./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a 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_d54a50da-ea58-4221-9421-697781ecad16/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d54a50da-ea58-4221-9421-697781ecad16/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d54a50da-ea58-4221-9421-697781ecad16/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d54a50da-ea58-4221-9421-697781ecad16/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d54a50da-ea58-4221-9421-697781ecad16/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d54a50da-ea58-4221-9421-697781ecad16/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6dd4f5b1ff018649ffc6fcf6c400dcf6859c8fbe22bc4e1d68608a723e1e2f9d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 21:10:46,272 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:10:46,274 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:10:46,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:10:46,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:10:46,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:10:46,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:10:46,307 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:10:46,309 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:10:46,310 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:10:46,311 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:10:46,313 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:10:46,313 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:10:46,314 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:10:46,316 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:10:46,317 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:10:46,318 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:10:46,319 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:10:46,321 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:10:46,323 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:10:46,325 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:10:46,326 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:10:46,327 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:10:46,328 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:10:46,332 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:10:46,333 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:10:46,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:10:46,334 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:10:46,335 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:10:46,336 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:10:46,336 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:10:46,337 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:10:46,338 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:10:46,339 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:10:46,340 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:10:46,341 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:10:46,342 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:10:46,342 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:10:46,343 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:10:46,344 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:10:46,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:10:46,346 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d54a50da-ea58-4221-9421-697781ecad16/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 21:10:46,381 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:10:46,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:10:46,388 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:10:46,388 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:10:46,389 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:10:46,389 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:10:46,390 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:10:46,390 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:10:46,391 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:10:46,391 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:10:46,391 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 21:10:46,391 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 21:10:46,391 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:10:46,392 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 21:10:46,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:10:46,392 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:10:46,392 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:10:46,392 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:10:46,393 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 21:10:46,393 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 21:10:46,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:10:46,393 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:10:46,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:10:46,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:10:46,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:10:46,394 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:10:46,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:10:46,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:10:46,395 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:10:46,395 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:10:46,396 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:10:46,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:10:46,396 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:10:46,396 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:10:46,396 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:10:46,397 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_d54a50da-ea58-4221-9421-697781ecad16/bin/uautomizer-Dbtcem3rbc/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d54a50da-ea58-4221-9421-697781ecad16/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6dd4f5b1ff018649ffc6fcf6c400dcf6859c8fbe22bc4e1d68608a723e1e2f9d [2022-11-02 21:10:46,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:10:46,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:10:46,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:10:46,713 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:10:46,714 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:10:46,716 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d54a50da-ea58-4221-9421-697781ecad16/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2022-11-02 21:10:46,804 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d54a50da-ea58-4221-9421-697781ecad16/bin/uautomizer-Dbtcem3rbc/data/8a5faf902/98a6d3384709447aaa76acc2968a0392/FLAG4120fb578 [2022-11-02 21:10:47,392 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:10:47,393 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d54a50da-ea58-4221-9421-697781ecad16/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i [2022-11-02 21:10:47,407 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d54a50da-ea58-4221-9421-697781ecad16/bin/uautomizer-Dbtcem3rbc/data/8a5faf902/98a6d3384709447aaa76acc2968a0392/FLAG4120fb578 [2022-11-02 21:10:47,683 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d54a50da-ea58-4221-9421-697781ecad16/bin/uautomizer-Dbtcem3rbc/data/8a5faf902/98a6d3384709447aaa76acc2968a0392 [2022-11-02 21:10:47,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:10:47,688 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:10:47,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:10:47,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:10:47,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:10:47,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:10:47" (1/1) ... [2022-11-02 21:10:47,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38d6a591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:47, skipping insertion in model container [2022-11-02 21:10:47,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:10:47" (1/1) ... [2022-11-02 21:10:47,712 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:10:47,752 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:10:47,988 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d54a50da-ea58-4221-9421-697781ecad16/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i[1103,1116] [2022-11-02 21:10:48,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:10:48,183 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:10:48,198 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d54a50da-ea58-4221-9421-697781ecad16/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_2_pos.i[1103,1116] [2022-11-02 21:10:48,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:10:48,268 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:10:48,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:48 WrapperNode [2022-11-02 21:10:48,269 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:10:48,271 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:10:48,271 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:10:48,271 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:10:48,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:48" (1/1) ... [2022-11-02 21:10:48,296 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:48" (1/1) ... [2022-11-02 21:10:48,326 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2022-11-02 21:10:48,326 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:10:48,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:10:48,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:10:48,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:10:48,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:48" (1/1) ... [2022-11-02 21:10:48,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:48" (1/1) ... [2022-11-02 21:10:48,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:48" (1/1) ... [2022-11-02 21:10:48,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:48" (1/1) ... [2022-11-02 21:10:48,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:48" (1/1) ... [2022-11-02 21:10:48,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:48" (1/1) ... [2022-11-02 21:10:48,353 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:48" (1/1) ... [2022-11-02 21:10:48,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:48" (1/1) ... [2022-11-02 21:10:48,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:10:48,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:10:48,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:10:48,359 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:10:48,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:48" (1/1) ... [2022-11-02 21:10:48,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:10:48,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d54a50da-ea58-4221-9421-697781ecad16/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:10:48,392 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d54a50da-ea58-4221-9421-697781ecad16/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:10:48,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d54a50da-ea58-4221-9421-697781ecad16/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:10:48,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 21:10:48,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:10:48,444 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 21:10:48,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:10:48,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 21:10:48,445 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-02 21:10:48,445 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-02 21:10:48,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 21:10:48,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:10:48,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:10:48,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:10:48,448 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-02 21:10:48,594 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:10:48,596 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:10:48,883 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:10:48,898 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:10:48,898 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 21:10:48,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:10:48 BoogieIcfgContainer [2022-11-02 21:10:48,901 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:10:48,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:10:48,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:10:48,912 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:10:48,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:10:47" (1/3) ... [2022-11-02 21:10:48,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c807325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:10:48, skipping insertion in model container [2022-11-02 21:10:48,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:48" (2/3) ... [2022-11-02 21:10:48,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c807325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:10:48, skipping insertion in model container [2022-11-02 21:10:48,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:10:48" (3/3) ... [2022-11-02 21:10:48,917 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_2_pos.i [2022-11-02 21:10:48,930 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 21:10:48,943 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:10:48,944 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-02 21:10:48,944 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 21:10:49,067 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-02 21:10:49,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 89 transitions, 186 flow [2022-11-02 21:10:49,227 INFO L130 PetriNetUnfolder]: 1/88 cut-off events. [2022-11-02 21:10:49,228 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 21:10:49,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 88 events. 1/88 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2022-11-02 21:10:49,231 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 89 transitions, 186 flow [2022-11-02 21:10:49,236 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 80 transitions, 163 flow [2022-11-02 21:10:49,250 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:10:49,267 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;@3e0ef63d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:10:49,267 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-02 21:10:49,336 INFO L130 PetriNetUnfolder]: 0/42 cut-off events. [2022-11-02 21:10:49,336 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 21:10:49,337 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:10:49,338 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:10:49,339 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:10:49,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:49,346 INFO L85 PathProgramCache]: Analyzing trace with hash -525477546, now seen corresponding path program 1 times [2022-11-02 21:10:49,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:49,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275229894] [2022-11-02 21:10:49,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:49,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:49,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:49,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:10:49,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:49,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275229894] [2022-11-02 21:10:49,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275229894] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:49,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:10:49,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:10:49,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076485039] [2022-11-02 21:10:49,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:49,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:10:49,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:49,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:10:49,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:10:49,819 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 89 [2022-11-02 21:10:49,823 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 80 transitions, 163 flow. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:49,823 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:10:49,824 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 89 [2022-11-02 21:10:49,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:10:49,945 INFO L130 PetriNetUnfolder]: 21/245 cut-off events. [2022-11-02 21:10:49,945 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 21:10:49,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 245 events. 21/245 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 999 event pairs, 5 based on Foata normal form. 13/223 useless extension candidates. Maximal degree in co-relation 272. Up to 33 conditions per place. [2022-11-02 21:10:49,949 INFO L137 encePairwiseOnDemand]: 83/89 looper letters, 13 selfloop transitions, 4 changer transitions 0/85 dead transitions. [2022-11-02 21:10:49,950 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 85 transitions, 207 flow [2022-11-02 21:10:49,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:10:49,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:10:49,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2022-11-02 21:10:49,968 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9288389513108615 [2022-11-02 21:10:49,969 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 248 transitions. [2022-11-02 21:10:49,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 248 transitions. [2022-11-02 21:10:49,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:10:49,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 248 transitions. [2022-11-02 21:10:49,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:49,985 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:49,986 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:49,988 INFO L175 Difference]: Start difference. First operand has 83 places, 80 transitions, 163 flow. Second operand 3 states and 248 transitions. [2022-11-02 21:10:49,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 85 transitions, 207 flow [2022-11-02 21:10:49,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 85 transitions, 206 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:10:49,998 INFO L231 Difference]: Finished difference. Result has 85 places, 81 transitions, 188 flow [2022-11-02 21:10:50,001 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=188, PETRI_PLACES=85, PETRI_TRANSITIONS=81} [2022-11-02 21:10:50,006 INFO L287 CegarLoopForPetriNet]: 83 programPoint places, 2 predicate places. [2022-11-02 21:10:50,006 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 81 transitions, 188 flow [2022-11-02 21:10:50,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:50,007 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:10:50,007 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:10:50,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:10:50,008 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:10:50,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:50,009 INFO L85 PathProgramCache]: Analyzing trace with hash 2101703583, now seen corresponding path program 1 times [2022-11-02 21:10:50,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:50,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818646859] [2022-11-02 21:10:50,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:50,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:50,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:50,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:10:50,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:50,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818646859] [2022-11-02 21:10:50,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818646859] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:50,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:10:50,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:10:50,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254718115] [2022-11-02 21:10:50,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:50,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:10:50,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:50,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:10:50,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:10:50,211 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 89 [2022-11-02 21:10:50,212 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 81 transitions, 188 flow. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:50,212 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:10:50,213 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 89 [2022-11-02 21:10:50,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:10:50,348 INFO L130 PetriNetUnfolder]: 25/283 cut-off events. [2022-11-02 21:10:50,348 INFO L131 PetriNetUnfolder]: For 49/51 co-relation queries the response was YES. [2022-11-02 21:10:50,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 418 conditions, 283 events. 25/283 cut-off events. For 49/51 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1386 event pairs, 11 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 379. Up to 58 conditions per place. [2022-11-02 21:10:50,355 INFO L137 encePairwiseOnDemand]: 84/89 looper letters, 16 selfloop transitions, 5 changer transitions 0/87 dead transitions. [2022-11-02 21:10:50,356 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 87 transitions, 254 flow [2022-11-02 21:10:50,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:10:50,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:10:50,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 240 transitions. [2022-11-02 21:10:50,364 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.898876404494382 [2022-11-02 21:10:50,364 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 240 transitions. [2022-11-02 21:10:50,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 240 transitions. [2022-11-02 21:10:50,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:10:50,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 240 transitions. [2022-11-02 21:10:50,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:50,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:50,370 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:50,370 INFO L175 Difference]: Start difference. First operand has 85 places, 81 transitions, 188 flow. Second operand 3 states and 240 transitions. [2022-11-02 21:10:50,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 87 transitions, 254 flow [2022-11-02 21:10:50,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 87 transitions, 242 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:10:50,375 INFO L231 Difference]: Finished difference. Result has 87 places, 84 transitions, 216 flow [2022-11-02 21:10:50,376 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=87, PETRI_TRANSITIONS=84} [2022-11-02 21:10:50,377 INFO L287 CegarLoopForPetriNet]: 83 programPoint places, 4 predicate places. [2022-11-02 21:10:50,377 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 84 transitions, 216 flow [2022-11-02 21:10:50,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:50,378 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:10:50,378 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:10:50,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:10:50,379 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:10:50,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:50,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1345557656, now seen corresponding path program 1 times [2022-11-02 21:10:50,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:50,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624340935] [2022-11-02 21:10:50,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:50,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:50,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:50,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:10:50,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:50,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624340935] [2022-11-02 21:10:50,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624340935] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:50,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:10:50,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:10:50,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208056800] [2022-11-02 21:10:50,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:50,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:10:50,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:50,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:10:50,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:10:50,641 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 89 [2022-11-02 21:10:50,642 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 84 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:50,642 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:10:50,642 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 89 [2022-11-02 21:10:50,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:10:50,776 INFO L130 PetriNetUnfolder]: 5/173 cut-off events. [2022-11-02 21:10:50,776 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-11-02 21:10:50,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 173 events. 5/173 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 414 event pairs, 2 based on Foata normal form. 4/167 useless extension candidates. Maximal degree in co-relation 198. Up to 24 conditions per place. [2022-11-02 21:10:50,780 INFO L137 encePairwiseOnDemand]: 82/89 looper letters, 11 selfloop transitions, 7 changer transitions 0/81 dead transitions. [2022-11-02 21:10:50,780 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 81 transitions, 228 flow [2022-11-02 21:10:50,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:10:50,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:10:50,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 234 transitions. [2022-11-02 21:10:50,784 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8764044943820225 [2022-11-02 21:10:50,785 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 234 transitions. [2022-11-02 21:10:50,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 234 transitions. [2022-11-02 21:10:50,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:10:50,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 234 transitions. [2022-11-02 21:10:50,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:50,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:50,793 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:50,793 INFO L175 Difference]: Start difference. First operand has 87 places, 84 transitions, 216 flow. Second operand 3 states and 234 transitions. [2022-11-02 21:10:50,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 81 transitions, 228 flow [2022-11-02 21:10:50,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 81 transitions, 210 flow, removed 3 selfloop flow, removed 4 redundant places. [2022-11-02 21:10:50,810 INFO L231 Difference]: Finished difference. Result has 84 places, 80 transitions, 197 flow [2022-11-02 21:10:50,810 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=197, PETRI_PLACES=84, PETRI_TRANSITIONS=80} [2022-11-02 21:10:50,814 INFO L287 CegarLoopForPetriNet]: 83 programPoint places, 1 predicate places. [2022-11-02 21:10:50,814 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 80 transitions, 197 flow [2022-11-02 21:10:50,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:50,815 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:10:50,815 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:10:50,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:10:50,815 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:10:50,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:50,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1878320092, now seen corresponding path program 1 times [2022-11-02 21:10:50,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:50,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293182511] [2022-11-02 21:10:50,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:50,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:50,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:50,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:10:50,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:50,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293182511] [2022-11-02 21:10:50,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293182511] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:50,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:10:50,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:10:50,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159111372] [2022-11-02 21:10:50,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:50,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:10:50,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:50,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:10:50,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:10:50,967 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 89 [2022-11-02 21:10:50,968 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 80 transitions, 197 flow. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:50,968 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:10:50,968 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 89 [2022-11-02 21:10:50,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:10:51,027 INFO L130 PetriNetUnfolder]: 3/156 cut-off events. [2022-11-02 21:10:51,028 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-02 21:10:51,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 156 events. 3/156 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 351 event pairs, 1 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 186. Up to 19 conditions per place. [2022-11-02 21:10:51,029 INFO L137 encePairwiseOnDemand]: 86/89 looper letters, 8 selfloop transitions, 3 changer transitions 1/79 dead transitions. [2022-11-02 21:10:51,029 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 79 transitions, 217 flow [2022-11-02 21:10:51,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:10:51,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 21:10:51,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 232 transitions. [2022-11-02 21:10:51,031 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8689138576779026 [2022-11-02 21:10:51,032 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 232 transitions. [2022-11-02 21:10:51,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 232 transitions. [2022-11-02 21:10:51,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:10:51,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 232 transitions. [2022-11-02 21:10:51,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:51,038 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:51,041 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:51,041 INFO L175 Difference]: Start difference. First operand has 84 places, 80 transitions, 197 flow. Second operand 3 states and 232 transitions. [2022-11-02 21:10:51,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 79 transitions, 217 flow [2022-11-02 21:10:51,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 79 transitions, 210 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-02 21:10:51,047 INFO L231 Difference]: Finished difference. Result has 84 places, 78 transitions, 192 flow [2022-11-02 21:10:51,048 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=192, PETRI_PLACES=84, PETRI_TRANSITIONS=78} [2022-11-02 21:10:51,050 INFO L287 CegarLoopForPetriNet]: 83 programPoint places, 1 predicate places. [2022-11-02 21:10:51,050 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 78 transitions, 192 flow [2022-11-02 21:10:51,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:51,058 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 21:10:51,058 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:10:51,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 21:10:51,061 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-11-02 21:10:51,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:51,064 INFO L85 PathProgramCache]: Analyzing trace with hash -77672354, now seen corresponding path program 1 times [2022-11-02 21:10:51,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:51,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002829764] [2022-11-02 21:10:51,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:51,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:51,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:51,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:10:51,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:51,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002829764] [2022-11-02 21:10:51,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002829764] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:51,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:10:51,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:10:51,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11642309] [2022-11-02 21:10:51,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:51,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:10:51,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:51,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:10:51,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:10:51,744 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 89 [2022-11-02 21:10:51,745 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 78 transitions, 192 flow. Second operand has 6 states, 6 states have (on average 74.66666666666667) internal successors, (448), 6 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:51,746 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 21:10:51,746 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 89 [2022-11-02 21:10:51,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 21:10:51,793 INFO L130 PetriNetUnfolder]: 3/149 cut-off events. [2022-11-02 21:10:51,794 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-02 21:10:51,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 149 events. 3/149 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 310 event pairs, 1 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 171. Up to 14 conditions per place. [2022-11-02 21:10:51,795 INFO L137 encePairwiseOnDemand]: 84/89 looper letters, 0 selfloop transitions, 0 changer transitions 77/77 dead transitions. [2022-11-02 21:10:51,795 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 77 transitions, 210 flow [2022-11-02 21:10:51,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:10:51,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 21:10:51,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 449 transitions. [2022-11-02 21:10:51,797 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8408239700374532 [2022-11-02 21:10:51,798 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 449 transitions. [2022-11-02 21:10:51,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 449 transitions. [2022-11-02 21:10:51,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 21:10:51,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 449 transitions. [2022-11-02 21:10:51,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 74.83333333333333) internal successors, (449), 6 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:51,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 89.0) internal successors, (623), 7 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:51,803 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 89.0) internal successors, (623), 7 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:51,803 INFO L175 Difference]: Start difference. First operand has 84 places, 78 transitions, 192 flow. Second operand 6 states and 449 transitions. [2022-11-02 21:10:51,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 77 transitions, 210 flow [2022-11-02 21:10:51,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 77 transitions, 204 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-02 21:10:51,806 INFO L231 Difference]: Finished difference. Result has 85 places, 0 transitions, 0 flow [2022-11-02 21:10:51,806 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=85, PETRI_TRANSITIONS=0} [2022-11-02 21:10:51,807 INFO L287 CegarLoopForPetriNet]: 83 programPoint places, 2 predicate places. [2022-11-02 21:10:51,807 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 0 transitions, 0 flow [2022-11-02 21:10:51,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.66666666666667) internal successors, (448), 6 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:51,810 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2022-11-02 21:10:51,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2022-11-02 21:10:51,811 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-11-02 21:10:51,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2022-11-02 21:10:51,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2022-11-02 21:10:51,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2022-11-02 21:10:51,813 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2022-11-02 21:10:51,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 21:10:51,813 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-02 21:10:51,820 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-02 21:10:51,820 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 21:10:51,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:10:51 BasicIcfg [2022-11-02 21:10:51,827 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 21:10:51,827 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 21:10:51,828 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 21:10:51,828 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 21:10:51,828 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:10:48" (3/4) ... [2022-11-02 21:10:51,831 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-02 21:10:51,839 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-02 21:10:51,843 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-02 21:10:51,844 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-02 21:10:51,845 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-02 21:10:51,845 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-02 21:10:51,905 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d54a50da-ea58-4221-9421-697781ecad16/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 21:10:51,913 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 21:10:51,914 INFO L158 Benchmark]: Toolchain (without parser) took 4225.87ms. Allocated memory was 109.1MB in the beginning and 146.8MB in the end (delta: 37.7MB). Free memory was 71.4MB in the beginning and 104.1MB in the end (delta: -32.7MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2022-11-02 21:10:51,916 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 109.1MB. Free memory was 78.4MB in the beginning and 78.4MB in the end (delta: 28.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:10:51,916 INFO L158 Benchmark]: CACSL2BoogieTranslator took 579.23ms. Allocated memory is still 109.1MB. Free memory was 71.2MB in the beginning and 74.4MB in the end (delta: -3.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-02 21:10:51,917 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.92ms. Allocated memory is still 109.1MB. Free memory was 74.4MB in the beginning and 72.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:10:51,918 INFO L158 Benchmark]: Boogie Preprocessor took 30.01ms. Allocated memory is still 109.1MB. Free memory was 72.4MB in the beginning and 70.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:10:51,918 INFO L158 Benchmark]: RCFGBuilder took 543.25ms. Allocated memory is still 109.1MB. Free memory was 70.8MB in the beginning and 57.1MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-02 21:10:51,918 INFO L158 Benchmark]: TraceAbstraction took 2919.91ms. Allocated memory was 109.1MB in the beginning and 146.8MB in the end (delta: 37.7MB). Free memory was 56.6MB in the beginning and 106.2MB in the end (delta: -49.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 21:10:51,919 INFO L158 Benchmark]: Witness Printer took 86.27ms. Allocated memory is still 146.8MB. Free memory was 106.2MB in the beginning and 104.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 21:10:51,921 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 109.1MB. Free memory was 78.4MB in the beginning and 78.4MB in the end (delta: 28.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 579.23ms. Allocated memory is still 109.1MB. Free memory was 71.2MB in the beginning and 74.4MB in the end (delta: -3.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.92ms. Allocated memory is still 109.1MB. Free memory was 74.4MB in the beginning and 72.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.01ms. Allocated memory is still 109.1MB. Free memory was 72.4MB in the beginning and 70.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 543.25ms. Allocated memory is still 109.1MB. Free memory was 70.8MB in the beginning and 57.1MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2919.91ms. Allocated memory was 109.1MB in the beginning and 146.8MB in the end (delta: 37.7MB). Free memory was 56.6MB in the beginning and 106.2MB in the end (delta: -49.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 86.27ms. Allocated memory is still 146.8MB. Free memory was 106.2MB in the beginning and 104.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 701]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 687]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 690]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 115 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 41 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 76 IncrementalHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 41 mSDtfsCounter, 76 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=216occurred in iteration=2, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 225 NumberOfCodeBlocks, 225 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 343 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-02 21:10:51,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d54a50da-ea58-4221-9421-697781ecad16/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE