./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-word-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6932e9f2-b7bb-435a-877c-ff48755b294f/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6932e9f2-b7bb-435a-877c-ff48755b294f/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6932e9f2-b7bb-435a-877c-ff48755b294f/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6932e9f2-b7bb-435a-877c-ff48755b294f/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-word-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6932e9f2-b7bb-435a-877c-ff48755b294f/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6932e9f2-b7bb-435a-877c-ff48755b294f/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 73462fb8dbdc39f07edabdd79150cbad579fbba379eb033cd2e89802bbb8b9a6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:06:59,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:06:59,351 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:06:59,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:06:59,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:06:59,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:06:59,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:06:59,405 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:06:59,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:06:59,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:06:59,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:06:59,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:06:59,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:06:59,419 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:06:59,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:06:59,422 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:06:59,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:06:59,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:06:59,431 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:06:59,436 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:06:59,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:06:59,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:06:59,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:06:59,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:06:59,448 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:06:59,449 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:06:59,449 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:06:59,451 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:06:59,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:06:59,453 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:06:59,453 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:06:59,454 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:06:59,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:06:59,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:06:59,466 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:06:59,466 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:06:59,467 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:06:59,467 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:06:59,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:06:59,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:06:59,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:06:59,474 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6932e9f2-b7bb-435a-877c-ff48755b294f/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:06:59,521 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:06:59,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:06:59,522 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:06:59,522 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:06:59,523 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:06:59,523 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:06:59,524 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:06:59,524 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:06:59,525 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:06:59,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:06:59,525 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:06:59,526 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:06:59,526 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:06:59,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:06:59,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:06:59,531 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:06:59,531 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:06:59,531 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:06:59,531 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:06:59,532 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:06:59,532 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:06:59,532 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:06:59,533 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:06:59,533 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:06:59,534 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:06:59,534 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:06:59,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:06:59,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:06:59,537 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:06:59,537 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:06:59,538 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:06:59,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:06:59,539 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:06:59,539 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:06:59,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:06:59,540 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_6932e9f2-b7bb-435a-877c-ff48755b294f/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6932e9f2-b7bb-435a-877c-ff48755b294f/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73462fb8dbdc39f07edabdd79150cbad579fbba379eb033cd2e89802bbb8b9a6 [2022-11-16 12:06:59,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:06:59,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:06:59,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:06:59,909 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:06:59,910 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:06:59,912 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6932e9f2-b7bb-435a-877c-ff48755b294f/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/weaver/chl-word-trans.wvr.c [2022-11-16 12:06:59,992 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6932e9f2-b7bb-435a-877c-ff48755b294f/bin/uautomizer-tPACEb0tL8/data/5c6dd9f84/0dadd1b4160444b99c06653836ea2ce4/FLAG63de03e95 [2022-11-16 12:07:00,480 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:07:00,481 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6932e9f2-b7bb-435a-877c-ff48755b294f/sv-benchmarks/c/weaver/chl-word-trans.wvr.c [2022-11-16 12:07:00,488 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6932e9f2-b7bb-435a-877c-ff48755b294f/bin/uautomizer-tPACEb0tL8/data/5c6dd9f84/0dadd1b4160444b99c06653836ea2ce4/FLAG63de03e95 [2022-11-16 12:07:00,850 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6932e9f2-b7bb-435a-877c-ff48755b294f/bin/uautomizer-tPACEb0tL8/data/5c6dd9f84/0dadd1b4160444b99c06653836ea2ce4 [2022-11-16 12:07:00,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:07:00,856 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:07:00,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:07:00,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:07:00,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:07:00,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:07:00" (1/1) ... [2022-11-16 12:07:00,867 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ef2c027 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:07:00, skipping insertion in model container [2022-11-16 12:07:00,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:07:00" (1/1) ... [2022-11-16 12:07:00,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:07:00,908 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:07:01,247 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6932e9f2-b7bb-435a-877c-ff48755b294f/sv-benchmarks/c/weaver/chl-word-trans.wvr.c[3292,3305] [2022-11-16 12:07:01,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:07:01,265 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:07:01,313 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6932e9f2-b7bb-435a-877c-ff48755b294f/sv-benchmarks/c/weaver/chl-word-trans.wvr.c[3292,3305] [2022-11-16 12:07:01,318 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:07:01,334 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:07:01,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:07:01 WrapperNode [2022-11-16 12:07:01,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:07:01,336 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:07:01,336 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:07:01,336 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:07:01,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:07:01" (1/1) ... [2022-11-16 12:07:01,358 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:07:01" (1/1) ... [2022-11-16 12:07:01,389 INFO L138 Inliner]: procedures = 25, calls = 44, calls flagged for inlining = 8, calls inlined = 12, statements flattened = 264 [2022-11-16 12:07:01,390 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:07:01,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:07:01,391 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:07:01,391 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:07:01,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:07:01" (1/1) ... [2022-11-16 12:07:01,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:07:01" (1/1) ... [2022-11-16 12:07:01,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:07:01" (1/1) ... [2022-11-16 12:07:01,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:07:01" (1/1) ... [2022-11-16 12:07:01,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:07:01" (1/1) ... [2022-11-16 12:07:01,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:07:01" (1/1) ... [2022-11-16 12:07:01,434 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:07:01" (1/1) ... [2022-11-16 12:07:01,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:07:01" (1/1) ... [2022-11-16 12:07:01,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:07:01,443 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:07:01,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:07:01,443 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:07:01,444 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:07:01" (1/1) ... [2022-11-16 12:07:01,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:07:01,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6932e9f2-b7bb-435a-877c-ff48755b294f/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:07:01,475 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6932e9f2-b7bb-435a-877c-ff48755b294f/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:07:01,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6932e9f2-b7bb-435a-877c-ff48755b294f/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:07:01,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:07:01,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:07:01,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:07:01,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:07:01,546 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 12:07:01,548 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 12:07:01,548 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 12:07:01,548 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 12:07:01,549 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-16 12:07:01,549 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-16 12:07:01,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:07:01,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:07:01,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:07:01,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:07:01,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:07:01,551 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:07:01,738 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:07:01,741 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:07:02,744 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:07:02,757 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:07:02,758 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-16 12:07:02,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:07:02 BoogieIcfgContainer [2022-11-16 12:07:02,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:07:02,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:07:02,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:07:02,767 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:07:02,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:07:00" (1/3) ... [2022-11-16 12:07:02,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36bbd02a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:07:02, skipping insertion in model container [2022-11-16 12:07:02,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:07:01" (2/3) ... [2022-11-16 12:07:02,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36bbd02a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:07:02, skipping insertion in model container [2022-11-16 12:07:02,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:07:02" (3/3) ... [2022-11-16 12:07:02,771 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-trans.wvr.c [2022-11-16 12:07:02,781 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:07:02,793 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:07:02,794 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 78 error locations. [2022-11-16 12:07:02,794 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:07:02,929 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-16 12:07:03,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 636 places, 659 transitions, 1342 flow [2022-11-16 12:07:03,382 INFO L130 PetriNetUnfolder]: 33/656 cut-off events. [2022-11-16 12:07:03,383 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 12:07:03,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 669 conditions, 656 events. 33/656 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1728 event pairs, 0 based on Foata normal form. 0/545 useless extension candidates. Maximal degree in co-relation 481. Up to 3 conditions per place. [2022-11-16 12:07:03,401 INFO L82 GeneralOperation]: Start removeDead. Operand has 636 places, 659 transitions, 1342 flow [2022-11-16 12:07:03,419 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 611 places, 632 transitions, 1282 flow [2022-11-16 12:07:03,441 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:07:03,450 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;@5de477ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:07:03,450 INFO L358 AbstractCegarLoop]: Starting to check reachability of 138 error locations. [2022-11-16 12:07:03,455 INFO L130 PetriNetUnfolder]: 0/31 cut-off events. [2022-11-16 12:07:03,455 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:07:03,456 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:07:03,456 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:07:03,457 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-16 12:07:03,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:07:03,465 INFO L85 PathProgramCache]: Analyzing trace with hash -2133847270, now seen corresponding path program 1 times [2022-11-16 12:07:03,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:07:03,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135111322] [2022-11-16 12:07:03,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:07:03,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:07:03,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:03,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:07:03,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:07:03,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135111322] [2022-11-16 12:07:03,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135111322] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:07:03,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:07:03,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:07:03,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361893529] [2022-11-16 12:07:03,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:07:03,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:07:03,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:07:03,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:07:03,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:07:03,855 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 659 [2022-11-16 12:07:03,864 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 611 places, 632 transitions, 1282 flow. Second operand has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:03,865 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:07:03,865 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 659 [2022-11-16 12:07:03,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:07:04,943 INFO L130 PetriNetUnfolder]: 134/1888 cut-off events. [2022-11-16 12:07:04,945 INFO L131 PetriNetUnfolder]: For 60/60 co-relation queries the response was YES. [2022-11-16 12:07:04,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2081 conditions, 1888 events. 134/1888 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 12641 event pairs, 60 based on Foata normal form. 83/1576 useless extension candidates. Maximal degree in co-relation 1520. Up to 142 conditions per place. [2022-11-16 12:07:05,027 INFO L137 encePairwiseOnDemand]: 644/659 looper letters, 21 selfloop transitions, 2 changer transitions 6/619 dead transitions. [2022-11-16 12:07:05,071 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 612 places, 619 transitions, 1302 flow [2022-11-16 12:07:05,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:07:05,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:07:05,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1899 transitions. [2022-11-16 12:07:05,099 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.960546282245827 [2022-11-16 12:07:05,100 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1899 transitions. [2022-11-16 12:07:05,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1899 transitions. [2022-11-16 12:07:05,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:07:05,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1899 transitions. [2022-11-16 12:07:05,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 633.0) internal successors, (1899), 3 states have internal predecessors, (1899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:05,136 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:05,140 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:05,142 INFO L175 Difference]: Start difference. First operand has 611 places, 632 transitions, 1282 flow. Second operand 3 states and 1899 transitions. [2022-11-16 12:07:05,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 612 places, 619 transitions, 1302 flow [2022-11-16 12:07:05,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 606 places, 619 transitions, 1290 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-16 12:07:05,170 INFO L231 Difference]: Finished difference. Result has 606 places, 613 transitions, 1236 flow [2022-11-16 12:07:05,174 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=659, PETRI_DIFFERENCE_MINUEND_FLOW=1244, PETRI_DIFFERENCE_MINUEND_PLACES=604, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=619, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=617, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1236, PETRI_PLACES=606, PETRI_TRANSITIONS=613} [2022-11-16 12:07:05,179 INFO L288 CegarLoopForPetriNet]: 611 programPoint places, -5 predicate places. [2022-11-16 12:07:05,180 INFO L495 AbstractCegarLoop]: Abstraction has has 606 places, 613 transitions, 1236 flow [2022-11-16 12:07:05,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:05,182 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:07:05,182 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:07:05,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:07:05,183 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-16 12:07:05,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:07:05,184 INFO L85 PathProgramCache]: Analyzing trace with hash 429802424, now seen corresponding path program 1 times [2022-11-16 12:07:05,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:07:05,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113611751] [2022-11-16 12:07:05,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:07:05,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:07:05,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:05,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:07:05,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:07:05,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113611751] [2022-11-16 12:07:05,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113611751] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:07:05,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:07:05,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:07:05,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472088664] [2022-11-16 12:07:05,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:07:05,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:07:05,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:07:05,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:07:05,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:07:05,312 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 659 [2022-11-16 12:07:05,315 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 606 places, 613 transitions, 1236 flow. Second operand has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:05,315 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:07:05,316 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 659 [2022-11-16 12:07:05,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:07:06,125 INFO L130 PetriNetUnfolder]: 222/2276 cut-off events. [2022-11-16 12:07:06,125 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-11-16 12:07:06,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2595 conditions, 2276 events. 222/2276 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 17576 event pairs, 132 based on Foata normal form. 0/1806 useless extension candidates. Maximal degree in co-relation 2555. Up to 256 conditions per place. [2022-11-16 12:07:06,214 INFO L137 encePairwiseOnDemand]: 656/659 looper letters, 21 selfloop transitions, 2 changer transitions 0/612 dead transitions. [2022-11-16 12:07:06,215 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 601 places, 612 transitions, 1280 flow [2022-11-16 12:07:06,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:07:06,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:07:06,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1887 transitions. [2022-11-16 12:07:06,221 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9544764795144158 [2022-11-16 12:07:06,222 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1887 transitions. [2022-11-16 12:07:06,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1887 transitions. [2022-11-16 12:07:06,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:07:06,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1887 transitions. [2022-11-16 12:07:06,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 629.0) internal successors, (1887), 3 states have internal predecessors, (1887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:06,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:06,238 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:06,238 INFO L175 Difference]: Start difference. First operand has 606 places, 613 transitions, 1236 flow. Second operand 3 states and 1887 transitions. [2022-11-16 12:07:06,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 601 places, 612 transitions, 1280 flow [2022-11-16 12:07:06,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 599 places, 612 transitions, 1276 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:07:06,255 INFO L231 Difference]: Finished difference. Result has 599 places, 612 transitions, 1234 flow [2022-11-16 12:07:06,256 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=659, PETRI_DIFFERENCE_MINUEND_FLOW=1230, PETRI_DIFFERENCE_MINUEND_PLACES=597, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=612, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=610, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1234, PETRI_PLACES=599, PETRI_TRANSITIONS=612} [2022-11-16 12:07:06,257 INFO L288 CegarLoopForPetriNet]: 611 programPoint places, -12 predicate places. [2022-11-16 12:07:06,257 INFO L495 AbstractCegarLoop]: Abstraction has has 599 places, 612 transitions, 1234 flow [2022-11-16 12:07:06,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:06,260 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:07:06,260 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:07:06,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:07:06,261 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-16 12:07:06,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:07:06,261 INFO L85 PathProgramCache]: Analyzing trace with hash 184825244, now seen corresponding path program 1 times [2022-11-16 12:07:06,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:07:06,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765204591] [2022-11-16 12:07:06,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:07:06,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:07:06,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:06,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:07:06,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:07:06,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765204591] [2022-11-16 12:07:06,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765204591] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:07:06,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:07:06,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:07:06,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40635542] [2022-11-16 12:07:06,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:07:06,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:07:06,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:07:06,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:07:06,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:07:06,401 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 659 [2022-11-16 12:07:06,404 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 599 places, 612 transitions, 1234 flow. Second operand has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:06,405 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:07:06,405 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 659 [2022-11-16 12:07:06,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:07:07,398 INFO L130 PetriNetUnfolder]: 236/2539 cut-off events. [2022-11-16 12:07:07,398 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-11-16 12:07:07,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2804 conditions, 2539 events. 236/2539 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 20244 event pairs, 132 based on Foata normal form. 0/2015 useless extension candidates. Maximal degree in co-relation 2757. Up to 250 conditions per place. [2022-11-16 12:07:07,465 INFO L137 encePairwiseOnDemand]: 656/659 looper letters, 21 selfloop transitions, 2 changer transitions 0/611 dead transitions. [2022-11-16 12:07:07,466 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 600 places, 611 transitions, 1278 flow [2022-11-16 12:07:07,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:07:07,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:07:07,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1887 transitions. [2022-11-16 12:07:07,473 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9544764795144158 [2022-11-16 12:07:07,473 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1887 transitions. [2022-11-16 12:07:07,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1887 transitions. [2022-11-16 12:07:07,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:07:07,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1887 transitions. [2022-11-16 12:07:07,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 629.0) internal successors, (1887), 3 states have internal predecessors, (1887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:07,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:07,488 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:07,488 INFO L175 Difference]: Start difference. First operand has 599 places, 612 transitions, 1234 flow. Second operand 3 states and 1887 transitions. [2022-11-16 12:07:07,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 600 places, 611 transitions, 1278 flow [2022-11-16 12:07:07,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 598 places, 611 transitions, 1274 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:07:07,507 INFO L231 Difference]: Finished difference. Result has 598 places, 611 transitions, 1232 flow [2022-11-16 12:07:07,508 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=659, PETRI_DIFFERENCE_MINUEND_FLOW=1228, PETRI_DIFFERENCE_MINUEND_PLACES=596, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=611, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=609, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1232, PETRI_PLACES=598, PETRI_TRANSITIONS=611} [2022-11-16 12:07:07,511 INFO L288 CegarLoopForPetriNet]: 611 programPoint places, -13 predicate places. [2022-11-16 12:07:07,511 INFO L495 AbstractCegarLoop]: Abstraction has has 598 places, 611 transitions, 1232 flow [2022-11-16 12:07:07,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:07,513 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:07:07,514 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:07:07,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:07:07,514 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-16 12:07:07,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:07:07,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1889146799, now seen corresponding path program 1 times [2022-11-16 12:07:07,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:07:07,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715740176] [2022-11-16 12:07:07,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:07:07,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:07:07,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:07,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:07:07,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:07:07,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715740176] [2022-11-16 12:07:07,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715740176] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:07:07,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:07:07,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:07:07,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21272101] [2022-11-16 12:07:07,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:07:07,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:07:07,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:07:07,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:07:07,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:07:07,611 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 618 out of 659 [2022-11-16 12:07:07,615 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 598 places, 611 transitions, 1232 flow. Second operand has 3 states, 3 states have (on average 619.3333333333334) internal successors, (1858), 3 states have internal predecessors, (1858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:07,616 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:07:07,616 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 618 of 659 [2022-11-16 12:07:07,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:07:08,418 INFO L130 PetriNetUnfolder]: 134/1809 cut-off events. [2022-11-16 12:07:08,418 INFO L131 PetriNetUnfolder]: For 15/20 co-relation queries the response was YES. [2022-11-16 12:07:08,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1990 conditions, 1809 events. 134/1809 cut-off events. For 15/20 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 11866 event pairs, 60 based on Foata normal form. 0/1458 useless extension candidates. Maximal degree in co-relation 1936. Up to 160 conditions per place. [2022-11-16 12:07:08,480 INFO L137 encePairwiseOnDemand]: 656/659 looper letters, 24 selfloop transitions, 2 changer transitions 0/610 dead transitions. [2022-11-16 12:07:08,481 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 599 places, 610 transitions, 1282 flow [2022-11-16 12:07:08,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:07:08,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:07:08,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1881 transitions. [2022-11-16 12:07:08,487 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9514415781487102 [2022-11-16 12:07:08,488 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1881 transitions. [2022-11-16 12:07:08,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1881 transitions. [2022-11-16 12:07:08,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:07:08,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1881 transitions. [2022-11-16 12:07:08,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 627.0) internal successors, (1881), 3 states have internal predecessors, (1881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:08,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:08,505 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:08,506 INFO L175 Difference]: Start difference. First operand has 598 places, 611 transitions, 1232 flow. Second operand 3 states and 1881 transitions. [2022-11-16 12:07:08,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 599 places, 610 transitions, 1282 flow [2022-11-16 12:07:08,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 597 places, 610 transitions, 1278 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:07:08,522 INFO L231 Difference]: Finished difference. Result has 597 places, 610 transitions, 1230 flow [2022-11-16 12:07:08,524 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=659, PETRI_DIFFERENCE_MINUEND_FLOW=1226, PETRI_DIFFERENCE_MINUEND_PLACES=595, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=610, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=608, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1230, PETRI_PLACES=597, PETRI_TRANSITIONS=610} [2022-11-16 12:07:08,525 INFO L288 CegarLoopForPetriNet]: 611 programPoint places, -14 predicate places. [2022-11-16 12:07:08,525 INFO L495 AbstractCegarLoop]: Abstraction has has 597 places, 610 transitions, 1230 flow [2022-11-16 12:07:08,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 619.3333333333334) internal successors, (1858), 3 states have internal predecessors, (1858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:08,527 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:07:08,527 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:07:08,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:07:08,528 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-16 12:07:08,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:07:08,529 INFO L85 PathProgramCache]: Analyzing trace with hash -2039190172, now seen corresponding path program 1 times [2022-11-16 12:07:08,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:07:08,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379559720] [2022-11-16 12:07:08,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:07:08,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:07:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:08,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:07:08,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:07:08,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379559720] [2022-11-16 12:07:08,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379559720] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:07:08,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:07:08,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:07:08,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529729478] [2022-11-16 12:07:08,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:07:08,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:07:08,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:07:08,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:07:08,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:07:08,599 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 618 out of 659 [2022-11-16 12:07:08,603 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 597 places, 610 transitions, 1230 flow. Second operand has 3 states, 3 states have (on average 619.3333333333334) internal successors, (1858), 3 states have internal predecessors, (1858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:08,604 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:07:08,604 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 618 of 659 [2022-11-16 12:07:08,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:07:09,527 INFO L130 PetriNetUnfolder]: 272/2784 cut-off events. [2022-11-16 12:07:09,528 INFO L131 PetriNetUnfolder]: For 21/30 co-relation queries the response was YES. [2022-11-16 12:07:09,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3150 conditions, 2784 events. 272/2784 cut-off events. For 21/30 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 23337 event pairs, 132 based on Foata normal form. 0/2217 useless extension candidates. Maximal degree in co-relation 3089. Up to 303 conditions per place. [2022-11-16 12:07:09,613 INFO L137 encePairwiseOnDemand]: 656/659 looper letters, 24 selfloop transitions, 2 changer transitions 0/609 dead transitions. [2022-11-16 12:07:09,614 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 598 places, 609 transitions, 1280 flow [2022-11-16 12:07:09,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:07:09,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:07:09,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1881 transitions. [2022-11-16 12:07:09,619 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9514415781487102 [2022-11-16 12:07:09,619 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1881 transitions. [2022-11-16 12:07:09,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1881 transitions. [2022-11-16 12:07:09,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:07:09,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1881 transitions. [2022-11-16 12:07:09,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 627.0) internal successors, (1881), 3 states have internal predecessors, (1881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:09,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:09,632 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:09,633 INFO L175 Difference]: Start difference. First operand has 597 places, 610 transitions, 1230 flow. Second operand 3 states and 1881 transitions. [2022-11-16 12:07:09,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 598 places, 609 transitions, 1280 flow [2022-11-16 12:07:09,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 596 places, 609 transitions, 1276 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:07:09,645 INFO L231 Difference]: Finished difference. Result has 596 places, 609 transitions, 1228 flow [2022-11-16 12:07:09,646 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=659, PETRI_DIFFERENCE_MINUEND_FLOW=1224, PETRI_DIFFERENCE_MINUEND_PLACES=594, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=609, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=607, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1228, PETRI_PLACES=596, PETRI_TRANSITIONS=609} [2022-11-16 12:07:09,647 INFO L288 CegarLoopForPetriNet]: 611 programPoint places, -15 predicate places. [2022-11-16 12:07:09,647 INFO L495 AbstractCegarLoop]: Abstraction has has 596 places, 609 transitions, 1228 flow [2022-11-16 12:07:09,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 619.3333333333334) internal successors, (1858), 3 states have internal predecessors, (1858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:09,649 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:07:09,649 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:07:09,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:07:09,650 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-16 12:07:09,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:07:09,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1573152436, now seen corresponding path program 1 times [2022-11-16 12:07:09,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:07:09,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318811759] [2022-11-16 12:07:09,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:07:09,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:07:09,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:09,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:07:09,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:07:09,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318811759] [2022-11-16 12:07:09,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318811759] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:07:09,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:07:09,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:07:09,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275905658] [2022-11-16 12:07:09,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:07:09,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:07:09,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:07:09,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:07:09,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:07:09,773 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 618 out of 659 [2022-11-16 12:07:09,777 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 596 places, 609 transitions, 1228 flow. Second operand has 3 states, 3 states have (on average 619.3333333333334) internal successors, (1858), 3 states have internal predecessors, (1858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:09,777 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:07:09,778 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 618 of 659 [2022-11-16 12:07:09,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:07:10,607 INFO L130 PetriNetUnfolder]: 275/2568 cut-off events. [2022-11-16 12:07:10,608 INFO L131 PetriNetUnfolder]: For 71/75 co-relation queries the response was YES. [2022-11-16 12:07:10,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2902 conditions, 2568 events. 275/2568 cut-off events. For 71/75 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 19735 event pairs, 132 based on Foata normal form. 0/2064 useless extension candidates. Maximal degree in co-relation 2834. Up to 319 conditions per place. [2022-11-16 12:07:10,692 INFO L137 encePairwiseOnDemand]: 656/659 looper letters, 24 selfloop transitions, 2 changer transitions 0/608 dead transitions. [2022-11-16 12:07:10,692 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 597 places, 608 transitions, 1278 flow [2022-11-16 12:07:10,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:07:10,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:07:10,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1881 transitions. [2022-11-16 12:07:10,698 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9514415781487102 [2022-11-16 12:07:10,699 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1881 transitions. [2022-11-16 12:07:10,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1881 transitions. [2022-11-16 12:07:10,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:07:10,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1881 transitions. [2022-11-16 12:07:10,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 627.0) internal successors, (1881), 3 states have internal predecessors, (1881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:10,713 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:10,725 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:10,733 INFO L175 Difference]: Start difference. First operand has 596 places, 609 transitions, 1228 flow. Second operand 3 states and 1881 transitions. [2022-11-16 12:07:10,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 597 places, 608 transitions, 1278 flow [2022-11-16 12:07:10,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 595 places, 608 transitions, 1274 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:07:10,750 INFO L231 Difference]: Finished difference. Result has 595 places, 608 transitions, 1226 flow [2022-11-16 12:07:10,751 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=659, PETRI_DIFFERENCE_MINUEND_FLOW=1222, PETRI_DIFFERENCE_MINUEND_PLACES=593, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=608, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=606, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1226, PETRI_PLACES=595, PETRI_TRANSITIONS=608} [2022-11-16 12:07:10,754 INFO L288 CegarLoopForPetriNet]: 611 programPoint places, -16 predicate places. [2022-11-16 12:07:10,754 INFO L495 AbstractCegarLoop]: Abstraction has has 595 places, 608 transitions, 1226 flow [2022-11-16 12:07:10,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 619.3333333333334) internal successors, (1858), 3 states have internal predecessors, (1858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:10,756 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:07:10,757 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:07:10,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:07:10,757 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-16 12:07:10,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:07:10,758 INFO L85 PathProgramCache]: Analyzing trace with hash -2056347585, now seen corresponding path program 1 times [2022-11-16 12:07:10,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:07:10,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555085398] [2022-11-16 12:07:10,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:07:10,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:07:10,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:10,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:07:10,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:07:10,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555085398] [2022-11-16 12:07:10,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555085398] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:07:10,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:07:10,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:07:10,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278663820] [2022-11-16 12:07:10,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:07:10,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:07:10,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:07:10,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:07:10,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:07:10,829 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 659 [2022-11-16 12:07:10,832 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 595 places, 608 transitions, 1226 flow. Second operand has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:10,833 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:07:10,833 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 659 [2022-11-16 12:07:10,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:07:11,380 INFO L130 PetriNetUnfolder]: 96/1578 cut-off events. [2022-11-16 12:07:11,381 INFO L131 PetriNetUnfolder]: For 11/14 co-relation queries the response was YES. [2022-11-16 12:07:11,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1687 conditions, 1578 events. 96/1578 cut-off events. For 11/14 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 9617 event pairs, 32 based on Foata normal form. 0/1305 useless extension candidates. Maximal degree in co-relation 1611. Up to 91 conditions per place. [2022-11-16 12:07:11,416 INFO L137 encePairwiseOnDemand]: 653/659 looper letters, 17 selfloop transitions, 1 changer transitions 0/603 dead transitions. [2022-11-16 12:07:11,417 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 592 places, 603 transitions, 1252 flow [2022-11-16 12:07:11,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:07:11,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:07:11,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1886 transitions. [2022-11-16 12:07:11,421 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9539706626201315 [2022-11-16 12:07:11,422 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1886 transitions. [2022-11-16 12:07:11,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1886 transitions. [2022-11-16 12:07:11,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:07:11,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1886 transitions. [2022-11-16 12:07:11,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 628.6666666666666) internal successors, (1886), 3 states have internal predecessors, (1886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:11,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:11,432 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:11,432 INFO L175 Difference]: Start difference. First operand has 595 places, 608 transitions, 1226 flow. Second operand 3 states and 1886 transitions. [2022-11-16 12:07:11,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 592 places, 603 transitions, 1252 flow [2022-11-16 12:07:11,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 590 places, 603 transitions, 1248 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:07:11,443 INFO L231 Difference]: Finished difference. Result has 590 places, 603 transitions, 1214 flow [2022-11-16 12:07:11,444 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=659, PETRI_DIFFERENCE_MINUEND_FLOW=1212, PETRI_DIFFERENCE_MINUEND_PLACES=588, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=603, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=602, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1214, PETRI_PLACES=590, PETRI_TRANSITIONS=603} [2022-11-16 12:07:11,445 INFO L288 CegarLoopForPetriNet]: 611 programPoint places, -21 predicate places. [2022-11-16 12:07:11,445 INFO L495 AbstractCegarLoop]: Abstraction has has 590 places, 603 transitions, 1214 flow [2022-11-16 12:07:11,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:11,446 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:07:11,446 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:07:11,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:07:11,447 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-16 12:07:11,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:07:11,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1400651661, now seen corresponding path program 1 times [2022-11-16 12:07:11,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:07:11,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639276736] [2022-11-16 12:07:11,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:07:11,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:07:11,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:11,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:07:11,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:07:11,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639276736] [2022-11-16 12:07:11,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639276736] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:07:11,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:07:11,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:07:11,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639921700] [2022-11-16 12:07:11,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:07:11,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:07:11,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:07:11,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:07:11,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:07:11,512 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 659 [2022-11-16 12:07:11,514 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 590 places, 603 transitions, 1214 flow. Second operand has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:11,514 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:07:11,514 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 659 [2022-11-16 12:07:11,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:07:12,069 INFO L130 PetriNetUnfolder]: 146/1837 cut-off events. [2022-11-16 12:07:12,069 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2022-11-16 12:07:12,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2027 conditions, 1837 events. 146/1837 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 11554 event pairs, 60 based on Foata normal form. 0/1501 useless extension candidates. Maximal degree in co-relation 1952. Up to 170 conditions per place. [2022-11-16 12:07:12,132 INFO L137 encePairwiseOnDemand]: 656/659 looper letters, 21 selfloop transitions, 2 changer transitions 0/602 dead transitions. [2022-11-16 12:07:12,133 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 591 places, 602 transitions, 1258 flow [2022-11-16 12:07:12,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:07:12,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:07:12,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1887 transitions. [2022-11-16 12:07:12,137 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9544764795144158 [2022-11-16 12:07:12,138 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1887 transitions. [2022-11-16 12:07:12,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1887 transitions. [2022-11-16 12:07:12,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:07:12,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1887 transitions. [2022-11-16 12:07:12,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 629.0) internal successors, (1887), 3 states have internal predecessors, (1887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:12,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:12,148 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 659.0) internal successors, (2636), 4 states have internal predecessors, (2636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:12,148 INFO L175 Difference]: Start difference. First operand has 590 places, 603 transitions, 1214 flow. Second operand 3 states and 1887 transitions. [2022-11-16 12:07:12,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 591 places, 602 transitions, 1258 flow [2022-11-16 12:07:12,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 590 places, 602 transitions, 1257 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:07:12,159 INFO L231 Difference]: Finished difference. Result has 590 places, 602 transitions, 1215 flow [2022-11-16 12:07:12,160 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=659, PETRI_DIFFERENCE_MINUEND_FLOW=1211, PETRI_DIFFERENCE_MINUEND_PLACES=588, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=602, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=600, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1215, PETRI_PLACES=590, PETRI_TRANSITIONS=602} [2022-11-16 12:07:12,161 INFO L288 CegarLoopForPetriNet]: 611 programPoint places, -21 predicate places. [2022-11-16 12:07:12,161 INFO L495 AbstractCegarLoop]: Abstraction has has 590 places, 602 transitions, 1215 flow [2022-11-16 12:07:12,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:12,163 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:07:12,163 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:07:12,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:07:12,163 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 134 more)] === [2022-11-16 12:07:12,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:07:12,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1110689988, now seen corresponding path program 1 times [2022-11-16 12:07:12,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:07:12,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268426258] [2022-11-16 12:07:12,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:07:12,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:07:12,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:07:12,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:07:12,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:07:12,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268426258] [2022-11-16 12:07:12,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268426258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:07:12,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:07:12,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:07:12,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724256562] [2022-11-16 12:07:12,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:07:12,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:07:12,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:07:12,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:07:12,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:07:12,731 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 498 out of 659 [2022-11-16 12:07:12,736 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 590 places, 602 transitions, 1215 flow. Second operand has 6 states, 6 states have (on average 499.8333333333333) internal successors, (2999), 6 states have internal predecessors, (2999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:07:12,736 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:07:12,736 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 498 of 659 [2022-11-16 12:07:12,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand