./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_01-simple_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff 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_68bc4bd0-4afe-4509-8077-829d3887f3cd/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68bc4bd0-4afe-4509-8077-829d3887f3cd/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68bc4bd0-4afe-4509-8077-829d3887f3cd/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68bc4bd0-4afe-4509-8077-829d3887f3cd/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_01-simple_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68bc4bd0-4afe-4509-8077-829d3887f3cd/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68bc4bd0-4afe-4509-8077-829d3887f3cd/bin/uautomizer-verify-uCwYo4JHxu --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 e4f1df14aa697a6b5c77ee19ecaf0110c602a30de6eaa386be3f2cf188498154 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:03:46,724 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:03:46,849 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68bc4bd0-4afe-4509-8077-829d3887f3cd/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 08:03:46,856 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:03:46,857 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:03:46,894 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:03:46,895 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:03:46,896 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:03:46,897 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:03:46,902 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:03:46,903 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:03:46,904 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:03:46,904 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:03:46,906 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:03:46,907 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:03:46,907 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:03:46,908 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:03:46,908 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:03:46,908 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:03:46,909 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:03:46,909 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:03:46,910 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:03:46,911 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 08:03:46,912 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:03:46,913 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:03:46,913 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:03:46,914 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:03:46,914 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:03:46,915 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:03:46,915 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:03:46,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:03:46,917 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:03:46,917 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:03:46,918 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:03:46,918 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:03:46,918 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:03:46,918 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:03:46,919 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:03:46,919 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:03:46,919 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:03:46,919 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:03:46,920 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_68bc4bd0-4afe-4509-8077-829d3887f3cd/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68bc4bd0-4afe-4509-8077-829d3887f3cd/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4f1df14aa697a6b5c77ee19ecaf0110c602a30de6eaa386be3f2cf188498154 [2023-11-19 08:03:47,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:03:47,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:03:47,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:03:47,204 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:03:47,205 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:03:47,207 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68bc4bd0-4afe-4509-8077-829d3887f3cd/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/goblint-regression/04-mutex_01-simple_rc.i [2023-11-19 08:03:50,338 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:03:50,694 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:03:50,695 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68bc4bd0-4afe-4509-8077-829d3887f3cd/sv-benchmarks/c/goblint-regression/04-mutex_01-simple_rc.i [2023-11-19 08:03:50,714 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68bc4bd0-4afe-4509-8077-829d3887f3cd/bin/uautomizer-verify-uCwYo4JHxu/data/b16209e81/1bf02cc064824d28a3bb60fe555da077/FLAG9c887be6d [2023-11-19 08:03:50,729 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68bc4bd0-4afe-4509-8077-829d3887f3cd/bin/uautomizer-verify-uCwYo4JHxu/data/b16209e81/1bf02cc064824d28a3bb60fe555da077 [2023-11-19 08:03:50,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:03:50,734 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:03:50,735 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:03:50,736 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:03:50,741 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:03:50,742 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:50" (1/1) ... [2023-11-19 08:03:50,744 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e688cc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:50, skipping insertion in model container [2023-11-19 08:03:50,744 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:50" (1/1) ... [2023-11-19 08:03:50,800 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:03:51,282 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:03:51,299 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:03:51,348 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:03:51,426 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:03:51,427 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:51 WrapperNode [2023-11-19 08:03:51,427 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:03:51,428 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:03:51,428 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:03:51,429 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:03:51,438 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:51" (1/1) ... [2023-11-19 08:03:51,471 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:51" (1/1) ... [2023-11-19 08:03:51,515 INFO L138 Inliner]: procedures = 262, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 50 [2023-11-19 08:03:51,516 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:03:51,516 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:03:51,517 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:03:51,518 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:03:51,527 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:51" (1/1) ... [2023-11-19 08:03:51,527 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:51" (1/1) ... [2023-11-19 08:03:51,540 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:51" (1/1) ... [2023-11-19 08:03:51,540 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:51" (1/1) ... [2023-11-19 08:03:51,547 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:51" (1/1) ... [2023-11-19 08:03:51,558 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:51" (1/1) ... [2023-11-19 08:03:51,565 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:51" (1/1) ... [2023-11-19 08:03:51,575 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:51" (1/1) ... [2023-11-19 08:03:51,577 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:03:51,579 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:03:51,586 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:03:51,586 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:03:51,587 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:51" (1/1) ... [2023-11-19 08:03:51,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:03:51,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68bc4bd0-4afe-4509-8077-829d3887f3cd/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:03:51,626 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68bc4bd0-4afe-4509-8077-829d3887f3cd/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:03:51,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68bc4bd0-4afe-4509-8077-829d3887f3cd/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:03:51,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:03:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:03:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 08:03:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:03:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 08:03:51,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:03:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-19 08:03:51,672 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-19 08:03:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:03:51,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:03:51,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:03:51,674 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 08:03:51,877 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:03:51,880 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:03:52,130 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:03:52,140 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:03:52,140 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 08:03:52,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:52 BoogieIcfgContainer [2023-11-19 08:03:52,145 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:03:52,149 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:03:52,150 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:03:52,154 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:03:52,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:03:50" (1/3) ... [2023-11-19 08:03:52,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c7f3731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:03:52, skipping insertion in model container [2023-11-19 08:03:52,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:51" (2/3) ... [2023-11-19 08:03:52,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c7f3731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:03:52, skipping insertion in model container [2023-11-19 08:03:52,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:52" (3/3) ... [2023-11-19 08:03:52,161 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_01-simple_rc.i [2023-11-19 08:03:52,171 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 08:03:52,183 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:03:52,202 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-11-19 08:03:52,203 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 08:03:52,280 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-19 08:03:52,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 69 transitions, 145 flow [2023-11-19 08:03:52,366 INFO L124 PetriNetUnfolderBase]: 0/68 cut-off events. [2023-11-19 08:03:52,367 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 08:03:52,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 68 events. 0/68 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-11-19 08:03:52,371 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 69 transitions, 145 flow [2023-11-19 08:03:52,375 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 60 transitions, 123 flow [2023-11-19 08:03:52,379 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 08:03:52,395 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 60 transitions, 123 flow [2023-11-19 08:03:52,405 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 60 transitions, 123 flow [2023-11-19 08:03:52,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 60 transitions, 123 flow [2023-11-19 08:03:52,433 INFO L124 PetriNetUnfolderBase]: 0/60 cut-off events. [2023-11-19 08:03:52,433 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:03:52,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 60 events. 0/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-19 08:03:52,435 INFO L119 LiptonReduction]: Number of co-enabled transitions 630 [2023-11-19 08:03:55,050 INFO L134 LiptonReduction]: Checked pairs total: 2495 [2023-11-19 08:03:55,050 INFO L136 LiptonReduction]: Total number of compositions: 41 [2023-11-19 08:03:55,067 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:03:55,074 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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;@58c2d335, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:03:55,074 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-19 08:03:55,078 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 08:03:55,079 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-19 08:03:55,079 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:03:55,079 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:55,080 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 08:03:55,080 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 08:03:55,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:55,086 INFO L85 PathProgramCache]: Analyzing trace with hash 214393724, now seen corresponding path program 1 times [2023-11-19 08:03:55,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:55,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526558267] [2023-11-19 08:03:55,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:55,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:55,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:55,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:55,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:55,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526558267] [2023-11-19 08:03:55,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526558267] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:55,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:55,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:03:55,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983736257] [2023-11-19 08:03:55,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:55,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:03:55,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:55,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:03:55,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:03:55,455 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 110 [2023-11-19 08:03:55,458 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 21 transitions, 45 flow. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:55,458 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:55,458 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 110 [2023-11-19 08:03:55,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:55,576 INFO L124 PetriNetUnfolderBase]: 48/137 cut-off events. [2023-11-19 08:03:55,576 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:03:55,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 137 events. 48/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 549 event pairs, 22 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 249. Up to 71 conditions per place. [2023-11-19 08:03:55,582 INFO L140 encePairwiseOnDemand]: 101/110 looper letters, 22 selfloop transitions, 6 changer transitions 0/32 dead transitions. [2023-11-19 08:03:55,582 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 32 transitions, 123 flow [2023-11-19 08:03:55,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:03:55,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:03:55,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 209 transitions. [2023-11-19 08:03:55,604 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2023-11-19 08:03:55,605 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 209 transitions. [2023-11-19 08:03:55,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 209 transitions. [2023-11-19 08:03:55,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:55,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 209 transitions. [2023-11-19 08:03:55,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2023-11-19 08:03:55,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:55,619 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:55,621 INFO L175 Difference]: Start difference. First operand has 25 places, 21 transitions, 45 flow. Second operand 3 states and 209 transitions. [2023-11-19 08:03:55,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 32 transitions, 123 flow [2023-11-19 08:03:55,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 32 transitions, 122 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:03:55,626 INFO L231 Difference]: Finished difference. Result has 27 places, 26 transitions, 94 flow [2023-11-19 08:03:55,629 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=27, PETRI_TRANSITIONS=26} [2023-11-19 08:03:55,633 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 2 predicate places. [2023-11-19 08:03:55,633 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 26 transitions, 94 flow [2023-11-19 08:03:55,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:55,634 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:55,634 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:55,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:03:55,634 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 08:03:55,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:55,635 INFO L85 PathProgramCache]: Analyzing trace with hash 759834693, now seen corresponding path program 1 times [2023-11-19 08:03:55,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:55,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569850469] [2023-11-19 08:03:55,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:55,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:55,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:55,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:55,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:55,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569850469] [2023-11-19 08:03:55,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569850469] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:55,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:55,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:03:55,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526150595] [2023-11-19 08:03:55,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:55,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:03:55,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:55,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:03:55,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:03:55,758 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 110 [2023-11-19 08:03:55,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 26 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:55,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:55,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 110 [2023-11-19 08:03:55,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:55,814 INFO L124 PetriNetUnfolderBase]: 41/126 cut-off events. [2023-11-19 08:03:55,814 INFO L125 PetriNetUnfolderBase]: For 78/83 co-relation queries the response was YES. [2023-11-19 08:03:55,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 126 events. 41/126 cut-off events. For 78/83 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 492 event pairs, 21 based on Foata normal form. 1/119 useless extension candidates. Maximal degree in co-relation 300. Up to 83 conditions per place. [2023-11-19 08:03:55,817 INFO L140 encePairwiseOnDemand]: 105/110 looper letters, 16 selfloop transitions, 6 changer transitions 2/33 dead transitions. [2023-11-19 08:03:55,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 33 transitions, 166 flow [2023-11-19 08:03:55,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:03:55,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:03:55,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 191 transitions. [2023-11-19 08:03:55,820 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5787878787878787 [2023-11-19 08:03:55,820 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 191 transitions. [2023-11-19 08:03:55,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 191 transitions. [2023-11-19 08:03:55,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:55,821 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 191 transitions. [2023-11-19 08:03:55,822 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:55,823 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:55,824 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:55,824 INFO L175 Difference]: Start difference. First operand has 27 places, 26 transitions, 94 flow. Second operand 3 states and 191 transitions. [2023-11-19 08:03:55,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 33 transitions, 166 flow [2023-11-19 08:03:55,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 33 transitions, 150 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 08:03:55,827 INFO L231 Difference]: Finished difference. Result has 28 places, 30 transitions, 124 flow [2023-11-19 08:03:55,828 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=124, PETRI_PLACES=28, PETRI_TRANSITIONS=30} [2023-11-19 08:03:55,829 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 3 predicate places. [2023-11-19 08:03:55,829 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 30 transitions, 124 flow [2023-11-19 08:03:55,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:55,829 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:55,830 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:55,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:03:55,830 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 08:03:55,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:55,831 INFO L85 PathProgramCache]: Analyzing trace with hash 387236124, now seen corresponding path program 1 times [2023-11-19 08:03:55,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:55,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107814277] [2023-11-19 08:03:55,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:55,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:03:55,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:03:55,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:03:55,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107814277] [2023-11-19 08:03:55,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107814277] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:03:55,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:03:55,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:03:55,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690137059] [2023-11-19 08:03:55,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:03:55,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:03:55,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:03:55,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:03:55,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:03:55,917 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 110 [2023-11-19 08:03:55,918 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 30 transitions, 124 flow. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:55,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:03:55,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 110 [2023-11-19 08:03:55,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:03:55,967 INFO L124 PetriNetUnfolderBase]: 45/132 cut-off events. [2023-11-19 08:03:55,967 INFO L125 PetriNetUnfolderBase]: For 139/148 co-relation queries the response was YES. [2023-11-19 08:03:55,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 357 conditions, 132 events. 45/132 cut-off events. For 139/148 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 524 event pairs, 19 based on Foata normal form. 2/123 useless extension candidates. Maximal degree in co-relation 346. Up to 86 conditions per place. [2023-11-19 08:03:55,969 INFO L140 encePairwiseOnDemand]: 105/110 looper letters, 15 selfloop transitions, 7 changer transitions 6/37 dead transitions. [2023-11-19 08:03:55,969 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 37 transitions, 208 flow [2023-11-19 08:03:55,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:03:55,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:03:55,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2023-11-19 08:03:55,971 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5969696969696969 [2023-11-19 08:03:55,971 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 197 transitions. [2023-11-19 08:03:55,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 197 transitions. [2023-11-19 08:03:55,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:03:55,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 197 transitions. [2023-11-19 08:03:55,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:55,977 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:55,979 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:55,980 INFO L175 Difference]: Start difference. First operand has 28 places, 30 transitions, 124 flow. Second operand 3 states and 197 transitions. [2023-11-19 08:03:55,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 37 transitions, 208 flow [2023-11-19 08:03:55,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 37 transitions, 200 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:03:55,985 INFO L231 Difference]: Finished difference. Result has 30 places, 30 transitions, 145 flow [2023-11-19 08:03:55,986 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=145, PETRI_PLACES=30, PETRI_TRANSITIONS=30} [2023-11-19 08:03:55,987 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 5 predicate places. [2023-11-19 08:03:55,988 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 30 transitions, 145 flow [2023-11-19 08:03:55,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:03:55,990 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:03:55,991 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:03:55,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:03:55,991 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-19 08:03:55,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:03:55,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1236595138, now seen corresponding path program 1 times [2023-11-19 08:03:55,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:03:55,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248361122] [2023-11-19 08:03:55,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:03:55,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:03:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:03:56,048 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:03:56,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:03:56,083 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:03:56,088 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 08:03:56,089 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2023-11-19 08:03:56,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2023-11-19 08:03:56,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2023-11-19 08:03:56,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2023-11-19 08:03:56,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2023-11-19 08:03:56,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2023-11-19 08:03:56,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2023-11-19 08:03:56,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2023-11-19 08:03:56,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 08:03:56,096 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-19 08:03:56,107 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 08:03:56,107 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 08:03:56,134 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre32 could not be translated [2023-11-19 08:03:56,135 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet30 could not be translated [2023-11-19 08:03:56,136 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet35 could not be translated [2023-11-19 08:03:56,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:03:56 BasicIcfg [2023-11-19 08:03:56,153 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 08:03:56,154 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:03:56,154 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:03:56,155 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:03:56,155 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:52" (3/4) ... [2023-11-19 08:03:56,157 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 08:03:56,159 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:03:56,161 INFO L158 Benchmark]: Toolchain (without parser) took 5425.53ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 114.7MB in the beginning and 106.9MB in the end (delta: 7.8MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. [2023-11-19 08:03:56,161 INFO L158 Benchmark]: CDTParser took 0.76ms. Allocated memory is still 109.1MB. Free memory is still 61.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:03:56,162 INFO L158 Benchmark]: CACSL2BoogieTranslator took 691.91ms. Allocated memory is still 155.2MB. Free memory was 114.3MB in the beginning and 87.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-19 08:03:56,163 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.57ms. Allocated memory is still 155.2MB. Free memory was 87.0MB in the beginning and 84.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:03:56,163 INFO L158 Benchmark]: Boogie Preprocessor took 61.46ms. Allocated memory is still 155.2MB. Free memory was 84.4MB in the beginning and 83.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:03:56,167 INFO L158 Benchmark]: RCFGBuilder took 567.01ms. Allocated memory is still 155.2MB. Free memory was 82.8MB in the beginning and 69.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 08:03:56,173 INFO L158 Benchmark]: TraceAbstraction took 4005.00ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 69.1MB in the beginning and 108.0MB in the end (delta: -38.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:03:56,173 INFO L158 Benchmark]: Witness Printer took 4.59ms. Allocated memory is still 186.6MB. Free memory was 108.0MB in the beginning and 106.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:03:56,175 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76ms. Allocated memory is still 109.1MB. Free memory is still 61.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 691.91ms. Allocated memory is still 155.2MB. Free memory was 114.3MB in the beginning and 87.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.57ms. Allocated memory is still 155.2MB. Free memory was 87.0MB in the beginning and 84.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.46ms. Allocated memory is still 155.2MB. Free memory was 84.4MB in the beginning and 83.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 567.01ms. Allocated memory is still 155.2MB. Free memory was 82.8MB in the beginning and 69.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4005.00ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 69.1MB in the beginning and 108.0MB in the end (delta: -38.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.59ms. Allocated memory is still 186.6MB. Free memory was 108.0MB in the beginning and 106.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre32 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet30 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet35 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.6s, 64 PlacesBefore, 25 PlacesAfterwards, 60 TransitionsBefore, 21 TransitionsAfterwards, 630 CoEnabledTransitionPairs, 6 FixpointIterations, 22 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 41 TotalNumberOfCompositions, 2495 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 794, independent: 581, independent conditional: 0, independent unconditional: 581, dependent: 213, dependent conditional: 0, dependent unconditional: 213, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 300, independent: 272, independent conditional: 0, independent unconditional: 272, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 794, independent: 309, independent conditional: 0, independent unconditional: 309, dependent: 185, dependent conditional: 0, dependent unconditional: 185, unknown: 300, unknown conditional: 0, unknown unconditional: 300] , Statistics on independence cache: Total cache size (in pairs): 49, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 922]: Data race detected [2023-11-19 08:03:56,190 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre32 could not be translated [2023-11-19 08:03:56,190 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet30 could not be translated [2023-11-19 08:03:56,191 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet35 could not be translated [2023-11-19 08:03:56,198 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre32 could not be translated [2023-11-19 08:03:56,198 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet30 could not be translated [2023-11-19 08:03:56,199 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet35 could not be translated Data race detected The following path leads to a data race: [L917] 0 int myglobal; [L918] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L919] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L927] 0 pthread_t id; [L928] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L930] EXPR 0 myglobal+1 VAL [arg={0:0}, arg={0:0}, id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L922] 1 myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L930] 0 myglobal=myglobal+1 VAL [arg={0:0}, arg={0:0}, id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=1] [L922] 1 myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, myglobal=1] Now there is a data race on ~myglobal~0 between C: myglobal=myglobal+1 [930] and C: myglobal+1 [922] - UnprovableResult [Line: 930]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 930]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 928]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 922]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 87 locations, 8 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: 3.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 96 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 141 IncrementalHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 19 mSDtfsCounter, 141 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=145occurred in iteration=3, 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, 0.2s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-19 08:03:56,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68bc4bd0-4afe-4509-8077-829d3887f3cd/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE