./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/barrier_3t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc 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_56e0e55e-6140-4914-8fd0-f0f211f0fbf1/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e0e55e-6140-4914-8fd0-f0f211f0fbf1/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e0e55e-6140-4914-8fd0-f0f211f0fbf1/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e0e55e-6140-4914-8fd0-f0f211f0fbf1/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-divine/barrier_3t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e0e55e-6140-4914-8fd0-f0f211f0fbf1/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e0e55e-6140-4914-8fd0-f0f211f0fbf1/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --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 116240ce9d1e33454ba4eae840c2d7b67606f3cd4ffa1a06798f06dcbc1241fc --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:15:19,674 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:15:19,756 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e0e55e-6140-4914-8fd0-f0f211f0fbf1/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-24 23:15:19,761 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:15:19,762 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:15:19,799 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:15:19,800 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:15:19,801 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:15:19,802 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:15:19,807 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:15:19,808 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:15:19,809 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:15:19,810 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:15:19,812 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:15:19,812 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:15:19,813 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:15:19,813 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:15:19,814 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:15:19,814 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:15:19,815 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:15:19,815 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:15:19,816 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:15:19,817 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:15:19,818 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:15:19,818 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:15:19,819 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:15:19,819 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:15:19,820 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:15:19,820 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:15:19,821 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:15:19,822 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:15:19,822 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-24 23:15:19,823 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:15:19,823 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:15:19,823 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:15:19,823 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:15:19,824 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:15:19,824 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:15:19,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:15:19,825 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:15:19,826 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:15:19,826 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:15:19,826 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:15:19,827 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:15:19,827 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:15:19,827 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:15:19,827 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:15:19,828 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:15:19,828 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_56e0e55e-6140-4914-8fd0-f0f211f0fbf1/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e0e55e-6140-4914-8fd0-f0f211f0fbf1/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 116240ce9d1e33454ba4eae840c2d7b67606f3cd4ffa1a06798f06dcbc1241fc [2023-11-24 23:15:20,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:15:20,148 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:15:20,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:15:20,153 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:15:20,156 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:15:20,157 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e0e55e-6140-4914-8fd0-f0f211f0fbf1/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/pthread-divine/barrier_3t.i [2023-11-24 23:15:23,526 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:15:23,876 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:15:23,876 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e0e55e-6140-4914-8fd0-f0f211f0fbf1/sv-benchmarks/c/pthread-divine/barrier_3t.i [2023-11-24 23:15:23,900 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e0e55e-6140-4914-8fd0-f0f211f0fbf1/bin/utaipan-verify-SwPr7d2a91/data/1a204eca3/cf072aef2b3d447d9d6b9f21ee149510/FLAGdf2845ab4 [2023-11-24 23:15:23,920 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e0e55e-6140-4914-8fd0-f0f211f0fbf1/bin/utaipan-verify-SwPr7d2a91/data/1a204eca3/cf072aef2b3d447d9d6b9f21ee149510 [2023-11-24 23:15:23,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:15:23,925 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:15:23,927 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:15:23,928 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:15:23,935 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:15:23,936 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:15:23" (1/1) ... [2023-11-24 23:15:23,938 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5378d971 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:23, skipping insertion in model container [2023-11-24 23:15:23,938 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:15:23" (1/1) ... [2023-11-24 23:15:24,021 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:15:24,650 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:15:24,671 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:15:24,808 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:15:24,856 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:15:24,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:24 WrapperNode [2023-11-24 23:15:24,856 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:15:24,858 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:15:24,858 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:15:24,858 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:15:24,867 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:24" (1/1) ... [2023-11-24 23:15:24,893 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:24" (1/1) ... [2023-11-24 23:15:24,991 INFO L138 Inliner]: procedures = 174, calls = 99, calls flagged for inlining = 19, calls inlined = 31, statements flattened = 1079 [2023-11-24 23:15:24,991 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:15:24,992 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:15:24,992 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:15:24,992 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:15:25,004 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:24" (1/1) ... [2023-11-24 23:15:25,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:24" (1/1) ... [2023-11-24 23:15:25,036 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:24" (1/1) ... [2023-11-24 23:15:25,037 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:24" (1/1) ... [2023-11-24 23:15:25,159 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:24" (1/1) ... [2023-11-24 23:15:25,171 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:24" (1/1) ... [2023-11-24 23:15:25,178 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:24" (1/1) ... [2023-11-24 23:15:25,185 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:24" (1/1) ... [2023-11-24 23:15:25,221 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:15:25,223 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:15:25,223 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:15:25,223 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:15:25,225 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:24" (1/1) ... [2023-11-24 23:15:25,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:15:25,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e0e55e-6140-4914-8fd0-f0f211f0fbf1/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:15:25,273 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e0e55e-6140-4914-8fd0-f0f211f0fbf1/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:15:25,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56e0e55e-6140-4914-8fd0-f0f211f0fbf1/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:15:25,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:15:25,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:15:25,323 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-24 23:15:25,323 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2023-11-24 23:15:25,323 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2023-11-24 23:15:25,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:15:25,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:15:25,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:15:25,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:15:25,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:15:25,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:15:25,327 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-24 23:15:25,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:15:25,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:15:25,330 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-24 23:15:25,610 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:15:25,614 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:15:27,559 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:15:27,628 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:15:27,628 INFO L309 CfgBuilder]: Removed 20 assume(true) statements. [2023-11-24 23:15:27,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:15:27 BoogieIcfgContainer [2023-11-24 23:15:27,631 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:15:27,633 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:15:27,633 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:15:27,639 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:15:27,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:15:23" (1/3) ... [2023-11-24 23:15:27,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf4d6a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:15:27, skipping insertion in model container [2023-11-24 23:15:27,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:15:24" (2/3) ... [2023-11-24 23:15:27,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf4d6a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:15:27, skipping insertion in model container [2023-11-24 23:15:27,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:15:27" (3/3) ... [2023-11-24 23:15:27,647 INFO L112 eAbstractionObserver]: Analyzing ICFG barrier_3t.i [2023-11-24 23:15:27,657 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-24 23:15:27,669 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:15:27,670 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 98 error locations. [2023-11-24 23:15:27,670 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-24 23:15:27,966 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-24 23:15:28,038 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 1139 places, 1229 transitions, 2465 flow [2023-11-24 23:15:35,717 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 257548 states, 255244 states have (on average 2.1858378649449155) internal successors, (557922), 257547 states have internal predecessors, (557922), 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) [2023-11-24 23:15:35,782 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:15:35,790 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=LoopHeads, 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;@7212c33c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:15:35,791 INFO L358 AbstractCegarLoop]: Starting to check reachability of 143 error locations. [2023-11-24 23:15:36,142 INFO L276 IsEmpty]: Start isEmpty. Operand has 257548 states, 255244 states have (on average 2.1858378649449155) internal successors, (557922), 257547 states have internal predecessors, (557922), 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) [2023-11-24 23:15:36,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-24 23:15:36,152 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:15:36,153 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:15:36,154 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-24 23:15:36,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:15:36,165 INFO L85 PathProgramCache]: Analyzing trace with hash -367881406, now seen corresponding path program 1 times [2023-11-24 23:15:36,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:15:36,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267332267] [2023-11-24 23:15:36,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:15:36,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:15:36,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:15:37,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:15:37,968 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:15:37,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267332267] [2023-11-24 23:15:37,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267332267] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:15:37,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:15:37,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:15:37,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238780052] [2023-11-24 23:15:37,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:15:37,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 23:15:37,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:15:38,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 23:15:38,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:15:38,568 INFO L87 Difference]: Start difference. First operand has 257548 states, 255244 states have (on average 2.1858378649449155) internal successors, (557922), 257547 states have internal predecessors, (557922), 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 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 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) [2023-11-24 23:15:43,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:15:43,058 INFO L93 Difference]: Finished difference Result 235787 states and 482120 transitions. [2023-11-24 23:15:43,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:15:43,068 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 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 45 [2023-11-24 23:15:43,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:15:44,679 INFO L225 Difference]: With dead ends: 235787 [2023-11-24 23:15:44,679 INFO L226 Difference]: Without dead ends: 234040 [2023-11-24 23:15:44,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:15:44,685 INFO L413 NwaCegarLoop]: 1082 mSDtfsCounter, 1 mSDsluCounter, 1258 mSDsCounter, 0 mSdLazyCounter, 1003 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2340 SdHoareTripleChecker+Invalid, 1003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-24 23:15:44,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2340 Invalid, 1003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1003 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-24 23:15:45,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234040 states. [2023-11-24 23:15:52,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234040 to 234040. [2023-11-24 23:15:52,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234040 states, 230731 states have (on average 2.0745500171195026) internal successors, (478663), 234039 states have internal predecessors, (478663), 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) [2023-11-24 23:15:54,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234040 states to 234040 states and 478663 transitions. [2023-11-24 23:15:54,443 INFO L78 Accepts]: Start accepts. Automaton has 234040 states and 478663 transitions. Word has length 45 [2023-11-24 23:15:54,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:15:54,445 INFO L495 AbstractCegarLoop]: Abstraction has 234040 states and 478663 transitions. [2023-11-24 23:15:54,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 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) [2023-11-24 23:15:54,446 INFO L276 IsEmpty]: Start isEmpty. Operand 234040 states and 478663 transitions. [2023-11-24 23:15:54,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-24 23:15:54,448 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:15:54,449 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:15:54,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:15:54,450 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2023-11-24 23:15:54,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:15:54,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1976258855, now seen corresponding path program 1 times [2023-11-24 23:15:54,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:15:54,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153563760] [2023-11-24 23:15:54,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:15:54,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:15:54,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:15:54,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:15:54,544 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:15:54,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153563760] [2023-11-24 23:15:54,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153563760] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:15:54,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:15:54,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:15:54,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975188044] [2023-11-24 23:15:54,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:15:54,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:15:54,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:15:54,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:15:54,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:15:54,549 INFO L87 Difference]: Start difference. First operand 234040 states and 478663 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2023-11-24 23:15:57,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:15:57,061 INFO L93 Difference]: Finished difference Result 234069 states and 478692 transitions. [2023-11-24 23:15:57,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:15:57,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 51 [2023-11-24 23:15:57,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:15:57,851 INFO L225 Difference]: With dead ends: 234069 [2023-11-24 23:15:57,852 INFO L226 Difference]: Without dead ends: 234069 [2023-11-24 23:15:57,852 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 [2023-11-24 23:15:57,854 INFO L413 NwaCegarLoop]: 1060 mSDtfsCounter, 28 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 2115 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:15:57,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 2115 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:15:59,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234069 states. [2023-11-24 23:16:04,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234069 to 234041. [2023-11-24 23:16:05,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234041 states, 230732 states have (on average 2.0745453599847443) internal successors, (478664), 234040 states have internal predecessors, (478664), 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)