./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d5d5195-14e9-402c-aa97-c759fd8a177b/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d5d5195-14e9-402c-aa97-c759fd8a177b/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d5d5195-14e9-402c-aa97-c759fd8a177b/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d5d5195-14e9-402c-aa97-c759fd8a177b/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d5d5195-14e9-402c-aa97-c759fd8a177b/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d5d5195-14e9-402c-aa97-c759fd8a177b/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:21:07,278 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:21:07,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:21:07,326 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:21:07,332 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:21:07,334 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:21:07,337 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:21:07,343 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:21:07,345 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:21:07,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:21:07,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:21:07,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:21:07,356 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:21:07,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:21:07,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:21:07,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:21:07,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:21:07,369 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:21:07,372 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:21:07,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:21:07,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:21:07,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:21:07,392 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:21:07,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:21:07,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:21:07,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:21:07,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:21:07,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:21:07,406 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:21:07,407 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:21:07,409 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:21:07,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:21:07,412 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:21:07,413 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:21:07,415 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:21:07,417 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:21:07,419 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:21:07,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:21:07,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:21:07,422 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:21:07,423 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:21:07,424 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d5d5195-14e9-402c-aa97-c759fd8a177b/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 11:21:07,458 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:21:07,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:21:07,459 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:21:07,459 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:21:07,460 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:21:07,460 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:21:07,461 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:21:07,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:21:07,462 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:21:07,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:21:07,462 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:21:07,463 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:21:07,463 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:21:07,463 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:21:07,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:21:07,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:21:07,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:21:07,464 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:21:07,465 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 11:21:07,465 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:21:07,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:21:07,466 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:21:07,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:21:07,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:21:07,466 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:21:07,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:21:07,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:21:07,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:21:07,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:21:07,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:21:07,468 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:21:07,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:21:07,469 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:21:07,469 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:21:07,469 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:21:07,470 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_1d5d5195-14e9-402c-aa97-c759fd8a177b/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d5d5195-14e9-402c-aa97-c759fd8a177b/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b [2022-11-16 11:21:07,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:21:07,793 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:21:07,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:21:07,799 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:21:07,800 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:21:07,802 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d5d5195-14e9-402c-aa97-c759fd8a177b/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i [2022-11-16 11:21:07,892 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d5d5195-14e9-402c-aa97-c759fd8a177b/bin/uautomizer-tPACEb0tL8/data/e387bac89/a057ae509a1745d2a99b45ae9f516371/FLAGd9b5be4b2 [2022-11-16 11:21:08,554 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:21:08,555 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d5d5195-14e9-402c-aa97-c759fd8a177b/sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i [2022-11-16 11:21:08,577 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d5d5195-14e9-402c-aa97-c759fd8a177b/bin/uautomizer-tPACEb0tL8/data/e387bac89/a057ae509a1745d2a99b45ae9f516371/FLAGd9b5be4b2 [2022-11-16 11:21:08,753 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d5d5195-14e9-402c-aa97-c759fd8a177b/bin/uautomizer-tPACEb0tL8/data/e387bac89/a057ae509a1745d2a99b45ae9f516371 [2022-11-16 11:21:08,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:21:08,757 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:21:08,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:21:08,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:21:08,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:21:08,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:21:08" (1/1) ... [2022-11-16 11:21:08,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d411a7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:21:08, skipping insertion in model container [2022-11-16 11:21:08,766 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:21:08" (1/1) ... [2022-11-16 11:21:08,774 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:21:08,821 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:21:09,463 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d5d5195-14e9-402c-aa97-c759fd8a177b/sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i[47038,47051] [2022-11-16 11:21:09,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:21:09,572 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:21:09,627 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d5d5195-14e9-402c-aa97-c759fd8a177b/sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i[47038,47051] [2022-11-16 11:21:09,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:21:09,772 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:21:09,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:21:09 WrapperNode [2022-11-16 11:21:09,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:21:09,775 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:21:09,776 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:21:09,776 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:21:09,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:21:09" (1/1) ... [2022-11-16 11:21:09,821 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:21:09" (1/1) ... [2022-11-16 11:21:09,887 INFO L138 Inliner]: procedures = 279, calls = 86, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 517 [2022-11-16 11:21:09,888 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:21:09,888 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:21:09,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:21:09,889 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:21:09,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:21:09" (1/1) ... [2022-11-16 11:21:09,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:21:09" (1/1) ... [2022-11-16 11:21:09,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:21:09" (1/1) ... [2022-11-16 11:21:09,906 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:21:09" (1/1) ... [2022-11-16 11:21:09,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:21:09" (1/1) ... [2022-11-16 11:21:09,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:21:09" (1/1) ... [2022-11-16 11:21:09,945 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:21:09" (1/1) ... [2022-11-16 11:21:09,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:21:09" (1/1) ... [2022-11-16 11:21:09,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:21:09,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:21:09,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:21:09,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:21:09,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:21:09" (1/1) ... [2022-11-16 11:21:09,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:21:09,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d5d5195-14e9-402c-aa97-c759fd8a177b/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:21:09,988 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d5d5195-14e9-402c-aa97-c759fd8a177b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:21:10,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d5d5195-14e9-402c-aa97-c759fd8a177b/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:21:10,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:21:10,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:21:10,053 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-11-16 11:21:10,053 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-11-16 11:21:10,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:21:10,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:21:10,054 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-16 11:21:10,054 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-16 11:21:10,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:21:10,054 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:21:10,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:21:10,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:21:10,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:21:10,055 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2022-11-16 11:21:10,055 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2022-11-16 11:21:10,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:21:10,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:21:10,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:21:10,057 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:21:10,318 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:21:10,320 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:21:11,392 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:21:11,405 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:21:11,405 INFO L300 CfgBuilder]: Removed 28 assume(true) statements. [2022-11-16 11:21:11,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:21:11 BoogieIcfgContainer [2022-11-16 11:21:11,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:21:11,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:21:11,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:21:11,436 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:21:11,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:21:08" (1/3) ... [2022-11-16 11:21:11,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6da6da43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:21:11, skipping insertion in model container [2022-11-16 11:21:11,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:21:09" (2/3) ... [2022-11-16 11:21:11,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6da6da43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:21:11, skipping insertion in model container [2022-11-16 11:21:11,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:21:11" (3/3) ... [2022-11-16 11:21:11,439 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_85-list2_racefree.i [2022-11-16 11:21:11,449 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 11:21:11,478 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:21:11,494 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2022-11-16 11:21:11,495 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:21:11,831 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2022-11-16 11:21:11,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 535 places, 574 transitions, 1190 flow [2022-11-16 11:21:12,916 INFO L130 PetriNetUnfolder]: 165/1628 cut-off events. [2022-11-16 11:21:12,917 INFO L131 PetriNetUnfolder]: For 36/66 co-relation queries the response was YES. [2022-11-16 11:21:12,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1689 conditions, 1628 events. 165/1628 cut-off events. For 36/66 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 11568 event pairs, 0 based on Foata normal form. 0/1365 useless extension candidates. Maximal degree in co-relation 836. Up to 16 conditions per place. [2022-11-16 11:21:12,964 INFO L82 GeneralOperation]: Start removeDead. Operand has 535 places, 574 transitions, 1190 flow [2022-11-16 11:21:13,003 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 535 places, 574 transitions, 1190 flow [2022-11-16 11:21:13,019 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:21:13,034 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;@10cfb7b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:21:13,035 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2022-11-16 11:21:13,045 INFO L130 PetriNetUnfolder]: 0/46 cut-off events. [2022-11-16 11:21:13,045 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:21:13,046 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:21:13,047 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:21:13,048 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-16 11:21:13,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:21:13,055 INFO L85 PathProgramCache]: Analyzing trace with hash 2066445146, now seen corresponding path program 1 times [2022-11-16 11:21:13,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:21:13,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657094435] [2022-11-16 11:21:13,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:21:13,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:21:13,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:13,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:21:13,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:21:13,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657094435] [2022-11-16 11:21:13,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657094435] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:21:13,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:21:13,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:21:13,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327472193] [2022-11-16 11:21:13,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:21:13,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:21:13,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:21:13,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:21:13,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:21:13,560 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 515 out of 574 [2022-11-16 11:21:13,572 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 535 places, 574 transitions, 1190 flow. Second operand has 3 states, 3 states have (on average 516.3333333333334) internal successors, (1549), 3 states have internal predecessors, (1549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:13,572 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:21:13,572 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 515 of 574 [2022-11-16 11:21:13,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:21:16,175 INFO L130 PetriNetUnfolder]: 315/5379 cut-off events. [2022-11-16 11:21:16,175 INFO L131 PetriNetUnfolder]: For 650/863 co-relation queries the response was YES. [2022-11-16 11:21:16,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5993 conditions, 5379 events. 315/5379 cut-off events. For 650/863 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 48082 event pairs, 150 based on Foata normal form. 654/5403 useless extension candidates. Maximal degree in co-relation 4059. Up to 371 conditions per place. [2022-11-16 11:21:16,284 INFO L137 encePairwiseOnDemand]: 541/574 looper letters, 24 selfloop transitions, 2 changer transitions 0/541 dead transitions. [2022-11-16 11:21:16,284 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 534 places, 541 transitions, 1176 flow [2022-11-16 11:21:16,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:21:16,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:21:16,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1602 transitions. [2022-11-16 11:21:16,306 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9303135888501742 [2022-11-16 11:21:16,307 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1602 transitions. [2022-11-16 11:21:16,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1602 transitions. [2022-11-16 11:21:16,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:21:16,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1602 transitions. [2022-11-16 11:21:16,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 534.0) internal successors, (1602), 3 states have internal predecessors, (1602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:16,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 574.0) internal successors, (2296), 4 states have internal predecessors, (2296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:16,338 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 574.0) internal successors, (2296), 4 states have internal predecessors, (2296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:16,340 INFO L175 Difference]: Start difference. First operand has 535 places, 574 transitions, 1190 flow. Second operand 3 states and 1602 transitions. [2022-11-16 11:21:16,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 534 places, 541 transitions, 1176 flow [2022-11-16 11:21:16,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 534 places, 541 transitions, 1176 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 11:21:16,361 INFO L231 Difference]: Finished difference. Result has 534 places, 541 transitions, 1128 flow [2022-11-16 11:21:16,364 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=574, PETRI_DIFFERENCE_MINUEND_FLOW=1124, PETRI_DIFFERENCE_MINUEND_PLACES=532, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=541, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=539, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1128, PETRI_PLACES=534, PETRI_TRANSITIONS=541} [2022-11-16 11:21:16,368 INFO L288 CegarLoopForPetriNet]: 535 programPoint places, -1 predicate places. [2022-11-16 11:21:16,368 INFO L495 AbstractCegarLoop]: Abstraction has has 534 places, 541 transitions, 1128 flow [2022-11-16 11:21:16,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 516.3333333333334) internal successors, (1549), 3 states have internal predecessors, (1549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:16,370 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:21:16,370 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:21:16,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:21:16,371 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-16 11:21:16,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:21:16,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1218814672, now seen corresponding path program 1 times [2022-11-16 11:21:16,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:21:16,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194860711] [2022-11-16 11:21:16,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:21:16,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:21:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:16,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:21:16,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:21:16,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194860711] [2022-11-16 11:21:16,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194860711] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:21:16,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:21:16,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:21:16,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926237534] [2022-11-16 11:21:16,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:21:16,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:21:16,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:21:16,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:21:16,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:21:16,514 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 518 out of 574 [2022-11-16 11:21:16,517 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 534 places, 541 transitions, 1128 flow. Second operand has 3 states, 3 states have (on average 519.3333333333334) internal successors, (1558), 3 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:16,517 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:21:16,518 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 518 of 574 [2022-11-16 11:21:16,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 11:21:18,464 INFO L130 PetriNetUnfolder]: 235/5037 cut-off events. [2022-11-16 11:21:18,464 INFO L131 PetriNetUnfolder]: For 466/625 co-relation queries the response was YES. [2022-11-16 11:21:18,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5454 conditions, 5037 events. 235/5037 cut-off events. For 466/625 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 43475 event pairs, 82 based on Foata normal form. 0/4527 useless extension candidates. Maximal degree in co-relation 5395. Up to 235 conditions per place. [2022-11-16 11:21:18,568 INFO L137 encePairwiseOnDemand]: 570/574 looper letters, 19 selfloop transitions, 1 changer transitions 0/538 dead transitions. [2022-11-16 11:21:18,568 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 533 places, 538 transitions, 1162 flow [2022-11-16 11:21:18,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:21:18,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 11:21:18,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1577 transitions. [2022-11-16 11:21:18,573 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9157955865272939 [2022-11-16 11:21:18,574 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1577 transitions. [2022-11-16 11:21:18,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1577 transitions. [2022-11-16 11:21:18,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:21:18,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1577 transitions. [2022-11-16 11:21:18,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 525.6666666666666) internal successors, (1577), 3 states have internal predecessors, (1577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:18,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 574.0) internal successors, (2296), 4 states have internal predecessors, (2296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:18,586 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 574.0) internal successors, (2296), 4 states have internal predecessors, (2296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:18,586 INFO L175 Difference]: Start difference. First operand has 534 places, 541 transitions, 1128 flow. Second operand 3 states and 1577 transitions. [2022-11-16 11:21:18,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 533 places, 538 transitions, 1162 flow [2022-11-16 11:21:18,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 531 places, 538 transitions, 1158 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 11:21:18,598 INFO L231 Difference]: Finished difference. Result has 531 places, 538 transitions, 1120 flow [2022-11-16 11:21:18,599 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=574, PETRI_DIFFERENCE_MINUEND_FLOW=1118, PETRI_DIFFERENCE_MINUEND_PLACES=529, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=538, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=537, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1120, PETRI_PLACES=531, PETRI_TRANSITIONS=538} [2022-11-16 11:21:18,600 INFO L288 CegarLoopForPetriNet]: 535 programPoint places, -4 predicate places. [2022-11-16 11:21:18,600 INFO L495 AbstractCegarLoop]: Abstraction has has 531 places, 538 transitions, 1120 flow [2022-11-16 11:21:18,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 519.3333333333334) internal successors, (1558), 3 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:18,602 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 11:21:18,602 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:21:18,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:21:18,603 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-16 11:21:18,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:21:18,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1372861407, now seen corresponding path program 1 times [2022-11-16 11:21:18,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:21:18,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321338485] [2022-11-16 11:21:18,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:21:18,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:21:18,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:21:19,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:21:19,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:21:19,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321338485] [2022-11-16 11:21:19,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321338485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:21:19,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:21:19,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:21:19,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213345662] [2022-11-16 11:21:19,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:21:19,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:21:19,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:21:19,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:21:19,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:21:19,274 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 362 out of 574 [2022-11-16 11:21:19,278 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 531 places, 538 transitions, 1120 flow. Second operand has 6 states, 6 states have (on average 363.5) internal successors, (2181), 6 states have internal predecessors, (2181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:21:19,279 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 11:21:19,279 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 362 of 574 [2022-11-16 11:21:19,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand