./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49564104-c6da-463a-b9a5-1c58e41448f9/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49564104-c6da-463a-b9a5-1c58e41448f9/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_49564104-c6da-463a-b9a5-1c58e41448f9/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49564104-c6da-463a-b9a5-1c58e41448f9/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49564104-c6da-463a-b9a5-1c58e41448f9/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_49564104-c6da-463a-b9a5-1c58e41448f9/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 5810db9e04eaaf68f2d5e8f47b6f306a494391110fbd2d6436879e3ba39873f3 --- 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 19:55:17,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 19:55:17,409 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 19:55:17,440 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 19:55:17,441 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 19:55:17,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 19:55:17,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 19:55:17,447 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 19:55:17,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 19:55:17,450 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 19:55:17,452 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 19:55:17,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 19:55:17,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 19:55:17,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 19:55:17,457 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 19:55:17,460 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 19:55:17,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 19:55:17,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 19:55:17,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 19:55:17,468 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 19:55:17,470 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 19:55:17,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 19:55:17,474 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 19:55:17,475 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 19:55:17,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 19:55:17,481 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 19:55:17,481 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 19:55:17,483 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 19:55:17,483 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 19:55:17,485 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 19:55:17,485 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 19:55:17,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 19:55:17,498 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 19:55:17,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 19:55:17,501 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 19:55:17,502 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 19:55:17,503 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 19:55:17,503 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 19:55:17,503 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 19:55:17,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 19:55:17,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 19:55:17,507 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49564104-c6da-463a-b9a5-1c58e41448f9/bin/uautomizer-Dbtcem3rbc/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-02 19:55:17,562 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 19:55:17,570 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 19:55:17,570 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 19:55:17,571 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 19:55:17,572 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 19:55:17,572 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 19:55:17,573 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 19:55:17,573 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 19:55:17,574 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 19:55:17,574 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 19:55:17,575 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 19:55:17,576 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 19:55:17,576 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 19:55:17,576 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 19:55:17,576 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 19:55:17,577 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 19:55:17,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 19:55:17,577 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 19:55:17,577 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-02 19:55:17,578 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 19:55:17,578 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 19:55:17,578 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 19:55:17,578 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 19:55:17,579 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 19:55:17,579 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 19:55:17,579 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 19:55:17,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 19:55:17,580 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 19:55:17,580 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 19:55:17,580 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 19:55:17,582 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 19:55:17,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 19:55:17,583 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 19:55:17,583 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 19:55:17,583 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 19:55:17,584 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_49564104-c6da-463a-b9a5-1c58e41448f9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49564104-c6da-463a-b9a5-1c58e41448f9/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5810db9e04eaaf68f2d5e8f47b6f306a494391110fbd2d6436879e3ba39873f3 [2022-11-02 19:55:17,917 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 19:55:17,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 19:55:17,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 19:55:17,949 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 19:55:17,950 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 19:55:17,952 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49564104-c6da-463a-b9a5-1c58e41448f9/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2022-11-02 19:55:18,061 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49564104-c6da-463a-b9a5-1c58e41448f9/bin/uautomizer-Dbtcem3rbc/data/2576872dd/b60242bc7889485a8786d60348e46426/FLAGd1398f0d2 [2022-11-02 19:55:18,714 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 19:55:18,720 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49564104-c6da-463a-b9a5-1c58e41448f9/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i [2022-11-02 19:55:18,734 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49564104-c6da-463a-b9a5-1c58e41448f9/bin/uautomizer-Dbtcem3rbc/data/2576872dd/b60242bc7889485a8786d60348e46426/FLAGd1398f0d2 [2022-11-02 19:55:18,984 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49564104-c6da-463a-b9a5-1c58e41448f9/bin/uautomizer-Dbtcem3rbc/data/2576872dd/b60242bc7889485a8786d60348e46426 [2022-11-02 19:55:18,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 19:55:18,990 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 19:55:18,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 19:55:18,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 19:55:18,998 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 19:55:18,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 07:55:18" (1/1) ... [2022-11-02 19:55:19,001 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c454bd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:19, skipping insertion in model container [2022-11-02 19:55:19,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 07:55:18" (1/1) ... [2022-11-02 19:55:19,011 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 19:55:19,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 19:55:19,360 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_49564104-c6da-463a-b9a5-1c58e41448f9/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i[1103,1116] [2022-11-02 19:55:19,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 19:55:19,643 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 19:55:19,663 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_49564104-c6da-463a-b9a5-1c58e41448f9/sv-benchmarks/c/goblint-regression/13-privatized_19-publish-precision_unknown_1_neg.i[1103,1116] [2022-11-02 19:55:19,724 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 19:55:19,774 INFO L208 MainTranslator]: Completed translation [2022-11-02 19:55:19,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:19 WrapperNode [2022-11-02 19:55:19,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 19:55:19,776 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 19:55:19,776 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 19:55:19,776 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 19:55:19,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:19" (1/1) ... [2022-11-02 19:55:19,815 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:19" (1/1) ... [2022-11-02 19:55:19,856 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2022-11-02 19:55:19,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 19:55:19,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 19:55:19,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 19:55:19,858 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 19:55:19,869 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:19" (1/1) ... [2022-11-02 19:55:19,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:19" (1/1) ... [2022-11-02 19:55:19,886 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:19" (1/1) ... [2022-11-02 19:55:19,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:19" (1/1) ... [2022-11-02 19:55:19,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:19" (1/1) ... [2022-11-02 19:55:19,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:19" (1/1) ... [2022-11-02 19:55:19,896 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:19" (1/1) ... [2022-11-02 19:55:19,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:19" (1/1) ... [2022-11-02 19:55:19,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 19:55:19,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 19:55:19,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 19:55:19,916 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 19:55:19,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:19" (1/1) ... [2022-11-02 19:55:19,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 19:55:19,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49564104-c6da-463a-b9a5-1c58e41448f9/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 19:55:19,966 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49564104-c6da-463a-b9a5-1c58e41448f9/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 19:55:19,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49564104-c6da-463a-b9a5-1c58e41448f9/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 19:55:20,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 19:55:20,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 19:55:20,020 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-02 19:55:20,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 19:55:20,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 19:55:20,023 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-02 19:55:20,024 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-02 19:55:20,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 19:55:20,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 19:55:20,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 19:55:20,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 19:55:20,026 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 19:55:20,285 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 19:55:20,287 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 19:55:20,611 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 19:55:20,619 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 19:55:20,623 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-02 19:55:20,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 07:55:20 BoogieIcfgContainer [2022-11-02 19:55:20,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 19:55:20,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 19:55:20,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 19:55:20,637 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 19:55:20,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 07:55:18" (1/3) ... [2022-11-02 19:55:20,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bcc5859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 07:55:20, skipping insertion in model container [2022-11-02 19:55:20,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 07:55:19" (2/3) ... [2022-11-02 19:55:20,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bcc5859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 07:55:20, skipping insertion in model container [2022-11-02 19:55:20,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 07:55:20" (3/3) ... [2022-11-02 19:55:20,641 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_neg.i [2022-11-02 19:55:20,652 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-02 19:55:20,664 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 19:55:20,665 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-02 19:55:20,665 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-02 19:55:20,775 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-02 19:55:20,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 89 transitions, 186 flow [2022-11-02 19:55:20,925 INFO L130 PetriNetUnfolder]: 1/88 cut-off events. [2022-11-02 19:55:20,926 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 19:55:20,929 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 19:55:20,929 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 89 transitions, 186 flow [2022-11-02 19:55:20,934 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 80 transitions, 163 flow [2022-11-02 19:55:20,965 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 19:55:20,975 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;@3e2a3c45, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 19:55:20,975 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-11-02 19:55:21,014 INFO L130 PetriNetUnfolder]: 0/42 cut-off events. [2022-11-02 19:55:21,014 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-02 19:55:21,014 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:55:21,015 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 19:55:21,016 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 19:55:21,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:55:21,034 INFO L85 PathProgramCache]: Analyzing trace with hash -525477546, now seen corresponding path program 1 times [2022-11-02 19:55:21,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:55:21,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289648345] [2022-11-02 19:55:21,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:55:21,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:55:21,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:55:21,358 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 19:55:21,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:55:21,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289648345] [2022-11-02 19:55:21,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289648345] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:55:21,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:55:21,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:55:21,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740071416] [2022-11-02 19:55:21,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:55:21,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:55:21,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:55:21,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:55:21,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:55:21,423 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 89 [2022-11-02 19:55:21,428 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 19:55:21,429 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:55:21,429 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 89 [2022-11-02 19:55:21,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:55:21,622 INFO L130 PetriNetUnfolder]: 21/245 cut-off events. [2022-11-02 19:55:21,623 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-02 19:55:21,625 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 19:55:21,629 INFO L137 encePairwiseOnDemand]: 83/89 looper letters, 13 selfloop transitions, 4 changer transitions 0/85 dead transitions. [2022-11-02 19:55:21,630 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 85 transitions, 207 flow [2022-11-02 19:55:21,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:55:21,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:55:21,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2022-11-02 19:55:21,651 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9288389513108615 [2022-11-02 19:55:21,653 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 248 transitions. [2022-11-02 19:55:21,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 248 transitions. [2022-11-02 19:55:21,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:55:21,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 248 transitions. [2022-11-02 19:55:21,668 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 19:55:21,679 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 19:55:21,680 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 19:55:21,682 INFO L175 Difference]: Start difference. First operand has 83 places, 80 transitions, 163 flow. Second operand 3 states and 248 transitions. [2022-11-02 19:55:21,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 85 transitions, 207 flow [2022-11-02 19:55:21,691 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 19:55:21,698 INFO L231 Difference]: Finished difference. Result has 85 places, 81 transitions, 188 flow [2022-11-02 19:55:21,701 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 19:55:21,705 INFO L287 CegarLoopForPetriNet]: 83 programPoint places, 2 predicate places. [2022-11-02 19:55:21,706 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 81 transitions, 188 flow [2022-11-02 19:55:21,706 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 19:55:21,706 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:55:21,707 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 19:55:21,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 19:55:21,708 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 19:55:21,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:55:21,709 INFO L85 PathProgramCache]: Analyzing trace with hash 2101703583, now seen corresponding path program 1 times [2022-11-02 19:55:21,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:55:21,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850387783] [2022-11-02 19:55:21,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:55:21,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:55:21,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:55:21,840 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 19:55:21,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:55:21,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850387783] [2022-11-02 19:55:21,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850387783] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:55:21,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:55:21,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:55:21,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654493896] [2022-11-02 19:55:21,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:55:21,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:55:21,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:55:21,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:55:21,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:55:21,846 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 89 [2022-11-02 19:55:21,847 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 19:55:21,847 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:55:21,847 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 89 [2022-11-02 19:55:21,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:55:21,956 INFO L130 PetriNetUnfolder]: 25/283 cut-off events. [2022-11-02 19:55:21,956 INFO L131 PetriNetUnfolder]: For 49/51 co-relation queries the response was YES. [2022-11-02 19:55:21,957 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 19:55:21,963 INFO L137 encePairwiseOnDemand]: 84/89 looper letters, 16 selfloop transitions, 5 changer transitions 0/87 dead transitions. [2022-11-02 19:55:21,963 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 87 transitions, 254 flow [2022-11-02 19:55:21,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:55:21,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:55:21,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 240 transitions. [2022-11-02 19:55:21,970 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.898876404494382 [2022-11-02 19:55:21,970 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 240 transitions. [2022-11-02 19:55:21,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 240 transitions. [2022-11-02 19:55:21,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:55:21,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 240 transitions. [2022-11-02 19:55:21,972 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 19:55:21,973 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 19:55:21,974 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 19:55:21,974 INFO L175 Difference]: Start difference. First operand has 85 places, 81 transitions, 188 flow. Second operand 3 states and 240 transitions. [2022-11-02 19:55:21,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 87 transitions, 254 flow [2022-11-02 19:55:21,976 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 19:55:21,978 INFO L231 Difference]: Finished difference. Result has 87 places, 84 transitions, 216 flow [2022-11-02 19:55:21,979 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 19:55:21,980 INFO L287 CegarLoopForPetriNet]: 83 programPoint places, 4 predicate places. [2022-11-02 19:55:21,980 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 84 transitions, 216 flow [2022-11-02 19:55:21,980 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 19:55:21,980 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:55:21,981 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 19:55:21,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 19:55:21,981 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 19:55:21,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:55:21,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1345557656, now seen corresponding path program 1 times [2022-11-02 19:55:21,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:55:21,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333226398] [2022-11-02 19:55:21,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:55:21,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:55:22,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:55:22,220 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 19:55:22,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:55:22,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333226398] [2022-11-02 19:55:22,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333226398] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:55:22,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:55:22,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 19:55:22,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920672776] [2022-11-02 19:55:22,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:55:22,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:55:22,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:55:22,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:55:22,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:55:22,224 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 89 [2022-11-02 19:55:22,225 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 19:55:22,225 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:55:22,225 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 89 [2022-11-02 19:55:22,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:55:22,301 INFO L130 PetriNetUnfolder]: 5/173 cut-off events. [2022-11-02 19:55:22,301 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-11-02 19:55:22,302 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 19:55:22,303 INFO L137 encePairwiseOnDemand]: 82/89 looper letters, 11 selfloop transitions, 7 changer transitions 0/81 dead transitions. [2022-11-02 19:55:22,303 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 81 transitions, 228 flow [2022-11-02 19:55:22,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:55:22,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:55:22,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 234 transitions. [2022-11-02 19:55:22,305 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8764044943820225 [2022-11-02 19:55:22,305 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 234 transitions. [2022-11-02 19:55:22,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 234 transitions. [2022-11-02 19:55:22,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:55:22,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 234 transitions. [2022-11-02 19:55:22,307 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 19:55:22,308 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 19:55:22,309 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 19:55:22,309 INFO L175 Difference]: Start difference. First operand has 87 places, 84 transitions, 216 flow. Second operand 3 states and 234 transitions. [2022-11-02 19:55:22,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 81 transitions, 228 flow [2022-11-02 19:55:22,311 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 19:55:22,313 INFO L231 Difference]: Finished difference. Result has 84 places, 80 transitions, 197 flow [2022-11-02 19:55:22,313 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 19:55:22,314 INFO L287 CegarLoopForPetriNet]: 83 programPoint places, 1 predicate places. [2022-11-02 19:55:22,314 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 80 transitions, 197 flow [2022-11-02 19:55:22,315 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 19:55:22,315 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:55:22,315 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 19:55:22,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 19:55:22,316 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 19:55:22,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:55:22,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1878320092, now seen corresponding path program 1 times [2022-11-02 19:55:22,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:55:22,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371648731] [2022-11-02 19:55:22,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:55:22,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:55:22,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:55:22,383 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 19:55:22,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:55:22,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371648731] [2022-11-02 19:55:22,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371648731] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:55:22,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:55:22,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 19:55:22,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150307829] [2022-11-02 19:55:22,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:55:22,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 19:55:22,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:55:22,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 19:55:22,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 19:55:22,388 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 89 [2022-11-02 19:55:22,388 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 19:55:22,388 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:55:22,389 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 89 [2022-11-02 19:55:22,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:55:22,459 INFO L130 PetriNetUnfolder]: 3/156 cut-off events. [2022-11-02 19:55:22,460 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-02 19:55:22,461 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 19:55:22,462 INFO L137 encePairwiseOnDemand]: 86/89 looper letters, 8 selfloop transitions, 3 changer transitions 1/79 dead transitions. [2022-11-02 19:55:22,462 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 79 transitions, 217 flow [2022-11-02 19:55:22,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 19:55:22,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-02 19:55:22,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 232 transitions. [2022-11-02 19:55:22,465 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8689138576779026 [2022-11-02 19:55:22,465 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 232 transitions. [2022-11-02 19:55:22,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 232 transitions. [2022-11-02 19:55:22,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:55:22,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 232 transitions. [2022-11-02 19:55:22,468 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 19:55:22,472 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 19:55:22,476 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 19:55:22,476 INFO L175 Difference]: Start difference. First operand has 84 places, 80 transitions, 197 flow. Second operand 3 states and 232 transitions. [2022-11-02 19:55:22,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 79 transitions, 217 flow [2022-11-02 19:55:22,478 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 19:55:22,482 INFO L231 Difference]: Finished difference. Result has 84 places, 78 transitions, 192 flow [2022-11-02 19:55:22,483 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 19:55:22,485 INFO L287 CegarLoopForPetriNet]: 83 programPoint places, 1 predicate places. [2022-11-02 19:55:22,485 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 78 transitions, 192 flow [2022-11-02 19:55:22,486 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 19:55:22,495 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-11-02 19:55:22,495 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 19:55:22,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 19:55:22,497 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 19:55:22,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 19:55:22,499 INFO L85 PathProgramCache]: Analyzing trace with hash -77672354, now seen corresponding path program 1 times [2022-11-02 19:55:22,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 19:55:22,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372250583] [2022-11-02 19:55:22,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 19:55:22,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 19:55:22,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 19:55:23,227 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 19:55:23,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 19:55:23,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372250583] [2022-11-02 19:55:23,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372250583] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 19:55:23,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 19:55:23,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 19:55:23,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984473629] [2022-11-02 19:55:23,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 19:55:23,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 19:55:23,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 19:55:23,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 19:55:23,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-02 19:55:23,233 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 89 [2022-11-02 19:55:23,234 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 19:55:23,235 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-02 19:55:23,235 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 89 [2022-11-02 19:55:23,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-02 19:55:23,320 INFO L130 PetriNetUnfolder]: 3/149 cut-off events. [2022-11-02 19:55:23,320 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-02 19:55:23,320 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 19:55:23,321 INFO L137 encePairwiseOnDemand]: 84/89 looper letters, 0 selfloop transitions, 0 changer transitions 77/77 dead transitions. [2022-11-02 19:55:23,321 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 77 transitions, 210 flow [2022-11-02 19:55:23,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 19:55:23,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-02 19:55:23,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 449 transitions. [2022-11-02 19:55:23,324 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8408239700374532 [2022-11-02 19:55:23,324 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 449 transitions. [2022-11-02 19:55:23,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 449 transitions. [2022-11-02 19:55:23,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-02 19:55:23,326 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 449 transitions. [2022-11-02 19:55:23,327 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 19:55:23,329 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 19:55:23,330 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 19:55:23,330 INFO L175 Difference]: Start difference. First operand has 84 places, 78 transitions, 192 flow. Second operand 6 states and 449 transitions. [2022-11-02 19:55:23,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 77 transitions, 210 flow [2022-11-02 19:55:23,336 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 19:55:23,338 INFO L231 Difference]: Finished difference. Result has 85 places, 0 transitions, 0 flow [2022-11-02 19:55:23,338 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 19:55:23,339 INFO L287 CegarLoopForPetriNet]: 83 programPoint places, 2 predicate places. [2022-11-02 19:55:23,339 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 0 transitions, 0 flow [2022-11-02 19:55:23,340 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 19:55:23,343 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2022-11-02 19:55:23,343 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2022-11-02 19:55:23,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-11-02 19:55:23,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2022-11-02 19:55:23,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2022-11-02 19:55:23,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2022-11-02 19:55:23,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2022-11-02 19:55:23,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 19:55:23,345 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-02 19:55:23,352 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-02 19:55:23,352 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-02 19:55:23,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 07:55:23 BasicIcfg [2022-11-02 19:55:23,359 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-02 19:55:23,359 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-02 19:55:23,360 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-02 19:55:23,360 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-02 19:55:23,360 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 07:55:20" (3/4) ... [2022-11-02 19:55:23,363 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-02 19:55:23,371 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-11-02 19:55:23,375 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-02 19:55:23,375 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-02 19:55:23,376 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-02 19:55:23,376 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-02 19:55:23,416 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49564104-c6da-463a-b9a5-1c58e41448f9/bin/uautomizer-Dbtcem3rbc/witness.graphml [2022-11-02 19:55:23,416 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-02 19:55:23,417 INFO L158 Benchmark]: Toolchain (without parser) took 4427.17ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 91.6MB in the beginning and 118.1MB in the end (delta: -26.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 19:55:23,417 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 92.3MB. Free memory was 48.5MB in the beginning and 48.4MB in the end (delta: 77.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-02 19:55:23,418 INFO L158 Benchmark]: CACSL2BoogieTranslator took 782.03ms. Allocated memory is still 125.8MB. Free memory was 91.3MB in the beginning and 92.7MB in the end (delta: -1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-02 19:55:23,418 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.96ms. Allocated memory is still 125.8MB. Free memory was 92.7MB in the beginning and 90.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 19:55:23,419 INFO L158 Benchmark]: Boogie Preprocessor took 56.64ms. Allocated memory is still 125.8MB. Free memory was 90.5MB in the beginning and 89.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 19:55:23,419 INFO L158 Benchmark]: RCFGBuilder took 711.92ms. Allocated memory is still 125.8MB. Free memory was 89.0MB in the beginning and 75.7MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-02 19:55:23,420 INFO L158 Benchmark]: TraceAbstraction took 2727.01ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 74.8MB in the beginning and 120.2MB in the end (delta: -45.4MB). Peak memory consumption was 63.5MB. Max. memory is 16.1GB. [2022-11-02 19:55:23,420 INFO L158 Benchmark]: Witness Printer took 56.85ms. Allocated memory is still 151.0MB. Free memory was 120.2MB in the beginning and 118.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-02 19:55:23,423 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 92.3MB. Free memory was 48.5MB in the beginning and 48.4MB in the end (delta: 77.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 782.03ms. Allocated memory is still 125.8MB. Free memory was 91.3MB in the beginning and 92.7MB in the end (delta: -1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.96ms. Allocated memory is still 125.8MB. Free memory was 92.7MB in the beginning and 90.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.64ms. Allocated memory is still 125.8MB. Free memory was 90.5MB in the beginning and 89.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 711.92ms. Allocated memory is still 125.8MB. Free memory was 89.0MB in the beginning and 75.7MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2727.01ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 74.8MB in the beginning and 120.2MB in the end (delta: -45.4MB). Peak memory consumption was 63.5MB. Max. memory is 16.1GB. * Witness Printer took 56.85ms. Allocated memory is still 151.0MB. Free memory was 120.2MB in the beginning and 118.1MB 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: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.5s, 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, 0.2s 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, 0.1s SatisfiabilityAnalysisTime, 1.1s 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 19:55:23,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49564104-c6da-463a-b9a5-1c58e41448f9/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