./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/05-lval_ls_05-glob_idx_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a0165632 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_a818a9c7-69bb-4187-badb-04fe3b9e701c/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a818a9c7-69bb-4187-badb-04fe3b9e701c/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a818a9c7-69bb-4187-badb-04fe3b9e701c/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a818a9c7-69bb-4187-badb-04fe3b9e701c/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/05-lval_ls_05-glob_idx_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a818a9c7-69bb-4187-badb-04fe3b9e701c/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a818a9c7-69bb-4187-badb-04fe3b9e701c/bin/utaipan-verify-YMUCfTKeje --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 2fcc1dcc31779a35e2f35b3e877295c0d57fe6307bda5e3a2aea7571c9345e88 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:00:06,783 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:00:06,879 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a818a9c7-69bb-4187-badb-04fe3b9e701c/bin/utaipan-verify-YMUCfTKeje/config/svcomp-DataRace-32bit-Taipan_Default.epf [2024-11-09 07:00:06,886 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:00:06,889 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:00:06,929 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:00:06,930 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:00:06,930 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:00:06,931 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:00:06,933 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:00:06,934 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:00:06,934 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:00:06,934 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:00:06,935 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:00:06,939 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:00:06,939 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:00:06,939 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:00:06,940 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:00:06,940 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:00:06,940 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:00:06,941 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:00:06,941 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:00:06,942 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:00:06,942 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:00:06,943 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:00:06,943 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:00:06,950 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:00:06,950 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:00:06,950 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:00:06,950 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:00:06,951 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:00:06,951 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-09 07:00:06,951 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:00:06,951 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:00:06,952 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:00:06,952 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:00:06,952 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:00:06,952 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:00:06,953 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:00:06,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:00:06,954 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:00:06,955 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:00:06,955 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:00:06,955 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:00:06,956 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:00:06,956 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:00:06,956 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:00:06,957 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:00:06,957 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_a818a9c7-69bb-4187-badb-04fe3b9e701c/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a818a9c7-69bb-4187-badb-04fe3b9e701c/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2fcc1dcc31779a35e2f35b3e877295c0d57fe6307bda5e3a2aea7571c9345e88 [2024-11-09 07:00:07,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:00:07,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:00:07,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:00:07,264 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:00:07,264 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:00:07,265 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a818a9c7-69bb-4187-badb-04fe3b9e701c/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/goblint-regression/05-lval_ls_05-glob_idx_rc.i Unable to find full path for "g++" [2024-11-09 07:00:09,271 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:00:09,532 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:00:09,533 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a818a9c7-69bb-4187-badb-04fe3b9e701c/sv-benchmarks/c/goblint-regression/05-lval_ls_05-glob_idx_rc.i [2024-11-09 07:00:09,549 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a818a9c7-69bb-4187-badb-04fe3b9e701c/bin/utaipan-verify-YMUCfTKeje/data/a2bf74c24/59c67d2fe4944e2e840f9f429da38e2c/FLAG0947a5048 [2024-11-09 07:00:09,567 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a818a9c7-69bb-4187-badb-04fe3b9e701c/bin/utaipan-verify-YMUCfTKeje/data/a2bf74c24/59c67d2fe4944e2e840f9f429da38e2c [2024-11-09 07:00:09,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:00:09,572 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:00:09,574 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:00:09,574 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:00:09,580 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:00:09,580 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:00:09" (1/1) ... [2024-11-09 07:00:09,581 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31ec1988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:09, skipping insertion in model container [2024-11-09 07:00:09,582 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:00:09" (1/1) ... [2024-11-09 07:00:09,629 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:00:10,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:00:10,042 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:00:10,106 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:00:10,151 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:00:10,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:10 WrapperNode [2024-11-09 07:00:10,151 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:00:10,153 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:00:10,154 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:00:10,154 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:00:10,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:10" (1/1) ... [2024-11-09 07:00:10,177 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:10" (1/1) ... [2024-11-09 07:00:10,210 INFO L138 Inliner]: procedures = 160, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2024-11-09 07:00:10,211 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:00:10,211 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:00:10,212 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:00:10,212 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:00:10,224 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:10" (1/1) ... [2024-11-09 07:00:10,224 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:10" (1/1) ... [2024-11-09 07:00:10,227 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:10" (1/1) ... [2024-11-09 07:00:10,230 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:10" (1/1) ... [2024-11-09 07:00:10,238 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:10" (1/1) ... [2024-11-09 07:00:10,240 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:10" (1/1) ... [2024-11-09 07:00:10,241 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:10" (1/1) ... [2024-11-09 07:00:10,242 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:10" (1/1) ... [2024-11-09 07:00:10,245 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:00:10,246 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:00:10,246 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:00:10,246 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:00:10,247 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:10" (1/1) ... [2024-11-09 07:00:10,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:00:10,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a818a9c7-69bb-4187-badb-04fe3b9e701c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:00:10,297 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a818a9c7-69bb-4187-badb-04fe3b9e701c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:00:10,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a818a9c7-69bb-4187-badb-04fe3b9e701c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:00:10,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 07:00:10,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 07:00:10,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:00:10,331 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-09 07:00:10,331 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-09 07:00:10,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:00:10,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:00:10,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:00:10,337 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 07:00:10,466 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:00:10,467 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:00:10,681 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 07:00:10,681 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:00:10,707 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:00:10,707 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 07:00:10,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:00:10 BoogieIcfgContainer [2024-11-09 07:00:10,708 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:00:10,711 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:00:10,712 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:00:10,716 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:00:10,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:00:09" (1/3) ... [2024-11-09 07:00:10,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4713de9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:00:10, skipping insertion in model container [2024-11-09 07:00:10,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:00:10" (2/3) ... [2024-11-09 07:00:10,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4713de9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:00:10, skipping insertion in model container [2024-11-09 07:00:10,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:00:10" (3/3) ... [2024-11-09 07:00:10,721 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_05-glob_idx_rc.i [2024-11-09 07:00:10,743 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:00:10,744 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-09 07:00:10,744 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 07:00:10,833 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:00:10,866 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 73 places, 69 transitions, 142 flow [2024-11-09 07:00:10,967 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 571 states, 563 states have (on average 1.9040852575488454) internal successors, (1072), 570 states have internal predecessors, (1072), 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) [2024-11-09 07:00:11,023 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:00:11,031 INFO L333 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, 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;@5cdcce56, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:00:11,031 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-09 07:00:11,035 INFO L276 IsEmpty]: Start isEmpty. Operand has 571 states, 563 states have (on average 1.9040852575488454) internal successors, (1072), 570 states have internal predecessors, (1072), 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) [2024-11-09 07:00:11,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-09 07:00:11,043 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:00:11,044 INFO L215 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] [2024-11-09 07:00:11,044 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 07:00:11,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:11,051 INFO L85 PathProgramCache]: Analyzing trace with hash -567597011, now seen corresponding path program 1 times [2024-11-09 07:00:11,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:00:11,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969163097] [2024-11-09 07:00:11,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:11,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:12,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:00:12,115 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:00:12,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969163097] [2024-11-09 07:00:12,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969163097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:12,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:12,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:00:12,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832297195] [2024-11-09 07:00:12,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:12,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:00:12,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:00:12,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:00:12,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:00:12,167 INFO L87 Difference]: Start difference. First operand has 571 states, 563 states have (on average 1.9040852575488454) internal successors, (1072), 570 states have internal predecessors, (1072), 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 5.6) internal successors, (28), 6 states have internal predecessors, (28), 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) [2024-11-09 07:00:12,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:00:12,730 INFO L93 Difference]: Finished difference Result 973 states and 1836 transitions. [2024-11-09 07:00:12,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:00:12,734 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 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 28 [2024-11-09 07:00:12,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:00:12,784 INFO L225 Difference]: With dead ends: 973 [2024-11-09 07:00:12,784 INFO L226 Difference]: Without dead ends: 925 [2024-11-09 07:00:12,791 INFO L431 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 [2024-11-09 07:00:12,796 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 148 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 07:00:12,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 199 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 07:00:12,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2024-11-09 07:00:12,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 661. [2024-11-09 07:00:12,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 654 states have (on average 1.9204892966360856) internal successors, (1256), 660 states have internal predecessors, (1256), 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) [2024-11-09 07:00:12,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 1256 transitions. [2024-11-09 07:00:12,907 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 1256 transitions. Word has length 28 [2024-11-09 07:00:12,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:00:12,908 INFO L471 AbstractCegarLoop]: Abstraction has 661 states and 1256 transitions. [2024-11-09 07:00:12,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 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) [2024-11-09 07:00:12,908 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 1256 transitions. [2024-11-09 07:00:12,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-09 07:00:12,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:00:12,911 INFO L215 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] [2024-11-09 07:00:12,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:00:12,912 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 07:00:12,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:12,913 INFO L85 PathProgramCache]: Analyzing trace with hash 2088114994, now seen corresponding path program 1 times [2024-11-09 07:00:12,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:00:12,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025167706] [2024-11-09 07:00:12,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:12,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:12,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:13,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:00:13,379 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:00:13,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025167706] [2024-11-09 07:00:13,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025167706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:13,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:13,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:00:13,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263248686] [2024-11-09 07:00:13,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:13,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:00:13,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:00:13,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:00:13,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:00:13,384 INFO L87 Difference]: Start difference. First operand 661 states and 1256 transitions. Second operand has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 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) [2024-11-09 07:00:13,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:00:13,720 INFO L93 Difference]: Finished difference Result 974 states and 1831 transitions. [2024-11-09 07:00:13,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:00:13,722 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 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 36 [2024-11-09 07:00:13,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:00:13,727 INFO L225 Difference]: With dead ends: 974 [2024-11-09 07:00:13,728 INFO L226 Difference]: Without dead ends: 800 [2024-11-09 07:00:13,732 INFO L431 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 [2024-11-09 07:00:13,733 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 90 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:00:13,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 166 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 07:00:13,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2024-11-09 07:00:13,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 625. [2024-11-09 07:00:13,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 618 states have (on average 1.896440129449838) internal successors, (1172), 624 states have internal predecessors, (1172), 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) [2024-11-09 07:00:13,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 1172 transitions. [2024-11-09 07:00:13,770 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 1172 transitions. Word has length 36 [2024-11-09 07:00:13,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:00:13,771 INFO L471 AbstractCegarLoop]: Abstraction has 625 states and 1172 transitions. [2024-11-09 07:00:13,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 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) [2024-11-09 07:00:13,772 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 1172 transitions. [2024-11-09 07:00:13,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-09 07:00:13,776 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:00:13,776 INFO L215 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] [2024-11-09 07:00:13,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:00:13,777 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 07:00:13,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:13,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1178490366, now seen corresponding path program 1 times [2024-11-09 07:00:13,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:00:13,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433398630] [2024-11-09 07:00:13,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:13,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:13,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:00:14,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:00:14,188 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:00:14,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433398630] [2024-11-09 07:00:14,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433398630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:00:14,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:00:14,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:00:14,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084972670] [2024-11-09 07:00:14,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:00:14,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:00:14,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:00:14,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:00:14,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:00:14,192 INFO L87 Difference]: Start difference. First operand 625 states and 1172 transitions. Second operand has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 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) [2024-11-09 07:00:14,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:00:14,505 INFO L93 Difference]: Finished difference Result 849 states and 1553 transitions. [2024-11-09 07:00:14,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:00:14,507 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 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 37 [2024-11-09 07:00:14,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:00:14,511 INFO L225 Difference]: With dead ends: 849 [2024-11-09 07:00:14,512 INFO L226 Difference]: Without dead ends: 704 [2024-11-09 07:00:14,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:00:14,515 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 74 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:00:14,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 155 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 07:00:14,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2024-11-09 07:00:14,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 588. [2024-11-09 07:00:14,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 581 states have (on average 1.8485370051635113) internal successors, (1074), 587 states have internal predecessors, (1074), 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) [2024-11-09 07:00:14,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 1074 transitions. [2024-11-09 07:00:14,545 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 1074 transitions. Word has length 37 [2024-11-09 07:00:14,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:00:14,546 INFO L471 AbstractCegarLoop]: Abstraction has 588 states and 1074 transitions. [2024-11-09 07:00:14,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 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) [2024-11-09 07:00:14,547 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 1074 transitions. [2024-11-09 07:00:14,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-09 07:00:14,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:00:14,551 INFO L215 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] [2024-11-09 07:00:14,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 07:00:14,552 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-09 07:00:14,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:00:14,553 INFO L85 PathProgramCache]: Analyzing trace with hash 2128608644, now seen corresponding path program 1 times [2024-11-09 07:00:14,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:00:14,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493434154] [2024-11-09 07:00:14,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:00:14,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:00:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:00:14,597 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:00:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:00:14,652 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 07:00:14,652 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:00:14,653 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2024-11-09 07:00:14,656 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-11-09 07:00:14,656 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (4 of 7 remaining) [2024-11-09 07:00:14,657 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-11-09 07:00:14,657 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-11-09 07:00:14,657 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-11-09 07:00:14,657 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-11-09 07:00:14,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 07:00:14,661 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 07:00:14,703 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 07:00:14,703 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 07:00:14,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:00:14 BasicIcfg [2024-11-09 07:00:14,706 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 07:00:14,707 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 07:00:14,707 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 07:00:14,707 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 07:00:14,708 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:00:10" (3/4) ... [2024-11-09 07:00:14,709 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 07:00:14,756 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a818a9c7-69bb-4187-badb-04fe3b9e701c/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 07:00:14,760 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 07:00:14,761 INFO L158 Benchmark]: Toolchain (without parser) took 5188.50ms. Allocated memory was 134.2MB in the beginning and 169.9MB in the end (delta: 35.7MB). Free memory was 97.0MB in the beginning and 64.0MB in the end (delta: 33.1MB). Peak memory consumption was 70.7MB. Max. memory is 16.1GB. [2024-11-09 07:00:14,761 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 134.2MB. Free memory is still 101.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:00:14,761 INFO L158 Benchmark]: CACSL2BoogieTranslator took 578.10ms. Allocated memory is still 134.2MB. Free memory was 96.6MB in the beginning and 75.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 07:00:14,762 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.22ms. Allocated memory is still 134.2MB. Free memory was 75.6MB in the beginning and 73.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:00:14,762 INFO L158 Benchmark]: Boogie Preprocessor took 33.71ms. Allocated memory is still 134.2MB. Free memory was 73.5MB in the beginning and 71.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:00:14,765 INFO L158 Benchmark]: RCFGBuilder took 462.30ms. Allocated memory is still 134.2MB. Free memory was 71.9MB in the beginning and 57.7MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 07:00:14,765 INFO L158 Benchmark]: TraceAbstraction took 3995.23ms. Allocated memory was 134.2MB in the beginning and 169.9MB in the end (delta: 35.7MB). Free memory was 57.2MB in the beginning and 67.1MB in the end (delta: -9.9MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. [2024-11-09 07:00:14,766 INFO L158 Benchmark]: Witness Printer took 52.63ms. Allocated memory is still 169.9MB. Free memory was 66.1MB in the beginning and 64.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:00:14,768 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 134.2MB. Free memory is still 101.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 578.10ms. Allocated memory is still 134.2MB. Free memory was 96.6MB in the beginning and 75.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.22ms. Allocated memory is still 134.2MB. Free memory was 75.6MB in the beginning and 73.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.71ms. Allocated memory is still 134.2MB. Free memory was 73.5MB in the beginning and 71.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 462.30ms. Allocated memory is still 134.2MB. Free memory was 71.9MB in the beginning and 57.7MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3995.23ms. Allocated memory was 134.2MB in the beginning and 169.9MB in the end (delta: 35.7MB). Free memory was 57.2MB in the beginning and 67.1MB in the end (delta: -9.9MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. * Witness Printer took 52.63ms. Allocated memory is still 169.9MB. Free memory was 66.1MB in the beginning and 64.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 681]: Data race detected Data race detected The following path leads to a data race: [L679] 0 int data[10]; VAL [data={1:0}] [L685] 0 pthread_t id; VAL [data={1:0}] [L686] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, data={1:0}, id=-1] [L681] EXPR 1 data[4] VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}] [L681] 1 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}] [L687] EXPR 0 data[4] VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, id=-1] [L687] 0 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, id=-1] [L681] 1 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}] Now there is a data race (on the heap) between C: data[4]++ [687] and C: data[4]++ [681] - UnprovableResult [Line: 687]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 687]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 686]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 681]: 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, 94 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 312 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 312 mSDsluCounter, 520 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 273 mSDsCounter, 97 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 612 IncrementalHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 97 mSolverCounterUnsat, 247 mSDtfsCounter, 612 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=661occurred in iteration=1, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 555 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 98 ConstructedInterpolants, 0 QuantifiedInterpolants, 365 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! [2024-11-09 07:00:14,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a818a9c7-69bb-4187-badb-04fe3b9e701c/bin/utaipan-verify-YMUCfTKeje/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