./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_28-list2alloc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 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_10e59d6d-5ddd-41fc-9ccf-421ba7de3609/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10e59d6d-5ddd-41fc-9ccf-421ba7de3609/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10e59d6d-5ddd-41fc-9ccf-421ba7de3609/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10e59d6d-5ddd-41fc-9ccf-421ba7de3609/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_28-list2alloc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10e59d6d-5ddd-41fc-9ccf-421ba7de3609/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10e59d6d-5ddd-41fc-9ccf-421ba7de3609/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 318281cc312c05fd633ca0d066d65c4887939b5717e7fb2aba02dbd1a639e1ad --- 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-2329fc7 [2022-12-14 14:47:06,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:47:06,544 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:47:06,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:47:06,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:47:06,557 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:47:06,558 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:47:06,559 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:47:06,560 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:47:06,561 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:47:06,562 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:47:06,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:47:06,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:47:06,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:47:06,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:47:06,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:47:06,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:47:06,566 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:47:06,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:47:06,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:47:06,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:47:06,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:47:06,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:47:06,572 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:47:06,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:47:06,574 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:47:06,574 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:47:06,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:47:06,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:47:06,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:47:06,576 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:47:06,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:47:06,577 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:47:06,577 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:47:06,578 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:47:06,578 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:47:06,579 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:47:06,579 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:47:06,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:47:06,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:47:06,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:47:06,581 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10e59d6d-5ddd-41fc-9ccf-421ba7de3609/bin/utaipan-gh47qXpMRh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-12-14 14:47:06,595 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:47:06,595 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:47:06,595 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:47:06,595 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:47:06,596 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:47:06,596 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:47:06,596 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:47:06,596 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:47:06,596 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:47:06,596 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:47:06,600 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:47:06,601 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:47:06,601 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:47:06,602 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:47:06,602 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:47:06,603 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:47:06,603 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:47:06,603 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:47:06,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:47:06,604 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 14:47:06,604 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 14:47:06,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:47:06,604 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 14:47:06,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:47:06,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:47:06,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:47:06,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:47:06,605 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-14 14:47:06,605 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 14:47:06,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:47:06,606 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:47:06,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:47:06,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:47:06,606 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:47:06,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:47:06,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:47:06,607 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:47:06,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:47:06,607 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:47:06,607 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:47:06,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:47:06,608 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:47:06,608 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:47:06,608 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_10e59d6d-5ddd-41fc-9ccf-421ba7de3609/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10e59d6d-5ddd-41fc-9ccf-421ba7de3609/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 318281cc312c05fd633ca0d066d65c4887939b5717e7fb2aba02dbd1a639e1ad [2022-12-14 14:47:06,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:47:06,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:47:06,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:47:06,804 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:47:06,805 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:47:06,806 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10e59d6d-5ddd-41fc-9ccf-421ba7de3609/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/goblint-regression/09-regions_28-list2alloc.i [2022-12-14 14:47:09,430 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:47:09,638 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:47:09,639 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10e59d6d-5ddd-41fc-9ccf-421ba7de3609/sv-benchmarks/c/goblint-regression/09-regions_28-list2alloc.i [2022-12-14 14:47:09,653 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10e59d6d-5ddd-41fc-9ccf-421ba7de3609/bin/utaipan-gh47qXpMRh/data/88957315f/5c5fc54e29fd4a7ba871faf63027c80c/FLAG8c6530109 [2022-12-14 14:47:09,667 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10e59d6d-5ddd-41fc-9ccf-421ba7de3609/bin/utaipan-gh47qXpMRh/data/88957315f/5c5fc54e29fd4a7ba871faf63027c80c [2022-12-14 14:47:09,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:47:09,671 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:47:09,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:47:09,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:47:09,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:47:09,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:47:09" (1/1) ... [2022-12-14 14:47:09,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bcebeac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:09, skipping insertion in model container [2022-12-14 14:47:09,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:47:09" (1/1) ... [2022-12-14 14:47:09,685 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:47:09,725 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:47:10,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:47:10,182 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:47:10,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:47:10,283 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:47:10,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:10 WrapperNode [2022-12-14 14:47:10,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:47:10,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:47:10,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:47:10,285 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:47:10,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:10" (1/1) ... [2022-12-14 14:47:10,308 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:10" (1/1) ... [2022-12-14 14:47:10,329 INFO L138 Inliner]: procedures = 368, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 107 [2022-12-14 14:47:10,329 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:47:10,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:47:10,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:47:10,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:47:10,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:10" (1/1) ... [2022-12-14 14:47:10,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:10" (1/1) ... [2022-12-14 14:47:10,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:10" (1/1) ... [2022-12-14 14:47:10,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:10" (1/1) ... [2022-12-14 14:47:10,354 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:10" (1/1) ... [2022-12-14 14:47:10,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:10" (1/1) ... [2022-12-14 14:47:10,358 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:10" (1/1) ... [2022-12-14 14:47:10,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:10" (1/1) ... [2022-12-14 14:47:10,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:47:10,364 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:47:10,364 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:47:10,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:47:10,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:10" (1/1) ... [2022-12-14 14:47:10,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:47:10,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10e59d6d-5ddd-41fc-9ccf-421ba7de3609/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:47:10,393 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10e59d6d-5ddd-41fc-9ccf-421ba7de3609/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:47:10,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10e59d6d-5ddd-41fc-9ccf-421ba7de3609/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:47:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 14:47:10,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 14:47:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 14:47:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 14:47:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 14:47:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 14:47:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:47:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 14:47:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-14 14:47:10,432 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-14 14:47:10,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:47:10,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:47:10,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:47:10,433 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 14:47:10,546 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:47:10,547 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:47:10,787 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:47:10,793 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:47:10,793 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 14:47:10,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:47:10 BoogieIcfgContainer [2022-12-14 14:47:10,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:47:10,797 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:47:10,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:47:10,799 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:47:10,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:47:09" (1/3) ... [2022-12-14 14:47:10,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@559232d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:47:10, skipping insertion in model container [2022-12-14 14:47:10,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:47:10" (2/3) ... [2022-12-14 14:47:10,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@559232d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:47:10, skipping insertion in model container [2022-12-14 14:47:10,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:47:10" (3/3) ... [2022-12-14 14:47:10,801 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_28-list2alloc.i [2022-12-14 14:47:10,807 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 14:47:10,815 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:47:10,815 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-12-14 14:47:10,815 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 14:47:10,858 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 14:47:10,886 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 14:47:10,896 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 184 places, 180 transitions, 365 flow [2022-12-14 14:47:10,899 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 184 places, 180 transitions, 365 flow [2022-12-14 14:47:10,900 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 184 places, 180 transitions, 365 flow [2022-12-14 14:47:10,945 INFO L130 PetriNetUnfolder]: 0/179 cut-off events. [2022-12-14 14:47:10,946 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 14:47:10,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 179 events. 0/179 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/165 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-14 14:47:10,950 INFO L119 LiptonReduction]: Number of co-enabled transitions 2650 [2022-12-14 14:47:48,942 WARN L233 SmtUtils]: Spent 12.12s on a formula simplification that was a NOOP. DAG size: 248 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 14:47:55,924 WARN L233 SmtUtils]: Spent 6.98s on a formula simplification that was a NOOP. DAG size: 234 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 14:48:11,283 WARN L233 SmtUtils]: Spent 15.36s on a formula simplification that was a NOOP. DAG size: 248 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 14:48:25,761 WARN L233 SmtUtils]: Spent 14.48s on a formula simplification that was a NOOP. DAG size: 234 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 14:48:25,835 INFO L134 LiptonReduction]: Checked pairs total: 22516 [2022-12-14 14:48:25,836 INFO L136 LiptonReduction]: Total number of compositions: 174 [2022-12-14 14:48:25,843 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 53 transitions, 111 flow [2022-12-14 14:48:25,880 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 391 states, 365 states have (on average 1.9945205479452055) internal successors, (728), 390 states have internal predecessors, (728), 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) [2022-12-14 14:48:25,895 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:48:25,900 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=FINITE_AUTOMATA, 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;@5efa0de4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:48:25,900 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-12-14 14:48:25,903 INFO L276 IsEmpty]: Start isEmpty. Operand has 391 states, 365 states have (on average 1.9945205479452055) internal successors, (728), 390 states have internal predecessors, (728), 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) [2022-12-14 14:48:25,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 14:48:25,907 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:48:25,908 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 14:48:25,908 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-12-14 14:48:25,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:48:25,912 INFO L85 PathProgramCache]: Analyzing trace with hash 607, now seen corresponding path program 1 times [2022-12-14 14:48:25,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:48:25,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119705127] [2022-12-14 14:48:25,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:48:25,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:48:25,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:48:26,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:48:26,009 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:48:26,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119705127] [2022-12-14 14:48:26,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119705127] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:48:26,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:48:26,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 14:48:26,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950205018] [2022-12-14 14:48:26,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:48:26,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 14:48:26,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:48:26,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 14:48:26,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 14:48:26,032 INFO L87 Difference]: Start difference. First operand has 391 states, 365 states have (on average 1.9945205479452055) internal successors, (728), 390 states have internal predecessors, (728), 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) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-12-14 14:48:26,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:48:26,095 INFO L93 Difference]: Finished difference Result 330 states and 615 transitions. [2022-12-14 14:48:26,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 14:48:26,097 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) Word has length 1 [2022-12-14 14:48:26,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:48:26,104 INFO L225 Difference]: With dead ends: 330 [2022-12-14 14:48:26,104 INFO L226 Difference]: Without dead ends: 330 [2022-12-14 14:48:26,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 14:48:26,107 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:48:26,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:48:26,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-12-14 14:48:26,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2022-12-14 14:48:26,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 321 states have (on average 1.9158878504672898) internal successors, (615), 329 states have internal predecessors, (615), 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) [2022-12-14 14:48:26,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 615 transitions. [2022-12-14 14:48:26,149 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 615 transitions. Word has length 1 [2022-12-14 14:48:26,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:48:26,149 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 615 transitions. [2022-12-14 14:48:26,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2022-12-14 14:48:26,149 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 615 transitions. [2022-12-14 14:48:26,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 14:48:26,150 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:48:26,150 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:48:26,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:48:26,150 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-12-14 14:48:26,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:48:26,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1158472875, now seen corresponding path program 1 times [2022-12-14 14:48:26,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:48:26,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184639760] [2022-12-14 14:48:26,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:48:26,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:48:26,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:48:26,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:48:26,684 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:48:26,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184639760] [2022-12-14 14:48:26,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184639760] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:48:26,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:48:26,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:48:26,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009262538] [2022-12-14 14:48:26,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:48:26,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 14:48:26,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:48:26,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 14:48:26,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:48:26,687 INFO L87 Difference]: Start difference. First operand 330 states and 615 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 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) [2022-12-14 14:48:26,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:48:26,933 INFO L93 Difference]: Finished difference Result 362 states and 673 transitions. [2022-12-14 14:48:26,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:48:26,933 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 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) Word has length 9 [2022-12-14 14:48:26,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:48:26,936 INFO L225 Difference]: With dead ends: 362 [2022-12-14 14:48:26,936 INFO L226 Difference]: Without dead ends: 362 [2022-12-14 14:48:26,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:48:26,937 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 22 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:48:26,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 34 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 14:48:26,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-12-14 14:48:26,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 350. [2022-12-14 14:48:26,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 341 states have (on average 1.9090909090909092) internal successors, (651), 349 states have internal predecessors, (651), 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) [2022-12-14 14:48:26,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 651 transitions. [2022-12-14 14:48:26,949 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 651 transitions. Word has length 9 [2022-12-14 14:48:26,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:48:26,949 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 651 transitions. [2022-12-14 14:48:26,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 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) [2022-12-14 14:48:26,949 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 651 transitions. [2022-12-14 14:48:26,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 14:48:26,950 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:48:26,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:48:26,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:48:26,950 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-12-14 14:48:26,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:48:26,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1447376222, now seen corresponding path program 1 times [2022-12-14 14:48:26,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:48:26,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189916696] [2022-12-14 14:48:26,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:48:26,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:48:26,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:48:27,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:48:27,270 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:48:27,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189916696] [2022-12-14 14:48:27,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189916696] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:48:27,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:48:27,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:48:27,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007610273] [2022-12-14 14:48:27,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:48:27,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 14:48:27,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:48:27,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 14:48:27,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:48:27,273 INFO L87 Difference]: Start difference. First operand 350 states and 651 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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) [2022-12-14 14:48:27,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:48:27,673 INFO L93 Difference]: Finished difference Result 466 states and 877 transitions. [2022-12-14 14:48:27,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:48:27,674 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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) Word has length 10 [2022-12-14 14:48:27,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:48:27,676 INFO L225 Difference]: With dead ends: 466 [2022-12-14 14:48:27,677 INFO L226 Difference]: Without dead ends: 450 [2022-12-14 14:48:27,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:48:27,677 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 64 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:48:27,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 31 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 14:48:27,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2022-12-14 14:48:27,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2022-12-14 14:48:27,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 441 states have (on average 1.9206349206349207) internal successors, (847), 449 states have internal predecessors, (847), 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) [2022-12-14 14:48:27,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 847 transitions. [2022-12-14 14:48:27,698 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 847 transitions. Word has length 10 [2022-12-14 14:48:27,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:48:27,698 INFO L495 AbstractCegarLoop]: Abstraction has 450 states and 847 transitions. [2022-12-14 14:48:27,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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) [2022-12-14 14:48:27,699 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 847 transitions. [2022-12-14 14:48:27,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 14:48:27,700 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:48:27,700 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:48:27,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 14:48:27,701 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-12-14 14:48:27,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:48:27,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1406835329, now seen corresponding path program 1 times [2022-12-14 14:48:27,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:48:27,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090969180] [2022-12-14 14:48:27,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:48:27,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:48:27,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:48:27,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:48:27,767 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:48:27,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090969180] [2022-12-14 14:48:27,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090969180] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:48:27,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:48:27,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:48:27,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758153440] [2022-12-14 14:48:27,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:48:27,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:48:27,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:48:27,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:48:27,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:48:27,769 INFO L87 Difference]: Start difference. First operand 450 states and 847 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-12-14 14:48:27,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:48:27,847 INFO L93 Difference]: Finished difference Result 436 states and 804 transitions. [2022-12-14 14:48:27,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:48:27,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) Word has length 13 [2022-12-14 14:48:27,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:48:27,850 INFO L225 Difference]: With dead ends: 436 [2022-12-14 14:48:27,851 INFO L226 Difference]: Without dead ends: 436 [2022-12-14 14:48:27,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:48:27,852 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 34 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:48:27,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 54 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:48:27,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2022-12-14 14:48:27,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 436. [2022-12-14 14:48:27,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 426 states have (on average 1.8873239436619718) internal successors, (804), 435 states have internal predecessors, (804), 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) [2022-12-14 14:48:27,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 804 transitions. [2022-12-14 14:48:27,874 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 804 transitions. Word has length 13 [2022-12-14 14:48:27,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:48:27,874 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 804 transitions. [2022-12-14 14:48:27,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-12-14 14:48:27,874 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 804 transitions. [2022-12-14 14:48:27,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 14:48:27,876 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:48:27,876 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:48:27,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 14:48:27,876 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-12-14 14:48:27,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:48:27,876 INFO L85 PathProgramCache]: Analyzing trace with hash 515823057, now seen corresponding path program 2 times [2022-12-14 14:48:27,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:48:27,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142673862] [2022-12-14 14:48:27,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:48:27,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:48:27,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:48:27,918 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 14:48:27,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:48:27,948 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 14:48:27,948 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 14:48:27,949 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (20 of 21 remaining) [2022-12-14 14:48:27,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2022-12-14 14:48:27,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2022-12-14 14:48:27,951 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2022-12-14 14:48:27,951 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 21 remaining) [2022-12-14 14:48:27,951 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2022-12-14 14:48:27,951 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 21 remaining) [2022-12-14 14:48:27,951 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2022-12-14 14:48:27,951 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining) [2022-12-14 14:48:27,951 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 21 remaining) [2022-12-14 14:48:27,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (10 of 21 remaining) [2022-12-14 14:48:27,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 21 remaining) [2022-12-14 14:48:27,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining) [2022-12-14 14:48:27,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2022-12-14 14:48:27,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2022-12-14 14:48:27,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining) [2022-12-14 14:48:27,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining) [2022-12-14 14:48:27,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2022-12-14 14:48:27,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 21 remaining) [2022-12-14 14:48:27,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2022-12-14 14:48:27,953 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2022-12-14 14:48:27,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 14:48:27,955 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2022-12-14 14:48:27,959 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 14:48:27,959 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:48:27,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:48:27 BasicIcfg [2022-12-14 14:48:27,988 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:48:27,989 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:48:27,989 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:48:27,989 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:48:27,989 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:47:10" (3/4) ... [2022-12-14 14:48:27,991 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 14:48:27,991 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:48:27,992 INFO L158 Benchmark]: Toolchain (without parser) took 78320.94ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 72.6MB in the beginning and 75.4MB in the end (delta: -2.8MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. [2022-12-14 14:48:27,992 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 113.2MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:48:27,992 INFO L158 Benchmark]: CACSL2BoogieTranslator took 611.10ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 72.6MB in the beginning and 97.5MB in the end (delta: -24.9MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. [2022-12-14 14:48:27,993 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.94ms. Allocated memory is still 136.3MB. Free memory was 97.5MB in the beginning and 94.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:48:27,993 INFO L158 Benchmark]: Boogie Preprocessor took 33.19ms. Allocated memory is still 136.3MB. Free memory was 94.8MB in the beginning and 92.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 14:48:27,993 INFO L158 Benchmark]: RCFGBuilder took 431.43ms. Allocated memory is still 136.3MB. Free memory was 92.0MB in the beginning and 70.3MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-14 14:48:27,993 INFO L158 Benchmark]: TraceAbstraction took 77191.66ms. Allocated memory is still 136.3MB. Free memory was 69.7MB in the beginning and 75.4MB in the end (delta: -5.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:48:27,993 INFO L158 Benchmark]: Witness Printer took 2.88ms. Allocated memory is still 136.3MB. Free memory is still 75.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:48:27,995 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 113.2MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 611.10ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 72.6MB in the beginning and 97.5MB in the end (delta: -24.9MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.94ms. Allocated memory is still 136.3MB. Free memory was 97.5MB in the beginning and 94.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.19ms. Allocated memory is still 136.3MB. Free memory was 94.8MB in the beginning and 92.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 431.43ms. Allocated memory is still 136.3MB. Free memory was 92.0MB in the beginning and 70.3MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 77191.66ms. Allocated memory is still 136.3MB. Free memory was 69.7MB in the beginning and 75.4MB in the end (delta: -5.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.88ms. Allocated memory is still 136.3MB. Free memory is still 75.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 74.9s, 184 PlacesBefore, 57 PlacesAfterwards, 180 TransitionsBefore, 53 TransitionsAfterwards, 2650 CoEnabledTransitionPairs, 16 FixpointIterations, 120 TrivialSequentialCompositions, 54 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 174 TotalNumberOfCompositions, 22516 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5079, independent: 3777, independent conditional: 0, independent unconditional: 3777, dependent: 1207, dependent conditional: 0, dependent unconditional: 1207, unknown: 95, unknown conditional: 0, unknown unconditional: 95] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1801, independent: 1670, independent conditional: 0, independent unconditional: 1670, dependent: 126, dependent conditional: 0, dependent unconditional: 126, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1801, independent: 1572, independent conditional: 0, independent unconditional: 1572, dependent: 229, dependent conditional: 0, dependent unconditional: 229, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 229, independent: 98, independent conditional: 0, independent unconditional: 98, dependent: 126, dependent conditional: 0, dependent unconditional: 126, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , SemanticIndependenceRelation.Query Time [ms]: [ total: 11209, independent: 61, independent conditional: 0, independent unconditional: 61, dependent: 414, dependent conditional: 0, dependent unconditional: 414, unknown: 10734, unknown conditional: 0, unknown unconditional: 10734] ], Cache Queries: [ total: 5079, independent: 2107, independent conditional: 0, independent unconditional: 2107, dependent: 1081, dependent conditional: 0, dependent unconditional: 1081, unknown: 1891, unknown conditional: 0, unknown unconditional: 1891] , Statistics on independence cache: Total cache size (in pairs): 234, Positive cache size: 171, Positive conditional cache size: 0, Positive unconditional cache size: 171, Negative cache size: 63, Negative conditional cache size: 0, Negative unconditional cache size: 63, Unknown cache size: 4, Unknown conditional cache size: 0, Unknown unconditional cache size: 4 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 1237]: Data race detected Data race detected The following path leads to a data race: [L1223-L1226] 0 struct s { int datum; struct s *next; } *A, *B; [L1233] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1234] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1245] 0 pthread_t t1; [L1246] CALL, EXPR 0 new(3) [L1228] 0 struct s *p = malloc(sizeof(struct s)); [L1229] 0 p->datum = x [L1230] 0 p->next = ((void *)0) [L1231] 0 return p; [L1246] RET, EXPR 0 new(3) [L1246] 0 A = new(3) [L1247] CALL, EXPR 0 new(5) [L1228] 0 struct s *p = malloc(sizeof(struct s)); [L1229] 0 p->datum = x [L1230] 0 p->next = ((void *)0) [L1231] 0 return p; [L1247] RET, EXPR 0 new(5) [L1247] 0 B = new(5) [L1248] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [A={-2:0}, A_mutex={1:0}, arg={0:0}, B={-3:0}, B_mutex={2:0}, pthread_create(&t1, ((void *)0), t_fun, ((void *)0))=-1, t1={9:0}] [L1249] 0 int *data; [L1251] EXPR 0 A->datum [L1251] 0 data = &A->datum [L1237] EXPR 1 A->datum VAL [A={-2:0}, A_mutex={1:0}, arg={0:0}, arg={0:0}, B={-3:0}, B_mutex={2:0}] [L1253] 0 *data = 42 VAL [A={-2:0}, A_mutex={1:0}, arg={0:0}, arg={0:0}, B={-3:0}, B_mutex={2:0}, data={-2:0}, t1={9:0}] [L1237] EXPR 1 A->datum VAL [A={-2:0}, A->datum=42, A_mutex={1:0}, arg={0:0}, arg={0:0}, B={-3:0}, B_mutex={2:0}] [L1237] 1 A->datum++ VAL [A={-2:0}, A->datum=42, A_mutex={1:0}, arg={0:0}, arg={0:0}, B={-3:0}, B_mutex={2:0}] [L1237] 1 A->datum++ VAL [A={-2:0}, A->datum=42, A_mutex={1:0}, arg={0:0}, arg={0:0}, B={-3:0}, B_mutex={2:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: p->next = ((void *)0) [1230] * C: B = new(5) [1247] * C: p->datum = x [1229] * C: p->next = ((void *)0) [1230] * C: p->datum = x [1229] * C: p->next = ((void *)0) [1230] * C: p->next = ((void *)0) [1230] * C: p->datum = x [1229] * C: p->datum = x [1229] * C: *data = 42 [1253] * C: A = new(3) [1246] and C: A->datum++ [1237] - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1230]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1246]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1230]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1247]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1251]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1253]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1248]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1237]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1237]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 236 locations, 21 error locations. Started 1 CEGAR loops. OverallTime: 77.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 75.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 120 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 120 mSDsluCounter, 144 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 659 IncrementalHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 114 mSDtfsCounter, 659 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=450occurred in iteration=3, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 197 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-14 14:48:28,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10e59d6d-5ddd-41fc-9ccf-421ba7de3609/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE