./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_55-pt_rwlock_rr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a352fa2-bef3-4ed0-b3de-cd74cac01406/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a352fa2-bef3-4ed0-b3de-cd74cac01406/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a352fa2-bef3-4ed0-b3de-cd74cac01406/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a352fa2-bef3-4ed0-b3de-cd74cac01406/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_55-pt_rwlock_rr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a352fa2-bef3-4ed0-b3de-cd74cac01406/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a352fa2-bef3-4ed0-b3de-cd74cac01406/bin/uautomizer-uyxdKDjOR8 --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 c5a5c14c57e06cfd3efa20a37113fb2e77fc1d7f7a430797d00e5c1b23749611 --- 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 [2022-12-13 16:21:10,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:21:10,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:21:10,793 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:21:10,793 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:21:10,794 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:21:10,795 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:21:10,797 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:21:10,798 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:21:10,799 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:21:10,800 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:21:10,801 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:21:10,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:21:10,802 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:21:10,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:21:10,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:21:10,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:21:10,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:21:10,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:21:10,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:21:10,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:21:10,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:21:10,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:21:10,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:21:10,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:21:10,816 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:21:10,816 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:21:10,817 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:21:10,818 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:21:10,818 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:21:10,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:21:10,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:21:10,820 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:21:10,821 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:21:10,822 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:21:10,822 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:21:10,822 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:21:10,823 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:21:10,823 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:21:10,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:21:10,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:21:10,825 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a352fa2-bef3-4ed0-b3de-cd74cac01406/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 16:21:10,845 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:21:10,846 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:21:10,846 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:21:10,846 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:21:10,847 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:21:10,853 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:21:10,854 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:21:10,854 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:21:10,854 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:21:10,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:21:10,854 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 16:21:10,855 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 16:21:10,855 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:21:10,855 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 16:21:10,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:21:10,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:21:10,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:21:10,856 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:21:10,856 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 16:21:10,856 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 16:21:10,856 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:21:10,856 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:21:10,857 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:21:10,857 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:21:10,857 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:21:10,857 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:21:10,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:21:10,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:21:10,858 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:21:10,858 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:21:10,858 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:21:10,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:21:10,858 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:21:10,859 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:21:10,859 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:21:10,859 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:21:10,859 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:21:10,859 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_0a352fa2-bef3-4ed0-b3de-cd74cac01406/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a352fa2-bef3-4ed0-b3de-cd74cac01406/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5a5c14c57e06cfd3efa20a37113fb2e77fc1d7f7a430797d00e5c1b23749611 [2022-12-13 16:21:11,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:21:11,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:21:11,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:21:11,079 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:21:11,080 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:21:11,081 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a352fa2-bef3-4ed0-b3de-cd74cac01406/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/04-mutex_55-pt_rwlock_rr.i [2022-12-13 16:21:13,642 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:21:13,861 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:21:13,861 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a352fa2-bef3-4ed0-b3de-cd74cac01406/sv-benchmarks/c/goblint-regression/04-mutex_55-pt_rwlock_rr.i [2022-12-13 16:21:13,873 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a352fa2-bef3-4ed0-b3de-cd74cac01406/bin/uautomizer-uyxdKDjOR8/data/8e98a5c57/7cb959fc28604d9b82283ba75c410c60/FLAG21678a18b [2022-12-13 16:21:14,247 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a352fa2-bef3-4ed0-b3de-cd74cac01406/bin/uautomizer-uyxdKDjOR8/data/8e98a5c57/7cb959fc28604d9b82283ba75c410c60 [2022-12-13 16:21:14,256 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:21:14,260 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:21:14,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:21:14,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:21:14,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:21:14,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:21:14" (1/1) ... [2022-12-13 16:21:14,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47fb80ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:21:14, skipping insertion in model container [2022-12-13 16:21:14,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:21:14" (1/1) ... [2022-12-13 16:21:14,276 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:21:14,301 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:21:14,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:21:14,592 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:21:14,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:21:14,656 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:21:14,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:21:14 WrapperNode [2022-12-13 16:21:14,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:21:14,657 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:21:14,657 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:21:14,657 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:21:14,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:21:14" (1/1) ... [2022-12-13 16:21:14,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:21:14" (1/1) ... [2022-12-13 16:21:14,689 INFO L138 Inliner]: procedures = 263, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57 [2022-12-13 16:21:14,689 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:21:14,690 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:21:14,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:21:14,690 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:21:14,697 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:21:14" (1/1) ... [2022-12-13 16:21:14,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:21:14" (1/1) ... [2022-12-13 16:21:14,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:21:14" (1/1) ... [2022-12-13 16:21:14,699 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:21:14" (1/1) ... [2022-12-13 16:21:14,704 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:21:14" (1/1) ... [2022-12-13 16:21:14,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:21:14" (1/1) ... [2022-12-13 16:21:14,706 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:21:14" (1/1) ... [2022-12-13 16:21:14,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:21:14" (1/1) ... [2022-12-13 16:21:14,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:21:14,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:21:14,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:21:14,710 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:21:14,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:21:14" (1/1) ... [2022-12-13 16:21:14,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:21:14,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a352fa2-bef3-4ed0-b3de-cd74cac01406/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:21:14,735 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a352fa2-bef3-4ed0-b3de-cd74cac01406/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:21:14,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a352fa2-bef3-4ed0-b3de-cd74cac01406/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:21:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockReadLock [2022-12-13 16:21:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 16:21:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 16:21:14,764 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockUnlock [2022-12-13 16:21:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 16:21:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 16:21:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:21:14,765 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 16:21:14,772 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 16:21:14,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 16:21:14,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:21:14,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:21:14,774 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 16:21:14,866 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:21:14,868 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:21:15,016 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:21:15,023 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:21:15,023 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 16:21:15,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:21:15 BoogieIcfgContainer [2022-12-13 16:21:15,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:21:15,028 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:21:15,028 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:21:15,031 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:21:15,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:21:14" (1/3) ... [2022-12-13 16:21:15,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54dd8ae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:21:15, skipping insertion in model container [2022-12-13 16:21:15,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:21:14" (2/3) ... [2022-12-13 16:21:15,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54dd8ae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:21:15, skipping insertion in model container [2022-12-13 16:21:15,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:21:15" (3/3) ... [2022-12-13 16:21:15,034 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_55-pt_rwlock_rr.i [2022-12-13 16:21:15,043 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 16:21:15,052 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:21:15,053 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-12-13 16:21:15,053 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 16:21:15,096 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-13 16:21:15,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 87 transitions, 182 flow [2022-12-13 16:21:15,164 INFO L130 PetriNetUnfolder]: 0/86 cut-off events. [2022-12-13 16:21:15,164 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 16:21:15,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 86 events. 0/86 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-12-13 16:21:15,167 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 87 transitions, 182 flow [2022-12-13 16:21:15,170 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 78 transitions, 159 flow [2022-12-13 16:21:15,173 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 16:21:15,181 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 78 transitions, 159 flow [2022-12-13 16:21:15,183 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 78 transitions, 159 flow [2022-12-13 16:21:15,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 78 transitions, 159 flow [2022-12-13 16:21:15,198 INFO L130 PetriNetUnfolder]: 0/78 cut-off events. [2022-12-13 16:21:15,198 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:21:15,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 78 events. 0/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-13 16:21:15,199 INFO L119 LiptonReduction]: Number of co-enabled transitions 1232 [2022-12-13 16:21:16,743 INFO L134 LiptonReduction]: Checked pairs total: 3988 [2022-12-13 16:21:16,743 INFO L136 LiptonReduction]: Total number of compositions: 58 [2022-12-13 16:21:16,756 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:21:16,760 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;@5de12947, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:21:16,760 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-12-13 16:21:16,764 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2022-12-13 16:21:16,764 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:21:16,764 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:21:16,764 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 16:21:16,765 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-12-13 16:21:16,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:21:16,770 INFO L85 PathProgramCache]: Analyzing trace with hash 271133618, now seen corresponding path program 1 times [2022-12-13 16:21:16,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:21:16,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763211036] [2022-12-13 16:21:16,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:21:16,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:21:16,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:21:16,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:21:16,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:21:16,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763211036] [2022-12-13 16:21:16,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763211036] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:21:16,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:21:16,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 16:21:16,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139462760] [2022-12-13 16:21:16,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:21:16,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:21:16,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:21:16,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:21:16,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:21:16,976 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 145 [2022-12-13 16:21:16,979 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 25 transitions, 53 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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) [2022-12-13 16:21:16,979 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:21:16,979 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 145 [2022-12-13 16:21:16,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:21:17,055 INFO L130 PetriNetUnfolder]: 66/207 cut-off events. [2022-12-13 16:21:17,055 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:21:17,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 371 conditions, 207 events. 66/207 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 975 event pairs, 14 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 362. Up to 94 conditions per place. [2022-12-13 16:21:17,059 INFO L137 encePairwiseOnDemand]: 138/145 looper letters, 25 selfloop transitions, 4 changer transitions 0/35 dead transitions. [2022-12-13 16:21:17,059 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 35 transitions, 131 flow [2022-12-13 16:21:17,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:21:17,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:21:17,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 267 transitions. [2022-12-13 16:21:17,071 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6137931034482759 [2022-12-13 16:21:17,072 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 267 transitions. [2022-12-13 16:21:17,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 267 transitions. [2022-12-13 16:21:17,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:21:17,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 267 transitions. [2022-12-13 16:21:17,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 89.0) internal successors, (267), 3 states have internal predecessors, (267), 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) [2022-12-13 16:21:17,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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) [2022-12-13 16:21:17,084 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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) [2022-12-13 16:21:17,086 INFO L175 Difference]: Start difference. First operand has 29 places, 25 transitions, 53 flow. Second operand 3 states and 267 transitions. [2022-12-13 16:21:17,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 35 transitions, 131 flow [2022-12-13 16:21:17,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 35 transitions, 130 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 16:21:17,095 INFO L231 Difference]: Finished difference. Result has 30 places, 26 transitions, 78 flow [2022-12-13 16:21:17,097 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=30, PETRI_TRANSITIONS=26} [2022-12-13 16:21:17,100 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 1 predicate places. [2022-12-13 16:21:17,101 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 26 transitions, 78 flow [2022-12-13 16:21:17,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 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) [2022-12-13 16:21:17,101 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:21:17,101 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:21:17,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 16:21:17,101 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-12-13 16:21:17,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:21:17,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1433532719, now seen corresponding path program 1 times [2022-12-13 16:21:17,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:21:17,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795418915] [2022-12-13 16:21:17,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:21:17,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:21:17,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:21:17,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:21:17,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:21:17,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795418915] [2022-12-13 16:21:17,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795418915] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:21:17,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:21:17,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 16:21:17,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139690910] [2022-12-13 16:21:17,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:21:17,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:21:17,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:21:17,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:21:17,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:21:17,179 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 145 [2022-12-13 16:21:17,180 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 26 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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) [2022-12-13 16:21:17,180 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:21:17,180 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 145 [2022-12-13 16:21:17,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:21:17,237 INFO L130 PetriNetUnfolder]: 69/213 cut-off events. [2022-12-13 16:21:17,237 INFO L131 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2022-12-13 16:21:17,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 434 conditions, 213 events. 69/213 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1032 event pairs, 32 based on Foata normal form. 0/199 useless extension candidates. Maximal degree in co-relation 424. Up to 121 conditions per place. [2022-12-13 16:21:17,239 INFO L137 encePairwiseOnDemand]: 140/145 looper letters, 22 selfloop transitions, 4 changer transitions 0/34 dead transitions. [2022-12-13 16:21:17,239 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 34 transitions, 150 flow [2022-12-13 16:21:17,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:21:17,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:21:17,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2022-12-13 16:21:17,242 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5954022988505747 [2022-12-13 16:21:17,242 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 259 transitions. [2022-12-13 16:21:17,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 259 transitions. [2022-12-13 16:21:17,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:21:17,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 259 transitions. [2022-12-13 16:21:17,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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) [2022-12-13 16:21:17,245 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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) [2022-12-13 16:21:17,245 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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) [2022-12-13 16:21:17,246 INFO L175 Difference]: Start difference. First operand has 30 places, 26 transitions, 78 flow. Second operand 3 states and 259 transitions. [2022-12-13 16:21:17,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 34 transitions, 150 flow [2022-12-13 16:21:17,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 34 transitions, 140 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 16:21:17,248 INFO L231 Difference]: Finished difference. Result has 32 places, 29 transitions, 102 flow [2022-12-13 16:21:17,248 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=32, PETRI_TRANSITIONS=29} [2022-12-13 16:21:17,248 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 3 predicate places. [2022-12-13 16:21:17,248 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 29 transitions, 102 flow [2022-12-13 16:21:17,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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) [2022-12-13 16:21:17,249 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:21:17,249 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:21:17,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 16:21:17,249 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-12-13 16:21:17,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:21:17,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1408955722, now seen corresponding path program 1 times [2022-12-13 16:21:17,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:21:17,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38790421] [2022-12-13 16:21:17,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:21:17,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:21:17,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:21:17,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:21:17,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:21:17,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38790421] [2022-12-13 16:21:17,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38790421] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:21:17,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:21:17,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 16:21:17,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786695824] [2022-12-13 16:21:17,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:21:17,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:21:17,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:21:17,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:21:17,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:21:17,303 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 145 [2022-12-13 16:21:17,304 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 29 transitions, 102 flow. Second operand has 3 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) [2022-12-13 16:21:17,304 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:21:17,304 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 145 [2022-12-13 16:21:17,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:21:17,356 INFO L130 PetriNetUnfolder]: 94/255 cut-off events. [2022-12-13 16:21:17,356 INFO L131 PetriNetUnfolder]: For 95/105 co-relation queries the response was YES. [2022-12-13 16:21:17,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 600 conditions, 255 events. 94/255 cut-off events. For 95/105 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1151 event pairs, 28 based on Foata normal form. 5/252 useless extension candidates. Maximal degree in co-relation 589. Up to 121 conditions per place. [2022-12-13 16:21:17,358 INFO L137 encePairwiseOnDemand]: 139/145 looper letters, 29 selfloop transitions, 5 changer transitions 2/42 dead transitions. [2022-12-13 16:21:17,358 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 42 transitions, 218 flow [2022-12-13 16:21:17,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:21:17,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:21:17,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 265 transitions. [2022-12-13 16:21:17,360 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6091954022988506 [2022-12-13 16:21:17,360 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 265 transitions. [2022-12-13 16:21:17,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 265 transitions. [2022-12-13 16:21:17,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:21:17,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 265 transitions. [2022-12-13 16:21:17,362 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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) [2022-12-13 16:21:17,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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) [2022-12-13 16:21:17,364 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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) [2022-12-13 16:21:17,364 INFO L175 Difference]: Start difference. First operand has 32 places, 29 transitions, 102 flow. Second operand 3 states and 265 transitions. [2022-12-13 16:21:17,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 42 transitions, 218 flow [2022-12-13 16:21:17,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 42 transitions, 206 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 16:21:17,367 INFO L231 Difference]: Finished difference. Result has 33 places, 32 transitions, 134 flow [2022-12-13 16:21:17,367 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=33, PETRI_TRANSITIONS=32} [2022-12-13 16:21:17,368 INFO L288 CegarLoopForPetriNet]: 29 programPoint places, 4 predicate places. [2022-12-13 16:21:17,368 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 32 transitions, 134 flow [2022-12-13 16:21:17,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2022-12-13 16:21:17,368 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:21:17,368 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:21:17,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 16:21:17,369 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-12-13 16:21:17,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:21:17,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1978335655, now seen corresponding path program 1 times [2022-12-13 16:21:17,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:21:17,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432663980] [2022-12-13 16:21:17,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:21:17,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:21:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:21:17,393 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:21:17,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:21:17,425 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:21:17,425 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 16:21:17,426 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 11 remaining) [2022-12-13 16:21:17,428 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2022-12-13 16:21:17,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2022-12-13 16:21:17,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2022-12-13 16:21:17,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 11 remaining) [2022-12-13 16:21:17,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2022-12-13 16:21:17,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2022-12-13 16:21:17,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2022-12-13 16:21:17,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2022-12-13 16:21:17,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2022-12-13 16:21:17,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2022-12-13 16:21:17,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 16:21:17,431 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-13 16:21:17,437 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 16:21:17,437 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 16:21:17,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 04:21:17 BasicIcfg [2022-12-13 16:21:17,457 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 16:21:17,457 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 16:21:17,457 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 16:21:17,457 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 16:21:17,458 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:21:15" (3/4) ... [2022-12-13 16:21:17,460 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 16:21:17,460 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 16:21:17,460 INFO L158 Benchmark]: Toolchain (without parser) took 3201.54ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 88.0MB in the beginning and 73.1MB in the end (delta: 15.0MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. [2022-12-13 16:21:17,460 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 125.8MB. Free memory is still 93.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:21:17,461 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.89ms. Allocated memory is still 125.8MB. Free memory was 87.7MB in the beginning and 60.5MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-13 16:21:17,461 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.44ms. Allocated memory is still 125.8MB. Free memory was 60.5MB in the beginning and 58.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:21:17,462 INFO L158 Benchmark]: Boogie Preprocessor took 19.38ms. Allocated memory is still 125.8MB. Free memory was 58.1MB in the beginning and 56.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:21:17,462 INFO L158 Benchmark]: RCFGBuilder took 315.47ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 56.6MB in the beginning and 113.4MB in the end (delta: -56.8MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2022-12-13 16:21:17,463 INFO L158 Benchmark]: TraceAbstraction took 2429.27ms. Allocated memory is still 151.0MB. Free memory was 112.7MB in the beginning and 74.1MB in the end (delta: 38.6MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. [2022-12-13 16:21:17,463 INFO L158 Benchmark]: Witness Printer took 2.70ms. Allocated memory is still 151.0MB. Free memory was 74.1MB in the beginning and 73.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:21:17,465 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 125.8MB. Free memory is still 93.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 394.89ms. Allocated memory is still 125.8MB. Free memory was 87.7MB in the beginning and 60.5MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.44ms. Allocated memory is still 125.8MB. Free memory was 60.5MB in the beginning and 58.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.38ms. Allocated memory is still 125.8MB. Free memory was 58.1MB in the beginning and 56.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 315.47ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 56.6MB in the beginning and 113.4MB in the end (delta: -56.8MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2429.27ms. Allocated memory is still 151.0MB. Free memory was 112.7MB in the beginning and 74.1MB in the end (delta: 38.6MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. * Witness Printer took 2.70ms. Allocated memory is still 151.0MB. Free memory was 74.1MB in the beginning and 73.1MB in the end (delta: 1.0MB). 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: 1.6s, 82 PlacesBefore, 29 PlacesAfterwards, 78 TransitionsBefore, 25 TransitionsAfterwards, 1232 CoEnabledTransitionPairs, 6 FixpointIterations, 26 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 58 TotalNumberOfCompositions, 3988 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1747, independent: 1494, independent conditional: 0, independent unconditional: 1494, dependent: 253, dependent conditional: 0, dependent unconditional: 253, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 676, independent: 632, independent conditional: 0, independent unconditional: 632, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1747, independent: 862, independent conditional: 0, independent unconditional: 862, dependent: 209, dependent conditional: 0, dependent unconditional: 209, unknown: 676, unknown conditional: 0, unknown unconditional: 676] , Statistics on independence cache: Total cache size (in pairs): 109, Positive cache size: 88, Positive conditional cache size: 0, Positive unconditional cache size: 88, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 931]: Data race detected Data race detected The following path leads to a data race: [L917] 0 static int data1; [L918] 0 static int data2; [L919] 0 static pthread_rwlock_t rwlock = { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } }; [L928] 0 pthread_t id; [L929] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, data1=0, data2=0, id={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0, rwlock={1:0}] [L922] 1 data1++ VAL [arg={0:0}, arg={0:0}, data1=1, data1++=0, data2=0, rwlock={1:0}] [L922] 1 data1++ VAL [arg={0:0}, arg={0:0}, data1=1, data1++=0, data1++=33, data2=0, rwlock={1:0}] [L931] 0 printf("%d",data1) VAL [arg={0:0}, arg={0:0}, data1=1, data1++=0, data1++=33, data2=0, id={3:0}, rwlock={1:0}] Now there is a data race on ~data1~0 between C: data1++ [922] and C: printf("%d",data1) [931] - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 934]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 929]: 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: 922]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 922]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 923]: 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, 112 locations, 11 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: 2.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 85 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 133 IncrementalHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 14 mSDtfsCounter, 133 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=3, InterpolantAutomatonStates: 9, 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, 0.1s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2022-12-13 16:21:17,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a352fa2-bef3-4ed0-b3de-cd74cac01406/bin/uautomizer-uyxdKDjOR8/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