./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.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_fafa0cd4-045d-4297-b66d-23bd35409750/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa0cd4-045d-4297-b66d-23bd35409750/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_fafa0cd4-045d-4297-b66d-23bd35409750/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa0cd4-045d-4297-b66d-23bd35409750/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa0cd4-045d-4297-b66d-23bd35409750/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_fafa0cd4-045d-4297-b66d-23bd35409750/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 f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af --- 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 16:31:34,309 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:31:34,311 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:31:34,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:31:34,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:31:34,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:31:34,346 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:31:34,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:31:34,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:31:34,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:31:34,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:31:34,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:31:34,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:31:34,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:31:34,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:31:34,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:31:34,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:31:34,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:31:34,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:31:34,369 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:31:34,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:31:34,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:31:34,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:31:34,383 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:31:34,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:31:34,390 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:31:34,391 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:31:34,392 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:31:34,392 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:31:34,393 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:31:34,393 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:31:34,394 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:31:34,395 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:31:34,395 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:31:34,396 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:31:34,396 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:31:34,397 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:31:34,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:31:34,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:31:34,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:31:34,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:31:34,407 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa0cd4-045d-4297-b66d-23bd35409750/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 16:31:34,463 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:31:34,463 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:31:34,463 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:31:34,464 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:31:34,464 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:31:34,464 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:31:34,465 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:31:34,465 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:31:34,465 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:31:34,466 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:31:34,466 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:31:34,466 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:31:34,466 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:31:34,466 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:31:34,467 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:31:34,467 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:31:34,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:31:34,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:31:34,467 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 16:31:34,468 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:31:34,468 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:31:34,468 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:31:34,468 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:31:34,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:31:34,469 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:31:34,469 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:31:34,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:31:34,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:31:34,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:31:34,469 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:31:34,470 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:31:34,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:31:34,472 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:31:34,472 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:31:34,472 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:31:34,472 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_fafa0cd4-045d-4297-b66d-23bd35409750/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa0cd4-045d-4297-b66d-23bd35409750/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af [2022-11-21 16:31:34,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:31:34,786 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:31:34,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:31:34,791 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:31:34,791 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:31:34,793 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa0cd4-045d-4297-b66d-23bd35409750/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2022-11-21 16:31:38,183 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:31:38,541 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:31:38,541 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa0cd4-045d-4297-b66d-23bd35409750/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2022-11-21 16:31:38,571 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa0cd4-045d-4297-b66d-23bd35409750/bin/uautomizer-vX5HgA9Q3a/data/057b388d8/c7ccb60928df49d3aac529db3d14a438/FLAG305504217 [2022-11-21 16:31:38,590 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa0cd4-045d-4297-b66d-23bd35409750/bin/uautomizer-vX5HgA9Q3a/data/057b388d8/c7ccb60928df49d3aac529db3d14a438 [2022-11-21 16:31:38,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:31:38,595 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:31:38,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:31:38,598 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:31:38,602 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:31:38,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:31:38" (1/1) ... [2022-11-21 16:31:38,606 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17276a95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:38, skipping insertion in model container [2022-11-21 16:31:38,606 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:31:38" (1/1) ... [2022-11-21 16:31:38,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:31:38,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:31:39,260 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_fafa0cd4-045d-4297-b66d-23bd35409750/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i[47038,47051] [2022-11-21 16:31:39,299 WARN L1569 CHandler]: Possible shadowing of function new [2022-11-21 16:31:39,301 WARN L1569 CHandler]: Possible shadowing of function new [2022-11-21 16:31:39,302 WARN L1569 CHandler]: Possible shadowing of function new [2022-11-21 16:31:39,303 WARN L1569 CHandler]: Possible shadowing of function new [2022-11-21 16:31:39,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:31:39,359 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:31:39,403 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_fafa0cd4-045d-4297-b66d-23bd35409750/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i[47038,47051] [2022-11-21 16:31:39,409 WARN L1569 CHandler]: Possible shadowing of function new [2022-11-21 16:31:39,410 WARN L1569 CHandler]: Possible shadowing of function new [2022-11-21 16:31:39,411 WARN L1569 CHandler]: Possible shadowing of function new [2022-11-21 16:31:39,412 WARN L1569 CHandler]: Possible shadowing of function new [2022-11-21 16:31:39,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:31:39,501 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:31:39,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:39 WrapperNode [2022-11-21 16:31:39,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:31:39,503 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:31:39,503 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:31:39,504 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:31:39,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:39" (1/1) ... [2022-11-21 16:31:39,535 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:39" (1/1) ... [2022-11-21 16:31:39,597 INFO L138 Inliner]: procedures = 278, calls = 64, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 456 [2022-11-21 16:31:39,597 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:31:39,598 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:31:39,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:31:39,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:31:39,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:39" (1/1) ... [2022-11-21 16:31:39,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:39" (1/1) ... [2022-11-21 16:31:39,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:39" (1/1) ... [2022-11-21 16:31:39,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:39" (1/1) ... [2022-11-21 16:31:39,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:39" (1/1) ... [2022-11-21 16:31:39,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:39" (1/1) ... [2022-11-21 16:31:39,722 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:39" (1/1) ... [2022-11-21 16:31:39,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:39" (1/1) ... [2022-11-21 16:31:39,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:31:39,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:31:39,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:31:39,744 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:31:39,745 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:39" (1/1) ... [2022-11-21 16:31:39,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:31:39,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa0cd4-045d-4297-b66d-23bd35409750/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:31:39,778 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa0cd4-045d-4297-b66d-23bd35409750/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:31:39,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fafa0cd4-045d-4297-b66d-23bd35409750/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:31:39,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:31:39,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 16:31:39,830 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2022-11-21 16:31:39,830 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2022-11-21 16:31:39,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:31:39,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:31:39,830 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-11-21 16:31:39,831 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-11-21 16:31:39,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:31:39,831 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-21 16:31:39,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 16:31:39,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:31:39,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 16:31:39,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:31:39,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:31:39,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:31:39,834 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 16:31:40,100 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:31:40,103 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:31:41,031 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:31:41,043 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:31:41,043 INFO L300 CfgBuilder]: Removed 30 assume(true) statements. [2022-11-21 16:31:41,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:31:41 BoogieIcfgContainer [2022-11-21 16:31:41,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:31:41,050 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:31:41,050 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:31:41,054 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:31:41,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:31:38" (1/3) ... [2022-11-21 16:31:41,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2874c218 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:31:41, skipping insertion in model container [2022-11-21 16:31:41,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:31:39" (2/3) ... [2022-11-21 16:31:41,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2874c218 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:31:41, skipping insertion in model container [2022-11-21 16:31:41,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:31:41" (3/3) ... [2022-11-21 16:31:41,058 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_90-arrayloop2_racing.i [2022-11-21 16:31:41,067 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:31:41,080 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:31:41,080 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-11-21 16:31:41,080 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:31:41,245 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-21 16:31:41,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 457 places, 498 transitions, 1018 flow [2022-11-21 16:31:41,635 INFO L130 PetriNetUnfolder]: 77/775 cut-off events. [2022-11-21 16:31:41,636 INFO L131 PetriNetUnfolder]: For 8/12 co-relation queries the response was YES. [2022-11-21 16:31:41,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 795 conditions, 775 events. 77/775 cut-off events. For 8/12 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3840 event pairs, 0 based on Foata normal form. 0/653 useless extension candidates. Maximal degree in co-relation 404. Up to 8 conditions per place. [2022-11-21 16:31:41,651 INFO L82 GeneralOperation]: Start removeDead. Operand has 457 places, 498 transitions, 1018 flow [2022-11-21 16:31:41,663 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 457 places, 498 transitions, 1018 flow [2022-11-21 16:31:41,673 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:31:41,680 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;@9f850ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:31:41,680 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2022-11-21 16:31:41,690 INFO L130 PetriNetUnfolder]: 5/73 cut-off events. [2022-11-21 16:31:41,690 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:31:41,690 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:31:41,691 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] [2022-11-21 16:31:41,692 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2022-11-21 16:31:41,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:31:41,697 INFO L85 PathProgramCache]: Analyzing trace with hash 911775831, now seen corresponding path program 1 times [2022-11-21 16:31:41,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:31:41,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849789416] [2022-11-21 16:31:41,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:31:41,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:31:41,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:31:42,536 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 16:31:42,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:31:42,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849789416] [2022-11-21 16:31:42,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849789416] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:31:42,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:31:42,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:31:42,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203220885] [2022-11-21 16:31:42,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:31:42,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:31:42,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:31:42,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:31:42,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:31:42,605 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 498 [2022-11-21 16:31:42,614 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 498 transitions, 1018 flow. Second operand has 6 states, 6 states have (on average 289.5) internal successors, (1737), 6 states have internal predecessors, (1737), 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 16:31:42,614 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:31:42,615 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 498 [2022-11-21 16:31:42,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:32:02,745 INFO L130 PetriNetUnfolder]: 52239/123295 cut-off events. [2022-11-21 16:32:02,746 INFO L131 PetriNetUnfolder]: For 1617/1848 co-relation queries the response was YES. [2022-11-21 16:32:03,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200910 conditions, 123295 events. 52239/123295 cut-off events. For 1617/1848 co-relation queries the response was YES. Maximal size of possible extension queue 2525. Compared 1493693 event pairs, 46326 based on Foata normal form. 26398/132417 useless extension candidates. Maximal degree in co-relation 196324. Up to 77008 conditions per place. [2022-11-21 16:32:03,599 INFO L137 encePairwiseOnDemand]: 452/498 looper letters, 162 selfloop transitions, 10 changer transitions 0/460 dead transitions. [2022-11-21 16:32:03,599 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 458 places, 460 transitions, 1286 flow [2022-11-21 16:32:03,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:32:03,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:32:03,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1936 transitions. [2022-11-21 16:32:03,627 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6479250334672021 [2022-11-21 16:32:03,628 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1936 transitions. [2022-11-21 16:32:03,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1936 transitions. [2022-11-21 16:32:03,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:32:03,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1936 transitions. [2022-11-21 16:32:03,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 322.6666666666667) internal successors, (1936), 6 states have internal predecessors, (1936), 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 16:32:03,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 498.0) internal successors, (3486), 7 states have internal predecessors, (3486), 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 16:32:03,665 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 498.0) internal successors, (3486), 7 states have internal predecessors, (3486), 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 16:32:03,667 INFO L175 Difference]: Start difference. First operand has 457 places, 498 transitions, 1018 flow. Second operand 6 states and 1936 transitions. [2022-11-21 16:32:03,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 458 places, 460 transitions, 1286 flow [2022-11-21 16:32:03,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 458 places, 460 transitions, 1286 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 16:32:03,717 INFO L231 Difference]: Finished difference. Result has 458 places, 460 transitions, 962 flow [2022-11-21 16:32:03,720 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=498, PETRI_DIFFERENCE_MINUEND_FLOW=942, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=962, PETRI_PLACES=458, PETRI_TRANSITIONS=460} [2022-11-21 16:32:03,725 INFO L288 CegarLoopForPetriNet]: 457 programPoint places, 1 predicate places. [2022-11-21 16:32:03,726 INFO L495 AbstractCegarLoop]: Abstraction has has 458 places, 460 transitions, 962 flow [2022-11-21 16:32:03,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 289.5) internal successors, (1737), 6 states have internal predecessors, (1737), 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 16:32:03,728 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:32:03,729 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] [2022-11-21 16:32:03,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:32:03,729 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2022-11-21 16:32:03,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:32:03,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1411788851, now seen corresponding path program 1 times [2022-11-21 16:32:03,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:32:03,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849506459] [2022-11-21 16:32:03,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:32:03,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:32:03,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:32:03,848 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 16:32:03,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:32:03,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849506459] [2022-11-21 16:32:03,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849506459] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:32:03,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:32:03,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:32:03,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218082282] [2022-11-21 16:32:03,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:32:03,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:32:03,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:32:03,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:32:03,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:32:03,854 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 446 out of 498 [2022-11-21 16:32:03,856 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 458 places, 460 transitions, 962 flow. Second operand has 3 states, 3 states have (on average 447.0) internal successors, (1341), 3 states have internal predecessors, (1341), 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 16:32:03,856 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:32:03,856 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 446 of 498 [2022-11-21 16:32:03,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:32:04,046 INFO L130 PetriNetUnfolder]: 20/838 cut-off events. [2022-11-21 16:32:04,046 INFO L131 PetriNetUnfolder]: For 33/37 co-relation queries the response was YES. [2022-11-21 16:32:04,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 908 conditions, 838 events. 20/838 cut-off events. For 33/37 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 4131 event pairs, 0 based on Foata normal form. 0/761 useless extension candidates. Maximal degree in co-relation 641. Up to 22 conditions per place. [2022-11-21 16:32:04,061 INFO L137 encePairwiseOnDemand]: 495/498 looper letters, 21 selfloop transitions, 2 changer transitions 0/467 dead transitions. [2022-11-21 16:32:04,061 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 460 places, 467 transitions, 1022 flow [2022-11-21 16:32:04,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:32:04,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:32:04,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1362 transitions. [2022-11-21 16:32:04,067 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9116465863453815 [2022-11-21 16:32:04,067 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1362 transitions. [2022-11-21 16:32:04,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1362 transitions. [2022-11-21 16:32:04,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:32:04,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1362 transitions. [2022-11-21 16:32:04,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 454.0) internal successors, (1362), 3 states have internal predecessors, (1362), 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 16:32:04,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 498.0) internal successors, (1992), 4 states have internal predecessors, (1992), 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 16:32:04,078 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 498.0) internal successors, (1992), 4 states have internal predecessors, (1992), 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 16:32:04,078 INFO L175 Difference]: Start difference. First operand has 458 places, 460 transitions, 962 flow. Second operand 3 states and 1362 transitions. [2022-11-21 16:32:04,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 460 places, 467 transitions, 1022 flow [2022-11-21 16:32:04,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 467 transitions, 1002 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:32:04,089 INFO L231 Difference]: Finished difference. Result has 456 places, 461 transitions, 954 flow [2022-11-21 16:32:04,090 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=498, PETRI_DIFFERENCE_MINUEND_FLOW=942, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=954, PETRI_PLACES=456, PETRI_TRANSITIONS=461} [2022-11-21 16:32:04,091 INFO L288 CegarLoopForPetriNet]: 457 programPoint places, -1 predicate places. [2022-11-21 16:32:04,092 INFO L495 AbstractCegarLoop]: Abstraction has has 456 places, 461 transitions, 954 flow [2022-11-21 16:32:04,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 447.0) internal successors, (1341), 3 states have internal predecessors, (1341), 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 16:32:04,093 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:32:04,093 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:32:04,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:32:04,094 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2022-11-21 16:32:04,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:32:04,096 INFO L85 PathProgramCache]: Analyzing trace with hash -330769280, now seen corresponding path program 1 times [2022-11-21 16:32:04,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:32:04,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085584519] [2022-11-21 16:32:04,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:32:04,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:32:04,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:32:04,470 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 16:32:04,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:32:04,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085584519] [2022-11-21 16:32:04,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085584519] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:32:04,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:32:04,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:32:04,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038294107] [2022-11-21 16:32:04,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:32:04,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:32:04,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:32:04,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:32:04,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:32:04,475 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 498 [2022-11-21 16:32:04,478 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 456 places, 461 transitions, 954 flow. Second operand has 6 states, 6 states have (on average 290.5) internal successors, (1743), 6 states have internal predecessors, (1743), 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 16:32:04,478 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:32:04,478 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 498 [2022-11-21 16:32:04,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand