./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_178bd611-e831-411c-91f5-55fd8817442e/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_178bd611-e831-411c-91f5-55fd8817442e/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_178bd611-e831-411c-91f5-55fd8817442e/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_178bd611-e831-411c-91f5-55fd8817442e/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.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_178bd611-e831-411c-91f5-55fd8817442e/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_178bd611-e831-411c-91f5-55fd8817442e/bin/uautomizer-verify-aQ6SnzHsRB --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2fcc1dcc31779a35e2f35b3e877295c0d57fe6307bda5e3a2aea7571c9345e88 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:38:40,222 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:38:40,328 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_178bd611-e831-411c-91f5-55fd8817442e/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 02:38:40,336 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:38:40,337 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:38:40,358 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:38:40,359 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:38:40,359 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:38:40,360 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:38:40,360 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:38:40,360 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:38:40,360 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:38:40,361 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:38:40,361 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:38:40,361 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:38:40,361 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:38:40,361 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:38:40,361 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:38:40,361 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:38:40,362 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:38:40,362 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:38:40,362 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:38:40,362 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 02:38:40,362 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:38:40,362 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:38:40,362 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:38:40,362 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:38:40,362 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:38:40,362 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:38:40,363 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:38:40,363 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:38:40,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:38:40,363 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:38:40,363 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:38:40,363 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:38:40,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:38:40,364 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:38:40,364 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:38:40,364 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:38:40,364 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:38:40,364 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:38:40,364 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:38:40,364 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:38:40,365 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:38:40,365 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:38:40,365 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:38:40,365 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_178bd611-e831-411c-91f5-55fd8817442e/bin/uautomizer-verify-aQ6SnzHsRB 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 -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2fcc1dcc31779a35e2f35b3e877295c0d57fe6307bda5e3a2aea7571c9345e88 [2024-11-28 02:38:40,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:38:40,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:38:40,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:38:40,714 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:38:40,716 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:38:40,717 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_178bd611-e831-411c-91f5-55fd8817442e/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/05-lval_ls_05-glob_idx_rc.i [2024-11-28 02:38:43,650 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_178bd611-e831-411c-91f5-55fd8817442e/bin/uautomizer-verify-aQ6SnzHsRB/data/b5047a9f3/d5e407fa759f4244bf9e7172d518d4c1/FLAG48cd785fa [2024-11-28 02:38:44,068 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:38:44,072 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_178bd611-e831-411c-91f5-55fd8817442e/sv-benchmarks/c/goblint-regression/05-lval_ls_05-glob_idx_rc.i [2024-11-28 02:38:44,095 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_178bd611-e831-411c-91f5-55fd8817442e/bin/uautomizer-verify-aQ6SnzHsRB/data/b5047a9f3/d5e407fa759f4244bf9e7172d518d4c1/FLAG48cd785fa [2024-11-28 02:38:44,240 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_178bd611-e831-411c-91f5-55fd8817442e/bin/uautomizer-verify-aQ6SnzHsRB/data/b5047a9f3/d5e407fa759f4244bf9e7172d518d4c1 [2024-11-28 02:38:44,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:38:44,245 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:38:44,247 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:38:44,248 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:38:44,253 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:38:44,254 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:38:44" (1/1) ... [2024-11-28 02:38:44,255 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76529059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:44, skipping insertion in model container [2024-11-28 02:38:44,256 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:38:44" (1/1) ... [2024-11-28 02:38:44,299 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:38:44,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:38:44,761 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:38:44,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:38:44,882 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:38:44,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:44 WrapperNode [2024-11-28 02:38:44,884 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:38:44,885 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:38:44,886 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:38:44,886 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:38:44,893 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:44" (1/1) ... [2024-11-28 02:38:44,911 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:44" (1/1) ... [2024-11-28 02:38:44,943 INFO L138 Inliner]: procedures = 160, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2024-11-28 02:38:44,945 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:38:44,946 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:38:44,947 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:38:44,947 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:38:44,955 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:44" (1/1) ... [2024-11-28 02:38:44,955 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:44" (1/1) ... [2024-11-28 02:38:44,960 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:44" (1/1) ... [2024-11-28 02:38:44,961 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:44" (1/1) ... [2024-11-28 02:38:44,974 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:44" (1/1) ... [2024-11-28 02:38:44,979 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:44" (1/1) ... [2024-11-28 02:38:44,980 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:44" (1/1) ... [2024-11-28 02:38:44,981 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:44" (1/1) ... [2024-11-28 02:38:44,985 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:44" (1/1) ... [2024-11-28 02:38:44,987 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:38:44,991 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:38:44,992 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:38:44,992 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:38:44,993 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:44" (1/1) ... [2024-11-28 02:38:45,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:38:45,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_178bd611-e831-411c-91f5-55fd8817442e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:38:45,035 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_178bd611-e831-411c-91f5-55fd8817442e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:38:45,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_178bd611-e831-411c-91f5-55fd8817442e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:38:45,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-28 02:38:45,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-28 02:38:45,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:38:45,059 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-28 02:38:45,059 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-28 02:38:45,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 02:38:45,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:38:45,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:38:45,061 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 02:38:45,174 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:38:45,178 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:38:45,450 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 02:38:45,451 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:38:45,468 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:38:45,469 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 02:38:45,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:38:45 BoogieIcfgContainer [2024-11-28 02:38:45,470 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:38:45,473 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:38:45,473 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:38:45,481 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:38:45,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:38:44" (1/3) ... [2024-11-28 02:38:45,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@457df74c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:38:45, skipping insertion in model container [2024-11-28 02:38:45,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:38:44" (2/3) ... [2024-11-28 02:38:45,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@457df74c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:38:45, skipping insertion in model container [2024-11-28 02:38:45,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:38:45" (3/3) ... [2024-11-28 02:38:45,484 INFO L128 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_05-glob_idx_rc.i [2024-11-28 02:38:45,503 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:38:45,506 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 05-lval_ls_05-glob_idx_rc.i that has 2 procedures, 70 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2024-11-28 02:38:45,507 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 02:38:45,604 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 02:38:45,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 69 transitions, 142 flow [2024-11-28 02:38:45,730 INFO L124 PetriNetUnfolderBase]: 0/68 cut-off events. [2024-11-28 02:38:45,734 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:38:45,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 68 events. 0/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-28 02:38:45,742 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 69 transitions, 142 flow [2024-11-28 02:38:45,746 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 68 transitions, 139 flow [2024-11-28 02:38:45,762 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:38:45,783 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=PETRI_NET, 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;@ece7c16, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:38:45,783 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-28 02:38:45,798 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:38:45,798 INFO L124 PetriNetUnfolderBase]: 0/34 cut-off events. [2024-11-28 02:38:45,798 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:38:45,798 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:38:45,799 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:38:45,799 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)] === [2024-11-28 02:38:45,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:38:45,806 INFO L85 PathProgramCache]: Analyzing trace with hash -567597011, now seen corresponding path program 1 times [2024-11-28 02:38:45,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:38:45,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076271818] [2024-11-28 02:38:45,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:38:45,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:38:46,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:38:46,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:38:46,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:38:46,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076271818] [2024-11-28 02:38:46,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076271818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:38:46,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:38:46,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:38:46,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120250134] [2024-11-28 02:38:46,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:38:46,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:38:46,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:38:46,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:38:46,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:38:47,291 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 69 [2024-11-28 02:38:47,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 68 transitions, 139 flow. Second operand has 6 states, 6 states have (on average 46.166666666666664) internal successors, (277), 6 states have internal predecessors, (277), 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) [2024-11-28 02:38:47,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:38:47,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 69 [2024-11-28 02:38:47,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:38:47,681 INFO L124 PetriNetUnfolderBase]: 198/736 cut-off events. [2024-11-28 02:38:47,681 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 02:38:47,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1181 conditions, 736 events. 198/736 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 4547 event pairs, 41 based on Foata normal form. 0/708 useless extension candidates. Maximal degree in co-relation 1153. Up to 183 conditions per place. [2024-11-28 02:38:47,694 INFO L140 encePairwiseOnDemand]: 47/69 looper letters, 68 selfloop transitions, 42 changer transitions 0/154 dead transitions. [2024-11-28 02:38:47,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 154 transitions, 531 flow [2024-11-28 02:38:47,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:38:47,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:38:47,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 382 transitions. [2024-11-28 02:38:47,717 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9227053140096618 [2024-11-28 02:38:47,719 INFO L175 Difference]: Start difference. First operand has 72 places, 68 transitions, 139 flow. Second operand 6 states and 382 transitions. [2024-11-28 02:38:47,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 154 transitions, 531 flow [2024-11-28 02:38:47,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 154 transitions, 530 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:38:47,738 INFO L231 Difference]: Finished difference. Result has 81 places, 114 transitions, 454 flow [2024-11-28 02:38:47,741 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=454, PETRI_PLACES=81, PETRI_TRANSITIONS=114} [2024-11-28 02:38:47,746 INFO L279 CegarLoopForPetriNet]: 72 programPoint places, 9 predicate places. [2024-11-28 02:38:47,746 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 114 transitions, 454 flow [2024-11-28 02:38:47,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 46.166666666666664) internal successors, (277), 6 states have internal predecessors, (277), 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) [2024-11-28 02:38:47,748 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:38:47,748 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:38:47,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:38:47,748 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)] === [2024-11-28 02:38:47,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:38:47,749 INFO L85 PathProgramCache]: Analyzing trace with hash 2088114994, now seen corresponding path program 1 times [2024-11-28 02:38:47,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:38:47,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863511455] [2024-11-28 02:38:47,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:38:47,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:38:47,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:38:48,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:38:48,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:38:48,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863511455] [2024-11-28 02:38:48,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863511455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:38:48,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:38:48,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:38:48,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114022724] [2024-11-28 02:38:48,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:38:48,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:38:48,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:38:48,341 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:38:48,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:38:48,618 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 69 [2024-11-28 02:38:48,618 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 114 transitions, 454 flow. Second operand has 6 states, 6 states have (on average 46.166666666666664) internal successors, (277), 6 states have internal predecessors, (277), 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) [2024-11-28 02:38:48,619 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:38:48,619 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 69 [2024-11-28 02:38:48,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:38:48,973 INFO L124 PetriNetUnfolderBase]: 342/1084 cut-off events. [2024-11-28 02:38:48,973 INFO L125 PetriNetUnfolderBase]: For 527/558 co-relation queries the response was YES. [2024-11-28 02:38:48,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2750 conditions, 1084 events. 342/1084 cut-off events. For 527/558 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 7170 event pairs, 67 based on Foata normal form. 19/1092 useless extension candidates. Maximal degree in co-relation 2718. Up to 476 conditions per place. [2024-11-28 02:38:48,992 INFO L140 encePairwiseOnDemand]: 52/69 looper letters, 90 selfloop transitions, 53 changer transitions 3/189 dead transitions. [2024-11-28 02:38:48,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 189 transitions, 1082 flow [2024-11-28 02:38:48,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:38:48,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:38:48,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 350 transitions. [2024-11-28 02:38:49,000 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8454106280193237 [2024-11-28 02:38:49,000 INFO L175 Difference]: Start difference. First operand has 81 places, 114 transitions, 454 flow. Second operand 6 states and 350 transitions. [2024-11-28 02:38:49,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 189 transitions, 1082 flow [2024-11-28 02:38:49,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 189 transitions, 1082 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 02:38:49,015 INFO L231 Difference]: Finished difference. Result has 91 places, 165 transitions, 960 flow [2024-11-28 02:38:49,016 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=960, PETRI_PLACES=91, PETRI_TRANSITIONS=165} [2024-11-28 02:38:49,017 INFO L279 CegarLoopForPetriNet]: 72 programPoint places, 19 predicate places. [2024-11-28 02:38:49,017 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 165 transitions, 960 flow [2024-11-28 02:38:49,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 46.166666666666664) internal successors, (277), 6 states have internal predecessors, (277), 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) [2024-11-28 02:38:49,018 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:38:49,019 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:38:49,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:38:49,019 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)] === [2024-11-28 02:38:49,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:38:49,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1178490366, now seen corresponding path program 1 times [2024-11-28 02:38:49,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:38:49,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048091678] [2024-11-28 02:38:49,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:38:49,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:38:49,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:38:49,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:38:49,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:38:49,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048091678] [2024-11-28 02:38:49,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048091678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:38:49,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:38:49,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:38:49,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111909352] [2024-11-28 02:38:49,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:38:49,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:38:49,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:38:49,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:38:49,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:38:49,721 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 69 [2024-11-28 02:38:49,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 165 transitions, 960 flow. Second operand has 6 states, 6 states have (on average 44.333333333333336) internal successors, (266), 6 states have internal predecessors, (266), 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) [2024-11-28 02:38:49,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:38:49,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 69 [2024-11-28 02:38:49,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:38:50,193 INFO L124 PetriNetUnfolderBase]: 487/1411 cut-off events. [2024-11-28 02:38:50,193 INFO L125 PetriNetUnfolderBase]: For 2031/2075 co-relation queries the response was YES. [2024-11-28 02:38:50,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4638 conditions, 1411 events. 487/1411 cut-off events. For 2031/2075 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 9823 event pairs, 86 based on Foata normal form. 23/1413 useless extension candidates. Maximal degree in co-relation 4600. Up to 695 conditions per place. [2024-11-28 02:38:50,207 INFO L140 encePairwiseOnDemand]: 52/69 looper letters, 111 selfloop transitions, 58 changer transitions 36/249 dead transitions. [2024-11-28 02:38:50,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 249 transitions, 1878 flow [2024-11-28 02:38:50,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:38:50,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:38:50,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 340 transitions. [2024-11-28 02:38:50,211 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.821256038647343 [2024-11-28 02:38:50,211 INFO L175 Difference]: Start difference. First operand has 91 places, 165 transitions, 960 flow. Second operand 6 states and 340 transitions. [2024-11-28 02:38:50,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 249 transitions, 1878 flow [2024-11-28 02:38:50,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 249 transitions, 1870 flow, removed 4 selfloop flow, removed 0 redundant places. [2024-11-28 02:38:50,233 INFO L231 Difference]: Finished difference. Result has 100 places, 192 transitions, 1360 flow [2024-11-28 02:38:50,234 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=952, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1360, PETRI_PLACES=100, PETRI_TRANSITIONS=192} [2024-11-28 02:38:50,236 INFO L279 CegarLoopForPetriNet]: 72 programPoint places, 28 predicate places. [2024-11-28 02:38:50,236 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 192 transitions, 1360 flow [2024-11-28 02:38:50,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.333333333333336) internal successors, (266), 6 states have internal predecessors, (266), 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) [2024-11-28 02:38:50,237 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:38:50,238 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:38:50,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:38:50,238 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 02:38:50,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:38:50,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1309158499, now seen corresponding path program 1 times [2024-11-28 02:38:50,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:38:50,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774727824] [2024-11-28 02:38:50,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:38:50,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:38:50,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:38:50,281 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:38:50,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:38:50,331 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:38:50,332 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:38:50,333 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2024-11-28 02:38:50,336 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-11-28 02:38:50,336 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-11-28 02:38:50,336 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-11-28 02:38:50,336 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-11-28 02:38:50,336 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-11-28 02:38:50,337 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-11-28 02:38:50,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:38:50,337 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 02:38:50,391 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 02:38:50,391 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:38:50,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:38:50 BasicIcfg [2024-11-28 02:38:50,400 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:38:50,400 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:38:50,400 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:38:50,401 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:38:50,402 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:38:45" (3/4) ... [2024-11-28 02:38:50,403 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-28 02:38:50,458 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 1. [2024-11-28 02:38:50,508 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_178bd611-e831-411c-91f5-55fd8817442e/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:38:50,508 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_178bd611-e831-411c-91f5-55fd8817442e/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 02:38:50,508 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:38:50,510 INFO L158 Benchmark]: Toolchain (without parser) took 6264.02ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 91.7MB in the beginning and 60.8MB in the end (delta: 30.8MB). Peak memory consumption was 53.8MB. Max. memory is 16.1GB. [2024-11-28 02:38:50,510 INFO L158 Benchmark]: CDTParser took 1.62ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 73.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:38:50,511 INFO L158 Benchmark]: CACSL2BoogieTranslator took 637.17ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 72.9MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:38:50,512 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.84ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 71.1MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:38:50,512 INFO L158 Benchmark]: Boogie Preprocessor took 44.34ms. Allocated memory is still 117.4MB. Free memory was 70.9MB in the beginning and 69.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:38:50,514 INFO L158 Benchmark]: RCFGBuilder took 478.80ms. Allocated memory is still 117.4MB. Free memory was 69.6MB in the beginning and 56.6MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:38:50,514 INFO L158 Benchmark]: TraceAbstraction took 4927.16ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 56.2MB in the beginning and 66.6MB in the end (delta: -10.4MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2024-11-28 02:38:50,515 INFO L158 Benchmark]: Witness Printer took 107.62ms. Allocated memory is still 142.6MB. Free memory was 66.6MB in the beginning and 60.8MB in the end (delta: 5.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:38:50,517 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.62ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 73.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 637.17ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 72.9MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.84ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 71.1MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.34ms. Allocated memory is still 117.4MB. Free memory was 70.9MB in the beginning and 69.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 478.80ms. Allocated memory is still 117.4MB. Free memory was 69.6MB in the beginning and 56.6MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4927.16ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 56.2MB in the beginning and 66.6MB in the end (delta: -10.4MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * Witness Printer took 107.62ms. Allocated memory is still 142.6MB. Free memory was 66.6MB in the beginning and 60.8MB in the end (delta: 5.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 687]: 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}] [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}] [L687] 0 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, id=-1] Now there is a data race (on the heap) between C: data[4]++ [681] and C: data[4]++ [687] - 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. - 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. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 340 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 231 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 129 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 824 IncrementalHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 129 mSolverCounterUnsat, 2 mSDtfsCounter, 824 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=1360occurred in iteration=3, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s 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, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-28 02:38:50,541 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_178bd611-e831-411c-91f5-55fd8817442e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with 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(DATA-RACE)