./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.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_d2a66211-d344-4555-b346-99d8cc8c4882/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a66211-d344-4555-b346-99d8cc8c4882/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_d2a66211-d344-4555-b346-99d8cc8c4882/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a66211-d344-4555-b346-99d8cc8c4882/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a66211-d344-4555-b346-99d8cc8c4882/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_d2a66211-d344-4555-b346-99d8cc8c4882/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 8627cbce136f39d723fc0eaadf7d8371bf261a07ec5ac59da2e79df34069083d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:16:14,019 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:16:14,110 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a66211-d344-4555-b346-99d8cc8c4882/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-28 03:16:14,116 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:16:14,117 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:16:14,145 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:16:14,146 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:16:14,146 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:16:14,147 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:16:14,148 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:16:14,149 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:16:14,149 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:16:14,149 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:16:14,149 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:16:14,150 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:16:14,150 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:16:14,150 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:16:14,150 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:16:14,150 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:16:14,150 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:16:14,150 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:16:14,150 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:16:14,151 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-28 03:16:14,151 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:16:14,151 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:16:14,151 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:16:14,151 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:16:14,151 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:16:14,151 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:16:14,151 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:16:14,152 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:16:14,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:16:14,152 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:16:14,152 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:16:14,152 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:16:14,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:16:14,152 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:16:14,152 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:16:14,153 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:16:14,153 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:16:14,153 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:16:14,153 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:16:14,153 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:16:14,153 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:16:14,153 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:16:14,153 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:16:14,153 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_d2a66211-d344-4555-b346-99d8cc8c4882/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 -> 8627cbce136f39d723fc0eaadf7d8371bf261a07ec5ac59da2e79df34069083d [2024-11-28 03:16:14,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:16:14,478 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:16:14,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:16:14,481 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:16:14,482 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:16:14,483 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a66211-d344-4555-b346-99d8cc8c4882/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i [2024-11-28 03:16:17,390 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a66211-d344-4555-b346-99d8cc8c4882/bin/uautomizer-verify-aQ6SnzHsRB/data/8d4921279/bbb7cb3742494a23a7c4ebac1b40dfff/FLAG66b2483a6 [2024-11-28 03:16:17,750 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:16:17,752 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a66211-d344-4555-b346-99d8cc8c4882/sv-benchmarks/c/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i [2024-11-28 03:16:17,772 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a66211-d344-4555-b346-99d8cc8c4882/bin/uautomizer-verify-aQ6SnzHsRB/data/8d4921279/bbb7cb3742494a23a7c4ebac1b40dfff/FLAG66b2483a6 [2024-11-28 03:16:17,791 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a66211-d344-4555-b346-99d8cc8c4882/bin/uautomizer-verify-aQ6SnzHsRB/data/8d4921279/bbb7cb3742494a23a7c4ebac1b40dfff [2024-11-28 03:16:17,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:16:17,797 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:16:17,798 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:16:17,799 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:16:17,803 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:16:17,804 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:16:17" (1/1) ... [2024-11-28 03:16:17,805 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@440840c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:17, skipping insertion in model container [2024-11-28 03:16:17,807 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:16:17" (1/1) ... [2024-11-28 03:16:17,851 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:16:18,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:16:18,247 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:16:18,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:16:18,342 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:16:18,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:18 WrapperNode [2024-11-28 03:16:18,344 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:16:18,345 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:16:18,345 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:16:18,345 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:16:18,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:18" (1/1) ... [2024-11-28 03:16:18,370 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:18" (1/1) ... [2024-11-28 03:16:18,390 INFO L138 Inliner]: procedures = 162, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 78 [2024-11-28 03:16:18,391 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:16:18,391 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:16:18,391 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:16:18,391 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:16:18,398 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:18" (1/1) ... [2024-11-28 03:16:18,398 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:18" (1/1) ... [2024-11-28 03:16:18,403 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:18" (1/1) ... [2024-11-28 03:16:18,404 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:18" (1/1) ... [2024-11-28 03:16:18,410 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:18" (1/1) ... [2024-11-28 03:16:18,411 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:18" (1/1) ... [2024-11-28 03:16:18,414 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:18" (1/1) ... [2024-11-28 03:16:18,415 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:18" (1/1) ... [2024-11-28 03:16:18,416 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:18" (1/1) ... [2024-11-28 03:16:18,418 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:16:18,419 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:16:18,419 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:16:18,419 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:16:18,420 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:18" (1/1) ... [2024-11-28 03:16:18,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:16:18,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a66211-d344-4555-b346-99d8cc8c4882/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:16:18,458 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a66211-d344-4555-b346-99d8cc8c4882/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:16:18,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a66211-d344-4555-b346-99d8cc8c4882/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:16:18,485 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2024-11-28 03:16:18,486 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2024-11-28 03:16:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 03:16:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:16:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-28 03:16:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 03:16:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:16:18,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:16:18,487 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 03:16:18,628 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:16:18,630 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:16:18,816 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:16:18,817 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:16:18,855 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:16:18,855 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:16:18,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:16:18 BoogieIcfgContainer [2024-11-28 03:16:18,861 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:16:18,864 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:16:18,864 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:16:18,872 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:16:18,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:16:17" (1/3) ... [2024-11-28 03:16:18,872 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ed24b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:16:18, skipping insertion in model container [2024-11-28 03:16:18,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:16:18" (2/3) ... [2024-11-28 03:16:18,873 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ed24b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:16:18, skipping insertion in model container [2024-11-28 03:16:18,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:16:18" (3/3) ... [2024-11-28 03:16:18,875 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_52-refine-protected-loop2-small_true.i [2024-11-28 03:16:18,897 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:16:18,898 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_52-refine-protected-loop2-small_true.i that has 2 procedures, 85 locations, 1 initial locations, 1 loop locations, and 5 error locations. [2024-11-28 03:16:18,899 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:16:18,998 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:16:19,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 89 transitions, 182 flow [2024-11-28 03:16:19,106 INFO L124 PetriNetUnfolderBase]: 5/88 cut-off events. [2024-11-28 03:16:19,109 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:16:19,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 88 events. 5/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2024-11-28 03:16:19,115 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 89 transitions, 182 flow [2024-11-28 03:16:19,120 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 84 transitions, 171 flow [2024-11-28 03:16:19,134 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:16:19,158 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;@4a9a1780, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:16:19,158 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-28 03:16:19,184 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:16:19,184 INFO L124 PetriNetUnfolderBase]: 0/42 cut-off events. [2024-11-28 03:16:19,185 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:16:19,185 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:16:19,186 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 03:16:19,187 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting workerErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONDATA_RACE, workerErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-28 03:16:19,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:19,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1364823480, now seen corresponding path program 1 times [2024-11-28 03:16:19,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:16:19,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19922821] [2024-11-28 03:16:19,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:19,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:16:19,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:16:19,540 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 03:16:19,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:16:19,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19922821] [2024-11-28 03:16:19,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19922821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:16:19,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:16:19,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:16:19,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041676159] [2024-11-28 03:16:19,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:16:19,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:16:19,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:16:19,580 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:16:19,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:16:19,637 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 89 [2024-11-28 03:16:19,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 84 transitions, 171 flow. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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 03:16:19,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:16:19,642 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 89 [2024-11-28 03:16:19,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:16:19,712 INFO L124 PetriNetUnfolderBase]: 2/79 cut-off events. [2024-11-28 03:16:19,713 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 03:16:19,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 79 events. 2/79 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 39 event pairs, 0 based on Foata normal form. 2/75 useless extension candidates. Maximal degree in co-relation 61. Up to 12 conditions per place. [2024-11-28 03:16:19,715 INFO L140 encePairwiseOnDemand]: 84/89 looper letters, 11 selfloop transitions, 2 changer transitions 3/79 dead transitions. [2024-11-28 03:16:19,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 79 transitions, 187 flow [2024-11-28 03:16:19,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:16:19,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:16:19,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2024-11-28 03:16:19,734 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.846441947565543 [2024-11-28 03:16:19,736 INFO L175 Difference]: Start difference. First operand has 84 places, 84 transitions, 171 flow. Second operand 3 states and 226 transitions. [2024-11-28 03:16:19,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 79 transitions, 187 flow [2024-11-28 03:16:19,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 79 transitions, 186 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:16:19,749 INFO L231 Difference]: Finished difference. Result has 82 places, 76 transitions, 158 flow [2024-11-28 03:16:19,753 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=82, PETRI_TRANSITIONS=76} [2024-11-28 03:16:19,757 INFO L279 CegarLoopForPetriNet]: 84 programPoint places, -2 predicate places. [2024-11-28 03:16:19,759 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 76 transitions, 158 flow [2024-11-28 03:16:19,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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 03:16:19,760 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:16:19,761 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 03:16:19,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:16:19,761 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONDATA_RACE, workerErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-28 03:16:19,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:19,762 INFO L85 PathProgramCache]: Analyzing trace with hash -998842324, now seen corresponding path program 1 times [2024-11-28 03:16:19,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:16:19,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589009012] [2024-11-28 03:16:19,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:19,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:16:19,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:16:19,909 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 03:16:19,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:16:19,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589009012] [2024-11-28 03:16:19,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589009012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:16:19,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:16:19,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:16:19,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792214251] [2024-11-28 03:16:19,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:16:19,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:16:19,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:16:19,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:16:19,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:16:19,940 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 89 [2024-11-28 03:16:19,941 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 76 transitions, 158 flow. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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 03:16:19,941 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:16:19,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 89 [2024-11-28 03:16:19,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:16:19,995 INFO L124 PetriNetUnfolderBase]: 2/84 cut-off events. [2024-11-28 03:16:19,995 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 03:16:19,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 84 events. 2/84 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 74. Up to 10 conditions per place. [2024-11-28 03:16:19,996 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 15 selfloop transitions, 3 changer transitions 0/78 dead transitions. [2024-11-28 03:16:19,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 78 transitions, 200 flow [2024-11-28 03:16:19,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:16:19,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:16:19,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 225 transitions. [2024-11-28 03:16:19,998 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8426966292134831 [2024-11-28 03:16:19,998 INFO L175 Difference]: Start difference. First operand has 82 places, 76 transitions, 158 flow. Second operand 3 states and 225 transitions. [2024-11-28 03:16:19,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 78 transitions, 200 flow [2024-11-28 03:16:19,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 78 transitions, 194 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:16:20,002 INFO L231 Difference]: Finished difference. Result has 77 places, 74 transitions, 161 flow [2024-11-28 03:16:20,003 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=161, PETRI_PLACES=77, PETRI_TRANSITIONS=74} [2024-11-28 03:16:20,004 INFO L279 CegarLoopForPetriNet]: 84 programPoint places, -7 predicate places. [2024-11-28 03:16:20,005 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 74 transitions, 161 flow [2024-11-28 03:16:20,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 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 03:16:20,005 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:16:20,005 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:16:20,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:16:20,006 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONDATA_RACE, workerErr1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-28 03:16:20,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:16:20,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1297318498, now seen corresponding path program 1 times [2024-11-28 03:16:20,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:16:20,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610014197] [2024-11-28 03:16:20,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:16:20,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:16:20,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:16:20,097 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 03:16:20,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:16:20,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610014197] [2024-11-28 03:16:20,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610014197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:16:20,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:16:20,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:16:20,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896428689] [2024-11-28 03:16:20,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:16:20,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:16:20,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:16:20,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:16:20,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:16:20,160 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 89 [2024-11-28 03:16:20,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 74 transitions, 161 flow. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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 03:16:20,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:16:20,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 89 [2024-11-28 03:16:20,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:16:20,201 INFO L124 PetriNetUnfolderBase]: 2/83 cut-off events. [2024-11-28 03:16:20,202 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-28 03:16:20,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 83 events. 2/83 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 37 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 76. Up to 17 conditions per place. [2024-11-28 03:16:20,204 INFO L140 encePairwiseOnDemand]: 86/89 looper letters, 0 selfloop transitions, 0 changer transitions 73/73 dead transitions. [2024-11-28 03:16:20,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 73 transitions, 187 flow [2024-11-28 03:16:20,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:16:20,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:16:20,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 224 transitions. [2024-11-28 03:16:20,207 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8389513108614233 [2024-11-28 03:16:20,207 INFO L175 Difference]: Start difference. First operand has 77 places, 74 transitions, 161 flow. Second operand 3 states and 224 transitions. [2024-11-28 03:16:20,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 73 transitions, 187 flow [2024-11-28 03:16:20,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 73 transitions, 184 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:16:20,209 INFO L231 Difference]: Finished difference. Result has 77 places, 0 transitions, 0 flow [2024-11-28 03:16:20,209 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=77, PETRI_TRANSITIONS=0} [2024-11-28 03:16:20,213 INFO L279 CegarLoopForPetriNet]: 84 programPoint places, -7 predicate places. [2024-11-28 03:16:20,213 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 0 transitions, 0 flow [2024-11-28 03:16:20,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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 03:16:20,216 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-11-28 03:16:20,218 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2024-11-28 03:16:20,218 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2024-11-28 03:16:20,219 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr2ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2024-11-28 03:16:20,219 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr3ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2024-11-28 03:16:20,219 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr4ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2024-11-28 03:16:20,219 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2024-11-28 03:16:20,219 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2024-11-28 03:16:20,219 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr2ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2024-11-28 03:16:20,219 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr3ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2024-11-28 03:16:20,219 INFO L782 garLoopResultBuilder]: Registering result SAFE for location workerErr4ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2024-11-28 03:16:20,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:16:20,220 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-28 03:16:20,226 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 03:16:20,226 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:16:20,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:16:20 BasicIcfg [2024-11-28 03:16:20,233 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:16:20,235 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:16:20,235 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:16:20,235 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:16:20,236 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:16:18" (3/4) ... [2024-11-28 03:16:20,238 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 03:16:20,241 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure worker [2024-11-28 03:16:20,245 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-28 03:16:20,245 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-28 03:16:20,245 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 03:16:20,245 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 03:16:20,322 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a66211-d344-4555-b346-99d8cc8c4882/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:16:20,322 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a66211-d344-4555-b346-99d8cc8c4882/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:16:20,322 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:16:20,324 INFO L158 Benchmark]: Toolchain (without parser) took 2526.85ms. Allocated memory is still 117.4MB. Free memory was 93.4MB in the beginning and 43.9MB in the end (delta: 49.5MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. [2024-11-28 03:16:20,325 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 167.8MB. Free memory was 104.4MB in the beginning and 104.2MB in the end (delta: 216.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:16:20,325 INFO L158 Benchmark]: CACSL2BoogieTranslator took 546.31ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 73.6MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 03:16:20,326 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.88ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 71.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:16:20,326 INFO L158 Benchmark]: Boogie Preprocessor took 26.78ms. Allocated memory is still 117.4MB. Free memory was 71.9MB in the beginning and 71.0MB in the end (delta: 916.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:16:20,326 INFO L158 Benchmark]: RCFGBuilder took 442.87ms. Allocated memory is still 117.4MB. Free memory was 71.0MB in the beginning and 56.8MB in the end (delta: 14.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:16:20,326 INFO L158 Benchmark]: TraceAbstraction took 1368.78ms. Allocated memory is still 117.4MB. Free memory was 56.4MB in the beginning and 48.3MB in the end (delta: 8.1MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2024-11-28 03:16:20,329 INFO L158 Benchmark]: Witness Printer took 87.95ms. Allocated memory is still 117.4MB. Free memory was 48.3MB in the beginning and 43.9MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:16:20,331 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 167.8MB. Free memory was 104.4MB in the beginning and 104.2MB in the end (delta: 216.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 546.31ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 73.6MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.88ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 71.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.78ms. Allocated memory is still 117.4MB. Free memory was 71.9MB in the beginning and 71.0MB in the end (delta: 916.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 442.87ms. Allocated memory is still 117.4MB. Free memory was 71.0MB in the beginning and 56.8MB in the end (delta: 14.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1368.78ms. Allocated memory is still 117.4MB. Free memory was 56.4MB in the beginning and 48.3MB in the end (delta: 8.1MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * Witness Printer took 87.95ms. Allocated memory is still 117.4MB. Free memory was 48.3MB in the beginning and 43.9MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 689]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 690]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 133 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 93 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 104 IncrementalHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 21 mSDtfsCounter, 104 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=171occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 133 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 136 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 - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-28 03:16:20,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2a66211-d344-4555-b346-99d8cc8c4882/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE