-02 20:11:28,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784317608] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:28,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:28,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:11:28,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281594006] [2022-11-02 20:11:28,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:28,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:11:28,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:28,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:11:28,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:11:28,068 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 558 out of 596 [2022-11-02 20:11:28,070 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 530 places, 533 transitions, 1076 flow. Second operand has 3 states, 3 states have (on average 559.6666666666666) internal successors, (1679), 3 states have internal predecessors, (1679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:28,070 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:28,070 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 558 of 596 [2022-11-02 20:11:28,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:28,373 INFO L130 PetriNetUnfolder]: 34/1131 cut-off events. [2022-11-02 20:11:28,374 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-02 20:11:28,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1180 conditions, 1131 events. 34/1131 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 5084 event pairs, 6 based on Foata normal form. 0/980 useless extension candidates. Maximal degree in co-relation 1176. Up to 31 conditions per place. [2022-11-02 20:11:28,391 INFO L137 encePairwiseOnDemand]: 592/596 looper letters, 14 selfloop transitions, 2 changer transitions 0/535 dead transitions. [2022-11-02 20:11:28,391 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 530 places, 535 transitions, 1114 flow [2022-11-02 20:11:28,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:11:28,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:11:28,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1692 transitions. [2022-11-02 20:11:28,397 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9463087248322147 [2022-11-02 20:11:28,397 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1692 transitions. [2022-11-02 20:11:28,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1692 transitions. [2022-11-02 20:11:28,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:28,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1692 transitions. [2022-11-02 20:11:28,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 564.0) internal successors, (1692), 3 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:28,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:28,408 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:28,409 INFO L175 Difference]: Start difference. First operand has 530 places, 533 transitions, 1076 flow. Second operand 3 states and 1692 transitions. [2022-11-02 20:11:28,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 530 places, 535 transitions, 1114 flow [2022-11-02 20:11:28,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 528 places, 535 transitions, 1110 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:11:28,422 INFO L231 Difference]: Finished difference. Result has 529 places, 533 transitions, 1082 flow [2022-11-02 20:11:28,423 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1068, PETRI_DIFFERENCE_MINUEND_PLACES=526, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=531, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=529, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1082, PETRI_PLACES=529, PETRI_TRANSITIONS=533} [2022-11-02 20:11:28,424 INFO L287 CegarLoopForPetriNet]: 548 programPoint places, -19 predicate places. [2022-11-02 20:11:28,424 INFO L495 AbstractCegarLoop]: Abstraction has has 529 places, 533 transitions, 1082 flow [2022-11-02 20:11:28,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 559.6666666666666) internal successors, (1679), 3 states have internal predecessors, (1679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:28,425 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:28,425 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:28,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 20:11:28,426 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-11-02 20:11:28,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:28,427 INFO L85 PathProgramCache]: Analyzing trace with hash -2117060305, now seen corresponding path program 1 times [2022-11-02 20:11:28,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:28,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076070585] [2022-11-02 20:11:28,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:28,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:28,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:28,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:28,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:28,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076070585] [2022-11-02 20:11:28,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076070585] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:28,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:28,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:11:28,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624318024] [2022-11-02 20:11:28,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:28,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:11:28,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:28,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:11:28,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:11:28,502 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 558 out of 596 [2022-11-02 20:11:28,504 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 529 places, 533 transitions, 1082 flow. Second operand has 3 states, 3 states have (on average 560.0) internal successors, (1680), 3 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:28,504 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:28,504 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 558 of 596 [2022-11-02 20:11:28,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:28,945 INFO L130 PetriNetUnfolder]: 56/1701 cut-off events. [2022-11-02 20:11:28,945 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-02 20:11:28,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1777 conditions, 1701 events. 56/1701 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 11701 event pairs, 11 based on Foata normal form. 0/1473 useless extension candidates. Maximal degree in co-relation 1773. Up to 43 conditions per place. [2022-11-02 20:11:28,983 INFO L137 encePairwiseOnDemand]: 592/596 looper letters, 14 selfloop transitions, 2 changer transitions 0/535 dead transitions. [2022-11-02 20:11:28,983 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 529 places, 535 transitions, 1120 flow [2022-11-02 20:11:28,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:11:28,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:11:28,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1692 transitions. [2022-11-02 20:11:28,988 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9463087248322147 [2022-11-02 20:11:28,988 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1692 transitions. [2022-11-02 20:11:28,988 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1692 transitions. [2022-11-02 20:11:28,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:28,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1692 transitions. [2022-11-02 20:11:28,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 564.0) internal successors, (1692), 3 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:28,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:28,999 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:28,999 INFO L175 Difference]: Start difference. First operand has 529 places, 533 transitions, 1082 flow. Second operand 3 states and 1692 transitions. [2022-11-02 20:11:29,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 529 places, 535 transitions, 1120 flow [2022-11-02 20:11:29,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 529 places, 535 transitions, 1120 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:11:29,012 INFO L231 Difference]: Finished difference. Result has 530 places, 533 transitions, 1092 flow [2022-11-02 20:11:29,014 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1078, PETRI_DIFFERENCE_MINUEND_PLACES=527, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=531, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=529, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1092, PETRI_PLACES=530, PETRI_TRANSITIONS=533} [2022-11-02 20:11:29,015 INFO L287 CegarLoopForPetriNet]: 548 programPoint places, -18 predicate places. [2022-11-02 20:11:29,015 INFO L495 AbstractCegarLoop]: Abstraction has has 530 places, 533 transitions, 1092 flow [2022-11-02 20:11:29,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 560.0) internal successors, (1680), 3 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:29,016 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:29,016 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:29,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 20:11:29,017 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-11-02 20:11:29,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:29,017 INFO L85 PathProgramCache]: Analyzing trace with hash -949042844, now seen corresponding path program 1 times [2022-11-02 20:11:29,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:29,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278622092] [2022-11-02 20:11:29,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:29,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:29,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:29,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:29,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:29,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278622092] [2022-11-02 20:11:29,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278622092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:29,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:29,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:11:29,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580857940] [2022-11-02 20:11:29,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:29,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:11:29,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:29,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:11:29,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:11:29,130 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 547 out of 596 [2022-11-02 20:11:29,132 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 530 places, 533 transitions, 1092 flow. Second operand has 3 states, 3 states have (on average 548.3333333333334) internal successors, (1645), 3 states have internal predecessors, (1645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:29,132 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:29,132 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 547 of 596 [2022-11-02 20:11:29,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:29,523 INFO L130 PetriNetUnfolder]: 75/1241 cut-off events. [2022-11-02 20:11:29,523 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-02 20:11:29,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1450 conditions, 1241 events. 75/1241 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 7142 event pairs, 42 based on Foata normal form. 0/1088 useless extension candidates. Maximal degree in co-relation 1445. Up to 123 conditions per place. [2022-11-02 20:11:29,560 INFO L137 encePairwiseOnDemand]: 593/596 looper letters, 25 selfloop transitions, 2 changer transitions 0/534 dead transitions. [2022-11-02 20:11:29,561 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 531 places, 534 transitions, 1150 flow [2022-11-02 20:11:29,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:11:29,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:11:29,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1669 transitions. [2022-11-02 20:11:29,566 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9334451901565995 [2022-11-02 20:11:29,566 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1669 transitions. [2022-11-02 20:11:29,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1669 transitions. [2022-11-02 20:11:29,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:29,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1669 transitions. [2022-11-02 20:11:29,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:29,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:29,577 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:29,577 INFO L175 Difference]: Start difference. First operand has 530 places, 533 transitions, 1092 flow. Second operand 3 states and 1669 transitions. [2022-11-02 20:11:29,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 531 places, 534 transitions, 1150 flow [2022-11-02 20:11:29,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 531 places, 534 transitions, 1150 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:11:29,590 INFO L231 Difference]: Finished difference. Result has 531 places, 532 transitions, 1094 flow [2022-11-02 20:11:29,592 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1090, PETRI_DIFFERENCE_MINUEND_PLACES=529, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=532, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=530, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1094, PETRI_PLACES=531, PETRI_TRANSITIONS=532} [2022-11-02 20:11:29,592 INFO L287 CegarLoopForPetriNet]: 548 programPoint places, -17 predicate places. [2022-11-02 20:11:29,593 INFO L495 AbstractCegarLoop]: Abstraction has has 531 places, 532 transitions, 1094 flow [2022-11-02 20:11:29,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 548.3333333333334) internal successors, (1645), 3 states have internal predecessors, (1645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:29,594 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:29,594 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:29,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-02 20:11:29,594 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-11-02 20:11:29,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:29,595 INFO L85 PathProgramCache]: Analyzing trace with hash -2087203755, now seen corresponding path program 1 times [2022-11-02 20:11:29,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:29,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226708915] [2022-11-02 20:11:29,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:29,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:29,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:29,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:29,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:29,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226708915] [2022-11-02 20:11:29,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226708915] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:29,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:29,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:11:29,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902101755] [2022-11-02 20:11:29,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:29,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:11:29,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:29,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:11:29,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:11:29,693 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 558 out of 596 [2022-11-02 20:11:29,695 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 531 places, 532 transitions, 1094 flow. Second operand has 3 states, 3 states have (on average 560.0) internal successors, (1680), 3 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:29,695 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:29,695 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 558 of 596 [2022-11-02 20:11:29,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:30,224 INFO L130 PetriNetUnfolder]: 68/1911 cut-off events. [2022-11-02 20:11:30,225 INFO L131 PetriNetUnfolder]: For 16/21 co-relation queries the response was YES. [2022-11-02 20:11:30,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2001 conditions, 1911 events. 68/1911 cut-off events. For 16/21 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 12612 event pairs, 15 based on Foata normal form. 0/1649 useless extension candidates. Maximal degree in co-relation 1995. Up to 56 conditions per place. [2022-11-02 20:11:30,273 INFO L137 encePairwiseOnDemand]: 592/596 looper letters, 14 selfloop transitions, 2 changer transitions 0/534 dead transitions. [2022-11-02 20:11:30,273 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 531 places, 534 transitions, 1132 flow [2022-11-02 20:11:30,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:11:30,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 20:11:30,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1692 transitions. [2022-11-02 20:11:30,278 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9463087248322147 [2022-11-02 20:11:30,278 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1692 transitions. [2022-11-02 20:11:30,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1692 transitions. [2022-11-02 20:11:30,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:30,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1692 transitions. [2022-11-02 20:11:30,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 564.0) internal successors, (1692), 3 states have internal predecessors, (1692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:30,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:30,289 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 596.0) internal successors, (2384), 4 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:30,289 INFO L175 Difference]: Start difference. First operand has 531 places, 532 transitions, 1094 flow. Second operand 3 states and 1692 transitions. [2022-11-02 20:11:30,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 531 places, 534 transitions, 1132 flow [2022-11-02 20:11:30,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 529 places, 534 transitions, 1128 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 20:11:30,303 INFO L231 Difference]: Finished difference. Result has 530 places, 532 transitions, 1100 flow [2022-11-02 20:11:30,304 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1086, PETRI_DIFFERENCE_MINUEND_PLACES=527, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=530, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=528, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1100, PETRI_PLACES=530, PETRI_TRANSITIONS=532} [2022-11-02 20:11:30,305 INFO L287 CegarLoopForPetriNet]: 548 programPoint places, -18 predicate places. [2022-11-02 20:11:30,305 INFO L495 AbstractCegarLoop]: Abstraction has has 530 places, 532 transitions, 1100 flow [2022-11-02 20:11:30,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 560.0) internal successors, (1680), 3 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:30,306 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:30,307 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:30,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-02 20:11:30,307 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-11-02 20:11:30,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:30,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1534590956, now seen corresponding path program 1 times [2022-11-02 20:11:30,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:30,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346211592] [2022-11-02 20:11:30,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:30,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:30,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:30,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 20:11:30,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:30,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346211592] [2022-11-02 20:11:30,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346211592] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:30,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:11:30,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 20:11:30,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181396456] [2022-11-02 20:11:30,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:30,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 20:11:30,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:30,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 20:11:30,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:11:30,489 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 513 out of 596 [2022-11-02 20:11:30,492 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 530 places, 532 transitions, 1100 flow. Second operand has 5 states, 5 states have (on average 518.4) internal successors, (2592), 5 states have internal predecessors, (2592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:30,493 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:30,493 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 513 of 596 [2022-11-02 20:11:30,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:30,934 INFO L130 PetriNetUnfolder]: 22/938 cut-off events. [2022-11-02 20:11:30,934 INFO L131 PetriNetUnfolder]: For 4/7 co-relation queries the response was YES. [2022-11-02 20:11:30,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1054 conditions, 938 events. 22/938 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3927 event pairs, 0 based on Foata normal form. 0/835 useless extension candidates. Maximal degree in co-relation 1048. Up to 54 conditions per place. [2022-11-02 20:11:30,959 INFO L137 encePairwiseOnDemand]: 581/596 looper letters, 72 selfloop transitions, 12 changer transitions 0/559 dead transitions. [2022-11-02 20:11:30,959 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 534 places, 559 transitions, 1322 flow [2022-11-02 20:11:30,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:11:30,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-02 20:11:30,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2652 transitions. [2022-11-02 20:11:30,966 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8899328859060402 [2022-11-02 20:11:30,967 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2652 transitions. [2022-11-02 20:11:30,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2652 transitions. [2022-11-02 20:11:30,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:30,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2652 transitions. [2022-11-02 20:11:30,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 530.4) internal successors, (2652), 5 states have internal predecessors, (2652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:30,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 596.0) internal successors, (3576), 6 states have internal predecessors, (3576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:30,984 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 596.0) internal successors, (3576), 6 states have internal predecessors, (3576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:30,984 INFO L175 Difference]: Start difference. First operand has 530 places, 532 transitions, 1100 flow. Second operand 5 states and 2652 transitions. [2022-11-02 20:11:30,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 534 places, 559 transitions, 1322 flow [2022-11-02 20:11:30,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 534 places, 559 transitions, 1322 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-02 20:11:30,998 INFO L231 Difference]: Finished difference. Result has 535 places, 535 transitions, 1148 flow [2022-11-02 20:11:30,999 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1100, PETRI_DIFFERENCE_MINUEND_PLACES=530, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=532, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=520, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1148, PETRI_PLACES=535, PETRI_TRANSITIONS=535} [2022-11-02 20:11:31,000 INFO L287 CegarLoopForPetriNet]: 548 programPoint places, -13 predicate places. [2022-11-02 20:11:31,000 INFO L495 AbstractCegarLoop]: Abstraction has has 535 places, 535 transitions, 1148 flow [2022-11-02 20:11:31,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 518.4) internal successors, (2592), 5 states have internal predecessors, (2592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:31,002 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:31,002 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:31,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-02 20:11:31,003 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-11-02 20:11:31,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:31,003 INFO L85 PathProgramCache]: Analyzing trace with hash -801154346, now seen corresponding path program 1 times [2022-11-02 20:11:31,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:31,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533976750] [2022-11-02 20:11:31,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:31,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:31,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:31,348 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-02 20:11:31,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:31,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533976750] [2022-11-02 20:11:31,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533976750] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:11:31,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282628269] [2022-11-02 20:11:31,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:31,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:11:31,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5480dc9d-43db-4a9d-a55a-a352cafcc55b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:11:31,354 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5480dc9d-43db-4a9d-a55a-a352cafcc55b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:11:31,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5480dc9d-43db-4a9d-a55a-a352cafcc55b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 20:11:31,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:31,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-02 20:11:31,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:11:31,889 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-02 20:11:31,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 20:11:32,032 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-02 20:11:32,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282628269] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 20:11:32,032 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 20:11:32,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-11-02 20:11:32,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608983033] [2022-11-02 20:11:32,033 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 20:11:32,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-02 20:11:32,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:32,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-02 20:11:32,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-11-02 20:11:32,042 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 510 out of 596 [2022-11-02 20:11:32,050 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 535 places, 535 transitions, 1148 flow. Second operand has 15 states, 15 states have (on average 515.8) internal successors, (7737), 15 states have internal predecessors, (7737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:32,050 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:32,050 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 510 of 596 [2022-11-02 20:11:32,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 20:11:32,992 INFO L130 PetriNetUnfolder]: 22/986 cut-off events. [2022-11-02 20:11:32,993 INFO L131 PetriNetUnfolder]: For 16/19 co-relation queries the response was YES. [2022-11-02 20:11:33,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1167 conditions, 986 events. 22/986 cut-off events. For 16/19 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3857 event pairs, 0 based on Foata normal form. 6/892 useless extension candidates. Maximal degree in co-relation 1159. Up to 30 conditions per place. [2022-11-02 20:11:33,019 INFO L137 encePairwiseOnDemand]: 572/596 looper letters, 90 selfloop transitions, 33 changer transitions 0/595 dead transitions. [2022-11-02 20:11:33,019 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 545 places, 595 transitions, 1520 flow [2022-11-02 20:11:33,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-02 20:11:33,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-02 20:11:33,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 5739 transitions. [2022-11-02 20:11:33,032 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8753813300793166 [2022-11-02 20:11:33,033 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 5739 transitions. [2022-11-02 20:11:33,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 5739 transitions. [2022-11-02 20:11:33,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 20:11:33,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 5739 transitions. [2022-11-02 20:11:33,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 521.7272727272727) internal successors, (5739), 11 states have internal predecessors, (5739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:33,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 596.0) internal successors, (7152), 12 states have internal predecessors, (7152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:33,064 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 596.0) internal successors, (7152), 12 states have internal predecessors, (7152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:33,064 INFO L175 Difference]: Start difference. First operand has 535 places, 535 transitions, 1148 flow. Second operand 11 states and 5739 transitions. [2022-11-02 20:11:33,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 545 places, 595 transitions, 1520 flow [2022-11-02 20:11:33,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 595 transitions, 1502 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-02 20:11:33,082 INFO L231 Difference]: Finished difference. Result has 545 places, 553 transitions, 1297 flow [2022-11-02 20:11:33,083 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=596, PETRI_DIFFERENCE_MINUEND_FLOW=1130, PETRI_DIFFERENCE_MINUEND_PLACES=532, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=535, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=511, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1297, PETRI_PLACES=545, PETRI_TRANSITIONS=553} [2022-11-02 20:11:33,084 INFO L287 CegarLoopForPetriNet]: 548 programPoint places, -3 predicate places. [2022-11-02 20:11:33,084 INFO L495 AbstractCegarLoop]: Abstraction has has 545 places, 553 transitions, 1297 flow [2022-11-02 20:11:33,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 515.8) internal successors, (7737), 15 states have internal predecessors, (7737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:33,087 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 20:11:33,088 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:11:33,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5480dc9d-43db-4a9d-a55a-a352cafcc55b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:11:33,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5480dc9d-43db-4a9d-a55a-a352cafcc55b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-02 20:11:33,302 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 80 more)] === [2022-11-02 20:11:33,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:11:33,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1798193578, now seen corresponding path program 2 times [2022-11-02 20:11:33,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:11:33,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167555897] [2022-11-02 20:11:33,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:11:33,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:11:33,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:11:33,886 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-02 20:11:33,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:11:33,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167555897] [2022-11-02 20:11:33,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167555897] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 20:11:33,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265418871] [2022-11-02 20:11:33,887 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 20:11:33,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:11:33,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5480dc9d-43db-4a9d-a55a-a352cafcc55b/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:11:33,889 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5480dc9d-43db-4a9d-a55a-a352cafcc55b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:11:33,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5480dc9d-43db-4a9d-a55a-a352cafcc55b/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 20:11:34,142 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-02 20:11:34,145 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 20:11:34,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-02 20:11:34,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:11:34,710 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-02 20:11:34,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:11:34,748 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-02 20:11:34,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:11:34,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:11:34,796 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:11:34,799 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-02 20:11:34,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:11:34,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:11:34,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-02 20:11:34,855 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-02 20:11:34,856 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2022-11-02 20:11:34,898 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-11-02 20:11:34,899 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:11:34,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265418871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:11:34,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 20:11:34,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 16 [2022-11-02 20:11:34,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505176877] [2022-11-02 20:11:34,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:11:34,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 20:11:34,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:11:34,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 20:11:34,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-11-02 20:11:34,909 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 489 out of 596 [2022-11-02 20:11:34,913 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 545 places, 553 transitions, 1297 flow. Second operand has 7 states, 7 states have (on average 492.85714285714283) internal successors, (3450), 7 states have internal predecessors, (3450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 20:11:34,913 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 20:11:34,914 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 489 of 596 [2022-11-02 20:11:34,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand