./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/33_double_lock_p1_vs.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 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_ac9b6aa8-e2a2-4526-bec7-a229fc8c78e4/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac9b6aa8-e2a2-4526-bec7-a229fc8c78e4/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac9b6aa8-e2a2-4526-bec7-a229fc8c78e4/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac9b6aa8-e2a2-4526-bec7-a229fc8c78e4/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/33_double_lock_p1_vs.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac9b6aa8-e2a2-4526-bec7-a229fc8c78e4/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac9b6aa8-e2a2-4526-bec7-a229fc8c78e4/bin/uautomizer-vX5HgA9Q3a --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 3937112f59473340c79cc2d7ab59a9fe9e4faa83d54303e5490f5452d86b21aa --- 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-b5237d8 [2022-11-21 17:28:56,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:28:56,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:28:56,330 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:28:56,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:28:56,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:28:56,333 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:28:56,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:28:56,337 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:28:56,338 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:28:56,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:28:56,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:28:56,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:28:56,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:28:56,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:28:56,358 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:28:56,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:28:56,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:28:56,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:28:56,381 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:28:56,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:28:56,384 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:28:56,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:28:56,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:28:56,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:28:56,390 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:28:56,391 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:28:56,392 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:28:56,392 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:28:56,393 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:28:56,393 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:28:56,394 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:28:56,395 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:28:56,396 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:28:56,397 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:28:56,397 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:28:56,398 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:28:56,398 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:28:56,399 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:28:56,400 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:28:56,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:28:56,401 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac9b6aa8-e2a2-4526-bec7-a229fc8c78e4/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 17:28:56,432 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:28:56,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:28:56,443 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:28:56,443 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:28:56,444 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:28:56,444 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:28:56,445 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:28:56,445 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:28:56,446 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:28:56,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:28:56,447 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 17:28:56,447 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 17:28:56,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:28:56,448 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 17:28:56,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:28:56,448 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:28:56,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:28:56,449 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:28:56,449 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 17:28:56,449 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 17:28:56,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:28:56,450 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:28:56,450 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:28:56,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:28:56,450 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:28:56,451 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:28:56,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:28:56,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:28:56,451 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:28:56,452 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:28:56,452 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:28:56,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:28:56,453 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:28:56,453 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:28:56,453 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:28:56,453 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_ac9b6aa8-e2a2-4526-bec7-a229fc8c78e4/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac9b6aa8-e2a2-4526-bec7-a229fc8c78e4/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3937112f59473340c79cc2d7ab59a9fe9e4faa83d54303e5490f5452d86b21aa [2022-11-21 17:28:56,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:28:56,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:28:56,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:28:56,828 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:28:56,828 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:28:56,830 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac9b6aa8-e2a2-4526-bec7-a229fc8c78e4/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-ext/33_double_lock_p1_vs.i [2022-11-21 17:28:59,947 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:29:00,250 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:29:00,251 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac9b6aa8-e2a2-4526-bec7-a229fc8c78e4/sv-benchmarks/c/pthread-ext/33_double_lock_p1_vs.i [2022-11-21 17:29:00,263 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac9b6aa8-e2a2-4526-bec7-a229fc8c78e4/bin/uautomizer-vX5HgA9Q3a/data/e4bbbf4ae/caf6c51d384b4d4db1cc094cacf882f1/FLAG5c54dfc01 [2022-11-21 17:29:00,281 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac9b6aa8-e2a2-4526-bec7-a229fc8c78e4/bin/uautomizer-vX5HgA9Q3a/data/e4bbbf4ae/caf6c51d384b4d4db1cc094cacf882f1 [2022-11-21 17:29:00,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:29:00,289 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:29:00,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:29:00,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:29:00,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:29:00,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:29:00" (1/1) ... [2022-11-21 17:29:00,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5536159a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:00, skipping insertion in model container [2022-11-21 17:29:00,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:29:00" (1/1) ... [2022-11-21 17:29:00,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:29:00,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:29:00,734 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac9b6aa8-e2a2-4526-bec7-a229fc8c78e4/sv-benchmarks/c/pthread-ext/33_double_lock_p1_vs.i[30807,30820] [2022-11-21 17:29:00,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:29:00,759 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:29:00,829 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac9b6aa8-e2a2-4526-bec7-a229fc8c78e4/sv-benchmarks/c/pthread-ext/33_double_lock_p1_vs.i[30807,30820] [2022-11-21 17:29:00,843 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:29:00,890 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:29:00,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:00 WrapperNode [2022-11-21 17:29:00,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:29:00,892 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:29:00,892 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:29:00,893 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:29:00,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:00" (1/1) ... [2022-11-21 17:29:00,933 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:00" (1/1) ... [2022-11-21 17:29:00,993 INFO L138 Inliner]: procedures = 175, calls = 36, calls flagged for inlining = 18, calls inlined = 24, statements flattened = 281 [2022-11-21 17:29:00,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:29:00,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:29:00,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:29:00,995 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:29:01,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:00" (1/1) ... [2022-11-21 17:29:01,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:00" (1/1) ... [2022-11-21 17:29:01,023 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:00" (1/1) ... [2022-11-21 17:29:01,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:00" (1/1) ... [2022-11-21 17:29:01,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:00" (1/1) ... [2022-11-21 17:29:01,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:00" (1/1) ... [2022-11-21 17:29:01,075 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:00" (1/1) ... [2022-11-21 17:29:01,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:00" (1/1) ... [2022-11-21 17:29:01,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:29:01,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:29:01,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:29:01,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:29:01,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:00" (1/1) ... [2022-11-21 17:29:01,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:29:01,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac9b6aa8-e2a2-4526-bec7-a229fc8c78e4/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:01,172 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac9b6aa8-e2a2-4526-bec7-a229fc8c78e4/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:01,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac9b6aa8-e2a2-4526-bec7-a229fc8c78e4/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:29:01,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 17:29:01,235 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-11-21 17:29:01,236 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-11-21 17:29:01,236 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-21 17:29:01,238 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-21 17:29:01,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 17:29:01,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:29:01,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 17:29:01,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 17:29:01,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:29:01,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:29:01,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:29:01,243 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 17:29:01,424 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:29:01,427 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:29:02,132 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:29:02,601 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:29:02,602 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-21 17:29:02,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:29:02 BoogieIcfgContainer [2022-11-21 17:29:02,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:29:02,611 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:29:02,612 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:29:02,616 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:29:02,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:29:00" (1/3) ... [2022-11-21 17:29:02,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ba87b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:29:02, skipping insertion in model container [2022-11-21 17:29:02,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:00" (2/3) ... [2022-11-21 17:29:02,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10ba87b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:29:02, skipping insertion in model container [2022-11-21 17:29:02,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:29:02" (3/3) ... [2022-11-21 17:29:02,622 INFO L112 eAbstractionObserver]: Analyzing ICFG 33_double_lock_p1_vs.i [2022-11-21 17:29:02,633 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 17:29:02,646 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:29:02,646 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-11-21 17:29:02,647 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 17:29:02,767 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 17:29:02,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 108 places, 108 transitions, 226 flow [2022-11-21 17:29:02,898 INFO L130 PetriNetUnfolder]: 7/118 cut-off events. [2022-11-21 17:29:02,898 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 17:29:02,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 118 events. 7/118 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 316 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 97. Up to 4 conditions per place. [2022-11-21 17:29:02,908 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 108 transitions, 226 flow [2022-11-21 17:29:02,913 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 107 transitions, 222 flow [2022-11-21 17:29:02,924 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:29:02,937 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;@4cecc995, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:29:02,937 INFO L358 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2022-11-21 17:29:02,946 INFO L130 PetriNetUnfolder]: 2/31 cut-off events. [2022-11-21 17:29:02,946 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 17:29:02,946 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:29:02,947 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] [2022-11-21 17:29:02,948 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-21 17:29:02,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:02,954 INFO L85 PathProgramCache]: Analyzing trace with hash 2138361761, now seen corresponding path program 1 times [2022-11-21 17:29:02,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:29:02,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98470974] [2022-11-21 17:29:02,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:29:02,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:29:03,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:03,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:29:03,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:29:03,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98470974] [2022-11-21 17:29:03,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98470974] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:29:03,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:29:03,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-21 17:29:03,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572413067] [2022-11-21 17:29:03,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:29:03,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 17:29:03,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:29:03,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 17:29:03,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 17:29:03,582 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 108 [2022-11-21 17:29:03,585 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 107 transitions, 222 flow. Second operand has 2 states, 2 states have (on average 65.0) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:03,586 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:29:03,586 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 108 [2022-11-21 17:29:03,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:29:03,800 INFO L130 PetriNetUnfolder]: 54/203 cut-off events. [2022-11-21 17:29:03,800 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-21 17:29:03,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 312 conditions, 203 events. 54/203 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 737 event pairs, 35 based on Foata normal form. 74/249 useless extension candidates. Maximal degree in co-relation 281. Up to 95 conditions per place. [2022-11-21 17:29:03,810 INFO L137 encePairwiseOnDemand]: 79/108 looper letters, 14 selfloop transitions, 0 changer transitions 0/70 dead transitions. [2022-11-21 17:29:03,810 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 70 transitions, 176 flow [2022-11-21 17:29:03,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 17:29:03,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-21 17:29:03,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 171 transitions. [2022-11-21 17:29:03,827 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7916666666666666 [2022-11-21 17:29:03,828 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 171 transitions. [2022-11-21 17:29:03,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 171 transitions. [2022-11-21 17:29:03,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:29:03,833 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 171 transitions. [2022-11-21 17:29:03,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 85.5) internal successors, (171), 2 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:03,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:03,845 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:03,847 INFO L175 Difference]: Start difference. First operand has 107 places, 107 transitions, 222 flow. Second operand 2 states and 171 transitions. [2022-11-21 17:29:03,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 70 transitions, 176 flow [2022-11-21 17:29:03,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 70 transitions, 175 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 17:29:03,856 INFO L231 Difference]: Finished difference. Result has 73 places, 70 transitions, 147 flow [2022-11-21 17:29:03,858 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=147, PETRI_PLACES=73, PETRI_TRANSITIONS=70} [2022-11-21 17:29:03,866 INFO L288 CegarLoopForPetriNet]: 107 programPoint places, -34 predicate places. [2022-11-21 17:29:03,867 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 70 transitions, 147 flow [2022-11-21 17:29:03,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 65.0) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:03,868 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:29:03,868 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] [2022-11-21 17:29:03,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 17:29:03,869 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-21 17:29:03,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:03,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1971315108, now seen corresponding path program 1 times [2022-11-21 17:29:03,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:29:03,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690089407] [2022-11-21 17:29:03,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:29:03,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:29:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:03,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:29:03,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:29:03,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690089407] [2022-11-21 17:29:03,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690089407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:29:03,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:29:03,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 17:29:03,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071609881] [2022-11-21 17:29:03,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:29:03,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:29:03,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:29:03,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:29:03,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:29:03,963 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 108 [2022-11-21 17:29:03,964 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 70 transitions, 147 flow. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:03,965 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:29:03,965 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 108 [2022-11-21 17:29:03,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:29:04,186 INFO L130 PetriNetUnfolder]: 146/428 cut-off events. [2022-11-21 17:29:04,187 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-11-21 17:29:04,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 737 conditions, 428 events. 146/428 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2109 event pairs, 38 based on Foata normal form. 0/382 useless extension candidates. Maximal degree in co-relation 733. Up to 148 conditions per place. [2022-11-21 17:29:04,192 INFO L137 encePairwiseOnDemand]: 98/108 looper letters, 29 selfloop transitions, 8 changer transitions 0/87 dead transitions. [2022-11-21 17:29:04,193 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 87 transitions, 258 flow [2022-11-21 17:29:04,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:29:04,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 17:29:04,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 213 transitions. [2022-11-21 17:29:04,201 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6574074074074074 [2022-11-21 17:29:04,202 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 213 transitions. [2022-11-21 17:29:04,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 213 transitions. [2022-11-21 17:29:04,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:29:04,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 213 transitions. [2022-11-21 17:29:04,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:04,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:04,207 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:04,208 INFO L175 Difference]: Start difference. First operand has 73 places, 70 transitions, 147 flow. Second operand 3 states and 213 transitions. [2022-11-21 17:29:04,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 87 transitions, 258 flow [2022-11-21 17:29:04,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 87 transitions, 258 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 17:29:04,211 INFO L231 Difference]: Finished difference. Result has 77 places, 78 transitions, 215 flow [2022-11-21 17:29:04,212 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=215, PETRI_PLACES=77, PETRI_TRANSITIONS=78} [2022-11-21 17:29:04,213 INFO L288 CegarLoopForPetriNet]: 107 programPoint places, -30 predicate places. [2022-11-21 17:29:04,213 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 78 transitions, 215 flow [2022-11-21 17:29:04,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:04,214 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:29:04,214 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:29:04,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 17:29:04,215 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 50 more)] === [2022-11-21 17:29:04,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:04,216 INFO L85 PathProgramCache]: Analyzing trace with hash -440856262, now seen corresponding path program 1 times [2022-11-21 17:29:04,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:29:04,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869010930] [2022-11-21 17:29:04,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:29:04,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:29:04,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:29:04,264 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:29:04,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:29:04,320 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:29:04,320 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 17:29:04,322 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (53 of 54 remaining) [2022-11-21 17:29:04,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (52 of 54 remaining) [2022-11-21 17:29:04,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (51 of 54 remaining) [2022-11-21 17:29:04,326 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (50 of 54 remaining) [2022-11-21 17:29:04,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (49 of 54 remaining) [2022-11-21 17:29:04,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (48 of 54 remaining) [2022-11-21 17:29:04,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (47 of 54 remaining) [2022-11-21 17:29:04,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (46 of 54 remaining) [2022-11-21 17:29:04,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (45 of 54 remaining) [2022-11-21 17:29:04,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (44 of 54 remaining) [2022-11-21 17:29:04,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (43 of 54 remaining) [2022-11-21 17:29:04,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (42 of 54 remaining) [2022-11-21 17:29:04,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (41 of 54 remaining) [2022-11-21 17:29:04,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (40 of 54 remaining) [2022-11-21 17:29:04,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (39 of 54 remaining) [2022-11-21 17:29:04,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (38 of 54 remaining) [2022-11-21 17:29:04,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (37 of 54 remaining) [2022-11-21 17:29:04,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (36 of 54 remaining) [2022-11-21 17:29:04,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (35 of 54 remaining) [2022-11-21 17:29:04,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (34 of 54 remaining) [2022-11-21 17:29:04,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (33 of 54 remaining) [2022-11-21 17:29:04,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (32 of 54 remaining) [2022-11-21 17:29:04,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 54 remaining) [2022-11-21 17:29:04,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 54 remaining) [2022-11-21 17:29:04,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (29 of 54 remaining) [2022-11-21 17:29:04,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (28 of 54 remaining) [2022-11-21 17:29:04,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (27 of 54 remaining) [2022-11-21 17:29:04,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 54 remaining) [2022-11-21 17:29:04,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (25 of 54 remaining) [2022-11-21 17:29:04,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (24 of 54 remaining) [2022-11-21 17:29:04,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (23 of 54 remaining) [2022-11-21 17:29:04,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (22 of 54 remaining) [2022-11-21 17:29:04,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (21 of 54 remaining) [2022-11-21 17:29:04,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (20 of 54 remaining) [2022-11-21 17:29:04,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (19 of 54 remaining) [2022-11-21 17:29:04,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (18 of 54 remaining) [2022-11-21 17:29:04,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (17 of 54 remaining) [2022-11-21 17:29:04,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (16 of 54 remaining) [2022-11-21 17:29:04,347 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (15 of 54 remaining) [2022-11-21 17:29:04,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (14 of 54 remaining) [2022-11-21 17:29:04,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (13 of 54 remaining) [2022-11-21 17:29:04,348 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (12 of 54 remaining) [2022-11-21 17:29:04,349 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (11 of 54 remaining) [2022-11-21 17:29:04,349 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (10 of 54 remaining) [2022-11-21 17:29:04,349 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (9 of 54 remaining) [2022-11-21 17:29:04,349 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 54 remaining) [2022-11-21 17:29:04,350 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 54 remaining) [2022-11-21 17:29:04,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 54 remaining) [2022-11-21 17:29:04,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 54 remaining) [2022-11-21 17:29:04,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (4 of 54 remaining) [2022-11-21 17:29:04,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (3 of 54 remaining) [2022-11-21 17:29:04,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (2 of 54 remaining) [2022-11-21 17:29:04,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (1 of 54 remaining) [2022-11-21 17:29:04,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (0 of 54 remaining) [2022-11-21 17:29:04,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 17:29:04,358 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-21 17:29:04,362 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-21 17:29:04,362 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-21 17:29:04,507 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 17:29:04,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 176 transitions, 376 flow [2022-11-21 17:29:04,556 INFO L130 PetriNetUnfolder]: 9/168 cut-off events. [2022-11-21 17:29:04,556 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-21 17:29:04,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 168 events. 9/168 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 552 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 177. Up to 6 conditions per place. [2022-11-21 17:29:04,559 INFO L82 GeneralOperation]: Start removeDead. Operand has 175 places, 176 transitions, 376 flow [2022-11-21 17:29:04,563 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 144 transitions, 303 flow [2022-11-21 17:29:04,564 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:29:04,569 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;@4cecc995, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:29:04,569 INFO L358 AbstractCegarLoop]: Starting to check reachability of 80 error locations. [2022-11-21 17:29:04,579 INFO L130 PetriNetUnfolder]: 2/32 cut-off events. [2022-11-21 17:29:04,579 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 17:29:04,579 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:29:04,579 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] [2022-11-21 17:29:04,580 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2022-11-21 17:29:04,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:04,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1504932562, now seen corresponding path program 1 times [2022-11-21 17:29:04,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:29:04,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922033683] [2022-11-21 17:29:04,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:29:04,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:29:04,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:04,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:29:04,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:29:04,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922033683] [2022-11-21 17:29:04,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922033683] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:29:04,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:29:04,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-21 17:29:04,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247891506] [2022-11-21 17:29:04,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:29:04,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 17:29:04,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:29:04,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 17:29:04,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 17:29:04,798 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 176 [2022-11-21 17:29:04,799 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 144 transitions, 303 flow. Second operand has 2 states, 2 states have (on average 91.0) internal successors, (182), 2 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:04,799 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:29:04,799 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 176 [2022-11-21 17:29:04,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:29:05,391 INFO L130 PetriNetUnfolder]: 882/1660 cut-off events. [2022-11-21 17:29:05,392 INFO L131 PetriNetUnfolder]: For 141/141 co-relation queries the response was YES. [2022-11-21 17:29:05,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3076 conditions, 1660 events. 882/1660 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 10439 event pairs, 719 based on Foata normal form. 718/2326 useless extension candidates. Maximal degree in co-relation 3044. Up to 1265 conditions per place. [2022-11-21 17:29:05,412 INFO L137 encePairwiseOnDemand]: 131/176 looper letters, 23 selfloop transitions, 0 changer transitions 0/91 dead transitions. [2022-11-21 17:29:05,412 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 91 transitions, 243 flow [2022-11-21 17:29:05,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 17:29:05,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-21 17:29:05,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 248 transitions. [2022-11-21 17:29:05,415 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7045454545454546 [2022-11-21 17:29:05,415 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 248 transitions. [2022-11-21 17:29:05,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 248 transitions. [2022-11-21 17:29:05,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:29:05,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 248 transitions. [2022-11-21 17:29:05,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 124.0) internal successors, (248), 2 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:05,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:05,419 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:05,419 INFO L175 Difference]: Start difference. First operand has 145 places, 144 transitions, 303 flow. Second operand 2 states and 248 transitions. [2022-11-21 17:29:05,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 91 transitions, 243 flow [2022-11-21 17:29:05,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 91 transitions, 240 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-11-21 17:29:05,424 INFO L231 Difference]: Finished difference. Result has 95 places, 91 transitions, 194 flow [2022-11-21 17:29:05,425 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=194, PETRI_PLACES=95, PETRI_TRANSITIONS=91} [2022-11-21 17:29:05,428 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, -50 predicate places. [2022-11-21 17:29:05,428 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 91 transitions, 194 flow [2022-11-21 17:29:05,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 91.0) internal successors, (182), 2 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:05,428 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:29:05,429 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] [2022-11-21 17:29:05,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 17:29:05,429 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2022-11-21 17:29:05,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:05,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1163749611, now seen corresponding path program 1 times [2022-11-21 17:29:05,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:29:05,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585657450] [2022-11-21 17:29:05,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:29:05,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:29:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:05,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:29:05,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:29:05,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585657450] [2022-11-21 17:29:05,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585657450] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:29:05,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:29:05,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 17:29:05,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481074083] [2022-11-21 17:29:05,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:29:05,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:29:05,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:29:05,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:29:05,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:29:05,471 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 176 [2022-11-21 17:29:05,472 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 91 transitions, 194 flow. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:05,472 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:29:05,472 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 176 [2022-11-21 17:29:05,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:29:06,871 INFO L130 PetriNetUnfolder]: 3025/5723 cut-off events. [2022-11-21 17:29:06,871 INFO L131 PetriNetUnfolder]: For 442/442 co-relation queries the response was YES. [2022-11-21 17:29:06,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10601 conditions, 5723 events. 3025/5723 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 405. Compared 44987 event pairs, 910 based on Foata normal form. 0/5236 useless extension candidates. Maximal degree in co-relation 10596. Up to 2663 conditions per place. [2022-11-21 17:29:06,938 INFO L137 encePairwiseOnDemand]: 162/176 looper letters, 43 selfloop transitions, 12 changer transitions 0/117 dead transitions. [2022-11-21 17:29:06,938 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 117 transitions, 364 flow [2022-11-21 17:29:06,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:29:06,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 17:29:06,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 291 transitions. [2022-11-21 17:29:06,940 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5511363636363636 [2022-11-21 17:29:06,940 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 291 transitions. [2022-11-21 17:29:06,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 291 transitions. [2022-11-21 17:29:06,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:29:06,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 291 transitions. [2022-11-21 17:29:06,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:06,944 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:06,945 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:06,945 INFO L175 Difference]: Start difference. First operand has 95 places, 91 transitions, 194 flow. Second operand 3 states and 291 transitions. [2022-11-21 17:29:06,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 117 transitions, 364 flow [2022-11-21 17:29:06,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 117 transitions, 364 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 17:29:06,949 INFO L231 Difference]: Finished difference. Result has 99 places, 103 transitions, 294 flow [2022-11-21 17:29:06,950 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=294, PETRI_PLACES=99, PETRI_TRANSITIONS=103} [2022-11-21 17:29:06,952 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, -46 predicate places. [2022-11-21 17:29:06,952 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 103 transitions, 294 flow [2022-11-21 17:29:06,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:06,953 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:29:06,953 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:29:06,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 17:29:06,953 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2022-11-21 17:29:06,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:06,954 INFO L85 PathProgramCache]: Analyzing trace with hash -172869746, now seen corresponding path program 1 times [2022-11-21 17:29:06,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:29:06,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247629456] [2022-11-21 17:29:06,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:29:06,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:29:07,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:07,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:29:07,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:29:07,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247629456] [2022-11-21 17:29:07,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247629456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:29:07,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:29:07,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-21 17:29:07,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438240198] [2022-11-21 17:29:07,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:29:07,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 17:29:07,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:29:07,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 17:29:07,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-21 17:29:07,966 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 176 [2022-11-21 17:29:07,967 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 103 transitions, 294 flow. Second operand has 8 states, 8 states have (on average 76.375) internal successors, (611), 8 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:07,967 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 17:29:07,967 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 176 [2022-11-21 17:29:07,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 17:29:12,501 INFO L130 PetriNetUnfolder]: 10195/21397 cut-off events. [2022-11-21 17:29:12,502 INFO L131 PetriNetUnfolder]: For 8794/8794 co-relation queries the response was YES. [2022-11-21 17:29:12,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47510 conditions, 21397 events. 10195/21397 cut-off events. For 8794/8794 co-relation queries the response was YES. Maximal size of possible extension queue 1120. Compared 213873 event pairs, 1094 based on Foata normal form. 724/20861 useless extension candidates. Maximal degree in co-relation 47503. Up to 6701 conditions per place. [2022-11-21 17:29:12,866 INFO L137 encePairwiseOnDemand]: 159/176 looper letters, 104 selfloop transitions, 34 changer transitions 0/196 dead transitions. [2022-11-21 17:29:12,867 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 196 transitions, 924 flow [2022-11-21 17:29:12,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 17:29:12,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-21 17:29:12,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 711 transitions. [2022-11-21 17:29:12,872 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5049715909090909 [2022-11-21 17:29:12,872 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 711 transitions. [2022-11-21 17:29:12,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 711 transitions. [2022-11-21 17:29:12,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 17:29:12,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 711 transitions. [2022-11-21 17:29:12,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 88.875) internal successors, (711), 8 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:12,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 176.0) internal successors, (1584), 9 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:12,881 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 176.0) internal successors, (1584), 9 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:12,881 INFO L175 Difference]: Start difference. First operand has 99 places, 103 transitions, 294 flow. Second operand 8 states and 711 transitions. [2022-11-21 17:29:12,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 196 transitions, 924 flow [2022-11-21 17:29:12,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 196 transitions, 860 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 17:29:12,934 INFO L231 Difference]: Finished difference. Result has 108 places, 127 transitions, 456 flow [2022-11-21 17:29:12,935 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=456, PETRI_PLACES=108, PETRI_TRANSITIONS=127} [2022-11-21 17:29:12,938 INFO L288 CegarLoopForPetriNet]: 145 programPoint places, -37 predicate places. [2022-11-21 17:29:12,938 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 127 transitions, 456 flow [2022-11-21 17:29:12,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 76.375) internal successors, (611), 8 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:29:12,939 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 17:29:12,940 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:29:12,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 17:29:12,940 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err8ASSERT_VIOLATIONDATA_RACE, thr2Err9ASSERT_VIOLATIONDATA_RACE (and 76 more)] === [2022-11-21 17:29:12,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:12,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1639627633, now seen corresponding path program 1 times [2022-11-21 17:29:12,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:29:12,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991927012] [2022-11-21 17:29:12,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:29:12,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:29:12,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:29:12,985 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:29:13,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:29:13,033 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:29:13,033 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 17:29:13,033 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err2ASSERT_VIOLATIONDATA_RACE (79 of 80 remaining) [2022-11-21 17:29:13,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (78 of 80 remaining) [2022-11-21 17:29:13,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (77 of 80 remaining) [2022-11-21 17:29:13,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (76 of 80 remaining) [2022-11-21 17:29:13,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (75 of 80 remaining) [2022-11-21 17:29:13,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (74 of 80 remaining) [2022-11-21 17:29:13,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (73 of 80 remaining) [2022-11-21 17:29:13,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (72 of 80 remaining) [2022-11-21 17:29:13,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (71 of 80 remaining) [2022-11-21 17:29:13,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (70 of 80 remaining) [2022-11-21 17:29:13,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (69 of 80 remaining) [2022-11-21 17:29:13,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (68 of 80 remaining) [2022-11-21 17:29:13,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (67 of 80 remaining) [2022-11-21 17:29:13,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (66 of 80 remaining) [2022-11-21 17:29:13,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (65 of 80 remaining) [2022-11-21 17:29:13,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (64 of 80 remaining) [2022-11-21 17:29:13,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (63 of 80 remaining) [2022-11-21 17:29:13,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (62 of 80 remaining) [2022-11-21 17:29:13,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (61 of 80 remaining) [2022-11-21 17:29:13,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (60 of 80 remaining) [2022-11-21 17:29:13,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (59 of 80 remaining) [2022-11-21 17:29:13,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (58 of 80 remaining) [2022-11-21 17:29:13,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (57 of 80 remaining) [2022-11-21 17:29:13,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (56 of 80 remaining) [2022-11-21 17:29:13,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (55 of 80 remaining) [2022-11-21 17:29:13,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (54 of 80 remaining) [2022-11-21 17:29:13,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (53 of 80 remaining) [2022-11-21 17:29:13,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 80 remaining) [2022-11-21 17:29:13,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (51 of 80 remaining) [2022-11-21 17:29:13,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (50 of 80 remaining) [2022-11-21 17:29:13,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (49 of 80 remaining) [2022-11-21 17:29:13,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (48 of 80 remaining) [2022-11-21 17:29:13,041 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (47 of 80 remaining) [2022-11-21 17:29:13,041 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (46 of 80 remaining) [2022-11-21 17:29:13,041 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (45 of 80 remaining) [2022-11-21 17:29:13,041 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (44 of 80 remaining) [2022-11-21 17:29:13,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (43 of 80 remaining) [2022-11-21 17:29:13,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (42 of 80 remaining) [2022-11-21 17:29:13,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (41 of 80 remaining) [2022-11-21 17:29:13,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (40 of 80 remaining) [2022-11-21 17:29:13,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (39 of 80 remaining) [2022-11-21 17:29:13,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (38 of 80 remaining) [2022-11-21 17:29:13,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (37 of 80 remaining) [2022-11-21 17:29:13,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (36 of 80 remaining) [2022-11-21 17:29:13,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (35 of 80 remaining) [2022-11-21 17:29:13,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (34 of 80 remaining) [2022-11-21 17:29:13,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (33 of 80 remaining) [2022-11-21 17:29:13,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (32 of 80 remaining) [2022-11-21 17:29:13,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (31 of 80 remaining) [2022-11-21 17:29:13,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (30 of 80 remaining) [2022-11-21 17:29:13,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (29 of 80 remaining) [2022-11-21 17:29:13,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (28 of 80 remaining) [2022-11-21 17:29:13,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (27 of 80 remaining) [2022-11-21 17:29:13,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (26 of 80 remaining) [2022-11-21 17:29:13,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (25 of 80 remaining) [2022-11-21 17:29:13,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (24 of 80 remaining) [2022-11-21 17:29:13,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (23 of 80 remaining) [2022-11-21 17:29:13,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (22 of 80 remaining) [2022-11-21 17:29:13,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (21 of 80 remaining) [2022-11-21 17:29:13,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (20 of 80 remaining) [2022-11-21 17:29:13,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (19 of 80 remaining) [2022-11-21 17:29:13,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 80 remaining) [2022-11-21 17:29:13,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (17 of 80 remaining) [2022-11-21 17:29:13,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 80 remaining) [2022-11-21 17:29:13,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 80 remaining) [2022-11-21 17:29:13,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (14 of 80 remaining) [2022-11-21 17:29:13,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (13 of 80 remaining) [2022-11-21 17:29:13,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (12 of 80 remaining) [2022-11-21 17:29:13,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (11 of 80 remaining) [2022-11-21 17:29:13,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (10 of 80 remaining) [2022-11-21 17:29:13,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (9 of 80 remaining) [2022-11-21 17:29:13,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 80 remaining) [2022-11-21 17:29:13,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 80 remaining) [2022-11-21 17:29:13,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 80 remaining) [2022-11-21 17:29:13,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 80 remaining) [2022-11-21 17:29:13,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (4 of 80 remaining) [2022-11-21 17:29:13,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (3 of 80 remaining) [2022-11-21 17:29:13,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (2 of 80 remaining) [2022-11-21 17:29:13,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (1 of 80 remaining) [2022-11-21 17:29:13,051 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (0 of 80 remaining) [2022-11-21 17:29:13,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 17:29:13,051 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-21 17:29:13,057 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2022-11-21 17:29:13,057 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 17:29:13,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:29:13 BasicIcfg [2022-11-21 17:29:13,122 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 17:29:13,123 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:29:13,123 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:29:13,123 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:29:13,124 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:29:02" (3/4) ... [2022-11-21 17:29:13,126 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 17:29:13,127 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:29:13,127 INFO L158 Benchmark]: Toolchain (without parser) took 12838.20ms. Allocated memory was 142.6MB in the beginning and 943.7MB in the end (delta: 801.1MB). Free memory was 108.0MB in the beginning and 678.7MB in the end (delta: -570.7MB). Peak memory consumption was 231.3MB. Max. memory is 16.1GB. [2022-11-21 17:29:13,128 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 115.3MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:29:13,128 INFO L158 Benchmark]: CACSL2BoogieTranslator took 600.77ms. Allocated memory is still 142.6MB. Free memory was 108.0MB in the beginning and 87.8MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-21 17:29:13,128 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.61ms. Allocated memory is still 142.6MB. Free memory was 87.8MB in the beginning and 84.2MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 17:29:13,128 INFO L158 Benchmark]: Boogie Preprocessor took 86.64ms. Allocated memory is still 142.6MB. Free memory was 84.2MB in the beginning and 80.9MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:29:13,129 INFO L158 Benchmark]: RCFGBuilder took 1525.63ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 80.9MB in the beginning and 131.9MB in the end (delta: -51.0MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. [2022-11-21 17:29:13,129 INFO L158 Benchmark]: TraceAbstraction took 10510.97ms. Allocated memory was 172.0MB in the beginning and 943.7MB in the end (delta: 771.8MB). Free memory was 131.9MB in the beginning and 679.8MB in the end (delta: -547.9MB). Peak memory consumption was 222.8MB. Max. memory is 16.1GB. [2022-11-21 17:29:13,129 INFO L158 Benchmark]: Witness Printer took 3.96ms. Allocated memory is still 943.7MB. Free memory was 679.8MB in the beginning and 678.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:29:13,131 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 115.3MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 600.77ms. Allocated memory is still 142.6MB. Free memory was 108.0MB in the beginning and 87.8MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.61ms. Allocated memory is still 142.6MB. Free memory was 87.8MB in the beginning and 84.2MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.64ms. Allocated memory is still 142.6MB. Free memory was 84.2MB in the beginning and 80.9MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1525.63ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 80.9MB in the beginning and 131.9MB in the end (delta: -51.0MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. * TraceAbstraction took 10510.97ms. Allocated memory was 172.0MB in the beginning and 943.7MB in the end (delta: 771.8MB). Free memory was 131.9MB in the beginning and 679.8MB in the end (delta: -547.9MB). Peak memory consumption was 222.8MB. Max. memory is 16.1GB. * Witness Printer took 3.96ms. Allocated memory is still 943.7MB. Free memory was 679.8MB in the beginning and 678.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 729]: Data race detected Data race detected The following path leads to a data race: [L689] 0 int count = 0; VAL [count=0] [L708] 0 int mutexa = 0; VAL [count=0, mutexa={3:0}] [L709] 0 int mutexb = 0; VAL [count=0, mutexa={3:0}, mutexb={4:0}] [L747] 0 pthread_t t; VAL [count=0, mutexa={3:0}, mutexb={4:0}, t={5:0}] [L748] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [count=0, mutexa={3:0}, mutexb={4:0}, pthread_create(&t, 0, thr1, 0)=6, t={5:0}] [L726] COND TRUE 1 1 VAL [arg={0:0}, arg={0:0}, count=0, mutexa={3:0}, mutexb={4:0}] [L728] CALL 1 __VERIFIER_atomic_acquire(&mutexa) [L692] EXPR 1 \read(*m) [L692] EXPR 1 *m==0 [L692] CALL 1 assume_abort_if_not(*m==0) [L4] COND FALSE 1 !(!cond) [L692] RET 1 assume_abort_if_not(*m==0) [L693] 1 *m = 1 [L728] RET 1 __VERIFIER_atomic_acquire(&mutexa) [L749] COND TRUE 0 1 VAL [count=0, mutexa={3:0}, mutexb={4:0}, t={5:0}] [L751] FCALL, FORK 0 pthread_create(&t, 0, thr2, 0) VAL [count=0, mutexa={3:0}, mutexb={4:0}, pthread_create(&t, 0, thr2, 0)=7, t={5:0}] [L739] COND FALSE 2 !(__VERIFIER_nondet_int()) VAL [__VERIFIER_nondet_int()=0, arg={0:0}, arg={0:0}, count=0, mutexa={3:0}, mutexb={4:0}] [L742] CALL 2 my_thread2() [L719] CALL 2 __VERIFIER_atomic_acquire(&mutexb) [L692] EXPR 2 \read(*m) [L692] EXPR 2 *m==0 [L692] CALL 2 assume_abort_if_not(*m==0) [L4] COND FALSE 2 !(!cond) [L692] RET 2 assume_abort_if_not(*m==0) [L693] 2 *m = 1 [L719] RET 2 __VERIFIER_atomic_acquire(&mutexb) [L729] 1 count >= -1 VAL [arg={0:0}, arg={0:0}, count=0, mutexa={3:0}, mutexb={4:0}] [L720] CALL 2 __VERIFIER_atomic_dec() [L706] 2 count-- [L720] RET 2 __VERIFIER_atomic_dec() [L729] 1 count >= -1 VAL [arg={0:0}, arg={0:0}, count=-1, mutexa={3:0}, mutexb={4:0}] Now there is a data race on ~count~0 between C: count-- [706] and C: count >= -1 [729] - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 731]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 751]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 748]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 167 locations, 54 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 59 IncrementalHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 5 mSDtfsCounter, 59 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=222occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 56 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 7 procedures, 230 locations, 80 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 187 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 187 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 74 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 301 IncrementalHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 74 mSolverCounterUnsat, 13 mSDtfsCounter, 301 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=456occurred in iteration=3, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 695 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-21 17:29:13,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac9b6aa8-e2a2-4526-bec7-a229fc8c78e4/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE