./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_24-sound_lock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eacfe1-1fde-42c5-a031-4a5d722ec630/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eacfe1-1fde-42c5-a031-4a5d722ec630/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eacfe1-1fde-42c5-a031-4a5d722ec630/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eacfe1-1fde-42c5-a031-4a5d722ec630/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_24-sound_lock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eacfe1-1fde-42c5-a031-4a5d722ec630/bin/uautomizer-DrprNOufMa/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eacfe1-1fde-42c5-a031-4a5d722ec630/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --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 120b8e17ecc05129f7277c5998da40ba955c11083c7096c2093845469caad913 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 18:55:39,175 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 18:55:39,177 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 18:55:39,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 18:55:39,201 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 18:55:39,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 18:55:39,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 18:55:39,204 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 18:55:39,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 18:55:39,207 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 18:55:39,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 18:55:39,208 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 18:55:39,209 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 18:55:39,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 18:55:39,211 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 18:55:39,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 18:55:39,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 18:55:39,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 18:55:39,215 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 18:55:39,217 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 18:55:39,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 18:55:39,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 18:55:39,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 18:55:39,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 18:55:39,224 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 18:55:39,225 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 18:55:39,225 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 18:55:39,226 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 18:55:39,226 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 18:55:39,227 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 18:55:39,227 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 18:55:39,228 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 18:55:39,228 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 18:55:39,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 18:55:39,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 18:55:39,230 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 18:55:39,230 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 18:55:39,230 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 18:55:39,231 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 18:55:39,231 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 18:55:39,232 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 18:55:39,232 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eacfe1-1fde-42c5-a031-4a5d722ec630/bin/uautomizer-DrprNOufMa/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-12-06 18:55:39,248 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 18:55:39,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 18:55:39,249 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 18:55:39,249 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 18:55:39,250 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 18:55:39,250 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 18:55:39,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 18:55:39,250 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 18:55:39,250 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 18:55:39,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 18:55:39,251 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 18:55:39,251 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 18:55:39,251 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 18:55:39,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 18:55:39,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 18:55:39,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 18:55:39,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 18:55:39,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 18:55:39,252 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-12-06 18:55:39,252 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 18:55:39,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 18:55:39,252 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 18:55:39,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 18:55:39,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 18:55:39,252 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 18:55:39,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 18:55:39,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:55:39,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 18:55:39,253 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 18:55:39,253 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 18:55:39,253 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 18:55:39,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 18:55:39,253 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 18:55:39,254 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 18:55:39,254 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 18:55:39,254 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 18:55:39,254 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_51eacfe1-1fde-42c5-a031-4a5d722ec630/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eacfe1-1fde-42c5-a031-4a5d722ec630/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 120b8e17ecc05129f7277c5998da40ba955c11083c7096c2093845469caad913 [2021-12-06 18:55:39,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 18:55:39,454 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 18:55:39,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 18:55:39,456 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 18:55:39,457 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 18:55:39,458 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eacfe1-1fde-42c5-a031-4a5d722ec630/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/goblint-regression/04-mutex_24-sound_lock.i [2021-12-06 18:55:39,505 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eacfe1-1fde-42c5-a031-4a5d722ec630/bin/uautomizer-DrprNOufMa/data/61962f1d1/077d0af148d348f7a84f02567c66e86e/FLAGba648fa20 [2021-12-06 18:55:39,943 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 18:55:39,943 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eacfe1-1fde-42c5-a031-4a5d722ec630/sv-benchmarks/c/goblint-regression/04-mutex_24-sound_lock.i [2021-12-06 18:55:39,958 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eacfe1-1fde-42c5-a031-4a5d722ec630/bin/uautomizer-DrprNOufMa/data/61962f1d1/077d0af148d348f7a84f02567c66e86e/FLAGba648fa20 [2021-12-06 18:55:39,971 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eacfe1-1fde-42c5-a031-4a5d722ec630/bin/uautomizer-DrprNOufMa/data/61962f1d1/077d0af148d348f7a84f02567c66e86e [2021-12-06 18:55:39,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 18:55:39,974 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 18:55:39,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 18:55:39,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 18:55:39,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 18:55:39,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:55:39" (1/1) ... [2021-12-06 18:55:39,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5527a8ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:55:39, skipping insertion in model container [2021-12-06 18:55:39,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:55:39" (1/1) ... [2021-12-06 18:55:39,984 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 18:55:40,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 18:55:40,363 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:55:40,375 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 18:55:40,414 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 18:55:40,456 INFO L208 MainTranslator]: Completed translation [2021-12-06 18:55:40,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:55:40 WrapperNode [2021-12-06 18:55:40,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 18:55:40,458 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 18:55:40,458 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 18:55:40,458 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 18:55:40,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:55:40" (1/1) ... [2021-12-06 18:55:40,481 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:55:40" (1/1) ... [2021-12-06 18:55:40,503 INFO L137 Inliner]: procedures = 263, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57 [2021-12-06 18:55:40,503 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 18:55:40,504 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 18:55:40,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 18:55:40,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 18:55:40,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:55:40" (1/1) ... [2021-12-06 18:55:40,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:55:40" (1/1) ... [2021-12-06 18:55:40,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:55:40" (1/1) ... [2021-12-06 18:55:40,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:55:40" (1/1) ... [2021-12-06 18:55:40,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:55:40" (1/1) ... [2021-12-06 18:55:40,524 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:55:40" (1/1) ... [2021-12-06 18:55:40,526 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:55:40" (1/1) ... [2021-12-06 18:55:40,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 18:55:40,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 18:55:40,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 18:55:40,530 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 18:55:40,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:55:40" (1/1) ... [2021-12-06 18:55:40,538 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 18:55:40,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eacfe1-1fde-42c5-a031-4a5d722ec630/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 18:55:40,558 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eacfe1-1fde-42c5-a031-4a5d722ec630/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 18:55:40,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eacfe1-1fde-42c5-a031-4a5d722ec630/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 18:55:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 18:55:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 18:55:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 18:55:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 18:55:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-12-06 18:55:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 18:55:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-12-06 18:55:40,595 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-12-06 18:55:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 18:55:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 18:55:40,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 18:55:40,597 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-06 18:55:40,687 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 18:55:40,689 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 18:55:40,831 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 18:55:40,836 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 18:55:40,837 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 18:55:40,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:55:40 BoogieIcfgContainer [2021-12-06 18:55:40,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 18:55:40,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 18:55:40,840 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 18:55:40,842 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 18:55:40,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 06:55:39" (1/3) ... [2021-12-06 18:55:40,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6730e04f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:55:40, skipping insertion in model container [2021-12-06 18:55:40,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:55:40" (2/3) ... [2021-12-06 18:55:40,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6730e04f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:55:40, skipping insertion in model container [2021-12-06 18:55:40,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:55:40" (3/3) ... [2021-12-06 18:55:40,844 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_24-sound_lock.i [2021-12-06 18:55:40,848 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-06 18:55:40,848 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 18:55:40,848 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2021-12-06 18:55:40,848 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-06 18:55:40,869 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:55:40,869 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:55:40,869 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:55:40,870 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:55:40,870 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:55:40,870 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:55:40,870 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:55:40,870 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:55:40,871 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:55:40,871 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:55:40,871 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:55:40,871 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:55:40,872 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:55:40,872 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:55:40,872 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:55:40,873 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:55:40,873 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:55:40,873 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:55:40,873 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:55:40,873 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:55:40,874 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:55:40,874 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:55:40,874 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:55:40,874 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:55:40,874 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:55:40,875 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:55:40,879 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:55:40,879 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:55:40,879 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:55:40,879 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:55:40,879 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:55:40,880 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-06 18:55:40,884 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-12-06 18:55:40,920 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 18:55:40,925 INFO L339 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=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 18:55:40,925 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-12-06 18:55:40,934 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 80 transitions, 168 flow [2021-12-06 18:55:40,964 INFO L129 PetriNetUnfolder]: 1/79 cut-off events. [2021-12-06 18:55:40,964 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 18:55:40,966 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 79 events. 1/79 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 41 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 34. Up to 2 conditions per place. [2021-12-06 18:55:40,966 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 80 transitions, 168 flow [2021-12-06 18:55:40,969 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 71 transitions, 145 flow [2021-12-06 18:55:40,978 INFO L129 PetriNetUnfolder]: 1/43 cut-off events. [2021-12-06 18:55:40,978 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-12-06 18:55:40,978 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:55:40,978 INFO L254 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] [2021-12-06 18:55:40,979 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:55:40,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:55:40,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1636369980, now seen corresponding path program 1 times [2021-12-06 18:55:40,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:55:40,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022895355] [2021-12-06 18:55:40,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:55:40,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:55:41,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:41,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:55:41,159 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:55:41,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022895355] [2021-12-06 18:55:41,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022895355] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:55:41,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:55:41,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 18:55:41,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480038209] [2021-12-06 18:55:41,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:55:41,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:55:41,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:55:41,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:55:41,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:55:41,192 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 80 [2021-12-06 18:55:41,195 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 71 transitions, 145 flow. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2021-12-06 18:55:41,195 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:55:41,195 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 80 [2021-12-06 18:55:41,196 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:55:41,262 INFO L129 PetriNetUnfolder]: 38/222 cut-off events. [2021-12-06 18:55:41,262 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-12-06 18:55:41,263 INFO L84 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 222 events. 38/222 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 856 event pairs, 12 based on Foata normal form. 0/191 useless extension candidates. Maximal degree in co-relation 277. Up to 54 conditions per place. [2021-12-06 18:55:41,266 INFO L132 encePairwiseOnDemand]: 72/80 looper letters, 17 selfloop transitions, 6 changer transitions 0/81 dead transitions. [2021-12-06 18:55:41,266 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 81 transitions, 211 flow [2021-12-06 18:55:41,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:55:41,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 18:55:41,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 223 transitions. [2021-12-06 18:55:41,277 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9291666666666667 [2021-12-06 18:55:41,277 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 223 transitions. [2021-12-06 18:55:41,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 223 transitions. [2021-12-06 18:55:41,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:55:41,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 223 transitions. [2021-12-06 18:55:41,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 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) [2021-12-06 18:55:41,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2021-12-06 18:55:41,287 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2021-12-06 18:55:41,289 INFO L186 Difference]: Start difference. First operand has 74 places, 71 transitions, 145 flow. Second operand 3 states and 223 transitions. [2021-12-06 18:55:41,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 81 transitions, 211 flow [2021-12-06 18:55:41,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 81 transitions, 210 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-12-06 18:55:41,295 INFO L242 Difference]: Finished difference. Result has 77 places, 77 transitions, 196 flow [2021-12-06 18:55:41,296 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=77, PETRI_TRANSITIONS=77} [2021-12-06 18:55:41,300 INFO L334 CegarLoopForPetriNet]: 74 programPoint places, 3 predicate places. [2021-12-06 18:55:41,300 INFO L470 AbstractCegarLoop]: Abstraction has has 77 places, 77 transitions, 196 flow [2021-12-06 18:55:41,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2021-12-06 18:55:41,300 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:55:41,300 INFO L254 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] [2021-12-06 18:55:41,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 18:55:41,301 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:55:41,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:55:41,302 INFO L85 PathProgramCache]: Analyzing trace with hash -851345857, now seen corresponding path program 1 times [2021-12-06 18:55:41,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:55:41,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956652468] [2021-12-06 18:55:41,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:55:41,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:55:41,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:41,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:55:41,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:55:41,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956652468] [2021-12-06 18:55:41,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956652468] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:55:41,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:55:41,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 18:55:41,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662084429] [2021-12-06 18:55:41,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:55:41,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:55:41,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:55:41,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:55:41,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:55:41,360 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 80 [2021-12-06 18:55:41,360 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 77 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2021-12-06 18:55:41,361 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:55:41,361 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 80 [2021-12-06 18:55:41,361 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:55:41,422 INFO L129 PetriNetUnfolder]: 56/296 cut-off events. [2021-12-06 18:55:41,422 INFO L130 PetriNetUnfolder]: For 85/89 co-relation queries the response was YES. [2021-12-06 18:55:41,423 INFO L84 FinitePrefix]: Finished finitePrefix Result has 526 conditions, 296 events. 56/296 cut-off events. For 85/89 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1383 event pairs, 20 based on Foata normal form. 2/267 useless extension candidates. Maximal degree in co-relation 484. Up to 102 conditions per place. [2021-12-06 18:55:41,425 INFO L132 encePairwiseOnDemand]: 74/80 looper letters, 24 selfloop transitions, 7 changer transitions 0/87 dead transitions. [2021-12-06 18:55:41,425 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 87 transitions, 296 flow [2021-12-06 18:55:41,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:55:41,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 18:55:41,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 216 transitions. [2021-12-06 18:55:41,427 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9 [2021-12-06 18:55:41,428 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 216 transitions. [2021-12-06 18:55:41,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 216 transitions. [2021-12-06 18:55:41,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:55:41,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 216 transitions. [2021-12-06 18:55:41,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 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) [2021-12-06 18:55:41,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2021-12-06 18:55:41,431 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2021-12-06 18:55:41,431 INFO L186 Difference]: Start difference. First operand has 77 places, 77 transitions, 196 flow. Second operand 3 states and 216 transitions. [2021-12-06 18:55:41,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 87 transitions, 296 flow [2021-12-06 18:55:41,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 87 transitions, 278 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 18:55:41,435 INFO L242 Difference]: Finished difference. Result has 79 places, 82 transitions, 240 flow [2021-12-06 18:55:41,435 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=240, PETRI_PLACES=79, PETRI_TRANSITIONS=82} [2021-12-06 18:55:41,436 INFO L334 CegarLoopForPetriNet]: 74 programPoint places, 5 predicate places. [2021-12-06 18:55:41,436 INFO L470 AbstractCegarLoop]: Abstraction has has 79 places, 82 transitions, 240 flow [2021-12-06 18:55:41,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2021-12-06 18:55:41,437 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:55:41,437 INFO L254 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] [2021-12-06 18:55:41,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 18:55:41,437 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:55:41,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:55:41,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1835007955, now seen corresponding path program 1 times [2021-12-06 18:55:41,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:55:41,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894670094] [2021-12-06 18:55:41,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:55:41,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:55:41,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:41,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:55:41,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:55:41,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894670094] [2021-12-06 18:55:41,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894670094] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:55:41,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:55:41,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 18:55:41,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153579933] [2021-12-06 18:55:41,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:55:41,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 18:55:41,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:55:41,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 18:55:41,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 18:55:41,484 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 80 [2021-12-06 18:55:41,484 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 82 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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) [2021-12-06 18:55:41,484 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:55:41,484 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 80 [2021-12-06 18:55:41,484 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:55:41,543 INFO L129 PetriNetUnfolder]: 58/278 cut-off events. [2021-12-06 18:55:41,543 INFO L130 PetriNetUnfolder]: For 130/132 co-relation queries the response was YES. [2021-12-06 18:55:41,544 INFO L84 FinitePrefix]: Finished finitePrefix Result has 589 conditions, 278 events. 58/278 cut-off events. For 130/132 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1241 event pairs, 17 based on Foata normal form. 0/261 useless extension candidates. Maximal degree in co-relation 545. Up to 101 conditions per place. [2021-12-06 18:55:41,546 INFO L132 encePairwiseOnDemand]: 74/80 looper letters, 28 selfloop transitions, 9 changer transitions 0/93 dead transitions. [2021-12-06 18:55:41,546 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 93 transitions, 364 flow [2021-12-06 18:55:41,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 18:55:41,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-12-06 18:55:41,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 214 transitions. [2021-12-06 18:55:41,548 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8916666666666667 [2021-12-06 18:55:41,548 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 214 transitions. [2021-12-06 18:55:41,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 214 transitions. [2021-12-06 18:55:41,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:55:41,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 214 transitions. [2021-12-06 18:55:41,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 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) [2021-12-06 18:55:41,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2021-12-06 18:55:41,551 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2021-12-06 18:55:41,551 INFO L186 Difference]: Start difference. First operand has 79 places, 82 transitions, 240 flow. Second operand 3 states and 214 transitions. [2021-12-06 18:55:41,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 93 transitions, 364 flow [2021-12-06 18:55:41,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 93 transitions, 344 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 18:55:41,555 INFO L242 Difference]: Finished difference. Result has 81 places, 87 transitions, 294 flow [2021-12-06 18:55:41,555 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=294, PETRI_PLACES=81, PETRI_TRANSITIONS=87} [2021-12-06 18:55:41,556 INFO L334 CegarLoopForPetriNet]: 74 programPoint places, 7 predicate places. [2021-12-06 18:55:41,556 INFO L470 AbstractCegarLoop]: Abstraction has has 81 places, 87 transitions, 294 flow [2021-12-06 18:55:41,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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) [2021-12-06 18:55:41,556 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:55:41,556 INFO L254 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] [2021-12-06 18:55:41,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 18:55:41,557 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:55:41,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:55:41,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1859091749, now seen corresponding path program 1 times [2021-12-06 18:55:41,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:55:41,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761779451] [2021-12-06 18:55:41,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:55:41,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:55:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 18:55:41,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 18:55:41,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 18:55:41,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761779451] [2021-12-06 18:55:41,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761779451] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 18:55:41,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 18:55:41,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 18:55:41,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517847887] [2021-12-06 18:55:41,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 18:55:41,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 18:55:41,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 18:55:41,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 18:55:41,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 18:55:41,621 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 80 [2021-12-06 18:55:41,621 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 87 transitions, 294 flow. Second operand has 4 states, 4 states have (on average 67.75) internal successors, (271), 4 states have internal predecessors, (271), 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) [2021-12-06 18:55:41,622 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-12-06 18:55:41,622 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 80 [2021-12-06 18:55:41,622 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-12-06 18:55:41,694 INFO L129 PetriNetUnfolder]: 34/319 cut-off events. [2021-12-06 18:55:41,694 INFO L130 PetriNetUnfolder]: For 161/161 co-relation queries the response was YES. [2021-12-06 18:55:41,695 INFO L84 FinitePrefix]: Finished finitePrefix Result has 613 conditions, 319 events. 34/319 cut-off events. For 161/161 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1633 event pairs, 6 based on Foata normal form. 2/303 useless extension candidates. Maximal degree in co-relation 455. Up to 41 conditions per place. [2021-12-06 18:55:41,697 INFO L132 encePairwiseOnDemand]: 74/80 looper letters, 13 selfloop transitions, 9 changer transitions 0/95 dead transitions. [2021-12-06 18:55:41,697 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 95 transitions, 356 flow [2021-12-06 18:55:41,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 18:55:41,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-12-06 18:55:41,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 349 transitions. [2021-12-06 18:55:41,699 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8725 [2021-12-06 18:55:41,700 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 349 transitions. [2021-12-06 18:55:41,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 349 transitions. [2021-12-06 18:55:41,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 18:55:41,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 349 transitions. [2021-12-06 18:55:41,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 69.8) internal successors, (349), 5 states have internal predecessors, (349), 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) [2021-12-06 18:55:41,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 80.0) internal successors, (480), 6 states have internal predecessors, (480), 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) [2021-12-06 18:55:41,705 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 80.0) internal successors, (480), 6 states have internal predecessors, (480), 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) [2021-12-06 18:55:41,705 INFO L186 Difference]: Start difference. First operand has 81 places, 87 transitions, 294 flow. Second operand 5 states and 349 transitions. [2021-12-06 18:55:41,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 95 transitions, 356 flow [2021-12-06 18:55:41,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 95 transitions, 338 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-12-06 18:55:41,711 INFO L242 Difference]: Finished difference. Result has 85 places, 93 transitions, 324 flow [2021-12-06 18:55:41,712 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=324, PETRI_PLACES=85, PETRI_TRANSITIONS=93} [2021-12-06 18:55:41,712 INFO L334 CegarLoopForPetriNet]: 74 programPoint places, 11 predicate places. [2021-12-06 18:55:41,713 INFO L470 AbstractCegarLoop]: Abstraction has has 85 places, 93 transitions, 324 flow [2021-12-06 18:55:41,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.75) internal successors, (271), 4 states have internal predecessors, (271), 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) [2021-12-06 18:55:41,713 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-12-06 18:55:41,713 INFO L254 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] [2021-12-06 18:55:41,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 18:55:41,714 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2021-12-06 18:55:41,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 18:55:41,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1958984539, now seen corresponding path program 1 times [2021-12-06 18:55:41,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 18:55:41,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541563351] [2021-12-06 18:55:41,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 18:55:41,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 18:55:41,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:55:41,743 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 18:55:41,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 18:55:41,776 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 18:55:41,776 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 18:55:41,777 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2021-12-06 18:55:41,778 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2021-12-06 18:55:41,778 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2021-12-06 18:55:41,779 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 8 remaining) [2021-12-06 18:55:41,779 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2021-12-06 18:55:41,779 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2021-12-06 18:55:41,779 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2021-12-06 18:55:41,779 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2021-12-06 18:55:41,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 18:55:41,782 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-12-06 18:55:41,786 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-12-06 18:55:41,786 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 18:55:41,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 06:55:41 BasicIcfg [2021-12-06 18:55:41,816 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 18:55:41,817 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 18:55:41,817 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 18:55:41,817 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 18:55:41,817 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:55:40" (3/4) ... [2021-12-06 18:55:41,819 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 18:55:41,819 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 18:55:41,820 INFO L158 Benchmark]: Toolchain (without parser) took 1845.74ms. Allocated memory was 123.7MB in the beginning and 163.6MB in the end (delta: 39.8MB). Free memory was 79.0MB in the beginning and 122.2MB in the end (delta: -43.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:55:41,820 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 123.7MB. Free memory is still 97.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:55:41,821 INFO L158 Benchmark]: CACSL2BoogieTranslator took 481.93ms. Allocated memory is still 123.7MB. Free memory was 78.8MB in the beginning and 80.7MB in the end (delta: -1.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-06 18:55:41,821 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.10ms. Allocated memory is still 123.7MB. Free memory was 80.7MB in the beginning and 78.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 18:55:41,821 INFO L158 Benchmark]: Boogie Preprocessor took 25.07ms. Allocated memory is still 123.7MB. Free memory was 78.5MB in the beginning and 76.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 18:55:41,822 INFO L158 Benchmark]: RCFGBuilder took 308.17ms. Allocated memory is still 123.7MB. Free memory was 76.9MB in the beginning and 64.5MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-06 18:55:41,822 INFO L158 Benchmark]: TraceAbstraction took 976.89ms. Allocated memory was 123.7MB in the beginning and 163.6MB in the end (delta: 39.8MB). Free memory was 63.9MB in the beginning and 122.2MB in the end (delta: -58.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:55:41,823 INFO L158 Benchmark]: Witness Printer took 2.51ms. Allocated memory is still 163.6MB. Free memory is still 122.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 18:55:41,825 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 123.7MB. Free memory is still 97.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 481.93ms. Allocated memory is still 123.7MB. Free memory was 78.8MB in the beginning and 80.7MB in the end (delta: -1.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.10ms. Allocated memory is still 123.7MB. Free memory was 80.7MB in the beginning and 78.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.07ms. Allocated memory is still 123.7MB. Free memory was 78.5MB in the beginning and 76.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 308.17ms. Allocated memory is still 123.7MB. Free memory was 76.9MB in the beginning and 64.5MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 976.89ms. Allocated memory was 123.7MB in the beginning and 163.6MB in the end (delta: 39.8MB). Free memory was 63.9MB in the beginning and 122.2MB in the end (delta: -58.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.51ms. Allocated memory is still 163.6MB. Free memory is still 122.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 934]: Data race detected Data race detected The following path leads to a data race: [L918] 0 int myglobal; VAL [myglobal=0] [L919] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={1:0}, myglobal=0] [L920] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={1:0}, mutex2={2:0}, myglobal=0] [L928] 0 int i = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=1, i=1, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L929] 0 pthread_t id; VAL [i=1, id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L930] 0 pthread_mutex_t *m = &mutex1; VAL [i=1, id={3:0}, m={1:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L931] COND TRUE 0 \read(i) VAL [i=1, id={3:0}, m={1:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L931] 0 m = &mutex2 VAL [i=1, id={3:0}, m={2:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L932] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, i=1, id={3:0}, m={2:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L923] EXPR 1 myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L934] 0 myglobal+1 VAL [arg={0:0}, arg={0:0}, i=1, id={3:0}, m={2:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L923] 1 myglobal=myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, myglobal=1, myglobal=myglobal+1=25] [L934] 0 myglobal+1 VAL [arg={0:0}, arg={0:0}, i=1, id={3:0}, m={2:0}, mutex1={1:0}, mutex2={2:0}, myglobal=1, myglobal=myglobal+1=25] Now there is a data race on ~myglobal~0 between C: myglobal=myglobal+1 [923] and C: myglobal+1 [934] - UnprovableResult [Line: 934]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 936]: 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 petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 923]: 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, 97 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: 0.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 51 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91 IncrementalHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 49 mSDtfsCounter, 91 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=324occurred in iteration=4, InterpolantAutomatonStates: 14, 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, 218 NumberOfCodeBlocks, 218 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 166 ConstructedInterpolants, 0 QuantifiedInterpolants, 238 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 could not prove your program: unable to determine feasibility of some traces [2021-12-06 18:55:41,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51eacfe1-1fde-42c5-a031-4a5d722ec630/bin/uautomizer-DrprNOufMa/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