./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a705cf-6b43-4f6b-9883-44df691a4cf3/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a705cf-6b43-4f6b-9883-44df691a4cf3/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a705cf-6b43-4f6b-9883-44df691a4cf3/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a705cf-6b43-4f6b-9883-44df691a4cf3/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a705cf-6b43-4f6b-9883-44df691a4cf3/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a705cf-6b43-4f6b-9883-44df691a4cf3/bin/uautomizer-verify-jihMAELWvX --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 5ac72ff2379990464c5f55660be1e08b12557a61aceeef8401296ef66be035fc --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:33:33,701 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:33:33,814 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a705cf-6b43-4f6b-9883-44df691a4cf3/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-08 16:33:33,828 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:33:33,830 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:33:33,895 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:33:33,896 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:33:33,897 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:33:33,898 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:33:33,900 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:33:33,902 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:33:33,902 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:33:33,904 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:33:33,908 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:33:33,909 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:33:33,909 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:33:33,910 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:33:33,910 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:33:33,915 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:33:33,915 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:33:33,916 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:33:33,917 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:33:33,921 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-08 16:33:33,922 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:33:33,922 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 16:33:33,923 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:33:33,923 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:33:33,924 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:33:33,924 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:33:33,925 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:33:33,925 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:33:33,926 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:33:33,926 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:33:33,927 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:33:33,927 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:33:33,928 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:33:33,929 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:33:33,930 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:33:33,930 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:33:33,932 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:33:33,932 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:33:33,933 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a705cf-6b43-4f6b-9883-44df691a4cf3/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a705cf-6b43-4f6b-9883-44df691a4cf3/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ac72ff2379990464c5f55660be1e08b12557a61aceeef8401296ef66be035fc [2024-11-08 16:33:34,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:33:34,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:33:34,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:33:34,398 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:33:34,398 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:33:34,400 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a705cf-6b43-4f6b-9883-44df691a4cf3/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i Unable to find full path for "g++" [2024-11-08 16:33:36,947 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:33:37,426 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:33:37,427 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a705cf-6b43-4f6b-9883-44df691a4cf3/sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i [2024-11-08 16:33:37,448 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a705cf-6b43-4f6b-9883-44df691a4cf3/bin/uautomizer-verify-jihMAELWvX/data/2ead1feba/5fc267c10e544e9d89c0128a52ef5452/FLAG3dbfa30b2 [2024-11-08 16:33:37,471 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a705cf-6b43-4f6b-9883-44df691a4cf3/bin/uautomizer-verify-jihMAELWvX/data/2ead1feba/5fc267c10e544e9d89c0128a52ef5452 [2024-11-08 16:33:37,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:33:37,478 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:33:37,483 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:33:37,483 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:33:37,491 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:33:37,492 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:33:37" (1/1) ... [2024-11-08 16:33:37,496 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e1e878b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:33:37, skipping insertion in model container [2024-11-08 16:33:37,496 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:33:37" (1/1) ... [2024-11-08 16:33:37,592 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:33:38,349 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:33:38,372 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:33:38,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:33:38,584 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:33:38,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:33:38 WrapperNode [2024-11-08 16:33:38,585 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:33:38,587 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:33:38,587 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:33:38,587 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:33:38,597 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:33:38" (1/1) ... [2024-11-08 16:33:38,626 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:33:38" (1/1) ... [2024-11-08 16:33:38,672 INFO L138 Inliner]: procedures = 272, calls = 65, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 287 [2024-11-08 16:33:38,673 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:33:38,674 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:33:38,674 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:33:38,674 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:33:38,688 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:33:38" (1/1) ... [2024-11-08 16:33:38,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:33:38" (1/1) ... [2024-11-08 16:33:38,695 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:33:38" (1/1) ... [2024-11-08 16:33:38,696 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:33:38" (1/1) ... [2024-11-08 16:33:38,716 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:33:38" (1/1) ... [2024-11-08 16:33:38,723 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:33:38" (1/1) ... [2024-11-08 16:33:38,725 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:33:38" (1/1) ... [2024-11-08 16:33:38,728 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:33:38" (1/1) ... [2024-11-08 16:33:38,733 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:33:38,734 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:33:38,734 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:33:38,734 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:33:38,736 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:33:38" (1/1) ... [2024-11-08 16:33:38,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:33:38,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a705cf-6b43-4f6b-9883-44df691a4cf3/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:33:38,789 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a705cf-6b43-4f6b-9883-44df691a4cf3/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:33:38,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4a705cf-6b43-4f6b-9883-44df691a4cf3/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:33:38,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 16:33:38,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 16:33:38,838 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 16:33:38,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 16:33:38,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 16:33:38,839 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 16:33:38,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:33:38,839 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 16:33:38,839 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 16:33:38,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 16:33:38,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:33:38,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:33:38,843 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 16:33:39,172 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:33:39,175 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:33:40,021 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 16:33:40,021 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:33:40,073 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:33:40,073 INFO L316 CfgBuilder]: Removed 20 assume(true) statements. [2024-11-08 16:33:40,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:33:40 BoogieIcfgContainer [2024-11-08 16:33:40,074 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:33:40,077 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:33:40,077 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:33:40,082 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:33:40,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:33:37" (1/3) ... [2024-11-08 16:33:40,084 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa84074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:33:40, skipping insertion in model container [2024-11-08 16:33:40,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:33:38" (2/3) ... [2024-11-08 16:33:40,087 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa84074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:33:40, skipping insertion in model container [2024-11-08 16:33:40,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:33:40" (3/3) ... [2024-11-08 16:33:40,091 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_79-equ_racefree.i [2024-11-08 16:33:40,117 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:33:40,117 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-08 16:33:40,117 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 16:33:40,241 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-08 16:33:40,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 273 places, 301 transitions, 609 flow [2024-11-08 16:33:40,542 INFO L124 PetriNetUnfolderBase]: 46/432 cut-off events. [2024-11-08 16:33:40,543 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 16:33:40,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 437 conditions, 432 events. 46/432 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1753 event pairs, 0 based on Foata normal form. 0/364 useless extension candidates. Maximal degree in co-relation 234. Up to 8 conditions per place. [2024-11-08 16:33:40,555 INFO L82 GeneralOperation]: Start removeDead. Operand has 273 places, 301 transitions, 609 flow [2024-11-08 16:33:40,565 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 272 places, 299 transitions, 605 flow [2024-11-08 16:33:40,577 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:33:40,586 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;@71d033aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:33:40,587 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-08 16:33:40,608 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:33:40,609 INFO L124 PetriNetUnfolderBase]: 8/106 cut-off events. [2024-11-08 16:33:40,609 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:33:40,609 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:33:40,610 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:33:40,611 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-08 16:33:40,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:33:40,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1538741541, now seen corresponding path program 1 times [2024-11-08 16:33:40,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:33:40,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22098821] [2024-11-08 16:33:40,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:33:40,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:33:40,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:33:42,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:33:42,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:33:42,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22098821] [2024-11-08 16:33:42,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22098821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:33:42,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:33:42,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:33:42,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096387886] [2024-11-08 16:33:42,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:33:42,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:33:42,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:33:42,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:33:42,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:33:42,858 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 301 [2024-11-08 16:33:42,866 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 299 transitions, 605 flow. Second operand has 6 states, 6 states have (on average 200.5) internal successors, (1203), 6 states have internal predecessors, (1203), 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) [2024-11-08 16:33:42,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:33:42,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 301 [2024-11-08 16:33:42,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:33:44,562 INFO L124 PetriNetUnfolderBase]: 1375/5168 cut-off events. [2024-11-08 16:33:44,563 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-08 16:33:44,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7942 conditions, 5168 events. 1375/5168 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 45611 event pairs, 929 based on Foata normal form. 684/5393 useless extension candidates. Maximal degree in co-relation 7684. Up to 2550 conditions per place. [2024-11-08 16:33:44,604 INFO L140 encePairwiseOnDemand]: 250/301 looper letters, 107 selfloop transitions, 86 changer transitions 0/388 dead transitions. [2024-11-08 16:33:44,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 388 transitions, 1169 flow [2024-11-08 16:33:44,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:33:44,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:33:44,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1460 transitions. [2024-11-08 16:33:44,678 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8084163898117387 [2024-11-08 16:33:44,681 INFO L175 Difference]: Start difference. First operand has 272 places, 299 transitions, 605 flow. Second operand 6 states and 1460 transitions. [2024-11-08 16:33:44,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 388 transitions, 1169 flow [2024-11-08 16:33:44,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 388 transitions, 1169 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:33:44,708 INFO L231 Difference]: Finished difference. Result has 278 places, 356 transitions, 1115 flow [2024-11-08 16:33:44,711 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=549, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1115, PETRI_PLACES=278, PETRI_TRANSITIONS=356} [2024-11-08 16:33:44,718 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 6 predicate places. [2024-11-08 16:33:44,719 INFO L471 AbstractCegarLoop]: Abstraction has has 278 places, 356 transitions, 1115 flow [2024-11-08 16:33:44,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 200.5) internal successors, (1203), 6 states have internal predecessors, (1203), 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) [2024-11-08 16:33:44,720 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:33:44,721 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:33:44,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:33:44,722 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-08 16:33:44,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:33:44,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1565660568, now seen corresponding path program 1 times [2024-11-08 16:33:44,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:33:44,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973596080] [2024-11-08 16:33:44,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:33:44,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:33:44,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:33:44,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:33:44,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:33:44,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973596080] [2024-11-08 16:33:44,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973596080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:33:44,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:33:44,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:33:44,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219231360] [2024-11-08 16:33:44,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:33:44,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:33:44,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:33:44,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:33:44,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:33:44,903 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 301 [2024-11-08 16:33:44,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 356 transitions, 1115 flow. Second operand has 3 states, 3 states have (on average 252.0) internal successors, (756), 3 states have internal predecessors, (756), 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) [2024-11-08 16:33:44,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:33:44,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 301 [2024-11-08 16:33:44,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:33:45,478 INFO L124 PetriNetUnfolderBase]: 304/1991 cut-off events. [2024-11-08 16:33:45,479 INFO L125 PetriNetUnfolderBase]: For 149/165 co-relation queries the response was YES. [2024-11-08 16:33:45,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2929 conditions, 1991 events. 304/1991 cut-off events. For 149/165 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 15101 event pairs, 55 based on Foata normal form. 2/1825 useless extension candidates. Maximal degree in co-relation 2787. Up to 244 conditions per place. [2024-11-08 16:33:45,499 INFO L140 encePairwiseOnDemand]: 297/301 looper letters, 31 selfloop transitions, 3 changer transitions 0/364 dead transitions. [2024-11-08 16:33:45,499 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 364 transitions, 1199 flow [2024-11-08 16:33:45,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:33:45,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:33:45,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 785 transitions. [2024-11-08 16:33:45,503 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8693244739756367 [2024-11-08 16:33:45,504 INFO L175 Difference]: Start difference. First operand has 278 places, 356 transitions, 1115 flow. Second operand 3 states and 785 transitions. [2024-11-08 16:33:45,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 364 transitions, 1199 flow [2024-11-08 16:33:45,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 364 transitions, 1199 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:33:45,531 INFO L231 Difference]: Finished difference. Result has 281 places, 356 transitions, 1128 flow [2024-11-08 16:33:45,532 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=1115, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1128, PETRI_PLACES=281, PETRI_TRANSITIONS=356} [2024-11-08 16:33:45,533 INFO L277 CegarLoopForPetriNet]: 272 programPoint places, 9 predicate places. [2024-11-08 16:33:45,533 INFO L471 AbstractCegarLoop]: Abstraction has has 281 places, 356 transitions, 1128 flow [2024-11-08 16:33:45,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 252.0) internal successors, (756), 3 states have internal predecessors, (756), 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) [2024-11-08 16:33:45,534 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:33:45,536 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2024-11-08 16:33:45,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:33:45,537 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2024-11-08 16:33:45,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:33:45,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1446497460, now seen corresponding path program 1 times [2024-11-08 16:33:45,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:33:45,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483082057] [2024-11-08 16:33:45,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:33:45,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:33:45,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:33:45,606 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 16:33:45,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:33:45,683 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 16:33:45,684 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 16:33:45,686 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2024-11-08 16:33:45,689 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2024-11-08 16:33:45,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2024-11-08 16:33:45,691 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2024-11-08 16:33:45,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2024-11-08 16:33:45,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2024-11-08 16:33:45,693 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2024-11-08 16:33:45,694 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2024-11-08 16:33:45,694 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2024-11-08 16:33:45,696 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2024-11-08 16:33:45,696 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2024-11-08 16:33:45,696 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2024-11-08 16:33:45,697 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2024-11-08 16:33:45,697 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2024-11-08 16:33:45,697 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2024-11-08 16:33:45,697 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2024-11-08 16:33:45,699 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2024-11-08 16:33:45,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2024-11-08 16:33:45,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:33:45,701 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-08 16:33:45,707 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 16:33:45,708 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 16:33:45,799 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-08 16:33:45,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 363 places, 403 transitions, 822 flow [2024-11-08 16:33:46,021 INFO L124 PetriNetUnfolderBase]: 77/694 cut-off events. [2024-11-08 16:33:46,022 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 16:33:46,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 706 conditions, 694 events. 77/694 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3306 event pairs, 0 based on Foata normal form. 0/581 useless extension candidates. Maximal degree in co-relation 434. Up to 12 conditions per place. [2024-11-08 16:33:46,039 INFO L82 GeneralOperation]: Start removeDead. Operand has 363 places, 403 transitions, 822 flow [2024-11-08 16:33:46,054 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 362 places, 401 transitions, 818 flow [2024-11-08 16:33:46,056 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:33:46,057 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;@71d033aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:33:46,058 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-08 16:33:46,069 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:33:46,070 INFO L124 PetriNetUnfolderBase]: 8/106 cut-off events. [2024-11-08 16:33:46,070 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:33:46,070 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:33:46,070 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:33:46,071 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-08 16:33:46,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:33:46,071 INFO L85 PathProgramCache]: Analyzing trace with hash -84254610, now seen corresponding path program 1 times [2024-11-08 16:33:46,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:33:46,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452539584] [2024-11-08 16:33:46,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:33:46,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:33:46,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:33:46,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:33:46,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:33:46,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452539584] [2024-11-08 16:33:46,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452539584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:33:46,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:33:46,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:33:46,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994456738] [2024-11-08 16:33:46,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:33:46,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:33:46,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:33:46,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:33:46,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:33:47,298 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 258 out of 403 [2024-11-08 16:33:47,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 401 transitions, 818 flow. Second operand has 6 states, 6 states have (on average 259.5) internal successors, (1557), 6 states have internal predecessors, (1557), 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) [2024-11-08 16:33:47,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:33:47,301 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 258 of 403 [2024-11-08 16:33:47,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:34:25,230 INFO L124 PetriNetUnfolderBase]: 83206/199033 cut-off events. [2024-11-08 16:34:25,231 INFO L125 PetriNetUnfolderBase]: For 1096/1096 co-relation queries the response was YES. [2024-11-08 16:34:25,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324222 conditions, 199033 events. 83206/199033 cut-off events. For 1096/1096 co-relation queries the response was YES. Maximal size of possible extension queue 3679. Compared 2642050 event pairs, 64280 based on Foata normal form. 34496/219481 useless extension candidates. Maximal degree in co-relation 297391. Up to 117070 conditions per place. [2024-11-08 16:34:26,734 INFO L140 encePairwiseOnDemand]: 320/403 looper letters, 170 selfloop transitions, 166 changer transitions 0/589 dead transitions. [2024-11-08 16:34:26,734 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 589 transitions, 1871 flow [2024-11-08 16:34:26,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:34:26,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:34:26,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2017 transitions. [2024-11-08 16:34:26,743 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8341604631927213 [2024-11-08 16:34:26,743 INFO L175 Difference]: Start difference. First operand has 362 places, 401 transitions, 818 flow. Second operand 6 states and 2017 transitions. [2024-11-08 16:34:26,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 589 transitions, 1871 flow [2024-11-08 16:34:26,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 589 transitions, 1871 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:34:26,912 INFO L231 Difference]: Finished difference. Result has 366 places, 524 transitions, 1820 flow [2024-11-08 16:34:26,913 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=403, PETRI_DIFFERENCE_MINUEND_FLOW=734, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1820, PETRI_PLACES=366, PETRI_TRANSITIONS=524} [2024-11-08 16:34:26,914 INFO L277 CegarLoopForPetriNet]: 362 programPoint places, 4 predicate places. [2024-11-08 16:34:26,914 INFO L471 AbstractCegarLoop]: Abstraction has has 366 places, 524 transitions, 1820 flow [2024-11-08 16:34:26,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 259.5) internal successors, (1557), 6 states have internal predecessors, (1557), 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) [2024-11-08 16:34:26,920 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:34:26,920 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:34:26,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:34:26,921 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-08 16:34:26,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:34:26,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1047919224, now seen corresponding path program 1 times [2024-11-08 16:34:26,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:34:26,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486161484] [2024-11-08 16:34:26,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:34:26,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:34:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:34:27,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:34:27,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:34:27,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486161484] [2024-11-08 16:34:27,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486161484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:34:27,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:34:27,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:34:27,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326487968] [2024-11-08 16:34:27,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:34:27,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:34:27,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:34:27,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:34:27,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:34:27,088 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 329 out of 403 [2024-11-08 16:34:27,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 524 transitions, 1820 flow. Second operand has 3 states, 3 states have (on average 331.0) internal successors, (993), 3 states have internal predecessors, (993), 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) [2024-11-08 16:34:27,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:34:27,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 329 of 403 [2024-11-08 16:34:27,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand